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20181019 This week, the mainstream price of China's Recarburizer market is stable, the low-grade Recarburizer market is generally trading, the company's inventory is high, and the medium and high Recarburizer market is better. The heating season is just around the corner, the downstream steel mill's production restriction policy is clear, the company's operating rate is low, and the receiving sentiment is relatively dull. The Rebondurizer market price is generally stable and the possibility of deposit and loss is high. The prices of raw materials in the medium and high-grade Recarburizer market were generally raised after the holiday, and the cost pressure of production enterprises increased. However, due to the limited acceptance of the downstream market, the company's quotation has not been raised.

At present, the main materials of Recarburizer are coal and petroleum coke. The petroleum coke is divided into ordinary calcined Recarburizer and graphitized Recarburizer because of the degree of calcination. After years of tempering in the market, the petroleum coke Recarburizer has gradually replaced the market position of coal-based Recarburizer, and the shipment volume is relatively high.

Calcined Recarburizer:
This week, the mainstream price of China's general calcined Recarburizer market remained stable, and the overall market shipments were generally due to the general consumption of downstream steel mills, and the demand was relatively light. Most of the recalcinated Recarburizer manufacturers are electric calcined anthracite enterprises, self-produced screening, and the environmental protection facilities of the local enterprises in the main producing area are undergoing the inspection and acceptance of environmental protection facilities. If the enterprises fail to meet the standards or restrict production, the market starts will be limited. The production of enterprises in North China is normal, but the reaction starts low, the market is generally trading, and the enterprises have inventory.

Downstream: China's construction steel prices are trading strongly this week. Recently, in the environmentally-friendly production and the leading regions, the stock market digested and enlarged, coupled with the decrease in the shipments of the leading steel mills, the stronger willingness to price, and the support of the construction steel market continued to rise. It is understood that the Ministry of Housing and Urban-Rural Development said that all localities should take effective measures to speed up the progress of construction, increase the construction of supporting infrastructure for sheds, and the terminal demand is still acceptable. However, as the price gradually increases, the terminal transaction will gradually decrease, and the market risk preference will be lower. The high price of the willingness to accept is relatively limited, which is not conducive to the sharp rise in prices. Coupled with the recent snail and steel billet red and green intertwined, resulting in a turbulent mentality in the building materials market, traders are cautious, and the atmosphere is strong. Market outlook: It is expected that the short-term building materials market will fluctuate and strengthen, with a range of 50 yuan/ton.

Calcined Petroleum Coke recarburizer:
This week, the price of China's calcined coke Recarburizer is stable, the raw material price is high, and the production cost of the enterprise is high. However, in view of the environmental impact of the downstream enterprises, the low-level operation, the demand for Recarburizer is relatively stable, the market is generally trading, the late heating season is coming, the calcined coke Prices may fluctuate due to limited production, etc., affecting Recarburizer shipments, or will benefit other quality Recarburizer.

Medium and high sulfur calcined coke: This week, the medium and high sulfur calcined coke market was generally trading, the shipment was stable, the market was slightly weak, and the price of the coke was not adjusted. In terms of production, the production load of Zhaoxing carbon is increasing, and individual enterprises in Shandong Guangrao are not expected to reduce production. It is understood that the impact of this winter's limited production policy on calcined coke enterprises will be less than expected. A new carbon-fired enterprise in Shandong is expected to ignite four new calciners at the end of this month, and the monthly output is expected to increase by about 20,000 tons. There is no inventory backlog, and there is no pressure on the trading market of calcined coke. However, at the same time, after the production load of the enterprise is increased, coupled with the recent poor performance of the aluminum market, the price of domestic medium and high sulfur calcined coke at the end of the month is still at a downward risk, and the estimated range is about 50 yuan/ton. .

Graphitized petroleum coke Recarburizer:
This week, the price of China's graphitized petroleum coke Recarburizer is stable. The price of raw material petroleum coke is stable and the price is high. The pressure on the production cost of Recarburizer is increasing. Among them, the production of individual enterprises in Henan and Xinjiang was suspended due to environmental protection, and the operating rate fell. In addition, the graphitization enterprises of anode materials in the market will start construction in the second half of the year, and the output will be released. Enterprises in Jiangsu Province have normal production, good shipments and smooth exports.

Late prediction: The general market for recarburization of Recarburizer is currently trading, and the stock of enterprises is higher, but the price of raw materials for electric calcination may be lower due to limited production, which stimulates the price of Recarburizer; the price of calcined coke and graphitized Recarburizer is driven by cost. The pressure is increasing, and the price push is stronger.

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Name: Recarburizer / Carbon Additive

Type:
(1) Graphitized petroleum coke (high carbon & low S 0.05%)

(2) Semi Graphitized petroleum coke (high carbon & medium S 0.3%)

Fixed Carbon(%):98.5
Sulphur(%):0.05
Nitrogen(%):0.03
Ash (%):0.8
Moisture (%):0.5
Volatile Matter (%) :0.8
We manufacture different size, like 0-1mm 1-5mm, 8-30mm

And we also supply the semi graphitizec petroleum coke with the specifications as below:

Fixed Carbon(%):98
Sulphur(%):0.3
Nitrogen(%):0.2
Ash (%):0.8
Moisture (%):0.5
Volatile Matter (%) :0.8 

Size: 0-1mm, 05-1mm, 0-3mm, 1-3mm
the different with the graphitized petroleum coke is the fixed carbon, sulphur and nitrogen.

Acting as the inoculant and carburizer, it's widely used in the special steel smelting and precision casting process, especially meeting the requirement of high quality product and strict control of sulfur content in the ductile iron and grey iron casting industry.

Foshan Yoshida Casting Material Co.,Ltd. manufacture the Graphitized Petroleum Coke with the specifications as below:

Fixed Carbon(%):98.5
Sulphur(%):0.05
Nitrogen(%):0.03
Ash (%):0.8
Moisture (%):0.5
Volatile Matter (%) :0.8
We manufacture different size, like 1-5mm, 8-30mm

And we also supply the semi graphitizec petroleum coke with the specifications as below:

Fixed Carbon(%):98
Sulphur(%):0.3
Nitrogen(%):0.2
Ash (%):0.8
Moisture (%):0.5
Volatile Matter (%) :0.8
the different with the graphitized petroleum coke is the fixed carbon, sulphur and nitrogen.

The graphitized recarburizer is a graphitized petroleum coke, which processes the petroleum coke into a graphite by high temperature. This process is the energization of the petroleum coke and then the high temperature of 3000 degrees, so that the carbon molecular form of the petroleum coke is changed from an irregular arrangement. In a manner of evenly arranging the hexagonal squares, other impurities in the petroleum coke are also volatilized through this process, thereby obtaining graphitized petroleum coke having higher carbon purity and lower sulfur, and the petroleum coke can be better decomposed in the molten iron. in.

What is carbon additive? Carbon additive is a carbon or petroleum coke follow-up product of black or gray particles (or blocks) with high carbon content. The material is mainly coal and petroleum coke. The petroleum coke is divided into general calcined petroleum coke. (calcined coke or calcined coke) and graphitized petroleum coke. The carbon additive is used to reduce the oxygen content in the molten iron mainly during metal smelting and improve the mechanical properties of the casting. In the new synthetic cast iron smelting process, the amount of scrap steel used is greatly increased. By adding a carbon additive to adjust the carbon content of the molten iron, the production cost is greatly reduced while ensuring the quality of the molten iron.

Types of carbon additive

According to the existence form of carbon atoms, carbon additive can be divided into graphitized carbon additive and non-graphitized carbon additive. Graphitized carbon additive mainly includes graphitized petroleum coke and graphite electrode. Graphitized petroleum coke carbon additive is the most widely used in the foundry industry. The production process is to convert the raw material petroleum coke in a graphitization furnace through a high temperature of 2200-2600 °C, so that the carbon crystallization of the petroleum coke amorphous layer structure is transformed into The high-temperature heat treatment process of the three-dimensional ordered graphite crystal, that is, through the graphitization process, reaches the graphitization state. The non-graphitized carbon additive mainly includes: calcined petroleum coke, coal carbon additive, etc., calcined petroleum coke refers to petroleum coke heated at 1200-1500 ° C high temperature, the treatment temperature is low, and the crystal structure has not changed. Due to the high ash content and volatile matter, coal-based carbon additive is rarely used in electric arc furnace smelting. The indicators for measuring the quality of carbon additives are fixed carbon content, sulfur, volatile matter, ash, nitrogen content and water. After high temperature graphitization, the graphitized carbon additive has a much lower sulfur and nitrogen content than the non-graphitized carbon additive.

Carbon additive index: fixed carbon, ash, volatile matter

The fixed carbon of carbon additive is different from the carbon content. The fixed carbon value is calculated based on the moisture, volatile matter, ash and sulfur content of the sample, and the carbon content can be directly detected by the instrument. The fixed carbon content is high and the ash content is low, so the carbonization effect is better. The high ash content in the carbon additive generates a large amount of soot and slag during the smelting process, increases energy consumption, and increases the labor intensity of the slag.

Carbon additive index: sulfur

The sulfur content of ordinary calcined coke has a relatively high grade, generally less than 3% of sulfur to 0.1%, and the sulfur content of graphitized carbon additive is generally less than 0.05%. In ordinary cast iron, sulfur element has stable cementite and prevents the expansion of graphitization. In the production of ductile iron and vermicular graphite iron, a graphitized carbon additive with low sulfur content should be used. If the sulfur content is too high, the ball will be affected. The effect is to consume more spheroidizing agent and increase the production cost; the calcined petroleum coke carbon additive is used in the production of some gray iron castings because of the lower calcination temperature and higher sulfur content, generally less than 1%.

Carbon additive index: nitrogen content

Nitrogen content is an important indicator of the quality of carbon additive. In general, when the foundry purchases the carbon additive, the first is to pay attention to the price of the carbon additive; the second is the fixed carbon, sulfur, ash, volatile matter, and moisture content in the carbon additive, and less attention is paid to the nitrogen content. Ordinary calcined petroleum coke carbon additive, the calcination temperature is low, and the nitrogen and sulfur contents are high. When producing gray iron castings, the scrap steel itself will bring in a part of nitrogen. If the scrap is added in a large proportion, the amount of carbon additive will increase accordingly. If ordinary carbon calcined carbon additive with high nitrogen content is used, the molten iron is used in molten iron. The nitrogen content will increase significantly. Excessive dissolved nitrogen in the molten iron hinders graphitization, increases the stability of the carbide, promotes the formation of D-type graphite, improves the hardness, and deteriorates the processing properties of the casting.

For gray cast iron, the proper amount of nitrogen can shorten the length of the graphite sheet, increase the degree of bending, passivate the end, reduce the aspect ratio, stabilize the pearlite of the matrix, refine the grain structure and improve the tensile strength of the casting. And the role of hardness. According to the data, when the iron is N>0.012%, there is a possibility of nitrogen hole defects in the casting. Nitrogen pores are commonly found in the interior, surface or near surface of castings. They are round, rectangular and irregular in shape and are one of the common defects in casting production. The graphitized carbon additive is subjected to high-temperature desulfurization and denitrification treatment, and the content of nitrogen and sulfur is very low. The content of molten iron in the molten iron using graphitized carbon additive is generally low.

Factors affecting the absorption rate of carbon additive: The factors affecting the absorption rate of carbon additive are mainly the way of adding carbon additive, the chemical composition of molten iron, the temperature of molten iron, and the particle size of carbon additive.

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The recarburizer is mainly a calcined coal recarburizer, a calcined coke recarburizer and a graphitized petroleum coke recarburizer.
(2018.09.21) This week, the domestic carbon refining agent market started to be stable, with good trading, and the prices of all grades were stable. Due to the influence of many factors such as environmental protection and trade wars, the downstream steel mills are affected by many factors such as environmental protection and trade warfare. In general, the shipment of recarburizers is limited. In addition, while the enterprises are in environmental protection, the production is basically stable and there are some stocks. The price factor is small. The overall performance of the post-calcined coke recarburizer market was stable. The company said that although the price is high, the supply and demand side is relatively balanced, and the company is steadily moving forward; the graphitization and recarburizer market has raised the price of individual enterprises, the market is well shipped, and the production situation of the enterprise is relatively high. stable.

General calcined coal recarburizer
This week, the mainstream price of China's general calcined recarburizer market remained stable. The enterprises in Ningxia, the main producing area, started low, and the market supply was relatively stable. The 60th anniversary of the establishment of the autonomous region was a celebration of local transportation. The production in the North China market is stable and the environmental protection pressure is still relatively large. Downstream steel mills are affected by environmental protection, limited start-ups, relatively stable demand, and bearish prices for recarburizers.

The calcined coal recarburizer has a close relationship with the steel market. This week, domestic steel prices have been adjusted and operated steadily. The misunderstanding of the environmental protection policy has been revised. The Sino-US trade war has intensified. The NDRC has indicated that it will increase the infrastructure to fill the shortcomings. Zhenzhen expects long-term demand. In the short-term, the downstream demand performance is acceptable, the inventory is low, and the cost end support is strong. It is expected that the short-term domestic steel market will be consolidating.

Calcined coke recarburizer
This week, the mainstream price of China's calcined coke market remained stable, and the company started to recover more than before, mainly supported by the price of raw material petroleum coke, and the cost pressure was reduced. However, in view of the high price in the downstream market, the price intention is weak, the production enterprises are still shipping, and the price of the carbonizer has not yet fully fluctuated. In terms of petroleum coke, the petroleum coke index of Sinopec's refinery is basically stable, the shipment performance is acceptable, and there is no new change in the device dynamics. As the Mid-Autumn Festival and the National Day are approaching, the refinery's willingness to trade will increase, while the downstream enterprises will purchase more on demand. It is expected that the price of petroleum coke will remain stable in the short term. In addition, due to the upcoming winter heating season in Xinjiang, the downstream enterprises will increase their enthusiasm for receiving goods. Therefore, the petroleum coke in the northwest region is relatively better.

Raw materials: medium and high sulfur calcined coke: This week, the domestic medium and high sulfur calcined coke market was stable, and the coke price was unchanged from last week. This week, environmental protection has not affected the production of calcined enterprises in various regions. It is understood that at present, most of the calcined coke production enterprises are mainly engaged in the implementation of pre-contracts. For the time being, most of them have no inventory pressure. Recently, the downstream part of the contract has begun to reduce prices, and the price of petroleum coke still has downside risks.

Graphitized petroleum coke recarburizer
This week, the market price of China's graphitized petroleum coke recarburizer was stable, the price of raw material petroleum coke fell, and the cost pressure slowed down. Among them, the production of individual enterprises in Henan and Xinjiang was suspended due to environmental protection, and the operating rate fell. In addition, the graphitization enterprises of anode materials in the market will start construction in the second half of the year, and the output will be released. Graphitization and recarburizers are highly concentrated in Inner Mongolia. Enterprises in Jiangsu Province have normal production, good shipments and smooth exports.

Forecast of the market outlook: the price of raw material per-calcined coal will rebound in September due to the limited price of environmental protection acceptance enterprises, and the price of general calcined carbonizer will develop in a stable-up mode. Among them, the price of calcined coke and graphitized recarburizer is driven by cost, and the price may rise.

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In the process of iron and steel smelting, if the carbon content in the molten iron is not improved well, it will affect the quality of the steel and increase the cost of smelting and casting. In order to ensure the quality of steel casting, the quality of smelting can be improved by increasing the amount of smelted pig iron, but the raw iron of pig iron is relatively high. When using a recarburizer, it is not necessary to put too much pig iron. It is possible to increase the carbon content in the molten iron.

At present, there are many materials for cast iron recarburizers on the market. In general, coal quality recarburizers, petroleum coke recarburizers, calcined petroleum cokes, graphitized petroleum coke recarburizers and artificial graphite can be used as cast iron smelting. Recarburizer used. Although these products can be used as recarburizers, you must choose the right recarburizer when you buy them. If the quality of the products to be cast is high, you need to choose artificial graphitized petroleum coke recarburizer.

If the quality of the smelting metal is not high, you can choose a lower cost recarburizer. For example, in converter smelting, when high carbon steel is used, you can use petroleum coke with a lot of impurities as a recarburizer. However, the requirements for the recarburizer for the top-blown converter steelmaking are higher than the carbon of the fixed furnace recarburizer. The ash, volatiles, sulfur, phosphorus, nitrogen and other impurities are also required to be high in content, and are required to be dry, clean, and granular. Moderately, it is necessary to choose a calcined coke recarburizer and a graphitized recarburizer.

Among them, the most used mainstream carbonizers specifications are: fixed carbon C ≥ 98%, volatile matter ≤ 1.0%, sulfur content ≤ 1%, moisture ≤ 0.5%, particle size is more than 1-5mm, this recarburizer The indicator shows the calcined petroleum coke recarburizer, which is calcined petroleum coke. In the past, in the domestic smelting industry, relatively low-end non-graphitizing recarburizers were generally used. With the improvement of product quality and upgrading, more and more enterprises using graphitized petroleum coke in China will increase carbonization of graphitized petroleum coke. The indicators of the agent are: fixed carbon C ≥ 98.5%, volatile matter ≤ 0.5%, sulfur content ≤ 0.1%, moisture ≤ 0.5%, particle size between 0-5mm.

Different types of recarburizers are used differently. In the process of selecting a recarburizing agent for steel making, the particle size should be moderate, the particle size is too fine to be easily burned, and when it is too coarse to be added, it floats on the surface of the molten steel and is not easily absorbed by the molten steel. With the development of the market, the quality requirements of steelmaking refining agents are getting higher and higher, especially the conversion from coal quality carbonizers to calcined petroleum coke recarburizers, or graphitized petroleum coke recarburizers. .

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The recarburizer is a material used to increase the carbon content. The main component is carbon. There are many materials that can be used as a recarburizer. Commonly used are coke and anthracite, calcined petroleum coke, graphitized petroleum coke, and graphite (artificial graphite). , natural graphite) and mixtures made from such materials.

1. Coke and anthracite
Coke is a type of solid fuel. It is obtained by dry distillation of coal under high temperature conditions of about 1000 °C. The main component is fixed carbon, followed by ash, and contains less volatile matter and sulfur. Silver-gray, metallic luster. Hard and porous. In addition to a large amount of coke and iron non-ferrous metal smelting (metallurgical coke), coke is also used in foundry, chemical, calcium carbide and ferroalloys, and its quality requirements are different. For example, for casting coke, it is generally required to have large particle size, low porosity, high fixed carbon and low sulfur content; coking for chemical gasification is not strict with strength, but requires good reactivity, high ash melting point, and coke requirement for calcium carbide production. Try to increase the fixed carbon content.

Anthracite is a hard, dense and high-gloss coal mine. The main applications of anthracite lump coal are chemical fertilizer (nitrogen fertilizer, synthetic ammonia), ceramics, manufacturing forging and other industries; anthracite coal is mainly used in the metallurgical industry for blast furnace injection (blast furnace coal mainly includes anthracite, lean coal, lean coal and gas coal) ).

2. Calcined petroleum coke (calcined coke or calcined coke)
Calcined petroleum coke is a widely used recarburizer, which is obtained by calcining petroleum coke. Petroleum coke is a by-product of refined crude oil. Residual oil and petroleum asphalt obtained by vacuum distillation or vacuum distillation can be used as raw materials for petroleum coke, and then coke is obtained to obtain raw petroleum coke. The annual production of American petroleum coke is about 30 million T. The raw petroleum coke has high impurity content and cannot be directly used as a recarburizer. It must be calcined first.

Raw petroleum coke has spongy, needle-like, granular and fluid states.
Sponge petroleum coke is produced by delayed coking. Because of its high sulfur and metal content, it is usually used as a fuel for calcination and as a raw material for calcined petroleum coke. The calcined plum cotton coke is mainly used in the aluminum industry and as a recarburizer.
The acicular petroleum coke is obtained by a delayed coking process using a raw material having a high content of aromatic hydrocarbons and a low impurity content. This coke has a needle-like structure that is easily broken, sometimes referred to as graphite coke, and is mainly used for the manufacture of graphite electrodes after calcination.
Granular petroleum coke is a hard granule. It is a raw material with a high content of sulfur and bitumen. It is produced by delayed coking and is mainly used as a fuel.
The fluid petroleum coke is obtained by continuous coking in a fluidized bed. It is in the form of fine particles, has no directional structure, high sulfur content and low volatile content.
The burning of petroleum coke is to remove sulfur, moisture, and volatiles. The raw petroleum coke is burned at 1200 ° C - 1350 t ° C to make it substantially pure carbon.
The largest user of smoked petroleum coke is the aluminum industry, 7 which is used to make anodes for the reduction of bauxite. The United States produces smoked petroleum coke, which accounts for about 6% of cast iron enhancers.

3. Graphitized petroleum coke
Graphitized petroleum coke refers to the high-temperature graphitization of petroleum coke. Under the high temperature of 3000 °C, the carbon molecular form in the petroleum coke is changed from an irregular arrangement to a hexagonal uniform arrangement. The agent is most easily decomposed in molten iron.

Characteristics of graphitized recarburizer
    1) The low-sulfur graphitization recarburizer has a high decomposition rate and a high absorption rate, and can reach more than 90%.
    2) High carbon, low sulfur, low nitrogen, and extremely harmful components.
    3) Adding graphite nucleus to molten steel and molten iron, more uniform and finer distribution in molten steel and molten iron, so that the performance is more excellent and stable.

4. Graphite is an allotrope of elemental carbon. Each carbon atom is connected with three other carbon atoms (multiple hexagons arranged in a honeycomb shape) to form a covalent molecule by covalent bonding. . Graphite and carbon products have excellent performance, are increasingly used, and the production capacity and benefits are growing rapidly. There are more enterprises of graphite and carbon products above the scale of China, and the concentration is low. With the rapid development of China's metallurgy, chemical, machinery, medical equipment, nuclear power, automotive, aerospace and other industries, the demand for graphite and carbon products will continue to grow in these industries, and China's graphite and carbon products industry will maintain rapid growth. . Graphite is mainly divided into natural graphite and artificial graphite.

4.1. Natural graphite
Natural graphite can be divided into two types: flake graphite and microcrystalline graphite. Microcrystalline graphite has a high ash content and is generally not used as a carbon reinforcer for cast iron. There are many varieties of flake graphite. High-carbon flake graphite needs to be extracted by chemical methods, or heated to high temperature to decompose and volatilize the oxides. This flake graphite has low yield and high price, and generally does not act as a recarburizer; low carbon scales Graphite has a high ash content and should not be used as a recarburizer; it is mainly used as a carbon reinforcer for medium carbon graphite, but it is not used in large amounts.

4.2. Artificial graphite
Among the above various recarburizing agents, the best quality is artificial graphite. The main raw material for the manufacture of artificial graphite is powdered high-quality simmered petroleum coke, in which asphalt is added as a binder, and a small amount of other auxiliary materials are added. After the various raw materials are combined, they are press-formed and then treated in a non-oxidizing atmosphere at 2500 to 3000 ° C to be graphitized. After high temperature treatment, the ash, sulfur and gas contents are greatly reduced. Due to the high price of artificial graphite products, the artificial graphite breakers commonly used in foundries are mostly cut when manufacturing graphite electrodes.
Recycled materials such as chips, used electrodes and graphite blocks to reduce production costs. In the smelting of ductile iron, in order to make the metallurgical quality of cast iron superior, the carbon-reducing agent should be the first choice of artificial graphite. For this reason, it is better to purchase scrap electrodes from nearby companies that use electric arc furnace steelmaking or electrolytic aluminum production enterprises, and crush them to the required particle size. .

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180909 This week, China's recarburizer market started to work stably and trading was good. Among them, the market price of recalcurizer (common calcined coal) is lower. The main reason is that the downstream steel mills are affected by many factors such as environmental protection and trade warfare. In general, recarburizer shipments are limited, and the company is basically stable in environmental protection. Most of the inventory, the market price will decline. The market price of calcined coke recarburizer (calcined petroleum coke) was stable overall. The company said that although the price is high, the supply and demand side is relatively balanced, and the market is stable; the graphitized rebcarburizer (graphitized petroleum coke) market is raised by individual companies, and the market is out. The goods are in good condition and the production situation of the company is relatively stable.

Calcined coal recarburizer:
This week, the mainstream price of China's general calcined coal rebcarurizer market was lowered. The production in the main producing area of ​​Ningxia is stable overall, affected by the rain, and the transportation is slightly limited. The enterprises are mostly in the process of rectification and maintenance, preparing for the acceptance at the end of September. Due to the downstream receiving, the enterprises are more or less in stock, the market In general, the overall transaction is relatively light, and the mainstream market price is down. The overall market production in North China is relatively stable, but environmental protection pressure is still not small. The overall performance of the market is generally high, mainly depending on the poor start of the downstream steel mills.

Calcined post-recarburizer:
This week, the mainstream price of the calcined coke recarburizer market remained stable and the market was stable. In the northeast and north China, the production of enterprises is stable, the price of calcined coke is rising, and the cost pressure of enterprises is increasing. However, in view of the high price in the downstream market, the price intention is weak, the production enterprises are still shipping, and the mainstream prices of the market have not yet fully fluctuated.

Graphitized petroleum coke recarburizer:
This week, the market price of China's graphitized petroleum coke recarburizer was stable, and the company's price intention was strong. The main reason was the increase in cost. The crude oil price of raw materials rose in the mainstream, and the high-end operation, individual companies raised product prices. Among them, the production of individual enterprises in Henan and Xinjiang was suspended due to environmental protection, and the operating rate fell. In addition, the graphitization enterprises of anode materials in the market will start construction in the second half of the year, and the output will be released. Graphitized rebcarurizer is highly concentrated in the Inner Mongolia region. Enterprises in Jiangsu Province have normal production, good shipments and smooth exports.

Recarburizer is mainly used in steel smelting process. Due to improper ingredients or improper loading and excessive decarburization, the carbon content in steel or iron sometimes fails to meet the expected requirements. At this time, carbon is added to steel or molten iron. The relationship between recarburizer and steel is also very close. Domestic steel prices have stabilized this week. Recently, the market turnover is weak, but the recent environmental protection inspection work in Shandong is in full swing. The inventory of various steel mills has decreased, and the market price support is strong. Steel mills have obvious willingness to price, and the market price on the weekend has also risen slightly, but the mainstream temporary stability has been comprehensively considered. It is expected that the short building materials market will be operated in a multi-country volatility with a range of 50 yuan/ton.

Forecast of the market outlook: the raw material price of raw calcined coal will rebound in September due to the limited price of environmental protection acceptance enterprises, and the price of the crude calcined recarburizer will develop in a stable-up mode. The price of the calcined recarburizer and the graphitized petroleum coke recarburizer is driven by cost, and the price is stable or slightly upward.

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The use of recarburizers, as the name implies, is to increase the content of carbon. Its main purpose is to increase the carbon content lost during the steelmaking process. If the carbon content does not meet the expected requirements during the steelmaking process, a certain proportion is required. The recarburizer enhances the carbon content of the molten steel and smelts the ideal steel.

There are many kinds of raw materials for recarburizers, and the production process is also different. There are wood carbons, coal carbons, petroleum cokes, etc., while petroleum cokes are divided into calcined coke recarburizers and graphitized recarburizers. The current mainstream recarburizer.

The calcined petroleum coke recarburizer refers to the calcination of the raw material petroleum coke, and the temperature is controlled at 1250~1380°C. During the calcination process, the structure and element composition of the petroleum coke undergo a series of deep changes, thereby improving their physics. Chemical properties.
Why is petroleum coke calcined?
The purpose of calcination:
1. Eliminate volatiles and moisture in petroleum coke raw materials. After calcination, the volatile matter is 0.5% or less, and the water content is 0.3% or less.
The calcined volatiles and moisture represent the degree of calcination, which does not require secondary shrinkage and crack formation during calcination.
2. Improve the density and mechanical strength of petroleum coke raw materials. The true density is 2.00 g/cm3 or more.
The true density of the calcined coke affects the true density of the final product, and the mechanical strength is low. The bulk density is low, which affects the molding. The main performance is difficult to form. The height of the green block does not meet the requirements within the required time, which affects the operation of the aluminum electrolytic cell.
3. Improve the electrical conductivity of petroleum coke raw materials.
The calcined coke specific resistance affects the final product resistivity.
4. Improve the chemical stability of petroleum coke raw materials. Improved oxidation resistance.

Graphitized petroleum coke recarburizer is a process of treating petroleum coke into high temperature by graphite. This process is the process of energizing petroleum coke and then calcining at a high temperature of 3000 degrees, so that the carbon molecular form of petroleum coke is changed from irregular arrangement to hexagonal uniformity. In the way of arrangement, petroleum coke in this way can be better decomposed in molten iron to improve the effect of carbon absorption. Graphitized petroleum coke is the best refining agent for smelting. In the steelmaking industry, to produce good steel, there must be good raw materials, including good recarburizers, and graphitized petroleum coke is the best recarburizer. In the absence of graphitized petroleum coke, the graphite electrode has less scrap and higher price, which not only increases the cost of steelmaking, but also restricts the development of the steel industry. The appearance of graphitized petroleum coke breaks this bottleneck.

How much is a ton of recarburizer? The price of recarburizer depends on the specific indicators and particle size, such as the amount of fixed carbon, the amount of sulfur, the size of the grain, etc., in order to report the exact price, as well as the source of goods and freight, etc., Foshan Jitian Foundry Co., Ltd. mainly supplies calcined After the coke recarburizer and graphitization recarburizer, for Guangdong, Hunan, Guangxi, Jiangxi, Fujian and other provinces, customers are welcome to contact 2018 the most new carbon agent price, indicators and granularity!

Calcined coke recarburizer (petroleum coke): 2018.09.02 This week, the mainstream price of calcined coke recarburizer market remained stable, and individual companies offered slightly higher prices, and the market was stable. Raw materials: The price of domestic medium-high sulfur calcined coke has risen this week, with a concentration of 70-150 yuan/ton. The main reason for the increase in coke price is supply reduction and cost increase. In terms of raw materials, domestic petroleum coke prices are still rising mainly this week. The local refinery coke price has started to fall slightly on Wednesday. On the supply side, the supply of calcined coke in Shandong has decreased this week, mainly due to the impact of environmental supervision. Shandong this week The operating rate of Dongying calcined coke was significantly reduced. Most enterprises cut production by half and one was shut down. The production of calcined coke in other parts of Shandong has not been affected significantly. The fluctuations of calcined coke in Jiangsu and Hebei this week are not significant. Market outlook: It is expected that the market price of domestic medium and high sulfur calcined coke will be stabilized and stabilized next week.

Graphitized petroleum coke recarburizer (petroleum coke): 2018.09.02 This week, the price of graphitized petroleum coke recarburizer was stable, the market spot was abundant, and the shipment situation was general. Among them, the production of individual enterprises in Henan and Xinjiang was suspended due to environmental protection, and the operating rate fell. In addition, the graphitization enterprises of anode materials in the anode market will be put into production in the second half of the year. It is expected that the output will be released one after another, affecting the overall supply of graphitized recarburizer market. The concentration of negative electrode enterprises in Inner Mongolia is high, and the graphitization and recarburizer processing enterprises have also been transferred, and the market concentration has increased. The Jiangsu area is operating normally and the shipments are good. The orders are mainly for the old customers. The anode materials processing enterprises in Qinghai, Lanzhou, Ningxia, Inner Mongolia and other regions have higher activity and increased production.

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At this stage, the recarburizing agent is mainly a calcined coal recarburizer (coal), a calcined coke recarburizer (petroleum coke) and a graphitized recarburizer (petroleum coke), and the mainstream is a post-calcined coke recarburizer, individual enterprises. If the quality requirements are good, the graphitized recarburizer will be chosen but the price will be high. This week, the mainstream price of China's carbon refining agent market was stable and the market was trading normally. At the same time, due to strict environmental inspections, the situation in various places is relatively severe.

Among them, the market price of general calcined coal recarburizer is stable, some manufacturers offer a small decrease, mainly due to downstream receiving; the post-calcining coke recarburizer is subject to rising price of raw petroleum coke, and the price of small enterprises is raised, but the mainstream price has not yet appeared; The market price of chemical refining agents is relatively stable. The start-up in Jiangsu has been slightly reduced, the shipments are normal, and the environmental protection pressure is very high. The orders are mainly for the old customers. The anode materials processing enterprises in Qinghai, Lanzhou, Ningxia and Inner Mongolia are more active.

Pu calcined coal recarburizer (coal quality): This week, the overall market price of China's general calcined coal recarburizer has been slightly reduced. Some regions have also increased due to supply and demand. The market is generally trading, and enterprises are mostly implementing old orders and maintaining Old customers are the mainstay. Enterprises in the main producing area of ​​Ningxia are still in the process of rectification of dust-proof equipment, waiting for acceptance.

Calcined coke recarburizer (petroleum coke): This week, the mainstream price of calcined coke recarburizer market remained stable, with individual companies offering slightly higher prices and stable market transactions. Raw materials: The price of domestic medium-high sulfur calcined coke has risen this week, with a concentration of 70-150 yuan/ton. The main reason for the increase in coke price is supply reduction and cost increase. In terms of raw materials, domestic petroleum coke prices are still rising mainly this week. The local refinery coke price has started to fall slightly on Wednesday. On the supply side, the supply of calcined coke in Shandong has decreased this week, mainly due to the impact of environmental supervision. Shandong this week The operating rate of Dongying calcined coke was significantly reduced. Most enterprises cut production by half and one was shut down. The production of calcined coke in other parts of Shandong has not been affected significantly. The fluctuations of calcined coke in Jiangsu and Hebei this week are not significant. Market outlook: It is expected that the market price of domestic medium and high sulfur calcined coke will be stabilized and stabilized next week.

Relevant industry impact: This week, the domestic steel prices went down as a whole. As the snails fell sharply, the market wait-and-see atmosphere was heavier, and the fear of high sentiment spread. In addition, the pressure on merchants at the end of the month was highlighted, and the steel price was ushered back and forth. As the environmental protection policy continues to be high-pressure, the cost end is strongly supported, and the steel mills are still willing to pay a good price. It is expected that the short-term domestic steel prices will stabilize and adjust, and the downward trend will gradually narrow. For the refining agent market, the procurement enthusiasm is relatively slow, and the mainstream transaction price of the common specifications of the calcined coke recarburizer enterprises.

Graphitized petroleum coke recarburizer (petroleum coke): This week, the price of graphitized petroleum coke recarburizer was stable, the market spot was abundant, and the shipment situation was general. Among them, the production of individual enterprises in Henan and Xinjiang was suspended due to environmental protection, and the operating rate fell. In addition, the graphitization enterprises of anode materials in the anode market will be put into production in the second half of the year. It is expected that the output will be released one after another, affecting the overall supply of graphitized recarburizer market. The concentration of negative electrode enterprises in Inner Mongolia is high, and the graphitization and recarburizer processing enterprises have also been transferred, and the market concentration has increased. The Jiangsu area is operating normally and the shipments are good. The orders are mainly for the old customers. The anode materials processing enterprises in Qinghai, Lanzhou, Ningxia, Inner Mongolia and other regions have higher activity and increased production.

The market outlook: the price of the calcined coal recarburizer is stable or slightly decreased. The calcined coke refiner has risen slightly and stabilized. It is mainly affected by the price of raw petroleum coke, and the price of graphitized recarburizer remains stable.

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