20181104 This week, the mainstream of petroleum coke market is stable, the support of the downstream market is limited, all enterprises are purchasing on demand, and the trading of petroleum coke market has slowed down. In detail, the price of petroleum coke in Sinopec's refinery was stable this week, and only some high-sulfur coke prices fluctuated slightly.
Shipments along the Yangtze River this week were large, mainly for the delivery before the Shanghai Expo. The individual ports along the Yangtze River stopped operations on November 2-11, and the prices of other varieties were temporarily stabilized. Formosa Plastics Coke is about to start tendering in December, and there are more negative factors in the near future. In the early period, high inventory, southern metal silicon will enter the off-season, and some common downstream refinery petroleum coke prices are relatively low, the external disk high sulfur coke price fell, the RMB exchange rate continued. Falling, there is still a slight risk of falling under current prices.
Prebaked anode: This week, the mainstream price of China's prebaked anode market has stabilized. Production: Shandong enterprises produce normal production, and ultra-low emission in autumn and winter can not limit production; Henan Zhengzhou area requires carbon enterprises to reduce 50% of all pollution sources, mainly controlling carbon emissions; in addition to individual enterprises, Hebei carbon enterprises Most of them meet the standard A category and are not restricted. Market outlook: raw material petroleum coke, coal bitumen this week, the overall price is stable, the price of individual enterprises is lowered, the support of cost side is limited; the heating season is approaching, the market supply may increase, but the growth rate is limited, some enterprises have maintained half of the work; downstream electrolysis The aluminum market fell below the fourth level, and the operating pressure of the company was relatively high. It was not excluded that the company actively reduced production in the later period and affected the consumption of the anode market. In general, most municipal policies are not yet clear, so due to multi-faceted factors, the price of prebaked anodes may fluctuate and stabilize in the short term.
Metal silicon: This week, the metal silicon market performance is weak and stable, and the price of low-grade metallurgical grade metal silicon market has dropped slightly. The price of oxygen metallurgical grade silicon metal ports in the northern region dropped by 100-200 yuan/ton, while the market for non-oxygen 553# metal silicon was relatively light. The markets in various regions were light and the orders were few. Previously, the price strategy adopted by the manufacturers to deal with the shutdown during the dry season has not been applied. Some enterprises in Sichuan and Chongqing have already lowered the price of non-oxygen 553# metal silicon by a hundred yuan. The high-grade metallurgical grade metal silicon market is generally stable. Recently, the high-grade metal silicon output is low. The planned production of silicon enterprises remains on the sidelines. However, due to weak demand, prices are still not decreasing. The chemical grade 421# metal silicon market has a large gap. Due to raw material problems in Sichuan, the output of quality products is less, but the demand for long-term fixed customers is more, and there is a shortage of supply. However, the production of 421# metal silicon in Yunnan and other places in Xinjiang is relatively large, resulting in a sufficient spot of 421# metal silicon in the overall market. On the whole, in November, chemical companies all over the country had maintenance plans, and the demand for metal 421 in the later period was weak.
Steel: This week, domestic steel prices are dominated by high-level consolidation. Leading steel mills have a strong willingness to price and boost market confidence. Social stocks continued to decline, and the decline was obvious. The environmental protection and production restriction policies were strict and the steel prices were supported. However, due to factors such as tight capital at the end of the month, the transaction was relatively light. It is expected that short-term domestic steel prices will likely rise and fall.
Cement: This week, the national cement market price has blossomed everywhere, and the price in the southern market has been singing all the way. On the 31st, the price of clinker in the Yangtze River Delta region in China rose sharply by 50 yuan/ton, driving the price of cement in the surrounding areas of Zhejiang and Jiangsu to continue to rise. During the week, Jiangxi, Shanghai and Shandong all had different price increases. The cement market in Central and South China was stable. There has been a rise, and the Guangdong region has once again gained a round. The two lakes market is still showing signs of rising. The price changes in Henan are frequent and the offer is chaotic. In the southwest Sichuan-Chongqing region, the price increase was discounted, the market in North China was stable, the prices in Tianjin and Hebei increased, and the prices in the northwest of Shaanxi Province were higher than those in Shaanxi, and the rest were stable. Affected by temperature, demand is gradually declining.
The petroleum coke from the delayed coking unit is called raw coke, and the process of heat treatment of high temperature (1250~1380 °C) under the condition of insulating air is called calcination. The petroleum coke after calcination is called calcined petroleum coke, also called Calcined coke and calcined petcoke, they have different names but are the same product. The purpose of calcination is to discharge moisture and volatiles in the raw materials, so that the petroleum coke raw materials are sufficiently shrunk to improve their physical and chemical properties.
Under normal circumstances, the petroleum coke starts to escape volatiles from 200 ° C. When the temperature reaches 1100 ° C, the volatiles basically escape. In the range of 500 ° C to 800 ° C, the volatiles of petroleum cokes escape the most. At about 700 °C, the petroleum coke volatiles are mainly hydrogen decomposed by hydrocarbons and hydrocarbon pyrolysis. As the temperature continues to increase, the gas escape amount decreases, and the pyrolysis temperature increases, further promoting the structure. Tightening. In the calcination of petroleum coke, the O2, N2, CO, CO2, and S elements are sequentially removed by heat, and a planar network structure is formed inside the petroleum coke at 1350 °C. This change in microstructure reflects an improvement in the physical properties of the calcined coke (such as true density, electrical conductivity, strength, etc.).
Calcined petroleum coke is mainly used for prebaked anode and cathode used in electrolytic aluminum, carbonizing agent for production in metallurgical steel industry, graphite electrode, carbon electrode for industrial silicon, yellow phosphorus and iron alloy. Therefore, both electrolytic aluminum plants, independent carbon plants and refineries are concerned about the progress and development of petroleum coke calcination technology.
Why is petroleum coke need 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.
|Name||Color||Origin||Packing Details||Payment||MOQ||Payment terms|
|calcined petroleum coke||Black||China||Generally in 1mt Jumbo bag||T/T or LC||20 mt||FOB /CNF /CIF|
Foshan Yoshida Casting Material Co.,LTD. established in 2012, after these years development, it has formed the calcined petroleum coke and graphitized petroleum coke as main products, also supply other related carbon products.
We supply calcined petroleum coke(CPC) locally in China domestic market on a large scale and export to international markets for many years. Calcined petroleum coke demand is more and more widly in international market especially India, South Korea, Japan, Turkey, Iran, Germany, Americal, Brazil Germany. It is mainly used for metallurgy & foundry, it can improve the carbon content in steel-melting and casting, Also it can increase the quantity of scrap steel and reduce the quantity of pig iron, or use no scrap iron at all. It's also can be used for brake pedal and friction material.
Abstract: carbon additive, as its name implies, is used to increase the carbon content of iron melting or steelmaking. If it is formed by graphite powder, which can greatly increase the amount of scrap steel, reduce pig iron or do not use pig iron. Carbon additive can reduce casting cost to a certain extent.
The classification of carbon additive for casting can be divided into several different categories according to different classification criteria and standards.
1. According to casting purpose, it is divided into: nodular iron carbon additive, gray iron carbon additive, cast steel carbon additive, special carbon additive:
1.1 ball iron carburizing agent generally uses graphitized high carbon and low sulfur products, the basic requirements are: C>98.5, S<0.05; its main material is graphite fossil oil coke, graphite electrode and so on. It also has the highest absorption rate and fastest absorption time in carburizing agents.
1.2 the main technical index of gray iron carburizing agent and nodular iron carburizing agent is the control of sulfur. The general requirement is S<0.5, and C content can be selected according to the cost control requirements 98.5 95 93 90. The absorption rate of this kind of carburizing agent is about 85%. Its main material is non graphite fossil oil coke, calcined coal and so on.
1.3 cast steel type of carburizing agent is more complex. In general, large steel mills choose a variety of carburizing agents according to different kinds of steel, but the general material is calcined coal, or Shi Moqiu, and it is also useful for natural graphite. The content varies from 75-99.
1.4 special carburizing agents are mainly used for brake block manufacturing, core wire manufacturing, and 0-0.5 or 0.5-1MM granularity.