Raw materials of graphitized petroleum coke carburizer

The purpose of calcining petroleum coke is to remove sulfur, water and volatiles of petroleum coke carburizer. Raw petroleum coke can be calcined at 1200 ~ 1350 ℃ to form pure carbon. One of the major customers of calcined petroleum coke is aluminum company, 70% of which is used in the production of anodic oxidation of recycled bauxite. About 6% of the calcined petroleum coke produced in the United States is used as pig iron carburizer. Graphite petroleum coke can be added into molten iron. However, it is not necessary to add more than 0.2% in the middle and later stages to prevent the high purity graphite from being too thick. The products with high cost performance and low nitrogen content must be used in the application of carburizer. If the Ti content in the iron is low, it is unlikely that a lot of nitrogen will be combined in the iron. At this time, many blowholes will be caused because of the unclean removal of N2. A good carburizer should contain 95% ~ 98% high purity graphite carbon and less than 0.5% s. 500 ~ 4000ppm of N are inferior carburizers. In a word, the application of carbon carbon composites and carburizers in pig iron has their own advantages and disadvantages, which need careful selection and reasonable use to achieve the expected practical effect. Graphitized petroleum coke carburizing agent is produced and processed after petroleum coke is fired and purified, and its appearance is round or polygonal. It is characterized by high carbon steel, low sulfur and low ash. It is not only an ideal carbon material, but also a reflection chemical intermediate in metallurgical industry, mechanical equipment, power engineering and other fields, and has been widely used. Calcined coke manufacturer

Petroleum coke carburizer

The carburizing agent is produced and processed after petroleum coke is burned and purified, and its shape is round or rhombic. It is characterized by high carbon steel, low sulfur and low ash. It is not only an ideal carbon material, but also a reflection chemical intermediate in metallurgical industry, mechanical equipment, power engineering and other fields, and has been widely used. Graphitized petroleum coke carburizer is made from calcined petroleum coke. As an excellent carbon preservative and intermediate nuclear reactor, it is used in metallurgical industry, organic chemistry, mechanical equipment, power engineering and other fields. It can be used in iron and steel enterprises. Fibrous petroleum coke is produced by delayed coking unit with high content of aliphatic hydrocarbon and low content of residue. This kind of coke has fibrous structure which is easy to crack, sometimes called high-purity graphite coke, which is used to produce graphite electrode after calcination. Granular petroleum coke is a kind of hard particles, which is obtained from high sulfur and limonene content raw materials by delayed coking process. The key is natural materials. The flowing petroleum coke obtained by continuous coking process in fluidized bed has fine particle size, non-specific structure, high sulfur content and low volatile.

Carburizing agent carburizing agent for steelmaking and cast iron, as well as other additive materials, such as brake block additive, are also used as friction materials. The carburizing agent belongs to the carburizing agent of raw materials for steelmaking and ironmaking. High quality carburizer is an indispensable additive for producing high quality steel. There are many kinds of raw materials and different production processes for carburizing agents. It is not said in the market that graphite is formed by pressing. This production method requires too much binder for forming, and the carbon content generally can not meet the requirements of high-quality carburizer. Because the pressed graphite is solid and has no porous structure, its absorptivity and absorptivity are not as good as the carburizer formed by calcination and calcination. Carburizing agent generally refers to the carburizing agent after graphitization. At high temperature, the arrangement of carbon atoms presents the micro morphology of graphite, so it is called graphitization. Graphitization can reduce the carbon content, increase the carbon content and reduce the sulfur content in the carburizer.

Characteristics of carburizer:

(1) The composition of carburizer is pure: high carbon steel, low sulfur, micro nitrogen, less harmful residue.

(2) The product features are stable, the actual effect of carbon increase is stable, the adsorption effect is very good, the actual effect of temperature increase is significant, and there is no slag return.

(3) Physical shape: clean appearance, no impurities, porous material, fast digestibility, high digestibility.

(4) External economic brand image: grain size and high quality, which can reasonably improve the famous brand and characteristics of castings.

There are many types of carburizers. Manufacturers of carburizers find that what they attach great importance to is to choose the right one according to their own production process and characteristics of manufactured goods. Too high or too low fixed carbon will damage a lot of economic development costs. Therefore, we can only choose suitable carburizer to give full play to it.