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Preparation method of coal series needle shaped coke

A needle coke, coal-based technology, used in coke ovens, tar pitch/petroleum pitch/natural pitch processing, coking carbon-containing materials, etc., can solve the problems of low raw material utilization rate and high production cost, and achieve good product quality. , the effect of increased aspect ratio and low temperature

Inactive Publication Date: 2007-02-14
武建国
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AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the technical difficulties of low raw material utilization rate and high production cost existing in the existing production method and to provide a preparation method of coal-based needle coke with high raw material utilization rate, low production cost and good product quality

Method used

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  • Preparation method of coal series needle shaped coke

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Embodiment Construction

[0012] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.

[0013] As shown in the drawings, the preparation method of coal-based needle coke in this example uses coal tar pitch, coal tar, and heavy fractions of coal tar as raw materials, and is prepared through preparation, purification, polycondensation, coking, and calcination to produce coal-based needle coke. State coke, of which:

[0014] (1) Preparation: first, coal tar pitch, coal tar, coal tar heavy fraction raw materials and auxiliary agents anthracene oil and medium oil are added to the mixed solvent tank 1 for preparation;

[0015] (2) Purify: the raw material after modulation is sent into heating in tubular heating furnace 3 by raw material pump 2, then enters in purifying device 4, makes the raw material after heating remove quinoline insoluble matter through settling, centrifugation, filtration, makes quinoline Phenyl insoluble matter <...

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Abstract

The invention relates to a coal measure needle coke preparing method, belonging to a producing method for coking chemical industry, adopting coal pitch, coal tar, and heavy fractions of coal tar as raw materials, mixing, purifying, condensing, coking and calcining to make the coal measure needle coke, where the concrete steps comprise: (1) mixing; (2) purifying: heating the mixed raw materials by tubular furnace and eliminating quinoline insoluble substance by purifier through sedimentation, configuration and filtration; (3) condensing; (4) coking; and (5) calcining, making the coal measure needle coke. And it has advantages of high utilization ratio of raw materials, low production cost and good product quality.

Description

technical field [0001] The invention relates to a preparation method of coal-based needle coke, which belongs to a coking chemical production method. Background technique [0002] The key to producing needle coke from coal tar pitch or compound pitch is the purification of raw materials. In order to purify raw materials, in the current production method, the method of vacuum flash evaporation must be used to process raw materials, such as patent No. ZL86100675, ZL00125962.8 , ZL00115132.0 disclosed production methods, all belong to the production method of purifying raw materials by vacuum flash evaporation that is to remove quinoline insolubles. Although the vacuum flash method can obtain better purified raw materials, the production cost of needle coke is increased due to the low utilization rate of the raw materials. Contents of the invention [0003] The purpose of the present invention is to solve the technical difficulties of low raw material utilization rate and hi...

Claims

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Application Information

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IPC IPC(8): C10B55/00C10C3/00
Inventor 武建国
Owner 武建国
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