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A kind of production method of chemically modified carbon black

A production method and chemical method technology, applied in chemical instruments and methods, inorganic pigment treatment, fibrous fillers, etc., can solve the problems of difficult mixing modification process and high production cost, and achieve significant economic benefits and reduce production costs.

Active Publication Date: 2016-08-24
烁元新材料(东营)股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims at the current market demand for high-performance carbon black, but the technical problems of adding a mixed modification process and high production cost. By improving the carbon black production process and formula, the production and modification process can be completed at one time, so as to obtain A kind of high-performance chemical method modified carbon black

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0019] Using tar as raw material and air as a combustion aid, the production of carbon black is currently the main production method in China. The carbon black furnace is composed of two parts: a combustion chamber and a reaction center arranged in parallel. The detail connecting the combustion chamber and the reaction center is called the throat. A silicon tetrachloride supply pipe is installed at the connection between the combustion chamber of the carbon black furnace and the reaction center, and silicon tetrachloride is introduced into the carbon black output at a weight ratio of 5% during production. The temperature of the reaction chamber is 1600 ° C, and other process parameters Basically remain unchanged, the chemical modification of carbon black can be completed.

Embodiment 2

[0021] Using tar as raw material and air as a combustion aid, the production of carbon black is currently the main production method in China. The carbon black furnace is composed of two parts: a combustion chamber and a reaction center arranged in parallel. The detail connecting the combustion chamber and the reaction center is called the throat. A silicon tetrachloride supply pipe is installed at the connection between the combustion chamber of the carbon black furnace and the reaction center. During production, silicon tetrachloride is introduced at a weight ratio of 10% of the carbon black output. The temperature of the reaction chamber is 1800 ° C. Other process parameters Basically remain unchanged, the chemical modification of carbon black can be completed.

Embodiment 3

[0023] Using tar as raw material and air as a combustion aid, the production of carbon black is currently the main production method in China. The carbon black furnace is composed of two parts: a combustion chamber and a reaction center arranged in parallel. The detail connecting the combustion chamber and the reaction center is called the throat. A silicon tetrachloride supply pipe is installed at the connection between the combustion chamber of the carbon black furnace and the reaction center. During production, silicon tetrachloride is introduced at a weight ratio of 8% of the carbon black output. The temperature of the reaction chamber is 1700 ° C. Other process parameters Basically remain unchanged, the chemical modification of carbon black can be completed.

[0024] The modification principle is as follows: the silicon tetrachloride introduced into the reaction chamber is reduced to elemental silicon and hydrogen chloride under the condition of high temperature of 1600-18...

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Abstract

The invention relates to a production method of chemically modified carbon black. The production of carbon black with tar as a raw material and air as a combustion enhancer is the main production method in China at present. Four cylinders are installed in the combustion chamber of the carbon black furnace and the throat of the reaction center. The silicon chloride supply pipe is introduced into silicon tetrachloride at a weight ratio of 5-10% of the carbon black output during production, and the temperature of the reaction chamber is 1600-1800°C, which can complete the chemical modification of carbon black. Compared with unmodified carbon black, the anti-corrosion resistance of modified carbon black is 15-30% higher; the yield is 0.8-4% higher than that of unmodified carbon black.

Description

technical field [0001] The invention relates to a production method of modified carbon black, in particular to a production method of chemically modified carbon black. Background technique [0002] Carbon black is mainly used as a filling material for rubber products. The chemical composition and performance of carbon black are directly related to the performance of rubber products. At present, the production of carbon black mainly uses ethylene tar and coal tar as raw materials, and air and oxygen are used as combustion aids. The raw material oil is cracked into nano-carbon in a reducing atmosphere at high temperature and collected. In order to improve the dispersibility and compatibility of carbon black, some methods of carbon black modification are disclosed, as the publication number is CN1781999A, the invention patent of nano-carbon black and its manufacturing method named as in-situ grafted organic compound, discloses Graft-modified carbon black is obtained by directl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09C1/56C09C1/50C09C3/06C08K9/02C08K3/04
Inventor 梁洪奎
Owner 烁元新材料(东营)股份有限公司
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