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Preparation method of novel carbon black for rubbers

A technology of carbon black and rubber, applied in fibrous fillers, dyeing physical treatment, dyeing low-molecular organic compound treatment, etc., can solve problems that do not meet energy saving, emission reduction and low carbon, large consumption of raw materials, environmental pollution, etc., and achieve Ease of market acceptance and mass promotion and application, low cost and high yield

Active Publication Date: 2014-04-16
芮立
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the process of preparing carbon black by the above-mentioned process, the consumption of raw materials is very large. Each ton of carbon black product consumes about 2 tons of raw material oil or 15,000 to 40,000 cubic meters of natural gas. 3 , because the cost of raw materials rises with the adjustment of oil prices and gradually rises, the cost is very high. In addition, a large amount of CO will be generated during the production process 2 The gas is discharged into the atmosphere, causing serious environmental pollution, which does not conform to the current trend of energy saving, emission reduction and low carbon in the development of the global economy

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A preparation method of carbon black for rubber, comprising the following steps:

[0018] (1) Select raw coal: Taixi coal is selected as raw coal, and its carbon content has been tested to be 97.2%;

[0019] (2) Multi-stage crushing: Impact crushing, high-speed shear mill crushing, high-speed grinding crushing, high-pressure or ultra-high pressure static crushing are used for four-stage crushing, and the average particle size of the final crushed material is fine carbon particles with an average particle size of less than 80nm. Among them, the impact crushing adopts the crocodile crusher, which performs primary crushing on the raw coal, and the average particle size of the crushed raw coal is 40 mesh; Finally, the average particle size after crushing is 960 mesh; the high-speed grinding and crushing adopts branch type stirring mill for crushing, and after secondary cycle crushing, the average particle size is 415nm; while the high-pressure or ultra-high pressure static ...

Embodiment 2

[0023] A preparation method of carbon black for rubber, comprising the following steps:

[0024] (1) Selection of raw coal: Taixi coal is selected as raw coal, and its carbon content has been tested to be 97.6%;

[0025] (2) Multi-stage crushing: Impact crushing, high-speed shear mill crushing, high-speed grinding crushing, high-pressure or ultra-high pressure static crushing are used for four-stage crushing, and the average particle size of the final crushed material is fine carbon particles with an average particle size of less than 80nm. Among them, the impact crushing adopts the crocodile crusher, which performs primary crushing on the raw coal, and the average particle size of the crushed raw coal is 155 mesh; Finally, the average particle size after crushing is 980 mesh; the high-speed grinding and crushing is crushed by a branch-type stirring mill, and after secondary cycle crushing, the average particle size is 450nm; while the high-pressure or ultra-high-pressure stat...

Embodiment 3

[0029] A preparation method of carbon black for rubber, comprising the following steps:

[0030] (1) Selection of raw coal: Taixi coal is selected as raw coal, and its carbon content has been tested to be 97.3%;

[0031] (2) Multi-stage crushing: Impact crushing, high-speed shear mill crushing, high-speed grinding crushing, high-pressure or ultra-high pressure static crushing are used for four-stage crushing, and the average particle size of the final crushed material is fine carbon particles with an average particle size of less than 80nm. Among them, the impact crushing adopts the crocodile crusher, which performs primary crushing on the raw coal, and the average particle size of the crushed raw coal is 180 mesh; Finally, the average particle size after crushing is 1000 mesh; the high-speed grinding and crushing adopts branch type stirring mill for crushing, and after secondary cycle crushing, the average particle size is 480nm; while the high-pressure or ultra-high pressure...

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Abstract

The invention relates to a preparation method of novel carbon black for rubbers. The method of the invention is characterized by comprising the following steps of: (1) choosing raw coal; (2) carrying out multistage crushing; (3) subjecting the obtained fine carbon particles to a surface activating treatment; (4) conducting granulation, drying and impurity elimination, thus obtaining the product. By employing the measures of crushing, surface modification and the like, the method of the invention abandons the traditional combustion method and has no discharge of "three wastes" like the exhaust gas of carbon dioxide in the whole process, thus meeting the environmental requirements. In addition, only with the costs of raw coal, labor wages, water and electricity, etc., the method provided in the invention has a high yield close to the theoretical value and is convenient for market acception and mass promotion and application.

Description

technical field [0001] The invention relates to a method for preparing carbon black, in particular to a method for preparing carbon black for rubber, and belongs to the technical field of chemical production methods. Background technique [0002] With the rapid development of my country's automobile manufacturing industry and the substantial increase in the use of automobiles, my country has entered the world's largest automobile manufacturing and consumption country, and has also become a major manufacturer of rubber tires. As an important supporting material for the development of rubber tires, carbon Black, its demand is also increasing, the traditional carbon black production method uses heavy oil and coal tar or petroleum ethylene tar and natural gas (acetylene gas is used in a small amount), in the process of its thermal cracking and incomplete combustion, collect its The product, after processing, forms industrial carbon black. [0003] In the process of preparing carb...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09C1/48C09C3/04C09C3/08C09C3/12C08L7/00C08L23/16C08L9/06C08L9/00C08K9/06C08K9/04C08K3/04
Inventor 芮立
Owner 芮立