Low-themogenesis super-wear-resisting carbon black and production technology thereof

A super wear-resistant carbon black and production process technology, applied in the direction of fibrous fillers, etc., can solve the problems of unfavorable vulcanized rubber heat generation performance, narrow distribution, etc., to achieve good quality carbon black products, super wear resistance, and significant economical benefit effect

Inactive Publication Date: 2013-11-27
LONGXING CHEMICAL STOCK CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Potassium carbonate, as an additive for carbon black production, can affect the shape of carbon black aggregates to a certain extent under the premise that the process conditions are determined, making the aggregates smaller and narrowly distributed, but it is not conducive to improving the heat generation performance of vulcanized rubber

Method used

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  • Low-themogenesis super-wear-resisting carbon black and production technology thereof

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Effect test

Embodiment 1

[0029] Embodiment 1: A super wear-resistant carbon black with high structure and low heat generation, which uses a mixture of anthracene oil and coal tar with a weight ratio of 8.5:1.5 as raw material oil, natural gas as fuel, no additives, and super wear-resistant carbon black It is prepared by the production process of grinding furnace and black furnace method; the raw material oil processing capacity ranges from 4000 to 4300kg / h. The water content of various oil products in the raw oil must be less than 2%, the density should be between 1.09-1.21g / ml, and the oil yield should not be less than 50%.

Embodiment 2

[0030] Embodiment 2: produce the super wear-resistant carbon black of the high structure low heat generation described in embodiment 1 with super wear-resistant furnace black furnace method, the concrete steps of production technology are as follows:

[0031] (1) The air compressed to 170Kpa is preheated to 750°C by the air preheater, and sent to the air distribution room of the reaction furnace through the hot air pipeline;

[0032] (2) Send the fuel into the combustion chamber of the reaction furnace, mix and burn with the hot air sent from the air distribution chamber above, and control the temperature at 1918°C. After the raw oil is preheated to 200°C by the raw oil preheater, it is sprayed into the throat section of the reaction furnace, atomized and sheared, and cracked for 10 milliseconds in the reaction section of the reaction furnace (the temperature of the reaction section is 1650 ℃), producing carbon black smoke;

[0033] (3) The carbon black flue gas is quenched o...

Embodiment 3

[0036] Embodiment 3: A super wear-resistant carbon black with high structure and low heat generation, which uses a mixture of anthracene oil and coal tar with a weight ratio of 9:1 as raw material oil, natural gas as fuel, no additives, and super-resistant carbon black It is prepared by the production process of grinding furnace and black furnace method; the processing capacity of raw material oil ranges from 3900 to 4200kg / h. The water content of various oil products in the raw oil must be less than 2%, the density should be between 1.09-1.21g / ml, and the oil yield should not be less than 50%.

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Abstract

The invention provides low-themogenesis super-wear-resisting carbon black and a production technology thereof. According to the technical scheme, the production technology is characterized in that incomplete cracking reaction happens in a reaction furnace so as to generate carbon black exhaust gas by using anthracene oil or a mixture of anthracene oil and coal tar as raw oil and natural gas as fuel without addition of an additive, and the generated carbon black exhaust gas is subjected to post-treatment so as to obtain carbon black particles. The production technology has the most remarkable advantages that the natural gas is used as the fuel, the coal tar and the anthracene oil are mixed in appropriate proportions so as to obtain the raw oil, the adopted raw oil is reasonable in structure, and the carbon black product has relatively good quality and relatively high structure and is extremely small in particle sizes and narrowly distributed, so that vulcanized rubber of the carbon black has super-strong wear-resisting property; heat generated by the vulcanized rubber is relatively low. The powdery carbon black is produced by a micrometer pulverizer, a pelletizer and a drying machine. The production technology is mature and suitable for industrial production and has obvious economic benefits.

Description

technical field [0001] The invention relates to a super wear-resistant carbon black with high structure and low heat generation and its production process. Background technique [0002] Carbon black is an amorphous carbon produced by incomplete combustion and cracking of many hydrocarbons that exist in solid, liquid or gaseous states at high temperatures. The specific surface area of ​​carbon black is very wide, because of different production methods, the physical and chemical properties of carbon black also vary greatly. For example, N121 carbon black currently included in the ASTM standard has the same reinforcement and dispersion properties as N220 carbon black, and its wear resistance is better than N220, but the heat generation of its vulcanizate is higher than that of N110, N220 and other super wear-resistant furnace blacks. The reinforcement, dispersion and wear resistance of N121 products are all outstanding among super wear-resistant carbon blacks. The biggest di...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09C1/50
Inventor 徐刚马宝亮刘江红李延波李岗领
Owner LONGXING CHEMICAL STOCK CO LTD
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