Production method of high-purity conductive carbon black

Abstract

The invention provides a production method of high-purity conductive carbon black. According to the method, anthracene oil is taken as raw oil for producing conductive carbon black, when the anthracene oil is subjected to heating distillation, the quantity of fractional distillation at 360 DEG C is larger than 68%, and the quantity of fractional distillation at temperature lower than 300 DEG C issmaller than 10%. A carbon black generation reaction is executed in a multi-stage reaction furnace under the condition that the temperature of a reaction stage of the reaction furnace is kept at 1700-1760 DEG C; pure soft water is taken as process quenched water to terminate the carbon black cracking reaction and serves as secondary quenched water, and impurity-free high-purity powdery carbon black is obtained; the pure soft water as granulation water is mixed with an adhesive in a static mixer, the impurity-free high-purity powdery carbon black is mixed for granulation with the granulation water and the adhesive in a granulator, a small amount of diesel oil is added to serve as a granulation aid in the granulation process, and high-purity conductive carbon black particles are obtained. The particles produced with the method have high dispersity, low resistance, stable structural performance and high purity, are uniform and are conveniently produced and processed by a customer.

Description

technical field [0001] The invention relates to a production method of carbon black, in particular to a production method of high-purity conductive carbon black. Background technique [0002] At present, domestic electronic components have been localized, but most of the conductive carbon black used in rubber, fuel tanks, pipes, cables, etc. in the market still relies on imports and is expensive. In recent years, the domestic demand for conductive carbon black has gradually increased, and the quality requirements have also increased. With the intensification of market competition, the reduction of production costs will effectively enhance the competitiveness of enterprises. Carbon black production enterprises also need to adapt to the development of the economic situation. The production process of traditional carbon black is becoming more and more mature, and the number of production enterprises has increased, and the profits of enterprises have declined. In order to enhanc...

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Problems solved by technology

[0003] The present invention will solve the following technical problems aimed at the above-mentioned defects in the prior art: the production raw materials are not thoroughly filtered and purified and impurities are easily generated in the production process; the design of the carbon black reaction furnace cannot meet the production conditions of high-purity and high-performance conductive carbon black; There are few technical problems in the process of magnetic cleaning (magnetic separation) and unreasonable setting range of process parameters.

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