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Production method for high-purity carbon black

A technology of pure carbon black and production method, applied in fibrous fillers and other directions, can solve the problem of low purity of carbon black, and achieve the effects of high purity, resource saving and low sulfur content

Active Publication Date: 2019-02-12
山东联科新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to overcome the problem of low purity in existing carbon black production, and to provide a production method for producing high-purity carbon black

Method used

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  • Production method for high-purity carbon black

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Embodiment 1

[0036] Adjust the temperature of the reaction furnace to 1900°C, filter the air and heat it up to 900°C, then pass the preheated air into the reaction furnace and mix it with natural gas for combustion, heat the refined raw material oil to 280°C and spray it through the gun head The holes are sprayed like inside the furnace, at this time the mixture of raw oil and additives is in the form of mist, and the refined raw oil is cracked at high temperature. Among them, the flow rate of refined raw material oil is 4500kg / h. Additive additive in the reaction furnace, its concentration is 6kg / m 3 , the flow rate is 20kg / h, to adjust the structure of carbon black, so that the primary structure of carbon black is 86*10 -5 m 3 / kg.

[0037] The high-temperature flue gas carrying carbon black obtained from the reaction furnace passes through the air preheater for the first heat exchange, and the air injected into the combustion chamber is preheated in the air preheater; and then in the...

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Abstract

The invention discloses a production method for a high-purity carbon black, which comprises the following steps: (Step 1) anthracene oil with a moisture content less than or equal to 0.2 percent and ethylene tar are sufficiently mixed according to the proportion of 8:2, and the mixed material is sequentially injected into a liquid pulverizer and an oil-residue separator and refined, so that refined material oil is obtained; (Step 2) natural gas and air are respectively filtered and then injected into the combustion chamber of a reaction furnace, wherein, after being filtered, the air is heatedto 900 DEG C, so that the temperature of the reaction furnace reaches 1800 DEG C to 2200 DEG C, wherein the refined material oil is heated to 250 DEG C to 300 DEG C, and the refined material oil andadditive are injected into a carbon black reactor of the reaction furnace to rapidly react for pyrolysis, so that the powdery carbon black is produced. The carbon black product produced by the invention has high purity and low ash, heavy metal, polycyclic aromatic hydrocarbon and sulfur contents, and can be highly dispersed to be completely combined with ingredients, the applicability, wear resistance, extrusion property, crack resistance, insulating property and conductivity of the product are increased, and the life of the product is greatly prolonged.

Description

technical field [0001] The present invention and the field of carbon black production particularly relate to a production method of high-purity carbon black. Background technique [0002] Carbon black for rubber products is widely used in rubber products such as automobile sealing strips, door and window sealing strips, and shock-absorbing molded parts. With the development of technology, especially the development of the automobile industry, some high-end customers have put forward higher requirements for carbon black for rubber products, requiring good product stability, good fluidity after mixing carbon black with rubber, and smooth extrusion surface. Defects, extrusion sealing strip die expansion is small. At present, some high-end products are still dominated by foreign carbon black. Compared with foreign countries, there is still a certain gap in performance, especially stability, of domestic products. [0003] Domestic carbon black is mainly used in tires, rubber pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09C1/50C09C1/56
CPCC09C1/50C09C1/56
Inventor 张友伟秦国明陈有根宫乐涛
Owner 山东联科新材料有限公司
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