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Refined carbon black and preparation method thereof

A carbon black and raw material technology, applied in fibrous fillers and other directions, can solve the problem of difficult to remove organic substances, and achieve the effects of convenient operation, simple equipment structure and large industrial value.

Inactive Publication Date: 2014-08-13
SHANGHAI YIPIN PIGMENTS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This invention can reduce the impurity contained in the carbon black - iron and other metal components, but it is difficult to remove the organic substances

Method used

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  • Refined carbon black and preparation method thereof
  • Refined carbon black and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] use figure 1 with figure 2 The equipment for preparing the refined carbon black.

[0041] Device parameters:

[0042] The diameter D0 of the throat 302 is 60% of the maximum diameter D2 of the expander 303, and the diameter D0 of the throat 302 is 30% of the maximum diameter D1 of the reducer 301;

[0043] The number of jet tubes 3 is 20, which are evenly distributed in the cylinder body 1;

[0044] Preparation:

[0045] Put the raw carbon black and hydrogen peroxide with a weight concentration of 30% into the reactor, then start the agitator and the circulation pump. After the circulation pump draws out the mixture of the raw carbon black and hydrogen peroxide from the bottom of the reactor, from the material inlet on the upper part of the cylinder, Re-enter the reactor through the jet tube;

[0046] Weight concentration is that the weight consumption of 30% hydrogen peroxide is 5 times of raw material carbon black;

[0047] The material velocity at the expandin...

Embodiment 2

[0056] use figure 1 with figure 2 The equipment for preparing the refined carbon black.

[0057] Device parameters:

[0058] The diameter D0 of the throat 302 is 40% of the maximum diameter D2 of the expander 303, and the diameter D0 of the throat 302 is 20% of the maximum diameter D1 of the reducer 301;

[0059] The number of jet tubes 3 is 4, which are evenly distributed in the cylinder body 1;

[0060] Preparation:

[0061] Put the raw carbon black and hydrogen peroxide with a weight concentration of 30% into the reactor, then start the agitator and the circulation pump. After the circulation pump draws out the mixture of the raw carbon black and hydrogen peroxide from the bottom of the reactor, from the material inlet on the upper part of the cylinder, Re-enter the reactor through the jet tube;

[0062] Weight concentration is that the weight consumption of 30% hydrogen peroxide is 3 times of raw material carbon black;

[0063] The material velocity at the expanding...

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PUM

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Abstract

The invention discloses a refined carbon black and a preparation method and a device thereof. The refined carbon black is characterized in that: by mass, the total content of polycyclic aromatic hydrocarbons is 0.005 to 0.3 ppm; wherein the content of benzo (a) pyrene is equal or less than 0.005 ppm, and the content of dibenz(a,h) anthracene is equal or less than 0.005 ppm. The refined carbon black can meet the application needs of the special fields such as medicine, color cosmetics and other fields, and has the advantages of simple equipment structure and convenient operation and great industrial value.

Description

technical field [0001] The invention relates to a high-purity carbon black and a preparation method thereof. Background technique [0002] Carbon black is a black powdery substance formed by incomplete combustion or pyrolysis of hydrocarbons in the gas phase under strictly controlled process conditions. Its main constituent is elemental carbon. Carbon black has a wide range of uses, and is usually divided into two categories according to different uses, namely: pigment carbon black and rubber carbon black. Pigment carbon black can be divided into three categories: high pigment carbon black, medium pigment carbon black and low pigment carbon black. Pigment carbon black has different applications according to different application systems. However, as a pigment, pigment carbon black is widely used in colorants, plastic masterbatches, inks, coatings and paints, and is also widely used in black cosmetics such as mascara. [0003] Due to the incomplete cracking of hydrocarbon...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09C1/56C09C1/48
Inventor 王丹英尚汴卿解培轶
Owner SHANGHAI YIPIN PIGMENTS CO LTD