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Improved method for producing pigment carbon black

A pigment carbon black, carbon black technology, applied in the direction of fibrous fillers, can solve the problems of unreachable, high dispersibility, etc., and achieve the effects of short oxidation time, high dispersibility, and high volatile content

Inactive Publication Date: 2013-06-26
上海焦化化工发展商社
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the development of technology, customers need carbon black with higher technical requirements, such as good blackness, high volatile content, low pH, high dispersibility and other requirements, but the carbon black in the existing technology often fails to meet the technical requirements

Method used

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  • Improved method for producing pigment carbon black
  • Improved method for producing pigment carbon black

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Embodiment 1: carbon black base sample is 100kg, and oxidation time is 20min, and hot air flow rate is 200m 3 / h, the constant temperature of the oxidation machine is controlled at 240°C.

Embodiment 2

[0026] Embodiment 2: carbon black base sample is 100kg, and oxidation time is 25min, and hot air flow rate is 250m 3 / h, the constant temperature of the oxidation machine is controlled at 260°C.

Embodiment 3

[0027] Embodiment 3: the carbon black base sample is 100kg, the oxidation time is 30min, and the hot air flow is 300m 3 / h, the constant temperature of the oxidation machine is controlled at 280°C.

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Abstract

The invention relates to an improved method for producing pigment carbon black. The method comprises the following steps: heating and dehydrating raw oil, conveying the heated raw oil to a vaporizing tank through a pipeline, heating the vaporizing tank so as to vaporize the raw oil, enabling preheated combustible gas to pass through a liquid level of the raw oil in the vaporizing tank so as to mix the oil vapor with the combustible gas, conveying the mixed gas to a carbon black reactor for incomplete combustion and cracking through an oil gas header pipe to produce carbon black, cooling the carbon black and then conveying the cooled carbon black into a pelletizer for pelletizing, performing magnetic separation on the pelletized carbon black, then conveying into an oxidizing machine for performing thermal oxidation treatment, conveying the thermal oxidation-treated carbon black into a cooling tank for cooling to normal temperature, and then conveying to a carbon black storage tank for packaging and storing. The water-soluble pigment carbon black produced by adopting the method is high in volatile matters and dispersity as well as color intensity and low in pH value. The application performances of the pigment carbon black on oil ink, leather, coating, paint and the like can be greatly improved.

Description

technical field [0001] The invention belongs to the field of chemical industry, in particular to a pigment carbon black used in the fields of ink, leather, paint and paint, in particular to an improved method for producing pigment carbon black. Background technique [0002] Pigment carbon black is a high-performance chemical raw material with good blackness, stable hue and uniform dispersion. With the development of technology, customers need carbon black with higher technical requirements, such as good blackness, high volatile content, low pH, high dispersibility and other requirements, but the carbon black in the prior art often fails to meet the technical requirements. Contents of the invention [0003] In order to solve the above-mentioned technical problems existing in the prior art, the present invention provides an improved method for producing pigment carbon black, which is a method for improving the dispersibility of pigment carbon black, volatile content index, a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09C1/56
Inventor 周永定陈容郭驷骏朱治文
Owner 上海焦化化工发展商社
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