A kind of carbon black and its preparation method and application

A technology of carbon black and oxidized carbon black, which is applied in the direction of fibrous fillers, shielding materials, electrical components, etc., can solve problems such as difficulty in producing high-quality carbon black products, and achieve high oil absorption value, improved electrical conductivity, and good stability Effect

Active Publication Date: 2022-04-19
MAOMING ROUND STAR CARBON BLACK COMPANY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Its existing technology has limited adjustments to the structure of carbon black, and the conductivity has been slightly improved. It can be used in relatively low-end conductive applications such as antistatic, but it is difficult to produce high-quality carbon black products that are suitable for high conductivity requirements.

Method used

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  • A kind of carbon black and its preparation method and application
  • A kind of carbon black and its preparation method and application
  • A kind of carbon black and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047]The present embodiment has prepared a kind of carbon black, and its process schematic diagram is as follows figure 1 As shown, the specific process is:

[0048] S1: Add coal tar and air preheated to 100°C to the combustion section of the reaction furnace at a mass flow ratio of 60:1, and the coal tar and air are burned in the combustion section;

[0049] S2: Add raw material oil to the reaction section of the reaction furnace, set the reaction temperature to 1850°C to 1900°C, and the pressure to 0.5MPa. When the raw material oil undergoes cracking reaction and gradually forms aggregates, spray cooling water at a rate of 5kg / h , cool the carbon black flue gas, terminate the carbon black reaction, and add a mass concentration of 1kg / m in the cooling water at the same time 3 Potassium permanganate is used to catalyze and activate carbon black aggregates to obtain carbon black flue gas with developed pore structure;

[0050] S3: Set the pressure of the air delivery pipe in...

Embodiment 2

[0054] The present embodiment has prepared a kind of carbon black, and its process schematic diagram is as follows figure 2 As shown, the specific process is:

[0055] S1: Add coal tar and air preheated to 110°C to the combustion section of the reaction furnace at a mass flow ratio of 65:1, and the coal tar and air are burned in the combustion section;

[0056] S2: Add raw material oil to the reaction section of the reaction furnace, set the reaction temperature at 1850°C to 1900°C, and the pressure at 0.6MPa. When the raw oil undergoes cracking reaction and gradually forms aggregates, spray cooling water at a flow rate of 7kg / h , cool the carbon black flue gas, terminate the carbon black reaction, and add the mass concentration of 1.2kg / m in the cooling water at the same time 3 The dilute nitric acid is used to catalyze and activate carbon black aggregates to obtain carbon black flue gas with developed pore structure;

[0057] S3: Set the pressure of the air delivery pipe ...

Embodiment 3

[0061] The present embodiment has prepared a kind of carbon black, and its process schematic diagram is as follows image 3 As shown, the specific process is:

[0062] S1: Add coal tar and air preheated to 120°C to the combustion section of the reaction furnace at a mass flow ratio of 70:1, and the coal tar and air are burned in the combustion section;

[0063] S2: Add raw material oil to the reaction section of the reaction furnace, set the reaction temperature to 1850°C to 1900°C, and the pressure to 0.5MPa. When the raw material oil undergoes cracking reaction and gradually forms aggregates, spray cooling water at a flow rate of 9kg / h , cool the carbon black flue gas, terminate the carbon black reaction, and add a mass concentration of 1.5kg / m in the cooling water at the same time 3 Iodine, catalytic activation of carbon black aggregates, to obtain carbon black flue gas with well-developed pore structure;

[0064] S3: Set the pressure of the air delivery pipe in the air s...

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Abstract

The invention discloses a carbon black and a preparation method and application thereof. The preparation method of carbon black of the present invention can improve the porosity of the carbon black product and reduce the oxygen-containing functional groups on the surface thereof, thereby improving the electrical conductivity of the carbon black. The carbon black prepared by the invention has high specific surface area, large oil absorption value, low washing and sieving residue, good electrical conductivity and good stability. When applied to conductive materials, products with good electrical conductivity can be obtained.

Description

technical field [0001] The invention belongs to the technical field of carbon black production, and in particular relates to a carbon black and its preparation method and application. Background technique [0002] The conductive carbon black produced by the oil furnace method has good conductivity and dispersibility, but due to the limitation of raw materials and production process, the product has low purity and cannot meet the needs of high-end conductive products, which seriously restricts the development of the carbon black industry. At present, carbon black enterprises mainly adjust carbon black parameters by optimizing the purity of carbon black raw material oil, improving the structure of the reaction section, adjusting the size and process parameters (changing the frequency of the granulator). Its existing technology has limited adjustments to the structure of carbon black, and has a small increase in conductivity. It can be used in relatively low-end conductive appl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09C1/50C09C1/56H05K9/00
CPCC09C1/50C09C1/56H05K9/0081H05K9/0079
Inventor 景明辉余本祎李镇昌林浩晋黄颜
Owner MAOMING ROUND STAR CARBON BLACK COMPANY
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