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Carbon black as well as preparation method and application thereof

A carbon black and oxidized carbon black technology, applied in electrical components, magnetic field/electric field shielding, fibrous fillers, etc., can solve problems such as difficulty in producing high-quality carbon black products, achieve high oil absorption value, improve porosity, and improve electrical conductivity performance effect

Active Publication Date: 2021-07-16
MAOMING ROUND STAR CARBON BLACK COMPANY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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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  • Carbon black as well as preparation method and application thereof
  • Carbon black as well as preparation method and application thereof
  • Carbon black as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047]In this example, a carbon black is prepared, and the processing flow is schematically figure 1 As shown, the specific process is:

[0048] S1: The combustion segment to the reactor is 60: 1 to add coal tar and air, coal tar and air in combustion segments in combustion segments;

[0049] S2: Add the raw oil to the reaction group of the reactor, and the reaction temperature is 1850 ° C to 1900 ° C, the pressure is 0.5 MPa, and the raw oil is cleaved, and when the aggregate is formed, the cooling water is sprayed at a speed of 5 kg / h. Cooling carbon black smoke, terminating carbon black reaction, while adding mass concentrations in cooling water to 1 kg / m 3 Potassium permanganate, catalyzes carbon black aggregate, and obtain carbon black flue gas in developed pore structure;

[0050] S3: Set the pressure of the wind to the wind to the wind to 700 MPa, and the carbon black flue gas produced by S2 is further cooled in the heat exchange device to about 260 ° C, and the carbon ...

Embodiment 2

[0054] In this example, a carbon black is prepared, and the processing flow is schematically figure 2 As shown, the specific process is:

[0055] S1: The combustion segment to the reactor is 65: 1 to the mass flow ratio of 65: 1 to the coal tar and air, coal tar and air in the combustion section;

[0056] S2: Add a raw oil to the reaction furnace reaction to the reaction furnace, and the reaction temperature is 1850 ° C to 1900 ° C, the pressure is 0.6 MPa, and the raw oil has a cleavage reaction and gradually forms a gas at a rate of 7 kg / h, and sprayed cooling water. Cooling carbon black smoke, terminating carbon black reaction, while adding mass concentrations in cooling water to 1.2kg / m 3 Dilute nitric acid, catalytically activate carbon black aggregate, and obtain carbon black flue gas in developed pore structure;

[0057] S3: Set the pressure of the wind feed pipe in the wind to 800 MPa, and the carbon black flue gas produced by S2 is further cooled in the heat exchange ...

Embodiment 3

[0061] In this example, a carbon black is prepared, and the processing flow is schematically image 3 As shown, the specific process is:

[0062] S1: The combustion segment to the reactor is 70: 1 to the mass flow ratio of 120 ° C, the coal tar and air, coal tar and air combust in the combustion section;

[0063] S2: Add the raw oil to the reaction furnace to the reaction furnace, and the reaction temperature is 1850 ° C to 1900 ° C, the pressure is 0.5 MPa, the raw oil is cleaved, and when the aggregate is formed, the cooling water is sprayed at a speed of 9 kg / h. , Cooling carbon black smoke, terminating carbon black reaction, while adding mass concentrations in cooling water to 1.5 kg / m 3 Iodine, catalytically activate carbon black aggregate, and obtain carbon black flue gas in developed pore structure;

[0064] S3: Set the pressure of the wind feed pipe in the wind to 900MPa, and the carbon black flue gas produced by S2 is further cooled to about 240 ° C in heat exchange eq...

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Abstract

The invention discloses carbon black as well as a preparation method and application thereof. According to the preparation method of the carbon black, the porosity of a carbon black product can be improved, and oxygen-containing functional groups on the surface of the carbon black product are reduced, so that the conductivity of the carbon black is improved. The prepared carbon black is high in specific surface area, large in oil absorption value, low in washing sieve residue, good in conductivity and very good in stability. A product with good conductivity can be obtained when the carbon black is applied to a conductive material.

Description

Technical field [0001] The present invention belongs to the production of carbon black, and is specifically related to carbon black and preparation methods and applications thereof. Background technique [0002] The conductive carbon black made by the oil furnace method has good conductivity and dispersibility, but is limited by the raw materials and production process, the product is low, and the demand for high-end conductive products cannot be met, and it is severely constrained in the development of the carbon black industry. At present, the carbon black enterprises are mainly adjusted by methods of carbon black parameters such as the purity optimization of carbon black raw materials, the structural improvement of the reaction segment, size and process parameter adjustment (granulated machine frequency changes). Its prior art is limited to the adjustment of the carbon black structure, and the conductivity has a small increase in the electrically conductive application field o...

Claims

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Application Information

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Patent Type & Authority Applications(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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