Preparation method of nano high-purity carbon

A nano-carbon particle, high-purity technology, applied in the direction of nano-carbon, chemical instruments and methods, inorganic chemistry, etc., can solve the problems of low conversion rate and low purity of carbon black, and achieve simple equipment, high purity, and low energy consumption Effect

Active Publication Date: 2022-04-29
ZHUZHOU KENENG NEW MATERIAL CO LTD
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, the carbon black obtained by methane cracking has the problems of low purity and low conversion rate.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Preparation method of nano high-purity carbon
  • Preparation method of nano high-purity carbon

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Nitrogen gas is fed into the microwave plasma to form a plasma flame, the microwave plasma power is 120KW, and the nitrogen purity is 99%. Send methane into the plasma flame, and the feeding location is 5.2cm away from the root of the plasma flame. The volume ratio of methane and nitrogen is 5%, and the flow rate of methane and nitrogen is 240L / min. Methane is cracked into carbon nanoparticles in the plasma and collected by an electrostatic precipitator. The effect data of embodiment 1 is shown in table 1.

Embodiment 2

[0038] Nitrogen gas is fed into the microwave plasma to form a plasma flame, the microwave plasma power is 120KW, and the nitrogen purity is 99%. Send methane into the plasma flame, and the feeding location is 5.2cm away from the root of the plasma flame. The volume ratio of methane and nitrogen is 10%, and the flow rate of methane and nitrogen is 360L / min. Methane is cracked into carbon nanoparticles in the plasma and collected by an electrostatic precipitator. The effect data of embodiment 2 is shown in table 1.

Embodiment 3

[0040] Nitrogen gas is fed into the microwave plasma to form a plasma flame, the microwave plasma power is 120KW, and the nitrogen purity is 99%. Send methane into the plasma flame, and the feeding location is 5.2cm away from the root of the plasma flame. The volume ratio of methane and nitrogen is 5%, and the flow rate of methane and nitrogen is 360L / min. Methane is cracked into carbon nanoparticles in the plasma and collected by an electrostatic precipitator. The effect data of embodiment 3 is shown in table 1.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
poweraaaaaaaaaa
Login to view more

Abstract

The invention discloses a preparation method of nano high-purity carbon, which comprises the following steps: introducing nitrogen into a reaction cavity of a microwave plasma reactor to form a plasma flame, then introducing methane into the reaction cavity, and controlling a methane outlet to be 4-6cm away from the root of the plasma flame; and splitting the methane to form the nano carbon particles. According to the preparation method, a microwave plasma device is adopted, nitrogen is used as background gas, plasma flame is formed, and the distance between a methane gas outlet and the root of the plasma flame is strictly controlled to be 4-6 cm. The preparation method is simple and controllable, the conversion rate of methane reaches up to 93% or above, and the purity of nanocarbon is greater than 99.9%.

Description

technical field [0001] The invention relates to a method for preparing nanometer high-purity carbon, which belongs to the technical field of carbon black preparation. Background technique [0002] High-purity graphite refers to graphite with a carbon content >99.99%. It is widely used in advanced refractory materials and coatings in the metallurgical industry, stabilizers for pyrotechnic materials in the military industry, pencil leads in light industry, carbon brushes in the electrical industry, electrodes in the battery industry, Fertilizer industry catalyst additives, etc. [0003] High thermal conductivity nanoscale carbon powder is a kind of artificially synthesized high-purity graphite. Compared with natural high-purity graphite, it has higher purity, smaller particle size, and thickness in the nanoscale range, but its radial width can reach several From one to tens of microns, it has a large shape ratio, and maintains the original planar carbon six-membered ring c...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): C01B32/15C01B3/24
CPCC01B32/15C01B3/24C01B2203/1241
Inventor 赵科湘陈飞
Owner ZHUZHOU KENENG NEW MATERIAL CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap