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A kind of preparation method of coumarone resin for high carbon residue carbon fiber

A technology of coumarone resin and carbon fiber, which is applied in the field of preparation of coumarone resin for carbon fiber with high carbon residue, can solve problems that are not conducive to carbon fiber processing, and achieve low toluene and quinoline insolubles, high carbon residue, and ash content small effect

Active Publication Date: 2022-05-10
FUSHUN QILONG CHEM
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Problems solved by technology

Not conducive to later carbon fiber processing

Method used

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  • A kind of preparation method of coumarone resin for high carbon residue carbon fiber
  • A kind of preparation method of coumarone resin for high carbon residue carbon fiber
  • A kind of preparation method of coumarone resin for high carbon residue carbon fiber

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preparation example Construction

[0019] A preparation method of coumarone resin for high carbon residue carbon fiber is characterized in that, it is carried out according to the following steps:

[0020] (1) Light components are removed from ethylene tar to obtain heavy tar, and the mass percentage of carbon residue in the heavy tar is 15-20%;

[0021] (2) Heavy tar is pyrolyzed in a pyrolysis furnace with a pyrolysis temperature of 400-430°C and a pyrolysis time of 60-180 s to obtain heavy oil after pyrolysis. The mass percentage of carbon residue in the heavy oil is 35% ~40%;

[0022] (3) Heavy oil is polymerized in a polymerization kettle, polymerized at 280-300°C for 5-8 hours, and the mass percentage of carbon residue in the obtained product is 45-50%;

[0023] (4) The polymerized product is subjected to falling film flash evaporation, concentrated and granulated to obtain coumarone resin.

[0024] The light component removal condition of ethylene tar in step (1) is concentration at 200-250°C under neg...

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Abstract

The invention relates to a preparation method of coumarone resin for high-carbon-residue carbon fiber. The light components are removed from ethylene tar to obtain heavy tar; the heavy tar is subjected to high-temperature cracking in a cracking furnace; and the heavy oil is polymerized in a polymerization kettle , polymerized at 280‑300°C for 4 to 7 hours; the product obtained from the polymerization was subjected to falling film flash evaporation, concentrated and granulated to obtain coumarone resin. The coumarone resin produced by the invention has high utilization rate of recombinant composition, high carbon residue in the resin, basically unchanged content of toluene and quinoline insolubles, and small ash content, and is suitable as a raw material for processing carbon fibers.

Description

technical field [0001] The invention belongs to the technical field of carbon materials, in particular to a preparation method of coumarone resin for high carbon residue carbon fibers. Background technique [0002] At present, carbon fiber raw materials mainly come from coal tar and petroleum heavy coke. Coal tar has a very high sulfur content and a large inorganic ash content; petroleum heavy coke has a large ash content and high quinoline and toluene insolubles. It is not conducive to the later carbon fiber processing. In order to facilitate the production of carbon fiber, the required resin needs to meet the following requirements: high utilization of recombinant components, high carbon residue in the resin, low toluene and quinoline insolubles, and low ash content. Contents of the invention [0003] The purpose of the present invention is to solve the above problems and provide a preparation method of coumarone resin for carbon fiber with high carbon residue. The prod...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F244/00D01F9/21
CPCC08F244/00D01F9/21
Inventor 张宇尹维宇于得水
Owner FUSHUN QILONG CHEM
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