JPS6433186A - Production of mesophase pitch - Google Patents
Production of mesophase pitchInfo
- Publication number
- JPS6433186A JPS6433186A JP62187749A JP18774987A JPS6433186A JP S6433186 A JPS6433186 A JP S6433186A JP 62187749 A JP62187749 A JP 62187749A JP 18774987 A JP18774987 A JP 18774987A JP S6433186 A JPS6433186 A JP S6433186A
- Authority
- JP
- Japan
- Prior art keywords
- pitch
- mesophase
- resin
- solvent
- soluble
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Carbon And Carbon Compounds (AREA)
- Working-Up Tar And Pitch (AREA)
- Inorganic Fibers (AREA)
Abstract
PURPOSE:To obtain the title pitch which can be softened and melted by heating and is suited for use as a raw material for a graphite fiber, by hydrogenating a beta-resin extracted from a coal tar pitch by solvent fractionation and treating the hydrogenation product so as to have a high-boiling point. CONSTITUTION:A coal tar pitch comprising a fraction obtd. by the distillation of a raw tar produced in coal dry distillation is fractionated with a solvent, thereby extracting a beta-resin which is insoluble in toluene, benzene, etc. but soluble in quinoline, pyridine, etc. Then, the resin is hydrogenated and subsequently treated in an inert atmosphere at 360-430 deg.C for 30-300min, so as to have a high-boiling point, thereby obtaining a mesophase pitch having a mesophase content of 80% or higher. Moreover, according to necessity, the pitch is pulverized, and solvent soluble components are removed using benzene or toluene. Thus, there is obtd. a mesophase pitch of 100% in mesophase content which is soluble in 100% quinoline.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62187749A JPH0733514B2 (en) | 1987-07-29 | 1987-07-29 | Method for producing mesophase pitch |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62187749A JPH0733514B2 (en) | 1987-07-29 | 1987-07-29 | Method for producing mesophase pitch |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6433186A true JPS6433186A (en) | 1989-02-03 |
JPH0733514B2 JPH0733514B2 (en) | 1995-04-12 |
Family
ID=16211529
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62187749A Expired - Lifetime JPH0733514B2 (en) | 1987-07-29 | 1987-07-29 | Method for producing mesophase pitch |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0733514B2 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH026624A (en) * | 1988-02-22 | 1990-01-10 | E I Du Pont De Nemours & Co | Carbon fiber well-balanced in ultrahigh modulus and high tensile force |
WO2007049731A1 (en) | 2005-10-28 | 2007-05-03 | Mitsubishi Tanabe Pharma Corporation | Novel cell membrane-permeable peptide |
EP2363446A3 (en) * | 2001-05-11 | 2013-05-15 | Koppers Delaware, Inc. | Mesophase pitch and preparation from quinoline insoluble free coal tar pitch distillate |
CN103450936A (en) * | 2013-09-11 | 2013-12-18 | 赛鼎工程有限公司 | Treatment method of heavy oil in coal tar |
KR20170131693A (en) * | 2015-05-12 | 2017-11-29 | 가부시키가이샤 고베 세이코쇼 | Raw material pitch for carbon fiber production |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103205271B (en) | 2012-01-12 | 2016-03-09 | 易高环保能源研究院有限公司 | Hydrogenation of high temperature coal tar produces the method for mesophase pitch |
WO2014200314A1 (en) * | 2013-06-13 | 2014-12-18 | 오씨아이 주식회사 | Method for producing high-purity pitch for high-efficiency carbon materials |
KR101645814B1 (en) * | 2014-10-17 | 2016-08-05 | 오씨아이 주식회사 | Pitch as carbonaceous raw material and method for manufacturing pitch as carbonaceous raw material |
KR101646845B1 (en) * | 2014-12-02 | 2016-08-16 | 오씨아이 주식회사 | Highly efficient method for manufacturing pitch as carbonaceous raw material |
-
1987
- 1987-07-29 JP JP62187749A patent/JPH0733514B2/en not_active Expired - Lifetime
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH026624A (en) * | 1988-02-22 | 1990-01-10 | E I Du Pont De Nemours & Co | Carbon fiber well-balanced in ultrahigh modulus and high tensile force |
EP2363446A3 (en) * | 2001-05-11 | 2013-05-15 | Koppers Delaware, Inc. | Mesophase pitch and preparation from quinoline insoluble free coal tar pitch distillate |
WO2007049731A1 (en) | 2005-10-28 | 2007-05-03 | Mitsubishi Tanabe Pharma Corporation | Novel cell membrane-permeable peptide |
CN103450936A (en) * | 2013-09-11 | 2013-12-18 | 赛鼎工程有限公司 | Treatment method of heavy oil in coal tar |
CN103450936B (en) * | 2013-09-11 | 2015-03-11 | 赛鼎工程有限公司 | Treatment method of heavy oil in coal tar |
KR20170131693A (en) * | 2015-05-12 | 2017-11-29 | 가부시키가이샤 고베 세이코쇼 | Raw material pitch for carbon fiber production |
Also Published As
Publication number | Publication date |
---|---|
JPH0733514B2 (en) | 1995-04-12 |
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