JPS6411190A - Production of precursor pitch for general-purpose carbon fiber - Google Patents
Production of precursor pitch for general-purpose carbon fiberInfo
- Publication number
- JPS6411190A JPS6411190A JP16551787A JP16551787A JPS6411190A JP S6411190 A JPS6411190 A JP S6411190A JP 16551787 A JP16551787 A JP 16551787A JP 16551787 A JP16551787 A JP 16551787A JP S6411190 A JPS6411190 A JP S6411190A
- Authority
- JP
- Japan
- Prior art keywords
- pitch
- insoluble
- solvent
- quinoline
- benzene
- 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.)
- Pending
Links
Landscapes
- Working-Up Tar And Pitch (AREA)
- Inorganic Fibers (AREA)
Abstract
PURPOSE:To efficiently produce the titled pitch having excellent spinning property and infusibility at a low cost, by adding a solvent-insoluble component prepared by extracting purified raw material pitch with a solvent to the purified raw material pitch and heat-treating the resultant blended pitch under specific condition. CONSTITUTION:Coal tar pitch is purified to provide pitch without containing component insoluble in quinoline. A solvent-insoluble component obtained by extracting the above-mentioned pitch with a tar based light oil, such as benzene, toluene or xylene, is added to the afore-mentioned pitch. The resultant blended pitch is then heat-treated at 300-420 deg.C under condition of blowing an inert gas under <=200mmHg reduced pressure to provide the aimed pitch, having >=200 deg.C softening point, 50-65wt.% benzene-insoluble content and <=0.5wt.% quinoline-insoluble content.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16551787A JPS6411190A (en) | 1987-07-03 | 1987-07-03 | Production of precursor pitch for general-purpose carbon fiber |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16551787A JPS6411190A (en) | 1987-07-03 | 1987-07-03 | Production of precursor pitch for general-purpose carbon fiber |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6411190A true JPS6411190A (en) | 1989-01-13 |
Family
ID=15813896
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16551787A Pending JPS6411190A (en) | 1987-07-03 | 1987-07-03 | Production of precursor pitch for general-purpose carbon fiber |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6411190A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03206127A (en) * | 1989-12-28 | 1991-09-09 | Nkk Corp | Pitch composition |
-
1987
- 1987-07-03 JP JP16551787A patent/JPS6411190A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03206127A (en) * | 1989-12-28 | 1991-09-09 | Nkk Corp | Pitch composition |
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