JPS57205522A - Production of high-strength carbon fiber - Google Patents
Production of high-strength carbon fiberInfo
- Publication number
- JPS57205522A JPS57205522A JP8698581A JP8698581A JPS57205522A JP S57205522 A JPS57205522 A JP S57205522A JP 8698581 A JP8698581 A JP 8698581A JP 8698581 A JP8698581 A JP 8698581A JP S57205522 A JPS57205522 A JP S57205522A
- Authority
- JP
- Japan
- Prior art keywords
- coal
- product
- resultant
- hydrocarbon solvent
- depolymerization
- 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
- Inorganic Fibers (AREA)
Abstract
PURPOSE: Coal depolymerization product is heat treated, extracted, separated into the solid and the liquid components and the resultant modified depolymerization product is melt spun into fiber, made infusible and carbonized to produce high-grade fiber of high mechanical strength such as strength and elasticity.
CONSTITUTION: Coal is heated in a hydrocarbon solvent under hydrogen pressure to effect solubilization and depolymerization, then undissolved parts are removed. The hydrocarbon solvent is recovered by distillation and the resultant coal depolymerization product is heat treted in an inert gas atmosphere at 400W450°C. Then, it is extracted with a hydrocarbon solvent such as quinoline, the residue is removed, then the solvent is recovered by distillation to prepare the modified coal depolymerization product of 200W300°C softening point and 0.01W0.07 oxygen/carbon atomic ratio. The resultant product is subjected to melt spinning, then made infusible and carbonized at 240W300°C.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8698581A JPS57205522A (en) | 1981-06-08 | 1981-06-08 | Production of high-strength carbon fiber |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8698581A JPS57205522A (en) | 1981-06-08 | 1981-06-08 | Production of high-strength carbon fiber |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57205522A true JPS57205522A (en) | 1982-12-16 |
Family
ID=13902153
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8698581A Pending JPS57205522A (en) | 1981-06-08 | 1981-06-08 | Production of high-strength carbon fiber |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57205522A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110475919A (en) * | 2017-04-07 | 2019-11-19 | 株式会社神户制钢所 | The manufacturing method of Porous carbon fiber plate and the manufacturing method of Porous carbon electrode |
-
1981
- 1981-06-08 JP JP8698581A patent/JPS57205522A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110475919A (en) * | 2017-04-07 | 2019-11-19 | 株式会社神户制钢所 | The manufacturing method of Porous carbon fiber plate and the manufacturing method of Porous carbon electrode |
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