JPS5590620A - Production of fibrous carbon from coal - Google Patents
Production of fibrous carbon from coalInfo
- Publication number
- JPS5590620A JPS5590620A JP15866978A JP15866978A JPS5590620A JP S5590620 A JPS5590620 A JP S5590620A JP 15866978 A JP15866978 A JP 15866978A JP 15866978 A JP15866978 A JP 15866978A JP S5590620 A JPS5590620 A JP S5590620A
- Authority
- JP
- Japan
- Prior art keywords
- coal
- depolymerizate
- solvent
- modified
- raw material
- 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
- Inorganic Fibers (AREA)
Abstract
PURPOSE: A modified depolymerizate of specific coal is used as the raw material to produce said fibrous carbon with uniform properties and high strength in, high carbonization yield based on the raw material.
CONSTITUTION: Coal is dissolved in a bydrocarbon solvent under hydrogen pressure and the insoluble residue is separated off. Then, the hydrocarbon solvent is distilled off to give coal depolymerizate. The product is further extracted with a nonaromatic solvent to remove the extractable components, thus giving said modified coal depolymerizate. The extraction with the nonaromatic solvent is effected in a mild condition so that the heat polymerization is inhibited. The operation removes the compoents of low softening points to give a modified coal depolymerizate with high softening point, which can readily be made into fibers and also readily made infusible. The process of solvent extraction required milder conditions than the heat treatment process and distillation process and remarkably saves the operation costs.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15866978A JPS5590620A (en) | 1978-12-25 | 1978-12-25 | Production of fibrous carbon from coal |
AU52367/79A AU516280B2 (en) | 1978-12-21 | 1979-10-31 | Production of carbon fibres |
US06/096,971 US4320107A (en) | 1978-12-21 | 1979-11-23 | Process for producing carbon fibers |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15866978A JPS5590620A (en) | 1978-12-25 | 1978-12-25 | Production of fibrous carbon from coal |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5590620A true JPS5590620A (en) | 1980-07-09 |
JPS6247970B2 JPS6247970B2 (en) | 1987-10-12 |
Family
ID=15676760
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15866978A Granted JPS5590620A (en) | 1978-12-21 | 1978-12-25 | Production of fibrous carbon from coal |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5590620A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5626009A (en) * | 1979-08-09 | 1981-03-13 | Mitsui Cokes Kogyo Kk | Production of carbon fiber |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0486565A (en) * | 1990-07-30 | 1992-03-19 | Nhk Spring Co Ltd | Electroconductive contact |
-
1978
- 1978-12-25 JP JP15866978A patent/JPS5590620A/en active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5626009A (en) * | 1979-08-09 | 1981-03-13 | Mitsui Cokes Kogyo Kk | Production of carbon fiber |
Also Published As
Publication number | Publication date |
---|---|
JPS6247970B2 (en) | 1987-10-12 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS555954A (en) | Preparation of pitch for carbon fiber | |
ES388730A1 (en) | Process for recovering polymers from organic solutions | |
GB1481800A (en) | Production of coke | |
JPS5590620A (en) | Production of fibrous carbon from coal | |
EP0120697A3 (en) | Process for preparing a spinnable pitch product | |
US2431677A (en) | Process for the recovery of oil from shales | |
US4319980A (en) | Method for treating coal to obtain a refined carbonaceous material | |
US3835024A (en) | Method for manufacturing pitch | |
US4414192A (en) | Method of producing a highly reactive pitch fraction and its usage | |
GB1420493A (en) | Shaped articles of isotropic carbon | |
EP0153419B1 (en) | Process for treating coal tar or coal tar pitch | |
CA1078774A (en) | Process for manufacturing a carbonaceous material | |
GB1387757A (en) | Process for production of carbon fibres and the resultant fibres | |
JPS5584421A (en) | Method of making fibrous carbon | |
US2985577A (en) | Process for the treatment of coal tars and coal tar products | |
JPS5649789A (en) | Production of pitch | |
JPS56109287A (en) | Manufacture of carbonaceous raw material for needlelike coke | |
JPS57205522A (en) | Production of high-strength carbon fiber | |
GB1528472A (en) | Manufacture of coke | |
GB934986A (en) | Refining the liquid hydrogenation products of coal | |
US2463204A (en) | Recovery of sludge acids | |
US2453544A (en) | Process for preparing and coking bituminous coal | |
JPS5626009A (en) | Production of carbon fiber | |
US2040101A (en) | Treatment of tar | |
US2527065A (en) | Process of making resinous aldehyde tar acids and hydrocarbon oil condensation products |