JPS57209989A - Preparation of coal tar pitch - Google Patents
Preparation of coal tar pitchInfo
- Publication number
- JPS57209989A JPS57209989A JP9450681A JP9450681A JPS57209989A JP S57209989 A JPS57209989 A JP S57209989A JP 9450681 A JP9450681 A JP 9450681A JP 9450681 A JP9450681 A JP 9450681A JP S57209989 A JPS57209989 A JP S57209989A
- Authority
- JP
- Japan
- Prior art keywords
- coal tar
- pitch
- impregnation
- coal
- tar pitch
- 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
Abstract
PURPOSE: To obtain pitch useful for impregnation carried out to densify and strengthen a carbon product, by thermally treating coal tar or coal pitch and forming an initial mesophase followed by adjusting the softening point thereof to a desired value.
CONSTITUTION: Coal tar pitch of free carbon content ≤1% or coal tar of free carbon content ≤0.6% is thermally treated at 350W450°C to form not more than 1% mesophase. The softening point of the obtd. coal tar pitch of coal tar is adjusted to a desired value. When high-temp. carbonized coal tar or coal tar pitch is used as a raw material, a high carbonization yield is obtd. because of high aromaticity and a high carbonization rate. Thus it is poasible to uniformly impregnate a carbon product with a large amt. of pitch and to economically prepare a pitch for impregnation excellent in impregnation efficiency and carbonized in a high yeild.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9450681A JPS57209989A (en) | 1981-06-18 | 1981-06-18 | Preparation of coal tar pitch |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9450681A JPS57209989A (en) | 1981-06-18 | 1981-06-18 | Preparation of coal tar pitch |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57209989A true JPS57209989A (en) | 1982-12-23 |
Family
ID=14112195
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9450681A Pending JPS57209989A (en) | 1981-06-18 | 1981-06-18 | Preparation of coal tar pitch |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57209989A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1985001057A1 (en) * | 1983-08-29 | 1985-03-14 | Osaka Gas Company Limited | Process for treating coal tar or coal tar pitch |
JPS6051783A (en) * | 1983-08-31 | 1985-03-23 | Osaka Gas Co Ltd | Production of binder |
-
1981
- 1981-06-18 JP JP9450681A patent/JPS57209989A/en active Pending
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1985001057A1 (en) * | 1983-08-29 | 1985-03-14 | Osaka Gas Company Limited | Process for treating coal tar or coal tar pitch |
JPS6049085A (en) * | 1983-08-29 | 1985-03-18 | Osaka Gas Co Ltd | Method for treating coal tar or coal tar pitch |
JPH0149316B2 (en) * | 1983-08-29 | 1989-10-24 | Osaka Gas Co Ltd | |
JPS6051783A (en) * | 1983-08-31 | 1985-03-23 | Osaka Gas Co Ltd | Production of binder |
JPH0149317B2 (en) * | 1983-08-31 | 1989-10-24 | Osaka Gas Co Ltd |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS57117623A (en) | Production of carbon fiber with branches | |
JPS5742514A (en) | Method for concentration of nitrogen | |
GR3001859T3 (en) | Pitch material form coal tar pitch, process for preparing it and its use | |
JPS5641817A (en) | Manufacture of molded carbon material | |
JPS57209989A (en) | Preparation of coal tar pitch | |
JPS5725418A (en) | Preparation of low-density carbon fiber | |
JPS57200585A (en) | Carbonaceous electrode plate for manufacture of fluorine by electrolysis | |
JPS5767686A (en) | Production on coke for blast furnace | |
JPS5537426A (en) | Production of calcium carbide | |
JPS5747385A (en) | Preparation of raw material pitch for pitch-based carbon fiber | |
JPS5584421A (en) | Method of making fibrous carbon | |
JPS55131088A (en) | Production of pitch for production of carbon material | |
SE7501485L (en) | ||
JPS575922A (en) | Preparation of graphite fiber | |
EP0117099A3 (en) | Novel carbonaceous pitch, process for the preparation thereof and use thereof to make carbon fibers | |
JPS53139824A (en) | Production of acrylonitrile fiber for carbon fiber production | |
JPS57100910A (en) | Preparation of molded active coke | |
JPS54142201A (en) | Treatment of finely pulverized coke | |
JPS5493001A (en) | Production of metallurgical coke | |
JPS54153801A (en) | Preparation of metallurgical formed coke | |
JPS6414296A (en) | Impregnation pitch improved in filterability and its production | |
JPS645984A (en) | Formed heat-insulating material and its production | |
JPS54146804A (en) | Production of coke | |
JPS54141802A (en) | Production of metallurgical coke from non-caking coal having high volatility | |
JPS56133387A (en) | Preparation of coke for metallurgy |