JPS5777016A - Manufacture of small mesocarbon sphere - Google Patents
Manufacture of small mesocarbon sphereInfo
- Publication number
- JPS5777016A JPS5777016A JP55153318A JP15331880A JPS5777016A JP S5777016 A JPS5777016 A JP S5777016A JP 55153318 A JP55153318 A JP 55153318A JP 15331880 A JP15331880 A JP 15331880A JP S5777016 A JPS5777016 A JP S5777016A
- Authority
- JP
- Japan
- Prior art keywords
- pitch
- small
- mesocarbon
- spheres
- manufacture
- 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)
- Carbon And Carbon Compounds (AREA)
- Working-Up Tar And Pitch (AREA)
Abstract
PURPOSE: To manufacture small mesocarbon spheres in a high yield by adding hydrocarbon oil with a specified b.p. and repeating heat treatment when pitch is heat treated to manufacture small mesocarbon spheres.
CONSTITUTION: Pitch such as soft coal tar pitch is heated to 350W500°C to form small mesocarbon spheres, and the spheres are separated from the pitch matrix by solvent extraction, solvent fractionation, centrifugal separation, pressure filtration or other method. At this time, ≥1/4 time as much hydrocarbon oil as pitch is added, and heat treatment is carried out again at 350W500°C. The b.p. of the hydrocarbon oil is 300°C to the heat treatment temp. Thus, the yield of small mesocarbon spheres can be increased considerably.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55153318A JPS5777016A (en) | 1980-10-31 | 1980-10-31 | Manufacture of small mesocarbon sphere |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55153318A JPS5777016A (en) | 1980-10-31 | 1980-10-31 | Manufacture of small mesocarbon sphere |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5777016A true JPS5777016A (en) | 1982-05-14 |
JPS631241B2 JPS631241B2 (en) | 1988-01-12 |
Family
ID=15559867
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP55153318A Granted JPS5777016A (en) | 1980-10-31 | 1980-10-31 | Manufacture of small mesocarbon sphere |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5777016A (en) |
-
1980
- 1980-10-31 JP JP55153318A patent/JPS5777016A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS631241B2 (en) | 1988-01-12 |
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