Title:
HYDROGENATED COAL TAR PITCH AND PRODUCTION METHOD THEREOF
Document Type and Number:
Japanese Patent JP2015166444
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide hydrogenated coal tar pitch capable of obtaining pitch-based needle coke having a small thermal expansion coefficient and sufficiently suppressed puffing phenomenon.SOLUTION: Hydrogenated coal tar pitch obtained by performing a hydrogen treatment of coal tar pitch has a 0.02 wt% or less quinoline insoluble, a sulfur content of 0.33 wt% or less and a nitrogen content of 0.95 wt% or less. Pitch-based needle coke obtained from the hydrogenated coal tar pitch is also provided.
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| JPH01126371 | CUSHIONING ASPHALT COMPOSITION |
| JPS59138262 | ASPHALT COMPOSITION |
Inventors:
HIRAHARA SATOSHI
HARADA YASUYUKI
TSUDA HIROSHI
NAKADA HIROAKI
KATO AKIRA
HARADA YASUYUKI
TSUDA HIROSHI
NAKADA HIROAKI
KATO AKIRA
Application Number:
JP2015004329A
Publication Date:
September 24, 2015
Filing Date:
January 13, 2015
Export Citation:
Assignee:
MITSUBISHI CHEM CORP
International Classes:
C08L95/00; C10B57/04; C10C3/04
Domestic Patent References:
| JPS60149690A | 1985-08-07 | |||
| JPS59122585A | 1984-07-16 | |||
| JPS6169888A | 1986-04-10 | |||
| JPH05214344A | 1993-08-24 | |||
| JPH02142890A | 1990-05-31 |
Previous Patent: JP2015166443
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