Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
RAW PITCH FOR CARBON FIBER
Document Type and Number:
Japanese Patent JP57168989
Kind Code:
A
Abstract:

PURPOSE: The titled raw pitch of low solftening temp. capable of easily forming mesophase in the preparation of precursor pitch, which is prepd. by thermally treating a heavy oil produced as a byproduct in the fluid catalytic cracking of a petroleum under hydrogen pressure and specified conditions.

CONSTITUTION: A heavy oil of b.p. ≥200°C produced as a byproduct in the preparation of light oil such as gasoline by fluid catalytic cracking of petroleum such as kerosene at about 450W550°C is thermally treated at 400W500°C under hydrogen pressure ≥20kg/cm2 in the absence of hydrogenation catalysts, to obtain raw pitch for carbon fiber.


Inventors:
Kamimura, Seiichi
Yamamoto, Shunichi
Hirose, Takao
Takashima, Hiroaki
Kato, Osamu
Application Number:
JP1981000054307
Publication Date:
October 18, 1982
Filing Date:
April 13, 1981
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
NIPPON OIL CO LTD
International Classes:
C10G69/04; C01B31/00; C01B31/02; C10C3/00; C10C3/02; C10C3/04; C10C3/10; D01F9/12; D01F9/155; (IPC1-7): C01B31/02; C10C3/00; C10G69/04; D01F9/12