Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
RAW PITCH FOR CARBON FIBER
Document Type and Number:
Japanese Patent JPS5874786
Kind Code:
A
Abstract:

PURPOSE: To provide raw pitch for carbon fiber, which gives a carbon fiber having a high modulus and a high strength, by heat-treating a specified mixture consisting of a fraction and heavy oil obtd. by the steam cracking of petroleum and heavy oil obtd. by the fluid catalytic cracking of petroleum.

CONSTITUTION: A mixture consisting of heavy oil (A) having a b.p. of 200°C or higher obtd. by the steam cracking of petroleum, heavy oil (B) having a b.p. of 200°C or higher obtd. by the fluid catalytic cracking of petroleum, and hydrogenated oil (C) obtd. by hydrogenating 10W70% of the aromatic nucleus of arom. hydrocarbons contained in a fraction mentioned below by contacting in the presence of a hydrogenating catalyst with hydrogen a fraction having a boiling range of 160W400°C obtd. by the steam creacking of petroleum and/or a fraction having a boiling range of 160W400°Cobtd. by heat-treating at 380W 480°C heavy oil having a b.p. of 200°Cor higher obtd. by the steam cracking of petroleum, is used. Said mixture is heat-treated at 370W480°C under a pressure of 2W50kg/cm2 G to obtain the desired pitch.


Inventors:
KAMIMURA SEIICHI
YAMAMOTO SHIYUNICHI
HIROSE TAKAO
TAKASHIMA HIROAKI
KATOU OSAMU
Application Number:
JP17207781A
Publication Date:
May 06, 1983
Filing Date:
October 29, 1981
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
NIPPON OIL CO LTD
International Classes:
C10G51/00; C10C3/02; C10C3/04; C10C3/10; C10G9/36; C10G11/18; C10G69/00; D01F9/14; D01F9/155; (IPC1-7): C10G51/00; C10G69/00; D01F9/14
Attorney, Agent or Firm:
Tatsuo Ito