JPS6411190A - Production of precursor pitch for general-purpose carbon fiber - Google Patents

Production of precursor pitch for general-purpose carbon fiber

Info

Publication number
JPS6411190A
JPS6411190A JP16551787A JP16551787A JPS6411190A JP S6411190 A JPS6411190 A JP S6411190A JP 16551787 A JP16551787 A JP 16551787A JP 16551787 A JP16551787 A JP 16551787A JP S6411190 A JPS6411190 A JP S6411190A
Authority
JP
Japan
Prior art keywords
pitch
insoluble
solvent
quinoline
benzene
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
Application number
JP16551787A
Other languages
Japanese (ja)
Inventor
Yukihiro Osugi
Hidetaka Sugibe
Mamoru Kamishita
Takeshi Nagasawa
Hiroaki Shono
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JFE Steel Corp
Nitto Boseki Co Ltd
Original Assignee
Nitto Boseki Co Ltd
Kawasaki Steel Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nitto Boseki Co Ltd, Kawasaki Steel Corp filed Critical Nitto Boseki Co Ltd
Priority to JP16551787A priority Critical patent/JPS6411190A/en
Publication of JPS6411190A publication Critical patent/JPS6411190A/en
Pending legal-status Critical Current

Links

Landscapes

  • Working-Up Tar And Pitch (AREA)
  • Inorganic Fibers (AREA)

Abstract

PURPOSE:To efficiently produce the titled pitch having excellent spinning property and infusibility at a low cost, by adding a solvent-insoluble component prepared by extracting purified raw material pitch with a solvent to the purified raw material pitch and heat-treating the resultant blended pitch under specific condition. CONSTITUTION:Coal tar pitch is purified to provide pitch without containing component insoluble in quinoline. A solvent-insoluble component obtained by extracting the above-mentioned pitch with a tar based light oil, such as benzene, toluene or xylene, is added to the afore-mentioned pitch. The resultant blended pitch is then heat-treated at 300-420 deg.C under condition of blowing an inert gas under <=200mmHg reduced pressure to provide the aimed pitch, having >=200 deg.C softening point, 50-65wt.% benzene-insoluble content and <=0.5wt.% quinoline-insoluble content.
JP16551787A 1987-07-03 1987-07-03 Production of precursor pitch for general-purpose carbon fiber Pending JPS6411190A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16551787A JPS6411190A (en) 1987-07-03 1987-07-03 Production of precursor pitch for general-purpose carbon fiber

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16551787A JPS6411190A (en) 1987-07-03 1987-07-03 Production of precursor pitch for general-purpose carbon fiber

Publications (1)

Publication Number Publication Date
JPS6411190A true JPS6411190A (en) 1989-01-13

Family

ID=15813896

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16551787A Pending JPS6411190A (en) 1987-07-03 1987-07-03 Production of precursor pitch for general-purpose carbon fiber

Country Status (1)

Country Link
JP (1) JPS6411190A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03206127A (en) * 1989-12-28 1991-09-09 Nkk Corp Pitch composition

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03206127A (en) * 1989-12-28 1991-09-09 Nkk Corp Pitch composition

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