Method of producing a precursor pitch for carbon fiber

Details Method of producing a precursor pitch for carbon fiber Method of producing a precursor pitch for carbon fiber

1984-12-27

1986-05-20

Metz, Andrew H.

Mineral oils: processes and products

Asphalts, tars, pitches and resins; making, treating and...

Chemical modification of asphalt, tar, pitch or resin

208 39, 208 22, 4234474, C10C 300, C10C 302, D01F 912

Patent

active

045899754

ABSTRACT:
A method of producing a precursor pitch for use in the production of carbon fibers, which comprises hydrogenating a soft or middle tar pitch to obtain a hydrogenated pitch containing no free carbon and high molecular weight components and then subjecting it to a heat treatment. In this method, the hydrogenation is carried out in the presence of tetralin at a temperature of 400.degree.-450.degree. C., and the heat treatment after the removal of solvent insoluble components and solvent is carried out in an inert gas atmosphere at a temperature of 450.degree.-500.degree. C. and under a reduced pressure of 0.1-10 Torr.

REFERENCES:
patent: 4184942 (1980-01-01), Angier et al.
patent: 4277324 (1981-07-01), Greenwood
patent: 4397830 (1983-08-01), Uemura et al.
patent: 4427531 (1984-01-01), Dickakian
patent: 4436615 (1984-03-01), Boodman et al.
patent: 4448670 (1984-05-01), Dickakian
patent: 4460557 (1984-07-01), Takashima et al.
patent: 4472265 (1984-09-01), Otani
Chemical Abstracts, vol. 100, No. 6, Feb. 1984, p. 64, No. 35,749m, Columbus, Ohio, U.S.A. & JP-A-58 144 126.

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