Method of producing precursor pitches for carbon fibers

Details Method of producing precursor pitches for carbon fibers Method of producing precursor pitches for carbon fibers

1986-11-12

1988-07-19

Sneed, H. M. S.

Mineral oils: processes and products

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

Solvent extraction

208 39, 208 22, 4234476, C10C 120, C10C 302

Patent

active

047583266

ABSTRACT:
A method of producing a precursor pitch suitable for the production of carbon fibers, which method includes dissolving a coal tar pitch in a particular solvent to remove a solvent insoluble matter, distilling off the solvent to obtain a purified pitch containing no free carbon, and heat-treating the purified pitch to obtain an objective precursor pitch.

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