Process for making solvated mesophase pitch

Details Process for making solvated mesophase pitch Process for making solvated mesophase pitch

1993-10-12

1995-08-01

Myers, Helane

Mineral oils: processes and products

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

Solvent extraction

208 22, 208 39, 208 44, C01C 302

Patent

active

054377803

ABSTRACT:
This invention relates to a process for producing mesophase pitch in high yields. The process of the invention comprises isolating a heavy fraction of a heat soaked pitch by a solvent extraction, heat soaking the isolated heavy fraction to increase the size and number of larger heavy aromatics, and isolating the larger heavy aromatics by solvent extraction to obtain a larger heavy aromatic solvated mesophase pitch.

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Japanese Patents: No.: Japan No. Sho 54(1979)-160427; No. Sho 58(1983)-214531; No. Sho 58 (1983)-196292 No. Sho 58(1983)-136835; No. Sho 57 (1982)-119984.

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