Neomesophase formation

Details Neomesophase formation Neomesophase formation

1979-03-26

1982-07-27

Gantz, Delbert E.

Mineral oils: processes and products

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

Solvent extraction

C10C 308

Patent

active

043416217

ABSTRACT:
An improved feedstock for carbon artifact manufacture, especially carbon fiber production, is made by reacting a carbonaceous isotropic graphitizable pitch with a dealkylation catalyst in the presence of an organic solvent system having a solubility parameter at 25.degree. C. of between about 8.0 to about 9.5 to provide a solvent insoluble fraction over and above that originally in the pitch which is suitable for carbon artifact manufacture.

REFERENCES:
patent: 3505090 (1970-04-01), Pinchbeck
patent: 3839190 (1974-10-01), Frese et al.
patent: 3974264 (1976-10-01), McHenry
patent: 4005183 (1977-01-01), Singer
patent: 4032430 (1977-06-01), Lewis
patent: 4042486 (1977-08-01), Asano et al.
patent: 4184942 (1980-01-01), Angier et al.
patent: 4208267 (1980-06-01), Diefendorf et al.
Mochida et al., Carbon, 13, No. Z-D, 135-139, 1975.
Mochida et al., Fuel, 57, 225-231, 1978.

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