Production of carbon artifact precursors

Details Production of carbon artifact precursors Production of carbon artifact precursors

1981-01-14

1982-12-14

Douglas, Winston A.

Mineral oils: processes and products

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

By chemical conversion of oil

208 44, 208 45, C10C 120, C10C 118

Patent

active

043637159

ABSTRACT:
A low coking pitch suitable for carbon artifact manufacture, especially carbon fiber manufacture, is obtained by heat soaking and vacuum stripping the distillate recovered from cat cracker bottoms. Preferably a cat cracker bottom distillate boiling in the range of about 450.degree. C. to 510.degree. C. at 760 mm Hg is heat soaked at about 350.degree. C. to about 500.degree. C. for up to about 20 hours and then vacuum stripped at below 400.degree. C.

REFERENCES:
patent: 2992181 (1961-07-01), Renner
patent: 3692663 (1972-09-01), Ueda
patent: 3919376 (1975-11-01), Schulz
patent: 4184942 (1980-01-01), Angier et al.
patent: 4208267 (1980-06-01), Diefendorf
patent: 4219404 (1980-08-01), Dickakian
patent: 4277324 (1981-07-01), Greenwood

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