Method of increasing yield of petroleum pitch

Details Method of increasing yield of petroleum pitch Method of increasing yield of petroleum pitch

1975-11-10

1981-01-06

Vertiz, O. R.

Mineral oils: processes and products

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

Chemical modification of asphalt, tar, pitch or resin

C10G 3706

Patent

active

042435137

ABSTRACT:
Clarified slurry oil feedstock is heated at temperatures above 340.degree. C. and preferably between 390.degree. C. and 410.degree. C. for periods exceeding a minimum of about 2 hours, under reflux conditions and in the absence of air, so as to maximize the polymerization of light ends in the formation of petroleum pitch. An increased yield of petroleum pitch is obtained from the clarified slurry oil feedstock.

REFERENCES:
patent: 2992181 (1961-07-01), Renner
patent: 3288701 (1966-11-01), Fauber et al.
patent: 3318801 (1967-05-01), Alexander et al.
patent: 3355377 (1967-11-01), King
patent: 4017378 (1977-04-01), Fauveau et al.

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