Process for continuous production of pitch

Details Process for continuous production of pitch Process for continuous production of pitch

1977-04-28

1978-03-21

Meros, Edward J.

Mineral oils: processes and products

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

By chemical conversion of oil

208 22, 208131, C10C 100, C10G 900

Patent

active

040802833

ABSTRACT:
Pitch is produced continuously by heat treating a heavy hydrocarbon oil at a temperature of 350.degree. to 500.degree. C successively in two or more reactors connected in series, outlet to inlet, recirculating, at the same time, one portion of the liquid output substance from at least one reactor into that reactor, and introducing the output substance (molten pitch) of the final reactor into an after-treatment chamber of duct shape with an inactive atmosphere sealed therewithin thereby to cool the output substance.

REFERENCES:
patent: 2752290 (1956-06-01), Beattie
patent: 2756186 (1956-07-01), Owen et al.
patent: 3140248 (1964-07-01), Bell et al.
patent: 3318801 (1967-05-01), Alexander et al.
patent: 3928170 (1975-12-01), Takahashi et al.
patent: 4014781 (1977-03-01), Ueda

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