Process for preparing needle coal pitch coke

Details Process for preparing needle coal pitch coke Process for preparing needle coal pitch coke

1977-06-21

1978-09-26

Levine, Herbert

Mineral oils: processes and products

Chemical conversion of hydrocarbons

With preliminary treatment of feed

208131, C10G 914

Patent

active

041168151

ABSTRACT:
A process for preparing needle coal pitch coke by mixing coal tar and/or coal tar pitch with aromatic and aliphatic solvents under atmospheric pressure and at temperatures between 15.degree. C and 140.degree. C. The mixing ratio of the aromatic and aliphatic solvents and their quantities of addition to coal tar and/or coal tar pitch are adjusted so that insoluble substances precipitate in a zone selected from the group consisting of a slurry zone and a crystal zone. By distilling a supernatant solution obtained by separating the insoluble substances occurring in the slurry or crystal zone, hydrocarbons consisting substantially of aromatic compounds and free of the insoluble substances are obtained. The obtained hydrocarbons are processed into coke.

REFERENCES:
patent: 2775549 (1956-12-01), Shea
patent: 3799865 (1974-03-01), Suetsugu et al.

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