Solvent pretreatment of coal to improve coke strength

Details Solvent pretreatment of coal to improve coke strength Solvent pretreatment of coal to improve coke strength

C - Chemistry, Metallurgy

10

B

44/1, 241/135

C10B 57/12 (2006.01) C10B 57/08 (2006.01)

Patent

CA 1220939

ABSTRACT OF THE DISCLOSURE An improved process for making metallurgical coke is provided which enables the use of coals that ordinarily do not yield coke of expected stability based on the rank of the coal. The comminuted coal is pretreated by contact- ing and reacting the coal with a halogenated hydrocarbon liquid, particularly perchloroethylene, and the pretreated coal is thereafter subjected to high temperature carbonization.

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