Refining of coal

Details Refining of coal Refining of coal

C - Chemistry, Metallurgy

10

L

196/11

C10L 9/00 (2006.01) C10B 57/08 (2006.01) C10G 1/00 (2006.01) C10L 9/02 (2006.01)

Patent

CA 1231906

ABSTRACT OF THE DISCLOSURE A method of solvent refining coal to produce normally solid solvent refined coal which can be used for the manufacture of high quality electrode coke, includes a two-step liquefaction process. The process includes contacting coal with a solvent in a first step, thereby to refine the coal partially in a first reaction. Thereafter some of the solvent is removed, and, in a second step, the partially refined coal from the first step is allowed to remain in contact with the residual solvent for further refining of the coal in a second reaction. After the second reaction and separation of undissolved matter therefrom, at least some of the residual solvent is removed, thereby to produce normally solid solvent refined coal as precursor for the manufacture of high quality electrode coke. The invention also provides solvent refined coal when produced by said method.

448311

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