| 摘要 |
A method of separating fine coal particles from refuse particles comprising the step of: (a) providing a coal filter cake (b) forming a slurry of fine coal particles, refuse particles in a liquid mixture comprising water and organic liquid, (c) contacting said coal filter cake with said slurry, whereby a major portion of said water and a major portion of said refuse pass through said filter cake and a major portion of said organic liquid and a major portion of said fine coal particles pass across the top of said filter cake.
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