Use of anionic surfactants to aid in coal/water separation

Details Use of anionic surfactants to aid in coal/water separation Use of anionic surfactants to aid in coal/water separation

B - Operations, Transporting

03

D

361/2

B03D 1/02 (2006.01) B03B 9/00 (2006.01) B03D 1/006 (2006.01) B03D 1/08 (2006.01)

Patent

CA 1108317

ABSTRACT The invention comprises a method of improving the separation of coal fines from water in froths produced by frothing coal with methylisobutyl carbonol and a hydrocarbon liquid which comprises treating said froth contain- ing the fines with a surfactant from the group consisting of fatty sulfosucci- nates, sulfated alpha olefins, and alkaryl sulfonates and then separating said fines from the water by either sedimentation or filtration or centrifugation or a combination of these unit operations.

322985

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