Processing of clays

Details Processing of clays Processing of clays

C - Chemistry, Metallurgy

09

C

261/44

C09C 1/42 (2006.01) D21H 19/40 (2006.01)

Patent

CA 1090833

"Improvements in or relating to the processing of clays". ABSTRACT A process for treating a clay mineral of the kandite group by contacting a fluid suspension of the clay mineral with a reducing bleaching agent for a time sufficient to give a desired improvement in brightness of the clay, wherein the fluid suspension of the clay mineral in water has a solids content of at least 50% by weight and a pH greater than 7.0 and contains a dispersing agent. -1-

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