Cationic processing of kaolin ores

Details Cationic processing of kaolin ores Cationic processing of kaolin ores

C - Chemistry, Metallurgy

04

B

261/44

C04B 33/04 (2006.01) B01F 17/18 (2006.01) B03B 1/04 (2006.01) B28C 1/06 (2006.01) B28C 1/08 (2006.01) C09C 1/42 (2006.01)

Patent

CA 2013619

A method for recovering a fine particle size fraction of a negatively charged mineral from an ore, such as a kaolin clay crude, which comprises forming an aqueous pulp of the ore, dispersing the pulp by adding thereto sufficient water-soluble organic cationic dispersant to impart a positive zeta potential to said particles and, preferably, an acidic pH to said pulp, removing coarse particles from said dispersed pulp and fractionating the dispersed pulp to separate a fine particle size fraction of mineral particles from coarser particles.

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