Processo para modificar as propriedades superficiais de caulinita ou de um mineral aparentado e respectiva caulinita ou de mineral aparentado

摘要

PCT No. PCT/AU95/00782 Sec. 371 Date Aug. 12, 1997 Sec. 102(e) Date Aug. 12, 1997 PCT Filed Nov. 27, 1995 PCT Pub. No. WO96/17021 PCT Pub. Date Jun. 6, 1996A method for modifying the surface of kaolinite or a kindred mineral comprises the step of subjecting the mineral to a water vapor plasma. The modification involves the generation of reactive hydroxyl sites on the surface of the kaolinite. The plasma treatment may be followed by treatment with an appropriate chemical reagent to further modify the surface properties of the mineral.