Composite ion-exchange material, preparation and use thereof

Details Composite ion-exchange material, preparation and use thereof Composite ion-exchange material, preparation and use thereof

B - Operations, Transporting

01

J

134/35, 362/40

B01J 39/08 (2006.01) B01J 39/02 (2006.01) B01J 41/08 (2006.01) B01J 47/00 (2006.01) C02F 1/42 (2006.01)

Patent

CA 2145075

Inorganic hydrated metal oxide and metal silicate gels are supported on the surface of particles of porous material by precipitation therein without significant deposit within pores of the support material and without encapsulating the particles of porous material. Especially preferred hydrated oxides and silicate gels are those of titanium. Preferred porous particles are composed of carbon. These novel composite materials are prepared by spraying an aqueous basic material to the porous particles and then spraying a concentrated aqueous acidic solution of a source of suitable metallic ions so as to rapidly form a gelatinous precipitate on the surface of the porous particles which remain porous.

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