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

1992-08-21

1994-01-11

Beck, Shrive

Coating processes

Particles, flakes, or granules coated or encapsulated

427214, 427333, 4274191, B05D 700, B05D 136

Patent

active

052779319

ABSTRACT:
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 onto 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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