Process for producing an anionic clay-containing composition

Details Process for producing an anionic clay-containing composition Process for producing an anionic clay-containing composition

C - Chemistry, Metallurgy

01

F

C01F 7/16 (2006.01) B01J 41/02 (2006.01)

Patent

CA 2320441

This patent describes an economical and environment friendly continuous process for the synthesis of anionic clay-containing compositions. It involves reacting a slurry comprising aluminium trihydrate and/or its calcined form, with a magnesium source. There is no necessity to wash or filter the product. It can be spray dried directly to form microspheres or can be extruded to form shaped bodies. The product can be combined with other ingredients in the manufacture of catalysts, absorbents, pharmaceuticals, cosmetics, detergents, and other commodity products.

L'invention concerne un procédé à la fois économique et écologique permettant de synthétiser en continu des compositions renfermant une argile anionique. Ce procédé consiste à faire réagir une boue renfermant de l'hydroxyde d'aluminium et/ou la forme calcinée de ce dernier, avec une source de magnésium, sans avoir besoin de laver ou de filtrer le produit. Ce produit peut être séché par pulvérisation directement, de manière à former des microsphères, ou être extrudé afin de constituer des pièces profilées. Le produit de cette invention peut en outre être associé à d'autres ingrédients pour fabriquer des catalyseurs, des agents absorbants, des produits pharmaceutiques, des cosmétiques, des détergents, et d'autres biens de consommation.

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