Process for producing anionic clay using boehmite

Details Process for producing anionic clay using boehmite Process for producing anionic clay using boehmite

C - Chemistry, Metallurgy

01

F

C01F 7/16 (2006.01) C01F 7/00 (2006.01) B01J 23/00 (2006.01)

Patent

CA 2361235

This patent describes economical and environment-friendly processes for the synthesis of anionic clays. It involves reacting a slurry comprising boehmite 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 that contain anionic clays.

L'invention concerne des procédés économiques et écologiques pour la synthèse d'argiles anioniques, dans lesquels on fait réagir une suspension contenant de la boehmite avec une source de magnésium. Il n'est pas nécessaire de laver ou de filtrer le produit obtenu, que l'on peut directement sécher par pulvérisation afin de former des microsphères ou que l'on peut extruder afin de former des corps moulés. On peut associer le produit obtenu à d'autres ingrédients afin de fabriquer des catalyseurs, des adsorbants, des produits pharmaceutiques et cosmétiques, des détergents et d'autres biens de consommation contenant des argiles anioniques.

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