Inorganic composition, process of preparation and method of use
AssigneeCalgon Corporation
InventorsDenis E. Hassick, Michael P. Flaherty, Pamela J. Dotter, Robert J. Guerrini
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Abstract
A coagulant which is the reaction product of a trivalent metal salt, excluding chromium salts, an acid phosphorous compound and an aluminum hydroxy chloride, and a process for preparing such coagulant. This coagulant may be effectively used to remove suspended solids and various impurities in most water treatment applications.
Claims6
A composition comprising the reaction product of one or more trivalent metal salts other than chromium salts, an acid phosphorous compound and an aluminum hydroxy chloride, wherein said composition comprises:
- 36% ferric chloride solution;
- phosphorous acid flake;
- epichlorohydrin-dimethylacrylate;
- and
- 50% Al2(OH)5Cl.
A composition comprising the reaction product of one or more trivalent metal salts other than chromium salts, an acid phosphorous compound and an aluminum hydroxy chloride, wherein said composition comprises:
- 36% ferric chloride solution;
- phosphorous acid flake;
- polydiallyldimethylaluminum chloride;
- 50% Al2(OH)5Cl;
- and
- water.
A composition comprising the reaction product of one or more trivalent metal salts other than chromium salts, an acid phosphorous compound and an aluminum hydroxy chloride, wherein
- said composition comprises:
- 40% ferric chloride solution;
- 70% phosphorous acid solution;
- and
- 50% Al2(OH)5Cl.
Dependencies are inferred from the claim text.