Use of cerium salts to inhibit manganese deposition in water systems
AssigneeBuckman Laboratories International, Inc.
InventorWayne H. Dickinson
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Abstract
Methods to control manganese deposition in an aqueous system, which include introducing a cerium-containing composition, and optionally another deposit control agent, to the aqueous system, are described. Also described, are cerium-containing compositions that promote the manganese stabilization performance of polymeric dispersants and phosphonic acids commonly used in water treatment applications. Cerium-containing compositions that can inhibit the oxidative degradation of deposit control agents are also described.
Claims16
A method of controlling manganese deposition in an aqueous system containing manganese, comprising introducing an effective amount of at least one cerium-containing composition including cerium(III) to said aqueous system to stabilize said manganese against oxidation.
Dependencies are inferred from the claim text.