Liquid purification or separation – Processes – Preventing – decreasing – or delaying precipitation,...
Reexamination Certificate
2007-08-07
2007-08-07
Hruskoci, Peter A. (Department: 1724)
Liquid purification or separation
Processes
Preventing, decreasing, or delaying precipitation,...
C210S696000, C210S698000, C252S181000, C422S015000, C422S019000
Reexamination Certificate
active
10945398
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.
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Buckman Laboratories International Inc.
Hruskoci Peter A.
Kilyk & Bowersox P.L.L.C.
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