C - Chemistry – Metallurgy – 02 – F
Patent
C - Chemistry, Metallurgy
02
F
C02F 5/10 (2006.01) C02F 1/00 (2006.01) C02F 1/04 (2006.01) C02F 5/14 (2006.01) C08F 8/32 (2006.01) C08F 8/36 (2006.01) C08F 8/38 (2006.01) C08F 8/40 (2006.01) C08F 20/06 (2006.01) C08F 20/10 (2006.01) C08F 220/56 (2006.01) C23F 11/00 (2006.01) C23F 11/08 (2006.01) C23F 11/173 (2006.01) F22B 37/48 (2006.01) F28G 9/00 (2006.01) G21C 1/01 (2006.01) G21C 19/00 (2006.01) G21C 19/02 (2006.01) G21C 19/307 (2006.01) G21D 1/00 (2006.01)
Patent
CA 2210027
A novel high-purity polymer dispersant and sludge conditioner added to the feedwater entering the secondary side of a nuclear steam generator for minimizing the accumulation of metal-oxide deposits within the nuclear steam generator during the continuing operation of the generator is disclosed. The high-purity polymer is selected from a group consisting of acrylic acid polymer, methacrylic acid polymer, acrylate polymer, methacrylate polymer, copolymers, and terpolymers, acrylate/acrylamide copolymer,acrylate/methacrylate copolymer, terpolymers, and mixtures thereof. Methods of making and applying the polymer dispersant and sludge conditioner are described. Means for removing the metal oxides and polymer from the blowdown stream are disclosed.
Bates Joseph D.
Egebrecht Phillip M.
Haff James D.
Kelly John A.
Minnis Ralph L.
Betzdearborn Inc.
Commonwealth Edison Company
Exelon Generation Company Llc
Ge Betz Inc.
Osler Hoskin & Harcourt Llp
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