C - Chemistry – Metallurgy – 02 – F
Patent
C - Chemistry, Metallurgy
02
F
C02F 5/10 (2006.01) C02F 5/12 (2006.01)
Patent
CA 2155047
A treatment for controlling the deposition of scale imparting spe- cies on the structural surfaces of steam generating systems, wherein the aqueous medium is maintained at a pH which minimizes magnetite solu- bility, comprising the use of a combination of an organic amine and a nonionic polymer having the structure: wherein R1 is H or lower (C1-C4) alkyl, R2 is (CH2 - CH2 - O)n, or a mixture of both, n is an integer of from 1 to about 40, and R3 is H, lower (C1-C4) alkyl or an acetate.
Bair Keith A.
Boyette Scott M.
Chen Fu
Betzdearborn Inc.
Borden Ladner Gervais Llp
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