C - Chemistry – Metallurgy – 02 – F
Patent
C - Chemistry, Metallurgy
02
F
C02F 5/10 (2006.01) C02F 5/14 (2006.01) C23F 11/08 (2006.01) C23F 11/10 (2006.01)
Patent
CA 2083560
-38- ABSTRACT A method for controlling the deposition of scale imparting species on the structural surfaces of steam generating systems comprising the use of a water soluble polymer having the structure Image wherein Rl is H or lower (C1-C4) alkyl, R2 is (CH2-CH2-0)n, Image or a mixture of both, and n is an integer of from about 1 to about 40, R3 is H, lower (C1-C4) alkyl or an acetate. This polymer may also be used in concert with topping agents such as phosphoric acids, phosphonic acids, amines, metal chelating agents and oxygen scavengers.
Bair Keith A.
Boyette Scott M.
Chen Fu
Betzdearborn Inc.
Borden Ladner Gervais Llp
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