C - Chemistry – Metallurgy – 02 – F
Patent
C - Chemistry, Metallurgy
02
F
149/15, 134/39
C02F 1/64 (2006.01) C02F 5/08 (2006.01) C02F 5/10 (2006.01) C02F 5/12 (2006.01) C02F 5/14 (2006.01) C23F 11/10 (2006.01) C23F 11/12 (2006.01) C23G 1/24 (2006.01)
Patent
CA 1329752
ABSTRACT A method of removing iron contaminants in an aqueous system by introducing and maintaining within the system at least one ortho dihydroxyaromatic compound having at least one electron withdrawing group pendant from the aromatic ring and, further, a method of inhibiting calcium scale formation in the presence of iron contaminants by utilizing at least one dehydroxyaromatic compound in combination with calcium scale inhibitors.
602298
Henry Wayne Lamar
Kelly John Arthur
Kreh Robert Paul
Kuhn Vincent Robert
Lundquist Joseph Theodore
Betzdearborn Inc.
Gowling Lafleur Henderson Llp
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