Liquid purification or separation – Processes – Preventing – decreasing – or delaying precipitation,...
Patent
1987-09-01
1989-04-11
Hruskoci, Peter
Liquid purification or separation
Processes
Preventing, decreasing, or delaying precipitation,...
210699, 210701, 252181, 2523892, 25238952, 422 15, 422 16, 422 18, 422 19, C02F 514
Patent
active
048204234
ABSTRACT:
A method of preventing corrosion and scale formation on metals exposed to industrial recirculating waters having a pH ranging between about 7.0 to about 9.5, which consists essentially of adding to said industrial recirculating waters an effective amount of a combination of a water-soluble zinc salt, a nitrogen-containing N-alkylated acrylamide zinc complexing polymer and an orthophosphate ion source, wherein:
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Blaser Laura J.
Crucil Guy A.
Cupoli Anthony L.
Epple Donald G.
Hruskoci Peter
Nalco Chemical Company
Premo John G.
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