EP 0660887 A1 19950705 - METHOD AND COMPOSITION FOR INHIBITING GENERAL AND PITTING CORROSION IN COOLING TOWER WATER.
Title (en)
METHOD AND COMPOSITION FOR INHIBITING GENERAL AND PITTING CORROSION IN COOLING TOWER WATER.
Title (de)
VERFAHREN UND ZUSAMMENSETZUNG ZUR VERMEIDUNG VON ROST UND LOCHFRASS IM KÜHLTURM.
Title (fr)
PROCEDE ET COMPOSITION SERVANT A INHIBER UNE CORROSION GENERALISEE ET LA PIQURE DE CORROSION DANS UNE TOUR DE REFRIGERATION.
Publication
Application
Priority
- US 9202862 W 19920409
- US 68508791 A 19910412
Abstract (en)
[origin: WO9218665A1] A method of inhibiting the pitting corrosion rate of carbon steel in a cooling tower system comprising adding to a cooling tower water an effective amount of a corrosion inhibiting composition containing from about 1 to about 10 ppm of a water soluble molybdate, calculated as molybdate and from about 5 to about 25 ppm of a stabilized phosphate, calculated as phosphate, the corrosion inhibiting composition being substantially free of active zinc, and circulating the water in the system.
IPC 1-7
IPC 8 full level
C23F 11/08 (2006.01); C23F 11/18 (2006.01)
CPC (source: EP)
C23F 11/08 (2013.01); C23F 11/188 (2013.01)
Designated contracting state (EPC)
BE DE FR GB IT NL
DOCDB simple family (publication)
WO 9218665 A1 19921029; AU 1879492 A 19921117; AU 660027 B2 19950608; CA 2107791 A1 19921013; CA 2107791 C 20020312; EP 0660887 A1 19950705; EP 0660887 A4 19940819; GB 2271107 A 19940406; GB 2271107 B 19950222; GB 9320754 D0 19940126; KR 970001009 B1 19970125; RO 109562 B1 19950330
DOCDB simple family (application)
US 9202862 W 19920409; AU 1879492 A 19920409; CA 2107791 A 19920409; EP 92922768 A 19920409; GB 9320754 A 19931008; KR 930703111 A 19931012; RO 9301348 A 19920409