发明名称 |
Method for preventing corrosion in aqueous systems |
摘要 |
A method for inhibiting corrosion in industrial cooling waters which contain hardness and a pH of at least 6.5, comprising using a water-soluble inorganic phosphate capable of inhibiting corrosion in an aqueous alkaline environment and a co- or terpolymer of acrylic acid and certain substituted acrylamides such as t-butyl acrylamide. A water-soluble organic phosphonate capable of inhibiting corrosion in an alkaline environment may be used as an adjunct for the phosphate.
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申请公布号 |
US4744949(A) |
申请公布日期 |
1988.05.17 |
申请号 |
US19870073369 |
申请日期 |
1987.07.06 |
申请人 |
NALCO CHEMICAL COMPANY |
发明人 |
HOOTS, JOHN E.;CRUCIL, GUY A.;JOHNSON, ELLEN L. |
分类号 |
C23F11/08;(IPC1-7):C23F11/167 |
主分类号 |
C23F11/08 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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