发明名称 |
Stable compositions for use as corrosion inhibitors and method of corrosion inhibition in aqueous media. |
摘要 |
<p>A composition is disclosed comprising a stable aqueous solution of (i) water-soluble zinc compound and (ii) a particular type of water-soluble polymer composed essentially of moieties derived from acrylic acid and hydroxylated lower alkyl acrylates. The composition could additionally comprise (iii) orthophosphate. There is also disclosed a method for reducing corrosion of metal surfaces in contact with an aqueous medium prone to zinc precipitation which comprises adding to said aqueous medium an inhibitor comprising water-soluble zinc compound and copolymer of acrylic acid and hydroxylated lower alkyl acrylate. Water-soluble orthophosphate can also be used. There is also disclosed a method of inhibiting the formation of zinc scale forming conditions in which copolymer of acrylic acid and hydroxylated lower alkyl acrylate is used as inhibitor.</p> |
申请公布号 |
EP0017373(A1) |
申请公布日期 |
1980.10.15 |
申请号 |
EP19800300811 |
申请日期 |
1980.03.18 |
申请人 |
BETZ EUROPE, INC. |
发明人 |
GEIGER, GARY EDWIN;MAY, ROGER CLETUS |
分类号 |
C23F11/08;(IPC1-7):23F11/08 |
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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