发明名称 |
Method of cleaning a metal surface |
摘要 |
Methods and compositions for controlling corrosion of high strength steels in the presence of a cleaning solution for removing iron oxide scale from metal surfaces. A benzotriazole or benzimidazole compound is added to a combination of ethoxylated mercaptan and/or oxidized ethoxylated mercaptan and 1-hydroxyethylidene-1,1-diphosphonic acid. The composition is added to an aqueous system, such as a steam generating system, to remove scale from the metal surfaces.
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申请公布号 |
US6348440(B1) |
申请公布日期 |
2002.02.19 |
申请号 |
US20000630722 |
申请日期 |
2000.08.02 |
申请人 |
BETZDEARBORN INC. |
发明人 |
MESKERS, JR. DONALD A.;TIPPETT ROGER JOHN ARTHUR |
分类号 |
C11D1/00;C11D3/00;C11D3/28;C11D3/34;C11D3/36;C11D11/00;C23G1/06;C23G1/08;(IPC1-7):C11D7/32;C11D7/34;C11D7/36 |
主分类号 |
C11D1/00 |
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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