Method of cleaning a metal surface
    1.
    发明授权
    Method of cleaning a metal surface 失效
    清洁金属表面的方法

    公开(公告)号:US06348440B1

    公开(公告)日:2002-02-19

    申请号:US09630722

    申请日:2000-08-02

    IPC分类号: C11D732

    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.

    摘要翻译: 在用于从金属表面去除氧化铁垢的清洁溶液的存在下,控制高强度钢的腐蚀的方法和组合物。 向乙氧基化硫醇和/或氧化乙氧基化硫醇和1-羟基亚乙基-1,1-二膦酸的组合中加入苯并三唑或苯并咪唑化合物。 将组合物加入到水系统中,例如蒸汽发生系统,以从金属表面去除垢。