Method for preventing corrosion in aqueous systems
    1.
    发明授权
    Method for preventing corrosion in aqueous systems 失效
    防止水性体系腐蚀的方法

    公开(公告)号:US4744949A

    公开(公告)日:1988-05-17

    申请号:US73369

    申请日:1987-07-06

    IPC分类号: C23F11/08 C23F11/167

    CPC分类号: C23F11/08

    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.

    摘要翻译: 一种抑制工业冷却水中腐蚀的方法,其含有硬度至少为6.5的pH,包括使用能够在碱性水溶液环境中抑制腐蚀的水溶性无机磷酸盐和丙烯酸和某些取代的丙烯酰胺的共聚物或三元共聚物 如叔丁基丙烯酰胺。 能够在碱性环境中抑制腐蚀的水溶性有机膦酸酯可以用作磷酸盐的辅助剂。