Metal ion complexes for use as scale inhibitors
    1.
    发明授权
    Metal ion complexes for use as scale inhibitors 失效
    用作阻垢剂的金属离子络合物

    公开(公告)号:US5057228A

    公开(公告)日:1991-10-15

    申请号:US509911

    申请日:1990-04-16

    IPC分类号: C02F5/14 C09K8/528

    CPC分类号: C09K8/528 C02F5/14

    摘要: Complex molecules of phosphonic acid ligands and transition metal ions are formed to be surprisingly good at inhibiting and even preventing scale in aqueous solutions, crude oils, aqueous production fluids, heat exchange media, etc. Ethylenediaminetetra(methylenephosphonic) acid (ENTMP) complexed with copper (II) is a particularly effective scale inhibitor over wide pH and temperature ranges. Other useful metal complex molecules include various alkyleneamino(alkylphosphonic) acids, or salts thereof, complexed with transition metals such as nickel (II), cobalt (II) and zinc (II), in addition to copper (II). The active complexes may be termed phosphonate metal complexes, or in some forms, phosphonic acid metal complexes.

    摘要翻译: 形成膦酸配体和过渡金属离子的复合分子在抑制甚至防止水溶液,原油,含水生产流体,热交换介质等中的结垢方面令人惊奇地很好。与铜络合的乙二胺四(亚甲基膦酸)酸(ENTMP) (II)在宽pH和温度范围内是特别有效的阻垢剂。 除了铜(II)之外,其它有用的金属络合物分子包括与过渡金属如镍(II),钴(II)和锌(II)络合的各种亚烷基氨基(烷基膦酸)或其盐。 活性配合物可以被称为膦酸金属络合物,或者以某些形式称为膦酸金属络合物。

    Metal ion complexes for use as scale inhibitors
    2.
    发明授权
    Metal ion complexes for use as scale inhibitors 失效
    用作阻垢剂的金属离子络合物

    公开(公告)号:US5207919A

    公开(公告)日:1993-05-04

    申请号:US776605

    申请日:1991-10-14

    IPC分类号: C02F5/14 C09K8/528

    CPC分类号: C09K8/528 C02F5/14

    摘要: Complex molecules of phosphonic acid ligands and transition metal ions are found to be surprisingly good at inhibiting and even preventing scale in aqueous solutions, crude oils, aqueous production fluids, heat exchange media, etc. Ethylenediaminetetra(methylenephosphonic) acid (ENTMP) complexed with copper (II) is a particularly effective scale inhibitor over wide pH and temperature ranges. Other useful metal complex molecules include various alkyleneamino(alkylphosphonic) acids, or salts thereof, complexed with transition metals such as nickel (II), cobalt (II), and zinc (II), in addition to copper (II). The active complexes may be termed phosphonate metal complexes, or in some forms, phosphonic acid metal complexes.

    摘要翻译: 发现膦酸配体和过渡金属离子的复合分子在抑制甚至防止水溶液,原油,含水生产流体,热交换介质等中的水垢方面令人惊奇地很好。与铜络合的乙二胺四(亚甲基膦酸)酸(ENTMP) (II)在宽pH和温度范围内是特别有效的阻垢剂。 除了铜(II)之外,其它有用的金属络合物分子包括与过渡金属如镍(II),钴(II)和锌(II)络合的各种亚烷基氨基(烷基膦酸)或其盐。 活性配合物可以被称为膦酸金属络合物,或者以某些形式称为膦酸金属络合物。