Corrosion inhibitors and processes for using the same
    1.
    发明授权
    Corrosion inhibitors and processes for using the same 失效
    腐蚀抑制剂及其使用方法

    公开(公告)号:US3989637A

    公开(公告)日:1976-11-02

    申请号:US583073

    申请日:1975-06-02

    摘要: Carboxylated lactones of the general formula ##EQU1## wherein R.sup.1 and R.sup.2 are individually selected from hydrogen, hydroxy, alkyl, hydroxyalkyl, --COOM, --CHOHCOOM, --CH.sub.2 COOM and a 1,3-dioxolane, 5-oxo group, and R.sup.3 is selected from hydrogen and --COOM, wherein M is hydrogen, alkali metal, ammonium or alkylammonium, provided that at least one of R.sup.1, R.sup.2 and R.sup.3 contain a carboxyl group, are disclosed as inhibiting the corrosion of metals by oxygen-bearing waters. The carboxylated lactones can be employed either alone or in combination with thiols, 1,2,3-triazoles, zinc salts, chromates, silicates, inorganic phosphates, molybdates, tannins, lignins, lignin sulfonates, calcium and magnesium salts and mixtures thereof.

    摘要翻译: 羧基化的通式为R 1 O =C≡CANGLE || R OO ANGLE CH | R3的内酯,其中R 1和R 2分别选自氢,羟基,烷基,羟基烷基,-COOM,-CHOHCOOM,-CH 2 COOM和1 三氧杂环戊烷,5-氧代基和R3选自氢和-COOM,其中M是氢,碱金属,铵或烷基铵,条件是R 1,R 2和R 3中的至少一个含羧基。 作为抑制含氧水中金属的腐蚀。 羧酸化的内酯可以单独使用或与硫醇,1,2,3-三唑,锌盐,铬酸盐,硅酸盐,无机磷酸盐,钼酸盐,单宁,木质素,木质素磺酸盐,钙和镁盐及其混合物组合使用。

    Method for corrosion inhibition
    2.
    发明授权
    Method for corrosion inhibition 失效
    腐蚀抑制方法

    公开(公告)号:US4209487A

    公开(公告)日:1980-06-24

    申请号:US677467

    申请日:1976-04-15

    IPC分类号: C23F11/167 C23F11/10

    CPC分类号: C23F11/1676

    摘要: 1,2-Ethane diphosphonates of the general formulaM.sub.2 O.sub.3 P--CH.sub.2 CH.sub.2 --PO.sub.3 M.sub.2wherein M is hydrogen, metal ion, ammonium, alkyl ammonium or mixtures thereof, are disclosed as inhibiting the corrosion of metals by oxygen-bearing waters. The 1,2-ethane diphosphonates can be employed either alone or in combination with certain thiols, 1,2,3-triazoles, zinc salts, chromates, silicates, inorganic phosphates, molybdates, tannins, lignins, lignin sulfonates, certain calcium and magnesium salts and mixtures thereof.

    摘要翻译: 公开了通式M 2 O 3 P-CH 2 CH 2 -PO 3 M 2的1,2-乙烷二膦酸盐,其中M为氢,金属离子,铵,烷基铵或其混合物,用于抑制含氧水中金属的腐蚀。 1,2-乙烷二膦酸盐可以单独使用或与某些硫醇,1,2,3-三唑,锌盐,铬酸盐,硅酸盐,无机磷酸盐,钼酸盐,单宁,木质素,木质素磺酸盐,某些钙和镁 盐及其混合物。