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    • 2. 发明授权
    • Water soluble corrosion inhibitors
    • 水溶性腐蚀抑制剂
    • US5322640A
    • 1994-06-21
    • US70598
    • 1993-06-01
    • Norman E. ByrneJohn D. Johnson
    • Norman E. ByrneJohn D. Johnson
    • C09K8/54C23F11/14C23F11/16C23F11/167
    • C09K8/54C23F11/149
    • This invention is a method for inhibiting corrosion in metallic flow lines containing hydrocarbon and/or aqueous fluids comprising adding to the fluid contained in the flow line a corrosion inhibiting amount of a water-soluble ampholytic substituted imidazoline having the formula: ##STR1## wherein R1 comprises a radical selected from the group consisting of hydrogen, alkyl, and aryl groups having 6 to 30 carbons; R2 comprises a radical selected from the group consisting of polyalkylene polyamines having from 2 to 16 carbon atoms, NH.sub.2, N(R.sub.4).sub.2, OH and SH; R.sub.3 is a radical selected from the group consisting of carboxylate, carbonate, sulfite, sulfate, phosphite, and phosphate; n is a number from 1 to 10; and, R4 comprises a branched or linear alkyl chain having a length of 1 to 8.
    • 本发明是一种用于抑制含有烃和/或含水流体的金属流动管线中的腐蚀的方法,包括向流化线中包含的流体中加入腐蚀抑制量的具有下式的水溶性两性取代的咪唑啉:其中R 1 包含选自氢,烷基和碳原子数为6〜30的芳基的基团; R2包含选自具有2至16个碳原子的聚亚烷基多胺,NH 2,N(R 4)2,OH和SH的基团; R3是选自羧酸根,碳酸根,亚硫酸根,硫酸根,亚磷酸根和磷酸根的基团; n是1至10的数字; 并且R 4包含长度为1至8的支链或直链烷基链。