Invention Grant
US3661981A Corrosion inhibitors 失效
腐蚀抑制剂

Corrosion inhibitors
Abstract:
THIS SPECIFICATION DISCLOSES COMPOSITIONS AND METHODS FOR INHIBITING CORROSION NORMALLY CAUSED BY OIL WELL FLUIDS. THE COMPOSITIONS COMPRISE A MAJOR AMOUNT OF AN AMINE SALT WHEREIN THE AMINE IS

RNHCH2CH2CH2NH2

WHEREIN R IS SELECTED FROM THE GROUP CONSISTING OF ALIPHATIC AND CYCLOALIPHATIC HYDROCARBON RADICAL HAVING 12 TO 30 CARBON ATOMS AND THE ACID IS

HOOC-C(-R1)=C(-R2)-C(-R3)=C(-R4)-COOH

WHEREIN R1, R2, R3 AND R4 ARE SELECTED FROM THE GROUP CONSISTING OF CH3 AND H.
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