| 摘要 |
The invention relates to an additive, the use thereof and a method for inhibiting corrosion on conveyors and transport devices for hydrocarbons in crude oil transport and processing, whereby an effective amount of an inhibitor is added, containing doubly alkoxylated quaternary compounds. Compounds of formula (1), where R<1>, R<2 >independently=groups of formula -(B)-(O-A)n-O-CO-R<5 >(2), or -(A-O)n-(C)-CO-O-R<5 >(3), R<3>=C1 to C30 alkyl or C2 to C30 alkenyl, R<4>=an organic group with 1 to 100 carbon atoms optionally containing heteroatoms, R<5>=C1 to C30 alkyl or C2 to C30 alkenyl; n=1 to 20, A=a C2 to C4 alkylene group, B=a C1 to C10 alkylene group, C=a C1 to C6 alkylene group and X=an anion, are used as corrosion inhibitors.
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