THE INHIBITION OF IRON CORROSION BY ACETYLENIC ALCOHOLS IN ACID-SOLUTIONS AT HIGH-TEMPERATURE

被引：41

作者：

FIAUD, C

HARCH, A

MALLOUH, D

TZINMANN, M

机构：

[1] Laboratoire d'Etudes de la Corrosion, E.N.S.C.P., 75231 Paris Cedex 05

来源：

CORROSION SCIENCE | 1993年 / 35卷 / 5-8期

关键词：

D O I：

10.1016/0010-938X(93)90369-R

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The inhibitive behaviour of acetylenic alcohols in acid media (0.1 N H2SO4 and 1 N HCI) at high temperature was studied on iron by combining electrochemical tests up to 120-degrees-C and surfaces analyses. The inhibitors tested (octynol and propynol) proved to be efficient at high temperatures. They acted primarily by electrosorption on the iron, then through the formation of a dimer (in sulphuric medium) or a short-chain polymer (in hydrochloric medium), which remained stable at high temperature. A catalytic effect of the Cl- ions on the polymerization process was postulated.

引用

页码：1437 / 1444

页数：8

共 11 条

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[4]

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