发明名称 |
Process and composition for protecting chrome steel. |
摘要 |
<p>A composition and method for inhibiting the corrosion of steel containing greater than about 9% chromium in the presence of at least one mineral acid, especially at temperatures above 250 DEG F. The composition is made of a corrosion inhibitor selected from phenyl ketone, phenyl ketone with a quaternary salt of a nitrogen-containing heterocyclic aromatic compound, or cinnamaldehyde with a quaternary salt of a nitrogen-containing aromatic compound and an acid soluble metal from antimonium or bismuth.</p> |
申请公布号 |
EP0471400(A1) |
申请公布日期 |
1992.02.19 |
申请号 |
EP19910201955 |
申请日期 |
1991.07.26 |
申请人 |
PUMPTECH N.V.;COMPAGNIE DES SERVICES DOWELL SCHLUMBERGER |
发明人 |
JASINSKI, RAYMOND J.;FRENIER, WAYNE W. |
分类号 |
C09K8/54;C23F11/04;C23F11/10 |
主分类号 |
C09K8/54 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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