Prevention of cracking and blistering of refinery steels by cyanide scavenging in petroleum refinery processes
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United States of America Patent
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Oct 17, 1995
Issued Date -
N/A
app pub date -
Oct 22, 1993
filing date -
Dec 12, 1991
priority date (Note) -
Expired
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Abstract
Corrosion cracking and blistering of steels in contact with refinery streams containing cyanide is inhibited or prevented by treating said stream with a reaction product or products obtained by reacting morpholine and formaldehyde. The preferred corrosion cracking and blistering inhibiting treatment product is bis--morpholinyl-- methane.
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