Prevention of cracking and blistering of refinery steels by cyan

Details Prevention of cracking and blistering of refinery steels by cyan Prevention of cracking and blistering of refinery steels by cyan

1993-10-22

1995-10-17

Warden, Robert J.

Chemical apparatus and process disinfecting, deodorizing, preser

Process disinfecting, preserving, deodorizing, or sterilizing

Maintaining environment nondestructive to metal

208 47, 252390, 252394, 252401, 252405, 422 16, C23F 1114

Patent

active

054588499

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.

REFERENCES:
patent: 4009243 (1977-02-01), Weber et al.
patent: 4595723 (1986-06-01), Henson et al.
patent: 4900427 (1990-02-01), Weers et al.
patent: 4978366 (1990-12-01), Weers
patent: 5074991 (1991-12-01), Weers

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