Metal corrosion inhibitor for use in aqueous acid solutions

Details Metal corrosion inhibitor for use in aqueous acid solutions Metal corrosion inhibitor for use in aqueous acid solutions

1997-05-13

1998-08-11

McMahon, Timothy

Chemical apparatus and process disinfecting, deodorizing, preser

Process disinfecting, preserving, deodorizing, or sterilizing

Maintaining environment nondestructive to metal

166307, 422 7, 507232, 507934, 507939, C23F 1104

Patent

active

057924201

ABSTRACT:
The present invention provides an improved metal corrosion inhibitor for use in aqueous acid solutions which is relatively non-toxic and inexpensive. The corrosion inhibitor is a mixture comprised of oligomerized aromatic amines prepared by contacting the still bottoms residue produced in the distillation of quinoline from coal tar with oxygen in the presence of a catalyst.

REFERENCES:
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patent: 4552672 (1985-11-01), Walker
patent: 4698168 (1987-10-01), Briggs
patent: 5158693 (1992-10-01), Ramanarayanan et al.
patent: 5336441 (1994-08-01), Shah et al.
patent: 5366643 (1994-11-01), Walker
patent: 5441929 (1995-08-01), Walker

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