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

C - Chemistry, Metallurgy

07

D

C07D 213/22 (2006.01) C07D 215/04 (2006.01) C07D 217/02 (2006.01) C09K 8/54 (2006.01) C09K 8/74 (2006.01) C23F 11/04 (2006.01) C23F 11/14 (2006.01)

Patent

CA 2237561

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.

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