Process for preventing corrosion of a metal in contact with a we

Compositions – Leather or fur treating

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Details

252390, 422 7, 422 12, 544224, 544237, 544242, 544264, 544283, 544336, 544353, 546176, 546329, 548378, C23F 1114

Patent

active

047403209

ABSTRACT:
Novel compositions are prepared by reacting hydrocarbyl substituted nitrogen-containing aromatic heterocyclic compounds such as 2,5-dimethylpyridine or 2,4,6-collidine, an aldehyde such as formaldehyde, or a ketone such as acetone, or mixtures thereof and an amine having a combined total of at least seven carbon, nitrogen, oxygen or sulfur atoms and at least one reactive amine hydrogen atom such as 1-dodecanamine in the presence of a suitable catalyst such as hydrogen chloride. These novel compositions, as well as their free amine forms are useful as oil and gas well corrosion inhibitors.

REFERENCES:
patent: 3025313 (1962-03-01), Gunderson
patent: 3077454 (1963-02-01), Monroe et al.
patent: 3932296 (1976-01-01), Byth
patent: 4294585 (1981-10-01), Sung
patent: 4323689 (1982-04-01), Vogel et al.
patent: 4446056 (1984-05-01), Thompson

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