Method and composition for inhibiting the corrosion of metals

Details Method and composition for inhibiting the corrosion of metals Method and composition for inhibiting the corrosion of metals

1976-07-15

1978-01-31

Padgett, Benjamin R.

Compositions

Preservative agents

Anti-corrosion

21 25R, 21 27R, 423228, 423229, C09K 300

Patent

active

040714705

ABSTRACT:
A method and composition for inhibiting the corrosion of metals in contact with an acid-gas absorbing medium comprising adding a product of the reaction of (1) copper or a copper salt, a copper oxide or a copper sulfide and (2) sulfur or a sulfide and an oxidizing agent and (3) a monoalkanolamine (monoethanolamine). The reaction is carried out at from 21.degree. to about 100.degree. C for a period of time to produce a stable non-precipitating product, i.e., reacted for from 0.1 to about 20 hours. The product is added to a gas treating plant absorbent in an amount of at least 0.00002 pounds of copper and 0.0002 pounds of sulfur per pound of medium per day.

REFERENCES:
patent: 2559580 (1951-07-01), Alexandria
patent: 3349544 (1967-10-01), Arnold et al.
patent: 3951844 (1976-04-01), Mago
patent: 3959170 (1976-05-01), Mago et al.

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