Compound, preparation and use

Details Compound, preparation and use Compound, preparation and use

1991-12-10

1993-11-02

Dees, Jose G.

Organic compounds -- part of the class 532-570 series

Organic compounds

Heavy metal containing

560100, 562467, C07F 306, C07C 6976, C07C 6511

Patent

active

052585328

ABSTRACT:
A fused ring compound having hydroxy, carboxylic acid and hydroxyalkyl substituent groups and the metal salts or complexes thereof. The hydroxyalkyl group is especially a hydroxymethyl group. The compound is prepared by reaction of the hydroxy carboxylic acid derivative with formaldehyde in an alkaline medium at a temperature of not more than 50.degree. C. The compounds, especially the metal salts or complexes thereof, can be used to provide corrosion inhibition of metals, for example iron.

REFERENCES:
patent: 3248422 (1966-04-01), Elslager et al.
patent: 4304707 (1982-12-01), Kuehn
patent: 4329381 (1982-05-01), Eschwey et al.
N. Kondekar et al., Condensation of 3-Hydroxy-2-naphthoic Acid with Formaldehyde, vol. 12, 1973, pp. 135-137, Industrial and Engineering Product Research Development.

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