Method of oxidizing a polyvalent metal

Details Method of oxidizing a polyvalent metal Method of oxidizing a polyvalent metal

1979-12-26

1982-05-18

Sneed, Helen M. S.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

75117, 134 13, 204108, 260429J, 2604381, 2604385R, 423140, 423224, 423242, 423245, C07F 1502

Patent

active

043304788

ABSTRACT:
Process of carrying out oxidation-reduction reactions such as oxidation of hydrogen sulfide to sulfur, in which a polyvalent metal chelate with a certain class of polycarboxylic acid is employed, the metal being reduced from a higher valence state to a lower valence state during reduction and back to the higher valence state by oxidation. The class of polycarboxylic acids are those which have a substituent which enhances acidity yet is stable toward oxidation.

REFERENCES:
patent: 2844551 (1958-07-01), Orthner et al.
patent: 3135706 (1964-06-01), Vandenberg
patent: 3208975 (1965-09-01), Vandenberg
patent: 3226320 (1965-12-01), Meuly et al.
patent: 3974197 (1976-08-01), Parliment
Martell et al., Chemistry of the Metal Chelate Compounds, Prentice Hall, N.Y., pp. 350 to 357 (1952).
Angew. Chem. Int. Ed. 14, p. 284 (1975).

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