Process for preparing ceric carboxylates

Chemistry of carbon compounds – Miscellaneous organic carbon compounds – C-metal

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2604292, 423 211, 423263, 556 16, C01F 1700, C11C 100

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active

045992010

ABSTRACT:
A process is provided for preparing ceric carboxylates which comprises oxidizing cerous carboxylate with aqueous hydrogen peroxide in a two-phase system comprising an aqueous phase of hydrogen peroxide having a pH of at least 6 and an organic phase comprising a solution of cerous carboxylate in a water-immiscible hydrocarbon solvent at a temperature at which the reaction proceeds but below the temperature of rapid decomposition of hydrogen peroxide, thereby converting cerous to ceric ion and forming a solution of ceric carboxylate in the hydrocarbon solvent; heating the reaction mixture at a temperature at which any ceric-hydrogen peroxide complexes present are decomposed; and separating the organic phase containing ceric carboxylate from the aqueous phase of the reaction mixture.

REFERENCES:
patent: 4231893 (1980-11-01), Woodhead
patent: 4285868 (1981-08-01), Heiba et al.
Comprehensive Inorganic Chemistry, vol. 4, Pergamon Press Ltd., 1973, pp. 97-101, Moeller, Therald, "The Lanthanides: Oxid. State +4".
J. Amer. Chem. Soc., vol. 93, No. 1. Jan. 13, 1971, pp. 995-999, Heiba, E. I., "Oxidation by Metal Salts. VIII. The Decomposition of Ceric Carboxylates in the Presence of Olefins and Arom. Hydrocarbons".

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