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Usines de Melle SA
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Usines de Melle SA
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Priority claimed from FR44543Aexternal-prioritypatent/FR1477483A/en
Application filed by Usines de Melle SAfiledCriticalUsines de Melle SA
Publication of ES335026A1publicationCriticalpatent/ES335026A1/en
Organic Low-Molecular-Weight Compounds And Preparation Thereof
(AREA)
Abstract
Process for the preparation of a copper-based catalyst which is suitable, in particular, for the dehydrogenation of primary or secondary alcohols in aldehydes or in ketones respectively or also for the hydrogenation reactions in which copper-based catalysts are generally active, more particularly the hydrogenation of aldehydes or of saturated ketones in corresponding saturated alcohols or the hydrogenation of aldehydes or of unsaturated ketones in corresponding saturated or unsaturated alcohols, characterized in that an insoluble copper compound is precipitated by an alkaline reagent. of an aqueous solution of a water-soluble copper salt, in the presence of a catalyst support, the precipitate deposited on the support is washed, the moisture of the solid mixture is reduced, the latter is impregnated by means of a solution of a alkali metal chromate, and finally, the copper compound is reduced by means of hydrogen no, without previous cooking. (Machine-translation by Google Translate, not legally binding)
ES0335026A1965-12-311966-12-28Procedure for preparation of a copper-based catalyst. (Machine-translation by Google Translate, not legally binding)
ExpiredES335026A1
(en)
Procedure for the preparation of ethylene oxide by catalytic oxidation of a silver-based catalyst (Machine-translation by Google Translate, not legally binding)
Procedure for reduction of ferrous ions of the ferric ions present in peroxidation solutions of organic peroxides. (Machine-translation by Google Translate, not legally binding)