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- W2080269072 abstract "The partition of uranium (VI) and cobalt(II) between hydrochloric acid solutions and solutions of cyclohexyl- and benzylalkylamines in benzene has been investigated at different conditions. The effects of amine structure and organic solvent on the extractions have also been examined. It is found that cyclohexyl- and benzylalkyl tertiary amines are more efficient extractants for uranium and cobalt than secondary amines; a benzyl group is essential for promoting the extraction efficiency; the efficiency is reduced when the alkyl chain is branched and is strongly influenced by the kind of organic solvent used as diluent. On examine le partage de l'uranium(VI) et du cobalt(II) entre des solutions d'acide chlorhydrique et des solutions de cyclohexyl- et benzylalkylamines dans le benzéne, dans différentes conditions. On examine également l'influence de la structure de l'amine et du solvant organique sur les extractions. On constate que les amines tertiaires cyclohexyl- et benzylalcoyle sont de meilleurs réactifs d'extraction pour l'uranium et le cobalt que les amines secondaires. Le groupe benzyle est essentiel pour élever le rendement d'extraction, ce rendement diminue lorsqu'une chaine alcoyie est branchée et est fortement influencé par la nature du solvant organique utilisé comme diluant. Die Verteilung von Uran(VI) und Cobalt(II) zwischen salzsauren Lösungen und Lösungen von Cyclohexyl- und Benzyl-Alkylaminen in Benzol wurde unter verschiedenen Bedingungen untersucht. Der Einfluss der Aminstruktur und des organischen Lösungsmittels auf die Extraktionen wurden ebenfalls geprüft. Es wurde gefunden, dass tertiäre Cyclohexyl- und Benzyl-Alkylamine wirksamere Extraktionsmittel für Uran und Cobalt sind als sekundäre Amine. Eine Benzylgruppe ist wesentlich für die Verbesserung der Extraktion. Die Wirksamkeit der Extraktion wird verringert, wenn die Alkylkette verzweigt ist und wird stark beeinflusst durch die Art des organischen Lösungsmittels." @default.
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- W2080269072 date "1969-03-01" @default.
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- W2080269072 title "The extraction of uranium (vi) and cobalt(ii) from hydrochloric acid solutions by cyclohexyl- and benzyl alkylamines" @default.
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- W2080269072 doi "https://doi.org/10.1016/s0003-2670(00)89388-5" @default.
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