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EXTRACTION AND SEPARATION OF ZIRCONIUM AND HAFNIUM BY MEANS OF LIQUID ANIONIC EXCHANGERS IN A HYDROCHLORIC ACID MEDIUM. I. BEHAVIOR OF SOME PRIMARY, SECONDARY AND TERTIARY AMINES

E. Cerrai, C. Testa

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Abstract

Some long-chain primary, secondary, and tertiary amines were applied to the extraction and separation of zirconium and hafnium from solutions containing various concentrations of hydrochloric acid. The effect of temperature on extraction and separation factor was also investigated. Extraction is lower at lower temperatures but the separation factor is higher. Almost all the investigated products gave a good extraction of the two clements (zirconium is preferentially extracted) and some of them also significant separation factors. (auth)

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Some long-chain primary, secondary, and tertiary amines were applied to the extraction and separation of zirconium and hafnium from solutions containing various concentrations of hydrochloric acid. The effect of temperature on extraction and separation factor was also investigated. Extraction is lower at lower temperatures but the separation factor is higher. Almost all the investigated products gave a good extraction of the two clements (zirconium is preferentially extracted) and some of them also significant separation factors. (auth)

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Available abstract

Some long-chain primary, secondary, and tertiary amines were applied to the extraction and separation of zirconium and hafnium from solutions containing various concentrations of hydrochloric acid. The effect of temperature on extraction and separation factor was also investigated. Extraction is lower at lower temperatures but the separation factor is higher. Almost all the investigated products gave a good extraction of the two clements (zirconium is preferentially extracted) and some of them also significant separation factors. (auth)

Key concepts: Zirconium, Hafnium, Hydrochloric acid, Extraction (chemistry), Chemistry, Tertiary amine, Chromatography, Inorganic chemistry

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EXTRACTION AND SEPARATION OF ZIRCONIUM AND HAFNIUM BY MEANS OF LIQUID ANIONIC EXCHANGERS IN A HYDROCHLORIC ACID MEDIUM. I. BEHAVIOR OF SOME PRIMARY, SECONDARY AND TERTIARY AMINES — Research Paper | ScholarLens