Extraction of zirconium(IV) from HCl solutions by mixtures of Aliquat-336 and Alamine-336 with TBP期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

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Extraction of zirconium(IV) from HCl solutions by mixtures of Aliquat-336 and Alamine-336 with TBP

Authors:	P K Mishra V Chakravortty K C Dash N R Das S N Bhattacharyya

Institution:	(1) Department of Chemistry, Utkal University, Vani Vihar, 751 004 Bhubaneswar, (India);(2) Nuclear Chemistry Division, Saha Institute of Nuclear Physics, Bidhan Nagar, 700 064 Calcutta, (India);(3) Present address: Radiochemistry Laboratory, Vernadsky Institute of Geochemistry and Analitical Chemistry, USSR Academy of Sciences, Moscow

Abstract:	Synergism has been observed in the extraction of zirconium(IV) by mixtures of Aliquat 336 or Alamine 336 with a neutral donor TBP from aq. HCl solutions. Although the extractant dependency for Zr(IV) is found to be nearly second power with respect to TBP alone, monosolvate is found to be formed for extraction by its mixture with Aliquat 336 or Almine 336. Quantitative extraction is observed with mixtures at a lower acidity than that with individual extractants. The species formed is tentatively assigned to be Q₂ZrCl₆. TBP, where $Q{\mathbf{ }} = {\mathbf{ }}R_3 {\mathbf{ }}\mathop N\limits^ + (CH_3 )$ for Aliquat 336 and $R_3 {\mathbf{ }}\mathop N\limits^ + H$ for Alamine 336.

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