Effect of Na+ ion on the dissolution of ferrocolumbite in autoclave
Effect of Na+ ion on the dissolution of ferrocolumbite in autoclave
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DOI：
10.1016/j.hydromet.2015.10.033
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发表时间：
2016-01-01
期刊：
影响因子：
4.7
通讯作者：
Suarez, Daniela S.
中科院分区：
文献类型：
--
作者：
Rodriguez, Mario H.;Rosales, Gustavo D.;Suarez, Daniela S.
在高压釜中研究了不同浸出介质对阿根廷圣路易斯省铌铁矿浸出的影响。采用HF-NaF或HF-Na 2C 2 O 4水溶液作为浸取剂，研究了温度、浸取介质种类和浓度对浸取效果的影响。结果表明，在一定的温度和试剂浓度条件下，加入NaF或Na_2C_2O_4，可显著提高铌矿和钽铌铌矿的浸出率，实现钽铌钽分离。(C)2015 Elsevier B. V.版权所有。
The effect of different leaching media on the dissolution of ferrocolumbite from the province of San Luis, Argentina, in an autoclave was investigated. The leaching agents used were aqueous solutions of HF-NaF or HF-Na2C2O4.The researched parameters were temperature and different types and concentrations of the leaching media. The obtained results show that the values of Nb and Ta extractions from ferrocolumbite with diluted HF are substantially modified when NaF or Na2C2O4 are added to the leaching medium, and separation of Ta from the other components present in the sample is successfully accomplished while working under certain conditions of temperature and reagent concentrations. (C) 2015 Elsevier B.V. All rights reserved.