SOLVENT-EXTRACTION EQUILIBRIUM OF NICKEL FROM AMMONIACAL SOLUTIONS BY LIX-64N

被引:15
作者
PAZOS, C
CURIESES, JPS
COCA, J
机构
[1] Department of Chemical Engineering, University of Oviedo, 33071, Oviedo
关键词
D O I
10.1080/07366299108918071
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Equilibrium data for the solvent extraction of nickel from ammoniacal solutions by LIX 64N (10 vol%) dissolved in kerosene (15% aromatic content) are reported. The effect of NH3(aq) concentration, LIX 64N concentration, pH and temperature are shown. The stoichiometry of the Ni-active oxime in LIX 64N complex was ascertained by spectrophotometric studies. A mathematical mechanistic model was developed for the prediction of extraction distribution coefficients as a function of pH. The model predicts more accurate results at high pH values, as could be expected taking into consideration the assumptions made in developing the model.
引用
收藏
页码:569 / 591
页数:23
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