PRECIPITATION STRIPPING OF LANTHANUM AND NEODYMIUM

被引：8
作者：
ZIELINSKI, S
BUCA, M
SZCZEPANIK, A
机构：
[1] Institute of Inorganic Technology and Mineral Fertilizers, Technical University of Wroclaw, 50-370 Wroclaw
来源：
HYDROMETALLURGY | 1991年 / 26卷 / 02期
关键词：
D O I：
10.1016/0304-386X(91)90034-J
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
A study of the one-stage precipitation stripping process of lanthanum and neodymium is presented. Rare earth element-loaded solvent (M2EHPA-D2EHPA mixture in kerosene) was stripped with a sulphuric acid solution containing potassium sulphate, sodium sulphate or ammonium sulphate as a precipitating agent. Stripping and precipitation efficiencies were determined for various acid and added salt concentrations in the strip solution. The precipitates contained lanthanum or neodymium double sulphates as a main component. However, co-precipitated salts were also present which depending on the strip solution, were potassium hydrogensulphate, sodium sulphate or lanthanum/neodymium sulphate.
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页码：243 / 254
页数：12
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