Solvent extraction of niobium(V) and tantalum(V) from fluorometallate acid solutions

被引：20
|
作者：
Mayorov, VG [1 ]
Nikolaev, AI [1 ]
机构：
[1] RUSSIAN ACAD SCI,KOLA SCI CTR,INST CHEM & TECHNOL RARE ELEMENTS & MINERAL RAW M,APATITY 184200,RUSSIA
来源：
HYDROMETALLURGY | 1996年 / 41卷 / 01期
关键词：
D O I：
10.1016/0304-386X(95)00018-C
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
The addition of Ti and Si to fluoride solutions containing no other mineral acids improves Nh and Ta extraction markedly. According to their effect on Nb extraction these fluorometallate and mineral acids can be arranged in the following order: H2SiF6 greater than or equal to HC1 > H2TiOF4 greater than or equal to H2SO4 >> HF. Solvent extraction from fluorotitanium solution was used to show the possibility of producing pure Nb and Ta compounds.
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收藏
页码：71 / 78
页数：8
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