ION-EXCHANGE SEPARATION OF VANADIUM ZIRCONIUM TITANIUM MOLYBDENUM TUNGSTEN AND NIOBIUM

被引：15
|
作者：
FERRARO, TA
机构：
[1] Army Materials and Mechanics Research Center, Watertown, MA
来源：
TALANTA | 1969年 / 16卷 / 06期
关键词：
D O I：
10.1016/0039-9140(69)80097-4
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
Schemes for the separation of two or more of the elements vanadium, zirconium and/or titanium, molybdenum and tungsten from each other and from relatively large amounts of niobium have been developed, a strongly basic anion-exchange resin being used. Interference from niobium is avoided by using hydrofluoric acid to elute vanadium, zirconium, titanium and molybdenum. The application of coupled columns to improve the efficiency of separation of multicomponent mixtures is demonstrated. The use of an interval" equation defining the volume interval between successively eluted solutes is proposed for calculating the column length required for a particular separation. This equation is especially useful for determining the extent to which a column must be lengthened when overlapping occurs because of high column loading. © 1969."
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页码：669 / &
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