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5694206 
Journal Article 
Study of sorption properties of anion exchangers with long-chained cross-linking agents for tungsten hydrometallurgy 
Kholmogorov, AG; Kononova, ON; Kachin, SV; Kalyakina, OP; Pashkov, GL 
2000 
Yes 
Chinese Journal of Chemical Engineering
ISSN: 1004-9541 
Chemical Industry Press 
8 
3 
241-246 
English 
WOS:000089655100009 
The macroporous anion exchangers with long-chained cross-linking agents were investigated for the tungsten recovery from salt solutions. The physical-chemical characteristics of these sorbents were studied by means of sorption-desorption experiment as well as electron and IR-spectroscopy. The anion exchangers on the basis of macroporous copolymers of methylacrylate and divinyl-ester of diethyleneglycol or tetravinyl-ester of pentaerythritol possess the exchange capacity to tungsten 2-5 times greater than the porous anion exchangers on the basis of styrene and divinylbenzene, therefore they can be used for selective tungsten recovery from complex salt solutions. 
anion exchangers; macroporous structure; long-chained cross-linking agents; tungsten recovery; salt solution