METHOD AND INSTRUMENT FOR MATERIAL DESORPTION Russian patent published in 2008 - IPC B01J49/00 C22B3/42 B01J47/10 

FIELD: chemistry.

SUBSTANCE: in invention claimed are devices and methods for continuous anti-current desorption of target materials. Device for substance desorption from ion-exchange resin which has sorbated on it admixtures and target materials, includes first and second chamber. Resin is supplied into first chamber, and is transported from first chamber to second chamber, and desorbing solution is supplied into second chamber, and is transported from second chamber into first chamber. Admixtures, which have less affinity with resin, than target material, can be desorbed from resin, and target material can be sorbed on resin from desorbing solution in first chamber. Flow of admixtures, which has high admixture concentration and relatively low concentration of target material, is released from first chamber through first outlet. Target material is desorbed from resin in second chamber, and enriched flow, which has low admixture concentration and relatively high concentration of target material, is released from low parts of first and/or second chamber through second outlet.

EFFECT: extension of arsenal of means for substance desorption from ion-exchanging resin.

41 cl, 6 dwg, 1 tbl, 5 ex