Rhenium sorption from mineralized solutions by fibrous sorbents FIBAN
Keywords:
rhenium, fibrous ion exchanger, FIBAN, mineralized solutions, Langmuir equation, Freundlich equation, the breakthrough curves, full dynamic exchange capacity, degree of concentration.Abstract
The sorption characteristics of nitrogen-containing fibrous ion exchangers FIBAN A-6 and AK-
22 by sorption of rhenium from dilute solutions, simulating the composition of natural chloride-, sulfate-,
bicarbonate waters were studied. Isotherm of rhenium sorption by the ion exchanger FIBAN A-6
describes by the Freundlich equation with constant (0,153 ± 0,046), and the parameter n, equal to 0.66,
and isotherm of rhenium sorption by the ion exchanger FIBAN AK-22 – by the Langmuir equation with a
constant (8.4 ± 3.5) · 2.10 g/l. Half-time in the sorption of rhenium by the fibrous ion exchangers has not
exceeded 28 sec. Full dynamic exchange capacity of the resin for rhenium FIBAN AK-22 was 26.5 mg/g,
the degree of sorption concentration – 25.









