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V. M. Ivanov, R. A. Polyanskov
Sorption of
bismuth(III) ions by bismuthol i immobilized on SILICA GEL
Abstract
By
immobilizing of bismuthol I on Silochrom C-120 is received a sorbent for
extraction of heavy metals from solutions. The optimal conditions sorption of
bismuth(III) are found. In static conditions pH 0–4, time of phases contact for
achievment of balance 15 min, concentration of bismuth more 800 mcg/l, sorbent
mass 200 mg, volume of solution 10 ml, capacity of matrix 80 mmol/g (bismuthol)
or 230 mg/g (bismuth). The kinetic of sorbent aiging is studied. Bismuth
quantitative is desorbed of nitric acid.
Copyright (C) Chemistry Dept., Moscow State University, 2002
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