Study of physicochemical properties and sorption capacity of developed composite sorbents KHR-OKS for use in the process of cyanidation and sorption

Abstract

Currently, the basic matrix structures for chemical modification and production of ion exchangers are styrene
and acrylic copolymers cross-linked with divinylbenzene. By adjusting the copolymerization conditions, it is
possible to obtain not only a given size, but also other parameters of the initial polymer granules important for
the synthesis of ion exchangers, primarily porosity. Copolymers of styrene with divinylbenzene are a universal
matrix for obtaining both main classes of ion exchangers - cation exchangers and anion exchangers. In this
regard, the search for new ion exchangers with a set of valuable indicators is of great practical interest. Therefore,
recent research in the field of creating competitive products is aimed at effective methods for modifying existing
ion exchangers in order to impart to them improved indicators of such basic properties as increased thermal and
chemical resistance, fairly good indicators of kinetic, sorption, and selective characteristics. This, in turn, is
solved by using a modern approach to obtaining products and issues of rational use of available initial resources
and secondary products of production.