Объектом исследования является композитный сорбент, модифицированный оксигидратом железа. Цель работы - синтез композитного неорганического сорбента и изучение его свойств. В работе проводился синтез нового неорганического сорбента с помощью полного факторного эксперимента. Был изучен механизм сорбции ионов фтора и хлора. Изучена устойчивость сорбента к агрессивным средам. Экспериментально определена емкость различных образцов сорбента. / In this paper, research arsenic-containing slimes of neutralization of waste electrolytes was carried out to selectively extract valuable metals (copper, nickel). The method of Atomic Absorption Spectroscopy (AAS), X-ray Diffraction (XRD) was applied. The chemical and phase analysis of multicomponent manmade waster was carried out, the leaching chelating reagent Trilon B was offered and its choice is reasonable. A review of modern methods of processing and laboratory studies were carried out. The processes of leaching of slimes by aqueous solution of Trilon B, purification of the obtained trilonate solution from metal-impurities and solvent regeneration were studied and optimized. Also, in the thesis the optimal scheme of processing of hydroxide sludges was chosen and the ecological and economic justification of the chosen technology of processing was represented.