Complex processing of fluorine- and alumina comprising wastes of aluminium production

Present article is devoted to complex processing of fluorine- and alumina comprising wastes of aluminium production. The composition and optimal parameters of soda-alkaline treatment of solution, obtained at sulfuric acid decomposition of fluorine- and alumina comprising wastes of aluminium production was defined. The conducted studies shown that from sulphate comprising solution at soda-alkaline treatment it is possible to obtain the alumina, fluoric salts and building materials. The flowsheet of complex processing of fluorine- and alumina comprising wastes was elaborated and proposed.