Production Department for complex processing and decontamination POLYMETALLIC WASTE extraction and concentration SCANDIUM

摘要

The proposed utility model relates to the field of metallurgy, in particular to the production departments integrated hydrometallurgical treatment, neutralization and deactivation polymetallic waste with extraction of valuable components - afford compounds of scandium and various commercial products, intermediates and concentrates. Utility model can be implemented on a titanium-magnesium plants for processing of waste products of titanium tetrachloride - exhaust molten salt chlorinators to the recovery and concentration of scandium. The object of the proposed utility model is to increase consumer properties of scandium concentrates obtained by increasing the degree of concentration of scandium. The technical result that can be obtained by using the proposed utility model is to increase the content of scandium oxide in commercial product offered for sale to consumers. The problem is solved with the achievement of the above technical result of the proposed technical solution - a useful model "manufacturing department for complex processing and deactivation polymetallic waste with extraction and concentration scandium", comprising in its composition: bath hydroremoval waste melts titanium chlorinators to feed it for mixing nitrogen system pulp gidrootstoynik, a circulation tank, having a connection to the tank-dosing solutions of sodium sulfite and chlorine and barium, filter press-I to isolate the insoluble residue from the slurry and precipitate barium / calcium sulfates holding tank; clear solutions, the reactor for the precipitation of hydroxides of chromium, scandium, and metal impurities, upper tubes of which are connected with the tanks, dosing the sodium hydroxide solution and a high molecular flocculant and the spout forms a connection with a filter-press-II for separating the precipitate of hydroxides of chromium, scandium and impurities other metals precipitate out of the trough of the filter press-I directed into a screw mixer-I, whose input is also connected to a dust hopper from ore-smelting melting titanium-containing concentrates and unloading, rig pipe gidrootstoynika full time devices, and the output is directed into the second screw mixer-II, connected to the hopper starting magnesium oxide-containing material, a dosing tank solution and / or slurry of magnesium chloride and from the shaping unit, the heat treatment and pressing of the composite mixture. The novelty of the proposed technical solution is that after the filter press-II set holding tank the clarified solution, the precipitate yield hydroxides, chromium, scandium, and other metal impurities from a trough of a filter press-II through the discharge hatch is directed into a heated reactor repulpator provided with stirrer, the cover of which there is a branch pipe connected via stop valves to the tank-dosing alkaline solution of sodium hypochlorite, underflow pipe-repulpatora reactor through the isolating valve is connected to a suction filter at dividing the pulp scandium-containing rare metals of the concentrate, plum clarified solution promvod and alkaline - of the dispenser with the suction filter is directed into a holding tank chromate solutions.