Hardware-technological complex for disposal and waste deactivation TITANIUM PRODUCTION TO PRODUCE scandium concentrates

摘要

The proposed utility model relates to metallurgy, in particular to hydrometallurgy ferrous, rare, scattered and rare earth metals and can be used for complex processing, sterilization and decontamination waste titanium production - exhaust chloride melts chlorination process of titanium slag in salt chlorinators with recovery of valuable components and give various commercial products, including scandium concentrates. The objective of the proposed utility model is to improve the efficiency of the process of complex processing of titanium waste. The technical result that can be obtained with this is to increase the content of scandium to concentrate by increasing the degree of purification from impurities scandium. The problem is solved with the achievement of the above technical result of the proposed utility model - "hardware-technological complex for neutralization and deactivation of the titanium production waste to obtain scandium concentrates" comprising in its structure the following basic technical equipment (fig.3): bath of molten titanium hydroremoval exhaust chlorinators equipped with a delivery system therein nitrogen for stirring the resulting slurry gidrootstoynik, a circulation tank, having a Ser Inonii-dosing tanks with solutions of sodium sulfite and barium chloride, filter press-I, connected to the collecting tank bleached stock solutions, the reactor for the deposition amount of chromium hydroxides, scandium, titanium, zirconium and aluminum, the upper tubes are connected to tanks, feeders; sodium and high-molecular flocculant hydroxide, and the spout forms a connection with a filter-press-II to isolate the precipitate amount hydroxides of chromium, scandium, titanium, zirconium and aluminum, screw mixer-I, the inlet cone being connected to the trough of the filter press-I, hopper dust from ore-smelting melting titanium-containing concentrates and gidrootstoynika pipe discharge device, and the output is directed into the second screw mixer-II, connected to the hopper baseline magnesium-containing oxidic materials to tank- mash 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 utility model is that the output of clarified chloride solution with a filter press-II directed to the collecting container, trough a filter press-II has a connection through the discharge hatch heatable reactor-repulpatorom equipped with a stirrer and having a top cover tube, connected via stop valves to the tank-dispenser alkali solution of sodium hypochlorite, and the pipe bottom-drain reactor repulpatora it has a connection to a vacuum nutsche filter to which is connected feed line hydroxyechinenone solution sodium sida tank metering and water draining filtrate (purified from oksigratnogo precipitate chromate solution) of vykuumnogo filter press directed to collection vessel chromate solution, a vacuum nutsche filter has a connection through the discharge device with the charging port of the heated reactor with a stirrer, one of pipes on the cap through which the shut-off control valves connected to the dosing tank hydrochloric acid, and the other pipe has a feed cone centrate, lime paste and metallic magnesium, underflow of the reagent and is directed to the precipitation reactor with a stirrer, a top nozzle which is connected via a shut-off control valves to the tank dosing oxalic acid, and the lower drain pipe connected to a suction-filter-II, from which the overflow solution is connected to the collector, a suction filter-II connected to; supply line of oxalic acid solution from the tank through a metering and discharge device for the drying and calcining unit. As a result of technical solutions developed ensured neutralization and deactivation of the titanium production waste from radioactive and toxic metals and their transfer to the cured state, suitable for long-term storage of environmentally-safe. When this complex processing conditions provided by waste and selective recovery of scandium scandium to obtain concentrates; solutions of iron chloride (II) and manganese - for recycling iron and manganese compounds in the form of inorganic pigments and / or sorbents, and / or catalysts and / or individual compounds of iron and manganese; of sodium chromate, utilized to obtain an oxide and / or hydroxide of chromium, and / or various Kroon - inorganic pigments based on chromates of various metals (Zn, Cd, Pb, Ba, etc.).