METHOD OF PREPARING BROWN COAL RAW MATERIAL TO HYDROMETALLURGICAL REFINING PROCESS

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1. Method of preparing brown coal raw material to hydro metallurgical conversion by separation of mineral components raw material from power carbon-containing components raw materials in process of burning of the last in furnace thermal, characterized in that separation of mineral components raw material is successively in stages, starting with the process of preparing raw material to combustion, at the first stage-after crushing Extraction raw material and of jigging first intermediate mineral product is sent to concentration table, on vtorometape -after classification of finely ground otsazhennogo coal second intermediate mineral product from lower drain is sent to concentration table, at the third stage-after concentration table third intermediate mineral product from lower drain is directed to flotation, at the fourth stage-after flotation of is obtained first the end product in form of collective concentrate heavy rare-earth metals and the second target foam product in form of sulfides of non-ferrous metals, at the fifth stage-after burning of power of carbon-containing components raw material in the form of enriched ground coal from upper classifier discharge third target product-ash-entrainment and fourth target product-ash-slag waste, after which the obtained desired products is subjected to selective hydro metallurgical conversion. 2. Method of according to Claim 1, characterized in that if necessary ash waste is subjected to wet magnetic separation to obtain fifth target product in the form of magnetic fraction and sixth target product in the form of non-magnetic fraction, which may be napravl