METHOD FOR THE MINERAL WASTE SPOIL HEAP RECLAIMING von SPASOVA, IRENA I, TSOTSORKOV, DIMITAR D, DIMITROV, VASIL I, GRUDEVA, VENETA I, GRUDEV, STOJAN N

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METHOD FOR BIOLOGICAL EXTRACTION OF ALUMINIUM FROM MINERAL RAW- MATERIALS von GRUDEV,STOJAN N, GENCHEV,FRATO N, MOCHEV,DIMITR JA, GENCHEV,DINKO G, GRUDEVA,VENETA I, PETROV,EMIL CH, RUSENOV,GEORGI A

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METHOD FOR THE MINERAL WASTE SPOIL HEAP RECLAIMING von SPASOVA, IRENA I, DIMITROV, VASIL I, TSOTSARKOV, DIMITAR D, GRUDEVA, VENETA I, GRUDEV, STOJAN N

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METHOD FOR BIOLOGICAL EXTRACTION OF NON- FERROUS METALS von GRUDEV,STOJAN N, GENCHEV,FRATO N, MOCHEV,DIMITR JA, KOSTOV,GEORGI JJ, GRUDEVA,VENETA I, PETROV,EMIL CH, STAREV,LJUBEN R, RUSENOV,GEORGI A

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METHOD FOR THERMAL ACTIVATION AND EXTRATING OF COPPER AND IRON DUMP METALLURGICAL SLAGS von GRUDEV,STOJAN N, GENCHEV,FRATO N, GAJJDARDZHIEV,STEFAN S

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METHOD OF GENERATION OF ALCALISING SOLUTION BY BIOLOGICAL ALCALISING OF MINERAL RAW MATERIALS WITH HIGH ACID ABSORBTION von GRUDEV,STOJAN N, GENCHEV,FRATO N, GAJJDARDZHIEV,STEFAN S

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METHOD FOR BIOCATALYTICAL DEIRONING OF MINERAL RAW MATERIALS von GRUDEV,STOJAN N, GENCHEV,FRATO N, GAJJDARDZHIEV,STEFAN S

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METHOD FOR EXTRACTION OF COPPER, SULFUR AND RARE METALS FROM WASTES AFTER FLOTATION OF COPPER- PYRITE ORES von GRUDEV,STOJAN N, GENCHEV,FRATO N, MOCHEV,DIMITR JA

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METHOD FOR THE EXTRACTION OF PRECIOUS METALS FROM OXIDE ORES von KARAGAOZOV, ANGEL K, SPASOVA, IRENA I, PENIN, BOJKO L, PISHINKOV, IVAN L, GENCHEV, FRATAO N, IVANOV, IVAN M, SAVOV, VALENTIN A, GRUDEVA, VENETA I, DAVIDOV, EVGENIJ R, GRUDEV, STOJAN N, STOJANOVA, ANA D

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