VERFAHREN ZUR GEWINNUNG VON SELTENMETALLEN AUS DEN VERBRENNUNGSRUECKSTAENDEN VON SELTENMETALLHALTIGEN KOHLEN, INSBESONDERE BRAUNKOHLEN, DURCH DIGERIEREN
The invention relates to a method for recovering rare metals from the combustion residues of various coals, in particular brown coals. The recovery is performed by digestion, more particularly by aqueous and/or dilute alkaline and/or dilute acidic digestion, where two or three of these steps can be...
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| creator | MATYAS,BELA,-BERGBAU LEFFLER,JANOS KASZANITZKY,FERENC,-GEOL SOLYMOS,ANDRAS,-BERGBAU GERBER,PAL,-GEOL.DR PANTO,GYOERGY,DR |
| description | The invention relates to a method for recovering rare metals from the combustion residues of various coals, in particular brown coals. The recovery is performed by digestion, more particularly by aqueous and/or dilute alkaline and/or dilute acidic digestion, where two or three of these steps can be combined in any desired order or they may be carried out separately. During digestion the concentration of the solution is monitored and the subsequent digestion steps are terminated at a desired concentration. The solid and liquid phase are then separated and the rare metals are isolated from the liquid phase while the solid phase, optionally after neutralization and/or washing can be utilized for example as a source of energy. |
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The recovery is performed by digestion, more particularly by aqueous and/or dilute alkaline and/or dilute acidic digestion, where two or three of these steps can be combined in any desired order or they may be carried out separately. During digestion the concentration of the solution is monitored and the subsequent digestion steps are terminated at a desired concentration. 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| subjects | CHEMISTRY COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F FERROUS OR NON-FERROUS ALLOYS INORGANIC CHEMISTRY MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLIDMATERIALS OR FLUIDS METALLURGY PERFORMING OPERATIONS PRETREATMENT OF RAW MATERIALS PRODUCTION AND REFINING OF METALS SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATICTABLES OR JIGS SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATICTABLES OR JIGS TRANSPORTING TREATMENT OF ALLOYS OR NON-FERROUS METALS |
| title | VERFAHREN ZUR GEWINNUNG VON SELTENMETALLEN AUS DEN VERBRENNUNGSRUECKSTAENDEN VON SELTENMETALLHALTIGEN KOHLEN, INSBESONDERE BRAUNKOHLEN, DURCH DIGERIEREN |
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