119400 ⎘
Obtaining zinc or zinc oxide Obtaining zinc otherwise than by distilling
Sub-classes:ENERGY EFFICIENT SALT-FREE RECOVERY OF METAL FROM DROSS
#2TREATED GEOTHERMAL BRINE COMPOSITIONS WITH REDUCED CONCENTRATIONS OF SILICA, IRON AND MANGANESE
#3LOW TEMPERATURE REDUCTION OF METAL OXIDES
#4SYSTEM FOR PREPARING NEW ENERGY NI-CO-MN RAW MATERIAL FROM LATERITE NICKEL ORE
#5Process for Transition Metal Oxide Reduction
#6METHOD FOR RECOVERING IRON AND VALUABLE METALS FROM ELECTRIC ARC FURNACE DUST
#7Environmentally-Friendly Compositions and Methods for Extracting Minerals and Metals from Ore
#8AUTOCLAVE AND PRESSURE OXIDATION METHOD
#9ZINC RECOVERY METHOD
#10Process for transition metal oxide reduction
#11ENERGY EFFICIENT SALT-FREE RECOVERY OF METAL FROM DROSS
#12Low temperature reduction of metal oxides
#13METHOD FOR TREATING ALLOY
#14Method of inhibiting extractant degradation by controlling extractive capacity and preventing direct degradation
#15Method for inhibiting extractant degradation of DSX process through metal extraction control
#16Method for inhibiting extractant degradation of DSX process through manganese extraction control
#17Treated geothermal brine compositions with reduced concentrations of silica, iron and manganese
#18Environmentally-friendly compositions and methods for extracting minerals and metals from ore
#19ENERGY EFFICIENT SALT-FREE RECOVERY OF METAL FROM DROSS
#20METHOD FOR EXTRACTING METALS FROM CONCENTRATED SULPHURATED MINERALS CONTAINING METALS BY DIRECT REDUCTION WITH REGENERATION AND RECYCLING OF THE REDUCING AGENT, IRON, AND OF THE FLUX, SODIUM CARBONATE
#21Process for recovering value metals from ore
#22Rotation-suspension smelting method, a burner and a metallurgical equipment
#23ZINC PRODUCTION METHOD USING ELECTRIC FURNACE DUST AS RAW MATERIAL
#24Carbothermal reduction reactor system, components thereof, and methods of using same
#25Methods and systems using electrochemical cells for processing metal sulfate compounds from mine waste and sequestering CO
#26Method for bioleaching and solvent extraction with selective recovery of copper and zinc from polymetal concentrates of sulfides
#27System and method for the recovery of metal values from slags, drosses, and other metal-bearing materials
#28PROCESS FOR THE REMOVAL OF METAL OR IMPURITIES FROM ELECTRIC ARC FURNACE DUST
#29Method and apparatus for high temperature production of metals
#30Treated geothermal brine compositions with reduced concentrations of silica, iron and manganese
#31Processing of sulfate and/or sulfide-rich waste using CO-enriched gases to sequester CO, reduce environmental impacts including acid rock drainage and produce reaction products
#32Recovery of base metals from sulphide ores and concentrates
#33Compositions and methods of using a ketoxime in a metal solvent extraction reagent
#34Methods of metal extraction using oximes
#35Method and apparatus for high temperature production of metals
#36Energy Efficient Salt-Free Recovery Of Metal From Dross
#37Methods of metal extraction from ammoniacal solutions using oximes
#38Methods of metal extraction using oximes
#39Compositions and methods of using a ketoxime in a metal solvent
#40Metal solvent extraction reagents and use thereof
#41Electrolysis system and method
#42Ore Beneficiation Flotation Processes
#43Polymetallic-ore beneficiation and separation reagent, preparation method and use thereof
#44Synthesis of nanoparticles of metals and metal oxides using plant seed extract