119242 ⎘
Extraction of metal compounds from ores or concentrates by wet processes by leaching in inorganic acid solutions, e.g. with acids generated ; in inorganic salt solutions other than ammonium salt solutions Sulfuric acid, other sulfurated acids or salts thereof
Autoclave apparatus used during high-pressure acid leaching process
#302Flash vessel and method for operating same
#303Method of leaching arsenic from ore comprising copper
#304Method of recovering rare earth elements from oxidized scrap of permanent magnet
#305Nickel and cobalt recovery using continuous ion exchange
#306Hydrometallurgical process for the recovery of tellurium from high lead bearing copper refinery anode slime
#307Production of high grade nickel product
#308Method for pre-treatment of gold-bearing oxide ores
#309Treatment of sulphidic materials
#310Method for leaching a sulphidic metal concentrate
#311Alkaline and acid pressure oxidation of precious metal-containing materials
#312Treatment of indium gallium alloys and recovery of indium and gallium
#313Heap leaching of manganese-containing ores
#314Process for extraction of rare earth elements
#315Slurry catalyst and slurry flakes valorization
#316Method for synthesizing rare earth metal extractant
#317Method for synthesizing rare earth metal extractant
#318PRODUCTION OF METAL PRODUCTS DIRECTLY FROM UNDERGROUND ORE DEPOSITS
#319METHOD FOR PRODUCING MERCURY-FREE ALKALINE-MANGANESE TYPE ELECTROLYZED MANGANESE DIOXIDE
#320Selective base metals leaching from laterite ores
#321Method for enhancing solid-liquid separation in conjunction with laterite leaching
#322RECLAIMING OF LEAD IN FORM OF HIGH PURITY LEAD COMPOUND FROM RECOVERED ELECTRODE PASTE SLIME OF DISMISSED LEAD BATTERIES AND/OR OF LEAD MINERALS
#323Method of Agglomeration
#324Alkaline and acid pressure oxidation of precious metal-containing materials
#325Method for extracting rare earth elements from phosphogypsum
#326METHOD FOR LEACHING CHALCOPYRITE CONCENTRATION
#327PROCESS FOR LIBERATING METALS USING DIRECT PRODUCTION OF LEACH GRADE ACID SOLUTIONS
#328Method for the selective acidic dezincification of steel scrap
#329HYDROMETALLURGICAL METHOD FOR THE REUSE OF SECONDARY ZINC OXIDES RICH IN FLUORIDE AND CHLORIDE
#330Process for the acid digestion of metal-containing compounds
#331Method of treating a sulphide mineral
#332Acid Recovery
#333Method for thiosulfate leaching of precious metal-containing materials
#334Process for Controlled Homogeneous Acid Leaching
#335ELECTROCHEMICAL PROCESS FOR THE RECOVERY OF METALLIC IRON AND SULFURIC ACID VALUES FROM IRON-RICH SULFATE WASTES, MINING RESIDUES AND PICKLING LIQUORS
#336Method of extracting Te and bismuth oxide and recovering byproducts
#337Recovering metal values from a metalliferrous material
#338PROCESS FOR THE RECOVERY OF PRECIOUS METALS FROM USED AND/OR DEFECTIVE CATALYTIC CARRIERS
#339High temperature leaching process
#340SYSTEM AND METHOD FOR CONVERSION OF MOLYBDENITE TO ONE OR MORE MOLYBDENUM OXIDES
#341PROCESS FOR RECOVERING METALS FROM RESINS
#342Method for Recovering Gold, Silver, Copper and Iron from Plasma-Caused Slag Containing Valuable Metals
#343Recovering Metal Values from a Leach Residue
#344Limonite and Saprolite Heap Leach Process
#345Method for concentration of gold in copper sulfide minerals
#346PRODUCTION OF METAL PRODUCTS DIRECTLY FROM UNDERGROUND ORE DEPOSITS
#347SYSTEM AND METHOD FOR SEPARATING TELLURIUM FROM CADMIUM WASTE
#348Method of processing copper arsenic compound
#349Production process of sulfide containing nickel and cobalt
#350Method for thiosulfate leaching of precious metal-containing materials
#351Process for extracting gold from gold-bearing ore
#352Method for thiosulfate leaching of precious metal-containing materials
#353Process for recovery of copper from copper-containing chloride media
#354Reduction of lime consumption when treating refractory gold ores or concentrates
#355Recovery of molybdenum from molybdenum bearing sulfide materials by bioleaching in the presence of iron
#356Processing of Metal Values from Concentrates
#357Metal extraction without cyanide
#358METHOD OF RECOVERING NOBLE METALS AND RECOVERING SYSTEM FOR NOBLE METALS
#359Process for liberating metals using direct production of leach grade acid solutions
#360Process for recovery of copper from copper-bearing material using pressure leaching, direct electrowinning and solvent/solution extraction
#361PROCESS FOR THE ACID DIGESTION OF METAL-CONTAINING COMPOUNDS
#362Process for mercury control during pressure oxidation
#363Process for controlling acid in sulfide pressure oxidation processes
#364Method for the recovery of valuable metals and arsenic from a solution
#365PROCESS FOR RECOVERY OF METAL VALUES FROM MATERIALS CONTAINING ARSENIC AND/OR ANTIMONY
#366Combined Leaching Process
#367Use of non-ionic surfactants in the production of metals
#368Method for the hydrometallurgical treatment of sulfide concentrate containing several valuable metals
#369Method for the treatment of copper-bearing materials
#370Titanium Intermediate Processing
#371Metal Extraction
#372System and method for conversion of molybdenite to one or more molybdenum oxides
#373Method for thiosulfate leaching of precious metal-containing materials
#374Use of surfactants in the production of metal
#375Recovery of metals from oxidised metalliferous materials
#376Method and apparatus for controlling metal separation
#377Thiosulphate Leach Process
#378Preparation of Zinc Chemicals from the Minor Flow of a Process
#379Process for uranium recovery using anion exchange resin
#380Method for recovering noble metals from metallic carrier catalytic device
#381Thiosulfate generation in situ in precious metal recovery
#382Hydrometallurgical process for the treatment of metal-bearing sulfide mineral concentrates
#383Titaniferous ore beneficiation
#384Method for thiosulfate leaching of precious metal-containing materials
#385Method for improving metals recovery using high temperature pressure leaching
#386Treatment of reclaim water for use in metals recovery
#387System and method for separating tellurium from cadmium waste
#388Heap leach
#389Production of titania
#390Method for recovery of zinc by countercurrent leaching
#391METHOD FOR PROCESSING ELEMENTAL SULFUR-BEARING MATERIALS USING HIGH TEMPERATURE PRESSURE LEACHING
#392Process for recovery of copper from copper-bearing material using pressure leaching, direct electrowinning and solvent/solution extraction
#393Method for processing sulfide minerals and concentrates
#394Reduction of lime consumption when treating refractor gold ores or concentrates
#395Leaching process for copper concentrates
#396Process to recover vanadium contained in acid solutions
#397Production of titania
#398Method for processing elemental sulfur-bearing materials using high temperature pressure leaching
#399Method for improving metals recovery using high temperature pressure leaching
#400Hydrometallurgical processing of manganese containing materials
#401Method for producing aqueous solution containing nickel or cobalt
#402Leaching method of scheelite