Patents
Sitemap › C22 - Metallurgy; Ferrous or non-ferrous alloys; Treatment of alloys or non-ferrous metals › C22B - Production or refining of metals; Pretreatment of raw materials › C22B 3 - Extraction of metal compounds from ores or concentrates by wet processes
Patents for C22B 3 - Extraction of metal compounds from ores or concentrates by wet processes (16,429)
12/1980
12/23/1980US4241029 Hydroxyquinoline
12/23/1980US4241027 Reductive stripping process for the recovery of either or both uranium and vanadium
12/23/1980US4240981 Increasing proportion of anti isomer by chelation with nickel compound
12/23/1980US4240826 Process for the recovery of arsenic as a zinc arsenate and its _utilization in the purification of zinc plant electrolytes
12/23/1980CA1092084A1 Method and a reagent mixture for removing metal ions from an aqueous solution by means of liquid-liquid extraction
12/23/1980CA1091936A1 Iron removal from solutions
12/16/1980US4239699 Sulfonamidophenols, metal complexes thereof, and solutions containing such compounds for use in extraction of metal values
12/16/1980CA1091448A1 Ion exchange process for the purification of base metal electrolyte solutions
12/09/1980CA1091042A1 Solvent-extraction process for recovery and separation of metal values
12/09/1980CA1091040A1 Method of recovering metals out of soot originating from the combustion of oil
12/09/1980CA1091038A1 Cobalt stripping process
12/09/1980CA1091037A1 Liquid ion exchange process for the recovery of copper and nickel
12/09/1980CA1091035A1 Slimes treatment process
12/02/1980US4237062 Sulfonylthiosemicarbazides, metal complexes thereof, and solutions containing such compounds for use in extraction of metal values
12/02/1980US4236981 Electrolysis of nickle chloride solution to recover nickle of high purity at the cathode
11/1980
11/27/1980WO1980002554A1 Method for recovering molybdenum from tungsten solutions
11/25/1980US4235713 Process for the elimination of accumulated iron in organic phases of fluid-fluid extraction that contain di-2-ethyl-hexyl phosphoric acid
11/25/1980CA1090145A1 Extraction recovery of certain metal values
11/25/1980CA1090143A1 Method of recovering zinc from a material containing zinc and iron
11/25/1980CA1090141A1 Method for recovering silver and gold in solid silver or gold bearing matter
11/18/1980US4234546 Dioxime complexing agent
11/18/1980CA1089902A1 Matte smelting
11/12/1980EP0018511A1 Reactive filling substance having exchange properties
11/11/1980US4233273 Selective extraction of iron and aluminum from acidic solutions
11/11/1980CA1089382A1 Oxidation of ferrous salt solutions
11/04/1980US4231994 Separation of zirconium from hafnium by solvent extraction
11/04/1980US4231993 Recovery of metal values from lead smelter matte
11/04/1980US4231888 Composition used for extracting copper from aqueous copper salts
11/04/1980US4231868 With a dewatering aid comprising n-substituted sulfosuccinamate
11/04/1980CA1088726A1 Carbonate leaching of uranium
10/1980
10/30/1980WO1980002281A1 A process for precipitating heavy metals from wastewater
10/30/1980WO1980002235A1 A method and an apparatus for gathering valuable floating,dissolved and suspended substances from sea water
10/29/1980EP0018340A1 An offshore plant for recovery of valuable floating, dissolved and suspended materials from sea water
10/29/1980EP0018259A1 Carbonates carrying cyclic carbonate groups, process for their preparation and their use in the extraction of metals starting from aqueous solutions
10/29/1980EP0018102A1 Functionalised inorganic oxide products and their use in the removal of heavy metals, transition metals and actinide metals from solution
10/28/1980US4230487 Method of selectively bringing into solution the non-ferrous metals contained in sulphurized ores and concentrates
10/21/1980US4229270 Process for the recovery of metal values from anode slimes
10/21/1980US4229212 Using an organonitrile as stabilizer
10/14/1980US4228091 Removal of nickel from cobalt and manganese
10/14/1980US4228001 Folded moving bed ion exchange apparatus and method
10/14/1980CA1087397A1 Scrubbing of ammonia from liquid ion exchange reagents
10/07/1980US4226791 Method and a reagent mixture for removing metal ions from an aqueous solution by means of liquid-liquid extraction
10/07/1980CA1087133A1 Solid-liquid separation of laterite slurries
10/07/1980CA1086963A1 Process for the recovery of non-ferrous metals from acidic hydrometallurgical leach liquors with a chelate exchange resin
10/07/1980CA1086959A1 Solvent extraction of copper values using dihydroxy azoarenes
09/1980
09/30/1980US4225563 Process and apparatus for continuous leaching of ores
09/23/1980US4224287 Shearing clay or mineral, activation, hydrochloric acid leaching, extraction, crystallization, decomposition
09/23/1980US4224122 Recovery of non-ferrous metals by thermal treatment of solutions containing non-ferrous and iron sulphates
09/23/1980US4223948 Process for the reduction of competitive oxidant consuming reactions in the solution mining of a mineral
09/23/1980CA1086076A1 Process for the elimination of accumulated iron in organic phases of fluid-fluid extraction that contain di-2-ethyl-hexyl phosphoric acid
09/23/1980CA1086075A1 Reductive leach of oxidic mixtures
09/23/1980CA1086070A1 Separation and purification of platinum and palladium
09/23/1980CA1086069A1 Recovery and purification of iridium
09/23/1980CA1086068A1 Process for the separation of metals
09/16/1980US4222892 Process for preparing oxine impregnated-activated charcoal
09/16/1980US4222832 Cascading electrolyte bleed streams
09/16/1980CA1085623A2 Thin layer leaching method and apparatus
09/16/1980CA1085622A1 Thin layer leaching method and apparatus
09/16/1980CA1085619A1 Method of selectively recovering molybdenum from aqueous solutions thereof
09/16/1980CA1085592A1 Countercurrent decantation
09/09/1980US4221765 Purification of nickel chloride solutions
09/09/1980US4221658 Effecting liquid-liquid contact
09/09/1980CA1085284A1 Forced draft burner
09/09/1980CA1085172A1 Flotation process
09/02/1980US4220726 Polystyrene or copolymer; complexing
09/02/1980US4220627 Process for the treatment of raw materials containing arsenic and metal
09/02/1980CA1084718A1 Separation of nickel from cobalt with cyclic ketones
09/02/1980CA1084717A1 Separation and recovery of cobalt and nickel from aqueous solutions thereof
08/1980
08/26/1980US4219416 Process for recovering molybdenum and tungsten from mining wastewater
08/26/1980US4219354 Hydrometallurgical process for the treatment of oxides and ferrites which contain iron and other metals
08/26/1980CA1084505A1 Certain sulfonamidoquinolines, metal complexes thereof, and solutions containing such sulfonamidoquinolines and metal complexes
08/26/1980CA1084276A1 Decomposition leach of sulfide ores with chlorine and oxygen
08/20/1980EP0014629A1 Process for the recovery of ruthenium present in an aqueous nitric solution and application of this process to a nitric solution obtained by dissolution of irradiated nuclear fuel elements
08/20/1980EP0014557A1 Process for precipitating metal values from organic media
08/20/1980EP0014553A1 Process for purifying rare-earth compositions
08/19/1980US4218311 Fluid flow of dispersion through one of more coalescers
08/19/1980CA1083855A1 Rhodium from hydroformylation still heels
08/19/1980CA1083830A1 Ion exchange treatment of zinc values
08/19/1980CA1083828A1 Extraction of copper values from aqueous solutions with hydroxy-oximes
08/19/1980CA1083825A1 Process for concentration of titanium ore
08/12/1980US4217235 Process for the selective extraction of metal cations from aqueous solutions thereof and compositions
08/12/1980CA1083742A1 Stabilized mannich-base substituted water-in-oil polymer dispersions
08/12/1980CA1083358A1 Process for the recovery and purification of germanium from zinc ores
08/07/1980WO1980001577A1 Resist printing process and means for its application
08/07/1980WO1980001563A1 Recuperation of cyanides from rising solutions of cyanidric processes for electrodeposition of metals
07/1980
07/29/1980US4215219 Reagents from phenolic and 8-hydroxyquinolinic aldehyde oximes
07/29/1980US4214901 Hydrometallurgical refining of nickeliferous sulfides
07/29/1980US4214900 Production of nonferrous metals with low selenium contents
07/29/1980CA1082467A1 Method of recovering non-ferrous metals from sulphidic materials
07/22/1980US4213600 Spent photographic processing solutions
07/22/1980CA1082376A1 Treatment of liquids containing complexed heavy metals and complexing agents
07/15/1980US4212849 Simultaneous extraction and recovery of uranium and vanadium from wet process acids
07/15/1980CA1081471A1 Pressure leaching of sulfides
07/15/1980CA1081469A1 Sodium sulfide leach process
07/08/1980US4211753 Iron hydroxide ammonium molybdate complex
07/08/1980CA1080979A1 Method for precipitating metal cement from a solution mixed with a precipitant
07/01/1980US4210759 Stripping metal values from hydrocarbon solvents
07/01/1980US4210625 Process for separating cobalt and nickel by solvent extraction
07/01/1980CA1080486A1 Rehabilitation of zinc electrolytic metallurgy residues by recovery of contained metals
07/01/1980CA1080485A1 Method and apparatus for carrying out wet metallurgical processes
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