ClassID:

119243

C22B3/10 - CPC Classification

Classification description:

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 Hydrochloric acid, other halogenated acids or salts thereof

Recent Application in this class:
#1
20260139342
2026-05-21

Method of Obtaining a Nickel Ore Concentrate, Method of Processing a Nickel Ore Concentrate, and Method of Recovering Materials Derived from Nickel Ore

#2
20260085382
2026-03-26

PROCESS OF PROVIDING TITANIUM DIOXIDE AND/OR VANADIUM OXIDE

#3
20260071343
2026-03-12

METHOD FOR PREPARING METALLIC MAGNESIUM AND INDUSTRIAL SILICON BY DECOMPOSING SERPENTINE WITH HYDROCHLORIC ACID

#4
20260062769
2026-03-05

METHOD OF LEACHING NICKEL FROM OXIDIZED ORE, METHOD OF MANUFACTURING NICKEL SULFATE, AND NICKEL-LEACHING AGENT

#5
20260062315
2026-03-05

METHOD OF LEACHING NICKEL FROM OXIDIZED ORE, METHOD OF MANUFACTURING NICKEL SULFATE, AND NICKEL-LEACHING AGENT

#6
20260035822
2026-02-05

ONE-STEP METHOD FOR ELECTROKINETIC URANIUM EXTRACTION AND SEPARATION FROM SANDSTONE-TYPE URANIUM DEPOSIT

#7
20260028695
2026-01-29

EXTRACTION AND RECOVERY OF METALS UNDER AMBIENT CONDITIONS

#8
20260015692
2026-01-15

ADVANCED SYSTEMS AND METHODS FOR LEACHING RARE EARTHS FROM ORE

#9
20250388996
2025-12-25

A PROCESS FOR TREATING IMPURITY CONTAINING STREAMS

#10
20250388512
2025-12-25

HIGH EFFICIENCY ACID-BASE LEACHING METHODS AND SYSTEMS

#11
20250323336
2025-10-16

SYSTEMS AND METHODS FOR RECYCLING ENERGY STORAGE DEVICES

#12
20250313919
2025-10-09

SYSTEMS AND METHODS TO EXTRACT CRITICAL MINERALS FROM PRE-CONCENTRATES PREPARED FROM ACID MINE DRAINAGE

#13
20250297394
2025-09-25

CYCLONIC ELECTROLYTIC RECOVERED REDUCED PLATINUM AND WATER ELECTROLYSIS METHOD USING THE SAME

#14
20250290214
2025-09-18

CYCLONE HIGH-SPEED ELECTROLYZER USING HIGH-SPEED TURBULENCE, METHOD FOR RECOVERING VALUABLE METALS USING THE SAME, AND VALUABLE METALS RECOVERED THEREFROM

#15
20250282633
2025-09-11

SEQUENTIAL HYDROMETALURGICAL RECOVERY OF METAL VALUES WITH SEQUESTERED CARBON

#16
20250276290
2025-09-04

APPARATUS AND METHOD FOR SEPARATION OF METAL-BEARING PHASES USING ELECTRODIALYSIS

#17
20250223666
2025-07-10

CONTINUOUS DISSOLUTION REACTOR

#18
20250197964
2025-06-19

PRECIOUS METALS RECOVERY

#19
20250179613
2025-06-05

PROCESSES AND METHODS FOR RECOVERING RARE EARTH ELEMENTS AND SCANDIUM FROM ACIDIC SOLUTIONS

#20
20250163541
2025-05-22

Method of Obtaining a Nickel Ore Concentrate, Method of Processing a Nickel Ore Concentrate, and Method of Recovering Materials Derived from Nickel Ore

#21
20250162976
2025-05-22

PLATINUM-GROUP METAL RECOVERY AGENT AND PLATINUM-GROUP METAL RECOVERY METHOD

#22
20250146099
2025-05-08

REMOVAL OF IMPURITIES CONTAINED IN IRON ORES

#23
20250115975
2025-04-10

METAL LEACHING PROCESS AND APPARATUS

#24
20250059625
2025-02-20

METHOD FOR EXTRACTING LITHIUM FROM CLAY AND OTHER MATERIALS IN A CHLORIDE SOLUTION USING INDIVIDUALIZED PRETREATMENTS

#25
20250051875
2025-02-13

HYDROGEN-BASED VALORISATION OF METAL-CONTAINING FEED MATERIALS TO EXTRACT METALS

#26
20240425994
2024-12-26

Carbon Capture Using Electrochemically-Produced Acid and Base

#27
20240376567
2024-11-14

PRECIOUS METALS RECOVERY

#28
20240309488
2024-09-19

METHOD FOR REDUCTIVE EXTRACTION OF IRIDIUM, RHODIUM AND/OR RUTHENIUM

#29
20240279831
2024-08-22

METHOD AND ELECTROCHEMICAL SYSTEM FOR RECYCLING SPENT LITHIUM-ION BATTERY

#30
20240279774
2024-08-22

COMPOSITIONS COMPRISING PROTEINS AND METHODS OF USE THEREOF FOR RARE EARTH ELEMENT SEPARATION

#31
20240279773
2024-08-22

Mixed rare earth concentrate mineral and suspended mineral phase transformation-clean leaching system and method thereof

#32
20240271247
2024-08-15

PREPARATION OF RARE EARTH METALS AND OTHER CHEMICALS FROM INDUSTRIAL WASTE COAL ASH

#33
20240218480
2024-07-04

RECOVERY OF METALS FROM METALLIC OR METAL-BEARING MATERIALS

#34
20240158249
2024-05-16

METHOD FOR PRODUCING INORGANIC SOLUTION, AND APPARATUS FOR PRODUCING INORGANIC SOLUTION

#35
20240076548
2024-03-07

METHOD FOR RECYCLING HYDROPHOBIC DEEP EUTECTIC SOLVENT AND NICKEL LEACHING METHOD

#36
20240043962
2024-02-08

Polymetallic nodule mineral processing

#37
20240035115
2024-02-01

METHOD FOR PRODUCING FERRONICKEL AND REMOVING CHROMIUM FROM NICKEL LATERITE ORE

#38
20240018624
2024-01-18

METHOD FOR SELECTIVE EXTRACTION OF GOLD BY NIACIN

#39
20240011123
2024-01-11

METHODS FOR REGENERATING LI AND NI FROM A SOLUTION

#40
20240002973
2024-01-04

INTEGRATION OF CARBON SEQUESTRATION WITH SELECTIVE HYDROMETALLURGICAL RECOVERY OF METAL VALUES

#41
20230416872
2023-12-28

PRECIOUS METALS RECOVERY

#42
20230416867
2023-12-28

GAS-ASSISTED MICROFLOW EXTRACTION (GAME) SYSTEM PATENT

#43
20230407503
2023-12-21

METHOD FOR RECOVERING NOBLE METAL FROM HETEROGENEOUS CATALYSTS CONTAINING NOBLE METAL

#44
20230381736
2023-11-30

COMPOSITE MATERIAL AND PROCESS FOR EXTRACTING LITHIUM USING THE SAME

#45
20230332318
2023-10-19

CIRCULAR ELECTROCHEMICAL METAL RECOVERY

#46
20230312364
2023-10-05

PROCESSING OF TITANIFEROUS ORES AND MINERALS

#47
20230295766
2023-09-21

METHOD FOR TREATING SULFIDE

#48
20230220516
2023-07-13

PROCESS FOR RECOVERING TITANIUM DIOXIDE

#49
20230192506
2023-06-22

HIGH PRESSURE CAUSTIC LEACH METHODS AND PROCESSES FOR RECOVERY OF SCANDIUM AND RARE-EARTH OXIDES

#50
20230151456
2023-05-18

Method for extracting rare earth elements from rare earth element hyperaccumulator

#51
20230133292
2023-05-04

HIGH-EFFICIENCY GOLD RECOVERY WITH CUCURBIT[6]URIL

#52
20230115288
2023-04-13

PROCESSING FOR THE EXTRACTION OF RARE EARTH ELEMENTS

#53
20230102673
2023-03-30

COMPOSITIONS AND SYSTEMS FOR SELECTIVE LITHIUM LEACHING AND RELATED METHODS

#54
20230098644
2023-03-30

SYSTEMS AND METHODS FOR LITHIUM EXTRACTION FROM SEDIMENTARY DEPOSITS

#55
20230094835
2023-03-30

Process for the recovery of zinc from zinc-bearing raw materials

#56
20230050044
2023-02-16

COMPREHENSIVE RECYCLING METHOD FOR WASTE LITHIUM IRON PHOSPHATE BATTERY

#57
20220411893
2022-12-29

PURIFICATION OF SCANDIUM CONCENTRATE

#58
20220356544
2022-11-10

Solid-Liquid-Solid Hydrometallurgical Process Optimized to Increase the Solubilization of Metals from Ores and/or Concentrates in Acid-Chloride Medium

#59
20220235435
2022-07-28

Sealed cobalt leaching device, reagent for cobalt leaching, method using device, use of method

#60
20220228237
2022-07-21

ADVANCED SYSTEMS AND METHODS FOR LEACHING RARE EARTHS FROM ORE

#61
20220195559
2022-06-23

Preparation of rare earth metals and other chemicals from industrial waste coal ash

#62
20220169521
2022-06-02

PROCESSING OF LITHIUM CONTAINING MATERIAL INCLUDING HCL SPARGE

#63
20220136080
2022-05-05

METHOD FOR RECOVERING GOLD AND COPPER FROM ELECTRONIC COMPONENTS

#64
20220045375
2022-02-10

Processing method of positive electrode active substance waste of lithium ion secondary battery

#65
20220042139
2022-02-10

Solid-liquid-solid method for the solubilisation of copper minerals and concentrates, independent of the redox potential and with low consumption of water and acid

#66
20220002838
2022-01-06

Solid-liquid-solid hydrometallurgical method for the solubilization of metals from sulfide copper minerals and/or concentrates

#67
20210310100
2021-10-07

PROCESS FOR METALLURGY AND SEPARATING RARE EARTH CONCENTRATE USING COMBINATION METHOD

#68
20210292179
2021-09-23

METHOD FOR PRODUCING LITHIUM CHLORIDE, AND LITHIUM CARBONATE

#69
20210254191
2021-08-19

Rare earth metal oxide process including extracting rare earth metal from acidic solution with an ionic liquid composition

#70
20210236956
2021-08-05

Microwave chemical method for totally extracting fluorine and rare earth from bastnaesite concentrate

#71
20210207240
2021-07-08

METHOD FOR LITHIUM PROCESSING

#72
20210180155
2021-06-17

Caustic conversion process

#73
20210156003
2021-05-27

RECOVERY OF METALS FROM PYRITE

#74
20210140012
2021-05-13

Process for the recovery of rare earths

#75
20210140009
2021-05-13

Processing rare earth sulphate solutions

#76
20210130926
2021-05-06

METHOD FOR RECOVERING NICKEL AND COBALT FROM NICKEL, IRON, AND COBALT-CONTAINING RAW MATERIAL

#77
20210047708
2021-02-18

Methods of selectively recovering palladium from a palladium-containing material

#78
20210032119
2021-02-04

Method for producing high-purity scandium oxide

#79
20200399738
2020-12-24

Method for clean metallurgy of molybdenum

#80
20200392602
2020-12-17

Process for multi-recycling, low-energy and high-purity extraction of lithium

#81
20200377971
2020-12-03

Method for preparing lead directly from lead-containing material by solid phase reaction

#82
20200325556
2020-10-15

Water balance in a chloride heap leach

#83
20200308669
2020-10-01

Method for separating rare earth element

#84
20200239978
2020-07-30

Systems and methods to chemically treat metal-bearing waste streams to recover value-added materials

#85
20200216929
2020-07-09

Method for separating copper from nickel and cobalt

#86
20200157653
2020-05-21

Extraction of iron (III) oxide from different iron-containing ores

#87
20200131600
2020-04-30

Method for preparing a leach feed matertial

#88
20190360069
2019-11-28

Ionic liquid solvents of perhalide type for metals and metal compounds

#89
20190352742
2019-11-21

Reactor systems for recovering metals, and related methods

#90
20190316223
2019-10-17

Process of extraction of a platinum group metal or gold from organic compositions with surfactants

#91
20190292630
2019-09-26

Method for recovering a minor metal and/or rare-earth metal

#92
20190292628
2019-09-26

Process for recovering gold from ores

#93
20190284659
2019-09-19

Precious metals recovery

#94
20190169038
2019-06-06

Process For The Conversion Of Lithium Phosphate Into A Low Phosphate Lithium Solution Suitable As Feedstock For The Production Of Saleable Lithium Products And For The Recovery Of Phosphorous For Re-Use In The Production Of Lithium Phosphate

#95
20190153562
2019-05-23

Preparation of rare earth metals and other chemicals from industrial waste coal ash

#96
20190017145
2019-01-17

Methods, materials and techniques for precious metal recovery

#97
20190017144
2019-01-17

Method for separating metal components

#98
20180371578
2018-12-27

Hydrometallurgical treatment process for extraction of precious, base and rare elements

#99
20180347007
2018-12-06

Process for the separation of iron in extraction of titanium in mixed chloride media

#100
20180298465
2018-10-18

Method for recovering gold from an ore or a refining intermediate containing gold

#101
20180245181
2018-08-30

Useful method for separating light rare earth elements and heavy rare earth elements

#102
20180209015
2018-07-26

Recovery of rare earths from concentrates containing fluorine

#103
20180195146
2018-07-12

Method of separating rare earth elements from rare earth polishing powder wastes

#104
20180142325
2018-05-24

Processing of lithium containing material

#105
20180111835
2018-04-26

Method for the production of amorphous silica with controlled specific surface area from magnesium silicate ore

#106
20180094336
2018-04-05

PROCESS FOR PREPARING METAL POWDERS AND METAL HYDRIDE POWDERS OF THE ELEMENTS TI, ZR, HF, V, NB, TA AND CR

#107
20180037974
2018-02-08

Method of producing titanium from titanium oxides through magnesium vapour reduction

#108
20180016153
2018-01-18

Processing of lithium containing material including HCl sparge

#109
20170369967
2017-12-28

Methods, materials and techniques for precious metal recovery

#110
20170368500
2017-12-28

Process for producing magnesium metal by dehydrating dihydrate magnesium chloride

#111
20170362681
2017-12-21

Methods for recovering metals from electronic waste, and related systems

#112
20170355609
2017-12-14

Process to produce magnesium compounds, and various by-products using sulfuric acid in a HCl recovery loop

#113
20170327927
2017-11-16

Method for leaching precious metal contained in decopperized anode slime

#114
20170291826
2017-10-12

Production of high strength hydrochloric acid from calcium chloride feed streams by crystallization

#115
20170260606
2017-09-14

Processing for the extraction of rare earth elements

#116
20170247777
2017-08-31

Process for recovering gold

#117
20170204497
2017-07-20

High purity SN-117M compositions and methods of preparing same

#118
20170198370
2017-07-13

Hydrometallurgical treatment of anode sludge

#119
20170183790
2017-06-29

PROCESS FOR PURE ALUMINUM PRODUCTION FROM ALUMINUM-BEARING MATERIALS

#120
20170159190
2017-06-08

Hydrometallurgical process to produce pure magnesium metal and various by-products

#121
20170145543
2017-05-25

Manganese Ore Beneficiation Process

#122
20170107596
2017-04-20

Method for extracting beryllium from bertrandite and phenakite mineral groups

#123
20170088964
2017-03-30

SYSTEM AND METHOD FOR RECOVERING METAL FROM METAL-CONTAINING WASTE LIQUID

#124
20170073794
2017-03-16

Recovery of Metals from Ores

#125
20170067135
2017-03-09

Methods for recovering metals from electronic waste, and related systems

#126
20170050863
2017-02-23

Method for preparing nanometer titanium dioxide

#127
20160376683
2016-12-29

Monazite and apatite paragenetic ore enrichment method

#128
20160355907
2016-12-08

Method for crushing hard tungsten carbide scraps

#129
20160319395
2016-11-03

Method of producing metal carbonate from an ultramafic rock material

#130
20160304988
2016-10-20

COPPER PROCESSING METHOD

#131
20160304987
2016-10-20

Processes for preparing alumina and various other products

#132
20160298248
2016-10-13

Recovery of copper from copper-containing sulfide ores

#133
20160298210
2016-10-13

Method and apparatus for secondary enrichment and recovery of germanium from low-grade lignite germanium concentrates with by microwave heating in vacuum

#134
20160298209
2016-10-13

Leach aid for metal recovery

#135
20160273073
2016-09-22

Method for recycling indium

#136
20160273070
2016-09-22

PROCESSES FOR PREPARING ALUMINA AND VARIOUS OTHER PRODUCTS

#137
20160273069
2016-09-22

Methods for purifying aluminium ions

#138
20160265082
2016-09-15

PROCESSES FOR TREATING MAGNESIUM-CONTAINING MATERIALS

#139
20160237524
2016-08-18

Precious metals recovery

#140
20160230250
2016-08-11

Sea water lithium-recovery device and lithium-recovery station using coastal-water-based lithium-adsorption equipment and shore-based lithium-isolation equipment, and lithium desorption device using aeration

#141
20160177417
2016-06-23

Method for extraction of beryllium from the minerals of genthelvite group when processing the raw Method for extraction of beryllium from minerals of bertrandite and phenakite groups when processing the raw minerals (ores, concentrates)

#142
20160153071
2016-06-02

Processes for recovering rare earth elements from aluminum-bearing materials

#143
20160153067
2016-06-02

PROCESSES FOR PREPARING TITANIUM OXIDE AND VARIOUS OTHER PRODUCTS

#144
20160145715
2016-05-26

Treatment process for recovery and separation of elements from liquors

#145
20160145714
2016-05-26

Treatment process for extraction of precious, base and rare elements

#146
20160138133
2016-05-19

Extraction and recovery of yttrium and rare earth elements

#147
20160115563
2016-04-28

Method for recovering metals

#148
20160102384
2016-04-14

Method of recovering acid and platinum group metal from leaching solution of spent catalyst

#149
20160102383
2016-04-14

System and method for the recovery of metal values from slags, drosses, and other metal-bearing materials

#150
20160060728
2016-03-03

Method for processing vanadium-titanium magnetite finished ores by using wet process

#151
20160047015
2016-02-18

Methods for extracting rare-earth metals and preparing gypsum plaster from phosphogypsum hemihydrate

#152
20160040268
2016-02-11

Methods for extracting rare-earth metals and preparing gypsum plaster from phosphogypsum hemihydrate

#153
20160032421
2016-02-04

PROCESSES FOR TREATING FLY ASHES

#154
20150354026
2015-12-10

Extraction of metals from metallic compounds

#155
20150344990
2015-12-03

Hydrometallurgical treatment process for extraction of metals from concentrates

#156
20150315677
2015-11-05

Process for the separation of iron in extraction of titanium in mixed chloride media

#157
20150307965
2015-10-29

Processes for recovering rare earth elements from aluminum-bearing materials

#158
20150252449
2015-09-10

Method for comprehensively recovering rare earth elements and fluorine element in a bastnaesite treatment process

#159
20150252448
2015-09-10

PRODUCTION OF HIGH-GRADE SYNTHETIC RUTILE FROM LOW-GRADE TITANIUM-BEARING ORES

#160
20150225808
2015-08-13

Processes for preparing alumina and magnesium chloride by HCl leaching of various materials

#161
20150218720
2015-08-06

PROCESS FOR TREATING MAGNESIUM-BEARING ORES

#162
20150218670
2015-08-06

Extraction solvent for extracting metallic elements, method for producing same, and method for recovering metallic elements

#163
20150211095
2015-07-30

Leaching method of rare-earth metals using hydrochloric acid from manganese nodule

#164
20150203936
2015-07-23

Method for producing alumina

#165
20150176103
2015-06-25

PRODUCTION OF TITANIUM DIOXIDE PIGMENTS

#166
20150175435
2015-06-25

Method for producing alumina

#167
20150159239
2015-06-11

Processes for preparing titanium oxide and various other products

#168
20150152523
2015-06-04

PROCESSING OF LITHIUM CONTAINING MATERIAL

#169
20150086450
2015-03-26

Method for adding starting material slurry and sulfuric acid to autoclave in high pressure acid leaching process and autoclave

#170
20150075328
2015-03-19

Processes for treating fly ashes

#171
20140373683
2014-12-25

Processes for recovering rare earth elements from various ores

#172
20140314642
2014-10-23

Method for extraction of beryllium from raw genthelvite (danalite, genthelvite, helvite) and bertrandite (chryosberl, euclase, bertrandite) mineral groups when processing the raw minerals (ores, concentrates)

#173
20140283652
2014-09-25

Rare earth element recovery method

#174
20140230604
2014-08-21

RECOVERY OF METALS FROM ORES

#175
20130283977
2013-10-31

Process for extraction of rare earth elements

#176
20130283976
2013-10-31

Chloride process for the leaching of gold

#177
20130220079
2013-08-29

Process for the recovery of gold from an ore in chloride medium with a nitrogen species

#178
20130125708
2013-05-23

Method for the extraction and recovery of vanadium

#179
20130089477
2013-04-11

Method and apparatus for recovering rare metal

#180
20130052104
2013-02-28

Process for the recovery of metals and hydrochloric acid

#181
20130052103
2013-02-28

Processes for extracting aluminum from aluminous ores

#182
20130014611
2013-01-17

Method for recovering tantalum

#183
20120328496
2012-12-27

Treatment of minerals

#184
20120308450
2012-12-06

Process of recovery of base metals from oxide ores

#185
20120237418
2012-09-20

Processes for extracting aluminum from aluminous ores

#186
20120227628
2012-09-13

Titaniumrich hydrochloric acid leaching residue, use thereof and preparation method of titanium dioxide

#187
20120207666
2012-08-16

Processing of manganous sulphate/dithionate liquors derived from manganese resource material

#188
20120125853
2012-05-24

Method for collecting metal

#189
20120103138
2012-05-03

Method of oxidative leaching of sulfide ores and/or concentrates

#190
20120090433
2012-04-19

ENHANCED RECOVERY OF GOLD

#191
20120090430
2012-04-19

Ionic liquid solvents of perhalide type for metals and metal compounds

#192
20120067170
2012-03-22

EXTRACTION OF GOLD FROM CATHODE ASSOCIATED GOLD CONCENTRATES

#193
20120067169
2012-03-22

METHOD FOR PROCESSING PRECIOUS METAL SOURCE MATERIALS

#194
20120058029
2012-03-08

Rhenium recovery

#195
20110314967
2011-12-29

Improving the recovery of precious metals from recalcitrant refractory ore

#196
20110286898
2011-11-24

Process for recovering ruthenium from used ruthenium oxide-comprising catalysts

#197
20110201095
2011-08-18

Method of treating a sulphide mineral

#198
20110174112
2011-07-21

Method for the recovery of nobel metals

#199
20110174111
2011-07-21

Method of mineral raw materials processing

#200
20110142736
2011-06-16

Process of recovery of base metals from oxide ores

#201
20110113927
2011-05-19

Separation reagent of platinum group metal, method for separating and recovering platinum group metal, and amide-containing tertiary amine compound

#202
20110088512
2011-04-21

Method of precious metal recovery

#203
20110083531
2011-04-14

SELECTIVE GOLD EXTRACTION FROM COPPER ANODE SLIME WITH AN ALCOHOL

#204
20110044869
2011-02-24

Processes for extracting aluminum and iron from aluminous ores

#205
20110028306
2011-02-03

PROCESS FOR THE RECOVERY OF PRECIOUS METALS FROM USED AND/OR DEFECTIVE CATALYTIC CARRIERS

#206
20110017020
2011-01-27

Method of recycling useful metal

#207
20100329970
2010-12-30

METHOD FOR RECOVERY OF COPPER, INDIUM, GALLIUM, AND SELENIUM

#208
20100296987
2010-11-25

Method for the Recovery of Gold from a Gold-Containing Solution

#209
20100224029
2010-09-09

Method for separation and recovery of noble metals

#210
20100213133
2010-08-26

Enrichment process for a PGM-metals containing stream

#211
20100206135
2010-08-19

Recycling of solids in oxidative pressure leaching of metals using halide ions

#212
20100150799
2010-06-17

Processes for extracting aluminum and iron from aluminous ores

#213
20100116093
2010-05-13

Method of recovering silver using anion-exchange resin

#214
20100098605
2010-04-22

Reduction of copper content in the molybdenite concentrate

#215
20100095807
2010-04-22

SEPARATION REAGENT OF PLATINUM GROUP METAL, METHOD FOR SEPARATING AND RECOVERING PLATINUM GROUP METAL, AND AMIDE-CONTAINING TERTIARY AMINE COMPOUND

#216
20100055011
2010-03-04

Method for recovering ruthenium

#217
20100031779
2010-02-11

Process for recovery of copper from copper-containing chloride media

#218
20100025259
2010-02-04

Precious metal recovery from solution

#219
20100018351
2010-01-28

RECYCLING OF SOLIDS IN OXIDATIVE PRESSURE LEACHING OF METALS USING HALIDE IONS

#220
20090241731
2009-10-01

System and method for extracting base metal values from oxide ores

#221
20090226365
2009-09-10

Agglomeration of titania

#222
20090178513
2009-07-16

Extractants for palladium and method of rapidly separating and recovering palladium using the same

#223
20090158894
2009-06-25

Method for recovering gold

#224
20090158891
2009-06-25

PROCESS FOR RECOVERING PLATINUM GROUP METALS, RHENIUM AND GOLD

#225
20090071840
2009-03-19

METHOD FOR EXTRACTING METALS FROM ORE

#226
20090056502
2009-03-05

HYDROMETALLURGICAL PROCESS FOR RECOVERY OF NICKEL AND COBALT

#227
20090013829
2009-01-15

Process for the recovery of value metals from base metal sulfide ores

#228
20080293836
2008-11-27

Method for the recovery of ruthenium from used ruthenium oxide-containing catalysts

#229
20080287282
2008-11-20

PROCESS FOR RECOVERY OF RUTHENIUM FROM A RUTHENIUM-CONTAINING SUPPORTED CATALYST MATERIAL

#230
20080286180
2008-11-20

Process for gold and silver recovery from a sulphide concentrate

#231
20080261477
2008-10-23

Method for collecting metal

#232
20080253945
2008-10-16

Production of synthetic rutile by continuous leaching

#233
20080190779
2008-08-14

Method for Recovering Indium

#234
20080159935
2008-07-03

Processes for treating aluminium dross residues

#235
20080145289
2008-06-19

Process for the treatment of electric and other furnace dusts and residues containing zinc oxides and zinc ferrites

#236
20080112864
2008-05-15

Gold and silver recovery from polymetallic sulfides by treatment with halogens

#237
20080110296
2008-05-15

Process for recovering platinum group metals, rhenium and gold

#238
20080078269
2008-04-03

Method for leaching gold

#239
20070295613
2007-12-27

Recovery of metals from oxidised metalliferous materials

#240
20070248513
2007-10-25

Method for recovering rhodium and silver from hydrochloric acid

#241
20070189941
2007-08-16

Kit For Recovery Of Metal

#242
20070166225
2007-07-19

Method for producing products from source materials by leaching with functional electrolytic water

#243
20070107551
2007-05-17

Kish-derived graphitic heat spreaders and foils

#244
20070088188
2007-04-19

Method of treatment, stabilization and heave control for chromite ore processing residues (COPR) and chromium contaminated soils

#245
20070014709
2007-01-18

Recovering metals from sulfidic materials

#246
20060182674
2006-08-17

Reduction of copper content in the molybdenite concentrate

#247
20060174727
2006-08-10

Method for the production of metal powders or metal hydride powders of the elements ti,zr, hf,v,nb.ta and cr

#248
20060147791
2006-07-06

Platinum recovery from fuel cell stacks

#249
20060144191
2006-07-06

Method for recovery of nonferrous, rare and precious metals from robust minerals

#250
20060011014
2006-01-19

Method for the recovery of metals using chloride leaching and extraction

#251
20050142051
2005-06-30

Process for the recovery of titanium in mixed chloride media

#252
20050123459
2005-06-09

Method of purifying niobium compound and/or tantalum compound

#253
20050118081
2005-06-02

Process for the recovery of value metals from base metal sulfide ores

#254
20050066774
2005-03-31

Process for mutual separation of platinum group metals

#255
18373975
2024-06-04

Leaching method of scheelite

#256
15821304
2020-05-12

Strategic metal and mineral element ore processing using mixing and oxidant treatment