Patents-Review.com
ClassID:

119259 ⎘

C22B3/20 - CPC Classification

Classification description:

Extraction of metal compounds from ores or concentrates by wet processes Treatment or purification of solutions, e.g. obtained by leaching

Sub-classes:
Recent Application in this class:
#1
20250382682
2025-12-18

METHODS OF OPERATING LITHIUM EXTRACTION PROCESSES, AND RELATED SYSTEMS

 #2
20250361584
2025-11-27

PURIFICATION OF TARGET MATERIAL FOR THE PRODUCTION OF RADIO-ISOTOPES

 #3
20250320578
2025-10-16

TREATED GEOTHERMAL BRINE COMPOSITIONS WITH REDUCED CONCENTRATIONS OF SILICA, IRON AND MANGANESE

 #4
20250146101
2025-05-08

SELECTIVE SOLUBILIZATION OF GANGUE FROM NICKEL SULFIDES USING BIOSOLVENTS

 #5
20250146100
2025-05-08

SELECTIVE SOLUBILIZATION OF GANGUE FROM NICKEL SULFIDES USING ORGANIC ACID SOLUTIONS

 #6
20250066873
2025-02-27

GEOTHERMALLY POWERED PYROMETALLURGICAL COPPER PRODUCTION

 #7
20250043391
2025-02-06

METHOD FOR RECOVERING LITHIUM FROM LITHIUM-SALT-CONTAINING AQUEOUS SOLUTION

 #8
20240425948
2024-12-26

EFFICIENT RECYCLING OF E-WASTE BY ENERGY LANDSCAPE INVERSION

 #9
20240336991
2024-10-10

PROCESS FOR LEACHING METAL SULFIDES WITH REAGENTS HAVING THIOCARBONYL FUNCTIONAL GROUPS

 #10
20240336990
2024-10-10

PROCESS FOR LEACHING METAL SULFIDES WITH REAGENTS HAVING THIOCARBONYL FUNCTIONAL GROUPS

 #11
20240279768
2024-08-22

SYSTEMS AND PROCESSES FOR RECOVERY OF HIGH-GRADE RARE EARTH CONCENTRATE FROM ACID MINE DRAINAGE

 #12
20240229191
2024-07-11

APPLICATION OF CUPROUS SULFIDE IN RECOVERY OF AU (III) FROM AQUEOUS SOLUTIONS

 #13
20240141456
2024-05-02

PROCESS FOR LEACHING METAL SULFIDES WITH REAGENTS HAVING THIOCARBONYL FUNCTIONAL GROUPS

 #14
20240132996
2024-04-25

Application of cuprous sulfide in recovery of Au (III) from aqueous solutions

 #15
20240117466
2024-04-11

METHOD OF SELECTIVELY LEACHING LITHIUM AND ALUMINUM FROM MIXED CARBONATE PRECIPITATE

 #16
20240068113
2024-02-29

METHODS FOR TREATING LITHIUM-CONTAINING MATERIALS

 #17
20230313338
2023-10-05

Method for obtaining concentrated brine of minimum impurity content from brine found in natural salt flats and salt marshes, said method having minimum environmental impact and maximum lithium recovery

 #18
20230193418
2023-06-22

SULPHIDE OXIDATION IN LEACHING OF MINERALS

 #19
20230134310
2023-05-04

System and method including multi-circuit solution extraction for recovery of metal values from metal-bearing materials

 #20
20230115288
2023-04-13

PROCESSING FOR THE EXTRACTION OF RARE EARTH ELEMENTS

 #21
20230080642
2023-03-16

METHODS FOR TREATING LITHIUM-CONTAINING MATERIALS

 #22
20230042034
2023-02-09

PROCESS FOR THE RECOVERY OF CATHODE MATERIALS IN THE RECYCLING OF BATTERIES

 #23
20230039988
2023-02-09

Rare earth enrichment process by contacting raw material with a base at specific pH values

 #24
20220340997
2022-10-27

SYSTEMS AND PROCESSES FOR RECOVERY OF HIGH-GRADE RARE EARTH CONCENTRATE FROM ACID MINE DRAINAGE

 #25
20220289585
2022-09-15

METHODS FOR THE RECOVERY OF RARE EARTH ELEMENTS

 #26
20220259694
2022-08-18

SYSTEMS AND PROCESSES FOR RECOVERY OF HIGH-GRADE RARE EARTH CONCENTRATE FROM ACID MINE DRAINAGE

 #27
20220259082
2022-08-18

Agents for use in hydrometallurgical process streams

 #28
20210386878
2021-12-16

System and Process for Production of Isotopes and Isotope Compositions

 #29
20210372257
2021-12-02

Trona solution mining methods and compositions

 #30
20210363648
2021-11-25

Methods for treating lithium-containing materials

 #31
20210332458
2021-10-28

System and method including multi-circuit solution extraction for recovery of metal values from metal-bearing materials

 #32
20210260603
2021-08-26

Iron chelators as activators in alkaline flotation circuits

 #33
20210252477
2021-08-19

Molecularly imprinted polymer beads for extraction of metals and uses thereof

 #34
20210207241
2021-07-08

SYSTEMS AND PROCESSES FOR RECOVERY OF HIGH-GRADE RARE EARTH CONCENTRATE FROM ACID MINE DRAINAGE

 #35
20210140009
2021-05-13

Processing rare earth sulphate solutions

 #36
20210032723
2021-02-04

Method for dissolving metallogenically primary copper metals obtained from ores and/or chalcopyrite concentrates that contain same

 #37
20210017625
2021-01-21

Systems and processes for recovery of high-grade rare earth concentrate from acid mine drainage

 #38
20200400006
2020-12-24

Trona solution mining methods and compositions

 #39
20200392601
2020-12-17

Treated geothermal brine compositions with reduced concentrations of silica, iron and manganese

 #40
20200348281
2020-11-05

METHOD FOR THE DISCRIMINATION BETWEEN MARINE AND TERRESTRIAL SEDIMENTARY ENVIRONMENTS BY SELECTIVELY EXTRACTED EXCHANGEABLE STRONTIUM TO BARIUM RATIO FROM TERRIGENOUS CLASTIC SEDIMENTS

 #41
20200308016
2020-10-01

Process for separating scandium from complex salt mixtures

 #42
20200283871
2020-09-10

Method of separating mercury from an ore leachate

 #43
20200254422
2020-08-13

Compositions and Methods for Removing Heavy Metals from Contaminated Materials

 #44
20200224521
2020-07-16

Trona solution mining methods and compositions

 #45
20200222877
2020-07-16

DNA complex, adsorbent, adsorption column, purification system, liquid treatment method, and method for producing DNA complex

 #46
20200181737
2020-06-11

Process for leaching metal sulfides with reagents having thiocarbonyl functional groups

 #47
20200181736
2020-06-11

Process for leaching metal sulfides with reagents having thiocarbonyl functional groups

 #48
20200181735
2020-06-11

Process for leaching metal sulfides with reagents having thiocarbonyl functional groups

 #49
20200115807
2020-04-16

Methods for treating lithium-containing materials

 #50
20200063236
2020-02-27

System and method including multi-circuit solution extraction for recovery of metal values from metal-bearing materials

 #51
20200002783
2020-01-02

Process for recovering precious metals from clay-containing ores

 #52
20190352741
2019-11-21

METHOD OF DETECTION AND EXTRACTING METALS FROM ORE-BEARING SLURRY

 #53
20190316225
2019-10-17

EXTRACTION OF RARE EARTH ELEMENTS AND CARBON RICH SOLIDS FROM COAL FEEDSTOCK USING IONIC LIQUIDS

 #54
20190249272
2019-08-15

Autoclave and method for removing salt from autoclave

 #55
20190211421
2019-07-11

Method for recovering precious metal

 #56
20190161828
2019-05-30

Production of scandium-containing concentrate and further extraction of high-purity scandium oxide from the same

 #57
20190136340
2019-05-09

Hydrometallurgical process and method for recovering metals

 #58
20180371578
2018-12-27

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

 #59
20180371577
2018-12-27

ARC FURNACE SMELTERING SYSTEM & METHOD

 #60
20180312940
2018-11-01

Method for recovering scandium values from leach solutions

 #61
20180305788
2018-10-25

System and method including multi-circuit solution extraction for recovery of metal values from metal-bearing materials

 #62
20180245181
2018-08-30

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

 #63
20180214845
2018-08-02

Molecularly imprinted polymer beads for extraction of metals and uses thereof

 #64
20180187286
2018-07-05

Process for recovering precious metals from clay-containing ores

 #65
20170369967
2017-12-28

Methods, materials and techniques for precious metal recovery

 #66
20170335429
2017-11-23

Method of separating mercury from an ore leachate

 #67
20170306514
2017-10-26

Processes for recovering rare earth elements

 #68
20170275733
2017-09-28

METHOD FOR PLATINUM RECOVERY FROM MATERIALS CONTAINING RHENIUM AND PLATINUM METALS

 #69
20170260606
2017-09-14

Processing for the extraction of rare earth elements

 #70
20170233848
2017-08-17

Recovery process

 #71
20170204498
2017-07-20

Simple chemical method for the separation of rare earth metals

 #72
20170175223
2017-06-22

BIOLEACHING METHOD AND FACILITY

 #73
20170114429
2017-04-27

Method for platinum recovery from materials containing rhenium and platinum metals

 #74
20170073794
2017-03-16

Recovery of Metals from Ores

 #75
20170037493
2017-02-09

Utilization of temperature heat adsorption skin temperature as scale control reagent driver

 #76
20160194208
2016-07-07

Methods and systems using electrochemical cells for processing metal sulfate compounds from mine waste and sequestering CO

 #77
20160177420
2016-06-23

Solvent extraction of scandium from leach solutions

 #78
20160145717
2016-05-26

PROCESS OF ISOLATING RARE EARTH ELEMENTS

 #79
20160145715
2016-05-26

Treatment process for recovery and separation of elements from liquors

 #80
20160145714
2016-05-26

Treatment process for extraction of precious, base and rare elements

 #81
20160138132
2016-05-19

A SYSTEM AND METHOD FOR SEPARATION AND PURIFICATION OF DISSOLVED RARE EARTH/PRECIOUS METALS ELEMENTS/COMPOUNDS

 #82
20160130681
2016-05-12

Solvent extraction settler arrangement

 #83
20160122847
2016-05-05

METHODS OF COPPER EXTRACTION

 #84
20160083817
2016-03-24

Method and plant for processing roasted pyrites

 #85
20160053341
2016-02-25

System and method including multi-circuit solution extraction for recovery of metal values from metal-bearing materials

 #86
20160047012
2016-02-18

Extraction agent for precious metals and rhenium, and extraction method for precious metals and rhenium using same

 #87
20160024616
2016-01-28

Method for re-extraction of rare-earth metals from organic solutions and preparing concentrate of rare-earth metals

 #88
20150354025
2015-12-10

Methods of copper extraction

 #89
20150252445
2015-09-10

System and method for recovering precious metals from precursor-type ore materials

 #90
20150211092
2015-07-30

METHOD AND PROCESS FOR THE ENHANCED LEACHING OF COPPER SULFIDE MINERALS CONTAINING CHALCOPYRITE

 #91
20150197826
2015-07-16

Hydrometallurgical process and method for recovering metals

 #92
20150159236
2015-06-11

Solvent extraction settler arrangement

 #93
20150152522
2015-06-04

SOLVENT EXTRACTION PROCESS FOR SEPARATING COBALT FROM NICKEL IN AQUEOUS SOLUTION

 #94
20150086449
2015-03-26

Method of recovering rare-earth elements

 #95
20150027955
2015-01-29

Utilization of temperature heat adsorption skin temperature as scale control reagent driver

 #96
20140286839
2014-09-25

Process for the selective removal of molybdenum from a solution containing it

 #97
20140187452
2014-07-03

Treated geothermal brine compositions with reduced concentrations of silica, iron and manganese

 #98
20140120012
2014-05-01

Method for selective precipitation of iron, arsenic and antimony

 #99
20130228524
2013-09-05

Processes for recovering organic solvent extractant from solid-stabilized emulsions formed in hydrometallurgical solvent extraction circuits

 #100
20130177488
2013-07-11

Process for separating zirconium and hafnium tetrachlorides from mixtures

 #101
20130152741
2013-06-20

System and method including multi-circuit solution extraction for recovery of metal values from metal-bearing materials

 #102
20130121910
2013-05-16

Controlled copper leach recovery circuit

 #103
20130060075
2013-03-07

Method and apparatus for homogenizing and stabilizing an iron-bearing residue

 #104
20130037416
2013-02-14

METHOD FOR PRODUCING MERCURY-FREE ALKALINE-MANGANESE TYPE ELECTROLYZED MANGANESE DIOXIDE

 #105
20130008856
2013-01-10

Method For Controlling Solids/Liquid Decant Unit Operations And Systems

 #106
20130001093
2013-01-03

METHOD AND APPARATUS FOR ELECTROWINNING COPPER USING AN ATMOSPHERIC LEACH WITH FERROUS/FERRIC ANODE REACTION ELECTROWINNING

 #107
20120325675
2012-12-27

Apparatus and method for recovery of valuable metals by alkali leaching

 #108
20120298914
2012-11-29

Method for Treating and Conditioning Tailings

 #109
20120261249
2012-10-18

Subterranean well production saltwater evaporation station

 #110
20120234137
2012-09-20

Hydrometalurgical process and apparatus for recovering metals from waste material

 #111
20120201737
2012-08-09

Process for production of commercial quality potassium nitrate from polyhalite

 #112
20120134899
2012-05-31

Process for recovering metals from a stream rich in hydrocarbons and carbonaceous residues

 #113
20120125160
2012-05-24

Silica removal from pregnant leach solutions

 #114
20120090433
2012-04-19

ENHANCED RECOVERY OF GOLD

 #115
20120080382
2012-04-05

Method of regeneration an organic extraction solution that has been used in a liquid-liquid extraction process

 #116
20120067170
2012-03-22

EXTRACTION OF GOLD FROM CATHODE ASSOCIATED GOLD CONCENTRATES

 #117
20120067169
2012-03-22

METHOD FOR PROCESSING PRECIOUS METAL SOURCE MATERIALS

 #118
20120060651
2012-03-15

Copper recovery circuit

 #119
20120018383
2012-01-26

METHOD FOR DISPERSING AND AGGREGATING COMPONENTS OF MINERAL SLURRIES

 #120
20120014860
2012-01-19

Method for recovering nitric acid and purifying silver nitrate electrolyte

 #121
20110318253
2011-12-29

Method for purifying lithium bicarbonate

 #122
20110283838
2011-11-24

Solvent extraction process for separating cobalt from nickel in aqueous solution

 #123
20110277593
2011-11-17

Controlled metal leach recovery circuit

 #124
20110182786
2011-07-28

Hydrometallurgical process and method for recovering metals

 #125
20110150754
2011-06-23

Water-in-oil-in-water emulsions of hydroxamated polymers and methods for using the same

 #126
20110140037
2011-06-16

Methods and compositions for the removal of impurities from an impurity-loaded organic salt

 #127
20110129397
2011-06-02

METHOD FOR RECOVERING VALUABLE METAL FROM WASTE CATALYST

 #128
20110005350
2011-01-13

Recovery method and recovery apparatus of thallium in cement production facilities

 #129
20110000337
2011-01-06

Silica removal from pregnant leach solutions

 #130
20100329970
2010-12-30

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

 #131
20100329969
2010-12-30

Process for the recovery of selenium from minerals and/or acidic solutions

 #132
20100329968
2010-12-30

Process for the recovery of selenium from minerals and/or acidic solutions

 #133
20100326840
2010-12-30

Process for the recovery of tellurium from minerals and/or acidic solutions

 #134
20100303709
2010-12-02

Subterranean well production saltwater evaporation station

 #135
20100286464
2010-11-11

Methods of Treatment of Chromite Ore Processing Residue

 #136
20100269634
2010-10-28

PRODUCTION OF METAL NANOPARTICLES

 #137
20100242681
2010-09-30

Method for concentration of gold in copper sulfide minerals

 #138
20100233767
2010-09-16

PROCESS FOR THE RECOVERY OF MAGNESIUM FROM A SOLUTION AND PRETREATMENT

 #139
20100206777
2010-08-19

Compositions and methods for coagulating silica from mineral processing streams

 #140
20100196232
2010-08-05

Ozone treatment of alkali metal compound solutions

 #141
20100170853
2010-07-08

System and method for wastewater treatment

 #142
20100166626
2010-07-01

Method for wastewater treatment

 #143
20100166625
2010-07-01

System and method for wastewater treatment

 #144
20100163497
2010-07-01

SYSTEM AND METHOD FOR WASTEWATER TREATMENT

 #145
20100163491
2010-07-01

System and method for wastewater treatment

 #146
20100163489
2010-07-01

SYSTEM AND METHOD FOR WASTEWATER TREATMENT

 #147
20100111751
2010-05-06

Method for thiosulfate leaching of precious metal-containing materials

 #148
20100087697
2010-04-08

Methods of treatment of chromite ore processing residue

 #149
20100044631
2010-02-25

Arsenic-containing solid and method for producing it

 #150
20100031779
2010-02-11

Process for recovery of copper from copper-containing chloride media

 #151
20090301972
2009-12-10

Materials and process for enhancing selective separations

 #152
20090301897
2009-12-10

Process for removing water from alkali metal amalgam

 #153
20090293673
2009-12-03

POWDERED METALS EXTRACTED FROM ACID MINE DRAINAGE AND THEIR USE IN THE MANUFACTURE OF PRESSED METAL ARTICLES

 #154
20090183997
2009-07-23

Method and apparatus for electrowinning copper using an atmospheric leach with ferrous/ferric anode reaction electrowinning

 #155
20090090215
2009-04-09

Method and unit for continuously producing metal microparticle

 #156
20090074640
2009-03-19

Silica removal from pregnant leach solutions

 #157
20090074639
2009-03-19

Controlled copper leach recovery circuit

 #158
20090071296
2009-03-19

Process for controlling acid in sulfide pressure oxidation processes

 #159
20080025892
2008-01-31

Process for the Production of Magnesium Oxide

 #160
20070227903
2007-10-04

Precious Metal Recovery

 #161
20070089566
2007-04-26

Method for thiosulfate leaching of precious metal-containing materials

 #162
20070034052
2007-02-15

Production of metal nanoparticles

 #163
20060191853
2006-08-31

Water-in-oil-in-water emulsions of hydroxamated polymers and methods for using the same

 #164
20060189113
2006-08-24

Metal nanoparticle compositions

 #165
20060159603
2006-07-20

Separation of metal nanoparticles

 #166
20050255035
2005-11-17

Purification method for producing high purity niobium compound and/or tantalum compound

 #167
20050093211
2005-05-05

Method and unit for continuously producing metal microparticle

 #168
20050079114
2005-04-14

Selenium removal method

 #169
17201729
2024-09-10

Method embodiments for extracting elements from coal combustion products

 #170
15788724
2021-12-14

System and process for production of isotopes and isotope compositions

 #171
15176758
2016-11-29

Molecularly imprinted polymer beads for extraction of metals and uses thereof

 #172
14876902
2016-09-20

Dipentene dimercaptan compositions and use thereof as a mining chemical collector

 #173
14537194
2018-07-24

Method of direct solvent extraction of rare earth metals from an aqueous acid-leached ore slurry