ClassID:

119381

C22B15/0089 - CPC Classification

Classification description:

Obtaining copper; Hydrometallurgy; Treating solutions by chemical methods

Sub-classes:
Recent Application in this class:
#1
20260109634
2026-04-23

METHOD FOR TREATING AN AMMONICAL COPPER ETCHING PCB WASTEWATER

#2
20260078468
2026-03-19

Recycling Of Nickel And/Or Lithium From Spent Cathodes Forming Battery Grade Material

#3
20260028239
2026-01-29

METHOD AND APPARATUS FOR EXTRACTING COPPER/TIN SOURCE MATERIAL FROM OXALATE OF COPPER AND/OR TIN

#4
20260022484
2026-01-22

METHODS AND APPARATUS FOR EXTRACTING METALS FROM MATERIALS

#5
20250369074
2025-12-04

PROCESS FOR SEPARATING RARE-EARTH METALS IN ADMIXTURE IN AQUEOUS SOLUTION

#6
20250349922
2025-11-13

IMPURITY MANAGEMENT PROCESS FOR LITHIUM-ION BATTERY RECYCLING

#7
20250323336
2025-10-16

SYSTEMS AND METHODS FOR RECYCLING ENERGY STORAGE DEVICES

#8
20250270672
2025-08-28

METHOD FOR RECOVERING PRECURSOR METAL FOR SECONDARY CELL CATHODE MATERIAL USING SYNERGISTIC SOLVENT EXTRACTION APPLIED WITH EXTRACTANT DEGRADATION PREVENTING TECHNOLOGY

#9
20250215527
2025-07-03

ELECTRODE MATERIAL LEACHING METHOD AND METHOD FOR SEPARATING COBALT AND NICKEL

#10
20250179610
2025-06-05

EXTRACTION OF BASE METALS USING CARBONACEOUS MATTER AND A THIOCARBONYL FUNCTIONAL GROUP REAGENT

#11
20250171874
2025-05-29

PRINCIPLES OF OPERATION AND CONTROL OF OXIDIZER IN COUNTERCURRENT LEACHING CONFIGURATIONS

#12
20250161837
2025-05-22

SYSTEM FOR PREPARING NEW ENERGY NI-CO-MN RAW MATERIAL FROM LATERITE NICKEL ORE

#13
20250030074
2025-01-23

METHOD FOR RECOVERING VALUABLE MATERIALS FROM BATTERIES

#14
20250003027
2025-01-02

METHOD FOR PROCESSING ALLOY

#15
20240372169
2024-11-07

METHOD FOR RECOVERING WASTE LITHIUM BATTERY MATERIALS

#16
20240368730
2024-11-07

METHOD FOR LEACHING COPPER USING PRESSURE LEACHING TECHNIQUE

#17
20240343969
2024-10-17

METHOD FOR RECYCLING AN LED

#18
20240327947
2024-10-03

MINERAL PROCESSING METHOD

#19
20240274913
2024-08-15

Method for recovering waste lithium cobalt oxide battery

#20
20240274912
2024-08-15

EXTRACTION OF METALS FROM LITHIUM-ION BATTERY MATERIAL

#21
20240124952
2024-04-18

METHOD FOR PRODUCING LOW-ARSENIC COPPER CONCENTRATE

#22
20240006677
2024-01-04

RECOVERY OF METALS FROM LITHIUM-ION BATTERIES

#23
20230407435
2023-12-21

OXIDATIVE BIOLEACHING OF BASE METALS

#24
20230352756
2023-11-02

METHODS FOR IMPURITY REMOVAL AND TREATMENT IN RECYCLING PROCESS OF SCRAP POSITIVE ELECTRODE MATERIALS OF LITHIUM BATTERIES

#25
20230257852
2023-08-17

Extraction of base metals using carbonaceous matter and a thiocarbonyl functional group reagent

#26
20230193418
2023-06-22

SULPHIDE OXIDATION IN LEACHING OF MINERALS

#27
20220402030
2022-12-22

Processes for producing granular copper

#28
20220267879
2022-08-25

Method for whole component microwave fast digestion and precious metal extraction from ionic liquid of waste circuit board

#29
20220267877
2022-08-25

Co-processing of copper sulphide concentrate with nickel laterite ore

#30
20210381080
2021-12-09

REAGENT COMPOSITIONS FOR METAL SOLVENT EXTRACTION AND METHODS OF PREPARATION AND USE THEREOF

#31
20210262060
2021-08-26

METHOD FOR SEPARATING COPPER FROM NICKEL AND COBALT

#32
20210260603
2021-08-26

Iron chelators as activators in alkaline flotation circuits

#33
20210071283
2021-03-11

Opportunities for recovery augmentation process as applied to molybdenum production

#34
20190309391
2019-10-10

Methods for controlling iron via magnetite formation in hydrometallurgical processes

#35
20190010578
2019-01-10

METHOD FOR RECYCLING COPPER INDIUM GALLIUM SELENIUM MATERIALS

#36
20180298505
2018-10-18

Systems and methods for improved metal recovery using ammonia leaching

#37
20180282838
2018-10-04

Process for extraction of copper from arsenical copper sulfide concentrate

#38
20180274060
2018-09-27

Opportunities for recovery augmentation process as applied to molybdenum production

#39
20180171432
2018-06-21

Processes for recovering non-ferrous metals from solid matrices

#40
20170335428
2017-11-23

Process for the improvement of copper leaching processes using calcium chloride

#41
20170260605
2017-09-14

Preparation method of copper nano-structures

#42
20170175226
2017-06-22

Apparatus and Process for the Improved Economic Extraction of Metal from a Metal-Bearing Material

#43
20170173698
2017-06-22

Method for preparing metal powder

#44
20170159153
2017-06-08

Leaching aids and methods of using leaching aids

#45
20170152583
2017-06-01

Method of recovering base metals from low grade ores and residues

#46
20170145540
2017-05-25

Purification of copper concentrate by removal of arsenic and antimony with concomitant regeneration and recycle of lixiviant

#47
20170088964
2017-03-30

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

#48
20160369417
2016-12-22

Method for recovery of copper and zinc

#49
20160304988
2016-10-20

COPPER PROCESSING METHOD

#50
20160115568
2016-04-28

Method of recovering copper and precious metals

#51
20160115563
2016-04-28

Method for recovering metals

#52
20160068977
2016-03-10

Systems and methods for improved metal recovery using ammonia leaching

#53
20150376734
2015-12-31

Valuable-metal extraction method

#54
20150287503
2015-10-08

Production method for particles of element having standard electrode potential greater than 0V

#55
20150287492
2015-10-08

NON-HOMOGENEOUS COPPER-NICKEL COMPOSITE AND METHOD FOR SYNTHESIZING THE SAME

#56
20150283616
2015-10-08

Method for producing metal microparticles

#57
20150218672
2015-08-06

Process for recovering metal values from oxides of manganese-containing materials

#58
20150024204
2015-01-22

NOVEL PROCESS OF PREPARING NANO METAL AND THE PRODUCTS THEREOF

#59
20140377152
2014-12-25

Copper recovery apparatus and copper recovery method

#60
20140271415
2014-09-18

MODIFIED OXIME EXTRACTANT FORMULATION

#61
20140260807
2014-09-18

Systems and methods for improved metal recovery using ammonia leaching

#62
20140260806
2014-09-18

Systems and methods for improved metal recovery using ammonia leaching

#63
20140155247
2014-06-05

Method for producing microparticles having controlled crystallite diameter

#64
20140065037
2014-03-06

Treatment of indium gallium alloys and recovery of indium and gallium

#65
20140044617
2014-02-13

Metathetic copper concentrate enrichment

#66
20140033870
2014-02-06

Method for separating metal nanoparticles from colloidal metal solution

#67
20140003991
2014-01-02

Nanoparticle composition and methods of making the same

#68
20130302225
2013-11-14

Compositions and methods of using a ketoxime in a metal solvent extraction reagent

#69
20130276586
2013-10-24

METHODS AND SYSTEMS FOR RECOVERING RHENIUM FROM A COPPER LEACH

#70
20130247718
2013-09-26

Methods of metal extraction using oximes

#71
20120304827
2012-12-06

Methods and systems for recovering rhenium from a copper leach

#72
20120279357
2012-11-08

Leaching process for copper concentrates with a carbon catalyst

#73
20120234767
2012-09-20

Copper recovery apparatus and copper recovery method

#74
20120219478
2012-08-30

Methods of metal extraction from ammoniacal solutions using oximes

#75
20120219476
2012-08-30

Methods of metal extraction using oximes

#76
20120219475
2012-08-30

Compositions and methods of using a ketoxime in a metal solvent

#77
20120219474
2012-08-30

Metal solvent extraction reagents and use thereof

#78
20120125160
2012-05-24

Silica removal from pregnant leach solutions

#79
20120118109
2012-05-17

Phenoxypyrazole composition and process for the solvent extraction of metals

#80
20120080382
2012-04-05

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

#81
20120027652
2012-02-02

METATHETIC COPPER CONCENTRATE ENRICHMENT

#82
20120018376
2012-01-26

Apparatus and method for removing impurities in connection with liquid-liquid extraction of copper

#83
20110290077
2011-12-01

Process for separating copper and/or nickel from cobalt containing solutions

#84
20110232421
2011-09-29

Nickel recovery from a high ferrous content laterite ore

#85
20110142735
2011-06-16

Method for separating radioactive copper using chelating-ion exchange resin

#86
20110127464
2011-06-02

Nanoparticle composition and methods of making the same

#87
20110113928
2011-05-19

Leaching ores

#88
20110086935
2011-04-14

Picolylamine resins

#89
20110033369
2011-02-10

Method for production of high purity copper sulfate

#90
20110030508
2011-02-10

Process for Metal Seperation Using Resin-in-Pulp or Resin-in-Solution Processes

#91
20110000337
2011-01-06

Silica removal from pregnant leach solutions

#92
20100314242
2010-12-16

Method for Recovering Gold, Silver, Copper and Iron from Plasma-Caused Slag Containing Valuable Metals

#93
20100294081
2010-11-25

Method and apparatus for removing and recovering copper from copper-containing acidic waste liquid and method for producing copper-containing substance

#94
20100263490
2010-10-21

METHODS AND SYSTEMS FOR RECOVERING RHENIUM FROM A COPPER LEACH

#95
20100258448
2010-10-14

USE OF A RARE EARTH FOR THE REMOVAL OF ANTIMONY AND BISMUTH

#96
20100230294
2010-09-16

Method to remove antimony from copper electrolytes

#97
20100215570
2010-08-26

Method of alkali processing substance containing arsenic

#98
20100196231
2010-08-05

Method of processing non-ferrous smelting intermediates containing arsenic

#99
20100180727
2010-07-22

Method for the production of metal powder

#100
20100116093
2010-05-13

Method of recovering silver using anion-exchange resin

#101
20100031779
2010-02-11

Process for recovery of copper from copper-containing chloride media

#102
20090293680
2009-12-03

Processing of Metal Values from Concentrates

#103
20090272466
2009-11-05

Ultrahigh-Purity Copper and Process for Producing the Same, and Bonding Wire Comprising Ultrahigh-Purity Copper

#104
20090241732
2009-10-01

Method of obtaining copper from ore

#105
20090158894
2009-06-25

Method for recovering gold

#106
20090104107
2009-04-23

Methods of making and washing scorodite

#107
20090101518
2009-04-23

Process for recovery of copper from copper-bearing material using pressure leaching, direct electrowinning and solvent/solution extraction

#108
20090078086
2009-03-26

Method for recovering copper from a copper sulphide ore

#109
20090074640
2009-03-19

Silica removal from pregnant leach solutions

#110
20090019970
2009-01-22

PROCESS FOR RECOVERY OF METAL VALUES FROM MATERIALS CONTAINING ARSENIC AND/OR ANTIMONY

#111
20080312452
2008-12-18

Phenoxypyrazole composition and process for the solvent extraction of metals

#112
20080175772
2008-07-24

More efficient ether modifiers for copper extractant formulations

#113
20080170976
2008-07-17

Method for the hydrometallurgical treatment of sulfide concentrate containing several valuable metals

#114
20080157029
2008-07-03

Method of producing copper nanoparticles and copper nanoparticles produced thereby

#115
20080069748
2008-03-20

MULTIVALENT IRON ION SEPARATION IN METAL RECOVERY CIRCUITS

#116
20080035893
2008-02-14

Highly-conductive copper extractant formulations

#117
20070292325
2007-12-20

Process for improving phase separations in solvent extraction circuits

#118
20070213228
2007-09-13

Method of producing fine-particle copper powders

#119
20070207076
2007-09-06

Method of preparing metal-containing wood preserving compositions

#120
20070041884
2007-02-22

Resin and process for extracting non-ferrous metals

#121
20070039420
2007-02-22

Method for improving metals recovery using high temperature pressure leaching

#122
20070028721
2007-02-08

Treatment of base metal concentrate by a two-step bioleaching process

#123
20060272454
2006-12-07

Method for producing concentrates

#124
20060236813
2006-10-26

Production of fine particle copper powders

#125
20060196313
2006-09-07

METHOD FOR RECOVERING COPPER FROM COPPER-CONTAINING MATERIALS USING DIRECT ELECTROWINNING

#126
20060147360
2006-07-06

Process of solvent extraction of copper

#127
20060144717
2006-07-06

Process for recovery of copper from copper-bearing material using pressure leaching, direct electrowinning and solvent/solution extraction

#128
20060138050
2006-06-29

Method and apparatus for metal removal by ion exchange

#129
20060088458
2006-04-27

Method for heap and dump leaching coupled with solvent extraction for metal recovery

#130
20050232849
2005-10-20

High purity copper sulfate and method for production thereof

#131
20050155458
2005-07-21

Method for improving metals recovery using high temperature pressure leaching

#132
20050126923
2005-06-16

Process for recovery of copper from copper-bearing material using medium temperature pressure leaching, direct electrowinning and solvent/solution extraction

#133
20050109163
2005-05-26

Process for multiple stage direct electrowinning of copper

#134
20050040108
2005-02-24

Metal ion recovery

#135
15358188
2017-03-21

Mercaptanized dicyclopentadiene compositions and use thereof as a mining chemical collector

#136
14876902
2016-09-20

Dipentene dimercaptan compositions and use thereof as a mining chemical collector