ClassID:

119261

C22B3/22 - page 2 - 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 by physical processes, e.g. by filtration, by magnetic means, or by thermal decomposition

Recent Application in this class:
#301
20200208238
2020-07-02

Method for comprehensively processing noble lead

#302
20200157655
2020-05-21

PROCESSING METHODS AND PROCESSING APPARATUS

#303
20200115774
2020-04-16

RECOVERY OF LITHIUM FROM AN ACID SOLUTION

#304
20200109462
2020-04-09

METHOD FOR THE PRODUCTION OF COBALT AND ASSOCIATED OXIDES FROM VARIOUS FEED MATERIALS

#305
20200108356
2020-04-09

Selective extraction film for mining application

#306
20200078795
2020-03-12

Mineral processing plant

#307
20200056265
2020-02-20

Method and system for processing rare earth concentrate ore

#308
20190388850
2019-12-26

Fluid treatment apparatus and process

#309
20190382870
2019-12-19

HYDROMETALLURGICAL PROCESS FOR NICKEL OXIDE ORE

#310
20190360072
2019-11-28

Mineral processing method

#311
20190284659
2019-09-19

Precious metals recovery

#312
20190233302
2019-08-01

Method of recovering iron from zinc sulphate solution

#313
20190226054
2019-07-25

Methods of recovering rare earth elements

#314
20190211421
2019-07-11

Method for recovering precious metal

#315
20190177864
2019-06-13

SYSTEMS AND METHODS FOR METAL RECOVERY

#316
20190169710
2019-06-06

Method for extracting rare earth elements contained in permanent magnets

#317
20190169709
2019-06-06

Process for the depression of iron sulphides and other disposable elements in the concentration of mineral by flotation and electrochemical reactor

#318
20190161824
2019-05-30

Extraction of selected platinum-group metals from supported catalyst

#319
20190153563
2019-05-23

Method for recovering lithium from low-context extraction tailwater and recycling extraction tailwater

#320
20190136344
2019-05-09

Low-cost selective precipitation circuit for recovery of rare earth elements from acid leachate of coal waste

#321
20190119781
2019-04-25

Systems and methods for monitoring metal recovery systems

#322
20190059386
2019-02-28

Continuous methods for treating liquids and manufacturing certain constituents (e.g., nanoparticles) in liquids, apparatuses and nanoparticles and nanoparticle/liquid solution(s) resulting therefrom

#323
20190048437
2019-02-14

Recovery of cesium from epithermal mineral deposits

#324
20190024212
2019-01-24

Recovery of lithium from an acid solution

#325
20190003010
2019-01-03

Recovery of lithium from silicate minerals

#326
20180354840
2018-12-13

Method for immobilizing arsenic, and arsenic-containing vitrified waste

#327
20180274057
2018-09-27

Systems and methods for monitoring metal recovery systems

#328
20180265948
2018-09-20

Rare earth element extraction from coal

#329
20180265947
2018-09-20

HYDROMETALLURGICAL METHOD FOR SILVER RECOVERY

#330
20180258510
2018-09-13

Method for reducing arsenic content in arsenic-bearing gold material

#331
20180244531
2018-08-30

Methods for treating lithium-containing materials

#332
20180214890
2018-08-02

System and method for recovering desired materials and producing clean aggregate from incinerator ash

#333
20180187289
2018-07-05

MATERIALS DERIVED FROM COAL USING ENVIRONMENTALLY FRIENDLY SOLVENTS

#334
20180163284
2018-06-14

System and a method for metallurgical extraction of rare earth elements and niobium

#335
20180162763
2018-06-14

Alternative additives to enhance slurry dewatering

#336
20180162741
2018-06-14

METHOD OF REMOVING YTTRIUM FROM YTTRIUM-CONTAINING EUROPIUM OXIDE

#337
20180141056
2018-05-24

APPARATUS AND PROCESS FOR REMOVING CONTAMINANTS FROM SOLID MATERIALS

#338
20180119251
2018-05-03

Methods of recovering rare earth elements from a material

#339
20180111835
2018-04-26

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

#340
20180037470
2018-02-08

Production method for hematite for iron production

#341
20180023168
2018-01-25

Method for recovering scandium

#342
20180015388
2018-01-18

Method of manufacturing a launder and launder

#343
20170367345
2017-12-28

Continuous methods for treating liquids and manufacturing certain constituents (e.g., nanoparticles) in liquids, apparatuses and nanoparticles and nanoparticle/liquid solution(s) resulting therefrom

#344
20170356065
2017-12-14

Systems and methods for monitoring metal recovery systems

#345
20170355609
2017-12-14

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

#346
20170335428
2017-11-23

Process for the improvement of copper leaching processes using calcium chloride

#347
20170327384
2017-11-16

REMOVAL OF IMPURITIES FROM BRINE

#348
20170317391
2017-11-02

Method for Recovering Lithium from Lithium-Sulfur Accumulators

#349
20170253947
2017-09-07

Method of selective extraction of platinoids, from a support containing same, with an extraction medium consisting of a supercritical fluid and an organic ligand

#350
20170241028
2017-08-24

Solvent extraction and stripping system

#351
20170233848
2017-08-17

Recovery process

#352
20170233261
2017-08-17

Production of lithium hydroxide

#353
20170197999
2017-07-13

Treatment of antimony bearing residues for production of potassium antimony tartrate

#354
20170190594
2017-07-06

Process for recovering heavy metal ions

#355
20170183790
2017-06-29

PROCESS FOR PURE ALUMINUM PRODUCTION FROM ALUMINUM-BEARING MATERIALS

#356
20170175228
2017-06-22

Recovery of lithium from silicate minerals

#357
20170175227
2017-06-22

HYDROMETALLURGICAL PROCESS FOR NICKEL OXIDE ORE

#358
20170175226
2017-06-22

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

#359
20170159190
2017-06-08

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

#360
20170152583
2017-06-01

Method of recovering base metals from low grade ores and residues

#361
20170107596
2017-04-20

Method for extracting beryllium from bertrandite and phenakite mineral groups

#362
20170084966
2017-03-23

Manufacturing method of high purity manganese sulphate from the waste liquid of battery recycling process

#363
20170081204
2017-03-23

Process for producing high grade hydromagnesite and magnesium oxide

#364
20170081202
2017-03-23

Method for recovering cyanide from a barren solution

#365
20170050863
2017-02-23

Method for preparing nanometer titanium dioxide

#366
20170044644
2017-02-16

PROCESS OF EXTRACTING GOLD AND SILVER FROM ORES AND MINING BY-PRODUCTS

#367
20170009318
2017-01-12

Recovery of copper from arsenic-containing process feed

#368
20170001128
2017-01-05

Magnetically enhanced phase separation for solvent extraction

#369
20160376683
2016-12-29

Monazite and apatite paragenetic ore enrichment method

#370
20160362804
2016-12-15

WET BASED FORMULATIONS FOR THE SELECTIVE REMOVAL OF NOBLE METALS

#371
20160362304
2016-12-15

Method for producing hematite for ironmaking

#372
20160355907
2016-12-08

Method for crushing hard tungsten carbide scraps

#373
20160355905
2016-12-08

METHOD FOR TREATING SULFIDE-FREE MINERALS

#374
20160319396
2016-11-03

Systems for recovering rare earth elements

#375
20160310956
2016-10-27

Process for recovering value metals from ore

#376
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

#377
20160289795
2016-10-06

Systems and processes for recovering scandium values from laterite ores

#378
20160289099
2016-10-06

System and methods for removing minerals from a brine using electrodialysis

#379
20160271573
2016-09-22

Fluid treatment apparatus and process

#380
20160265083
2016-09-15

Processing methods and processing apparatus

#381
20160237524
2016-08-18

Precious metals recovery

#382
20160230296
2016-08-11

Systems and methods for copper recovery via roasting and leaching

#383
20160215363
2016-07-28

Backflow cascade novel process for producing lithium-7 isotope

#384
20160201162
2016-07-14

Activated semiconductor compounds having increased electrochemical reactivity and associated methods thereof

#385
20160153071
2016-06-02

Processes for recovering rare earth elements from aluminum-bearing materials

#386
20160153066
2016-06-02

Process for efficiently enriching and recovering noble metals of platinum and palladium by solvent extraction

#387
20160130681
2016-05-12

Solvent extraction settler arrangement

#388
20160115568
2016-04-28

Method of recovering copper and precious metals

#389
20160115565
2016-04-28

Method for producing hematite for ironmaking

#390
20160115564
2016-04-28

Method for bioleaching and solvent extraction with selective recovery of copper and zinc from polymetal concentrates of sulfides

#391
20160108495
2016-04-21

Method for the treatment of aluminium slags treatment and associated plant

#392
20160102384
2016-04-14

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

#393
20160076121
2016-03-17

HYDROMETALLURGICAL PROCESS FOR NICKEL OXIDE ORE

#394
20160068927
2016-03-10

Method of preparing a gold-containing solution and process arrangement for recovering gold and silver

#395
20160047014
2016-02-18

Method for recovering scandium

#396
20160032419
2016-02-04

METHOD FOR SELECTIVELY RECOVERING THE RARE EARTHS FROM AN AQUEOUS ACID SULFATE SOLUTION RICH IN ALUMINUM AND PHOSPHATES

#397
20150344990
2015-12-03

Hydrometallurgical treatment process for extraction of metals from concentrates

#398
20150299821
2015-10-22

Mixing method and device for solvent extraction, especially in hydrometallurgical processes

#399
20150284820
2015-10-08

Hydrometallurgical process for nickel oxide ore

#400
20150247218
2015-09-03

Hydrometallurgical process using multi-stage nanofiltration

#401
20150240328
2015-08-27

Alternative additives to enhance slurry dewatering

#402
20150240325
2015-08-27

Alternative additives to enhance slurry dewatering

#403
20150232960
2015-08-20

Solvent extraction method and solvent extraction settler

#404
20150218672
2015-08-06

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

#405
20150203938
2015-07-23

Method for leaching valuable metals contained in waste denitrification catalyst by using roasting and water leaching

#406
20150190781
2015-07-09

Activated carbon for noble metal adsorption, noble metal adsorption filter, and method for recovering noble metals

#407
20150190732
2015-07-09

SOLVENT EXTRACTION SETTLER COMPRISING A FOUNDATION

#408
20150182874
2015-07-02

METHOD OF MANUFACTURING A LAUNDER AND LAUNDER

#409
20150176105
2015-06-25

Rare earth element compositions obtained from particulate material comprising kaolin and methods for obtaining such compositions

#410
20150176103
2015-06-25

PRODUCTION OF TITANIUM DIOXIDE PIGMENTS

#411
20150152518
2015-06-04

Method for Reprocessing an Emulsion Formed During Hydrometallurgical Recovery of a Metal

#412
20150139871
2015-05-21

Recovery of rare earth elements and compounds from coal ash

#413
20150093453
2015-04-02

Continuous methods for treating liquids and manufacturing certain constituents (e.g., nanoparticles) in liquids, apparatuses and nanoparticles and nanoparticle/liquid solution(s) resulting therefrom

#414
20150050200
2015-02-19

PRODUCTION METHOD FOR HEMATITE FOR IRON PRODUCTION

#415
20150033913
2015-02-05

Method and system for gold recovery

#416
20150014225
2015-01-15

Method for recovering chromite, and method for wet smelting of nickel oxide ore

#417
20140096649
2014-04-10

Alkaline and acid pressure oxidation of precious metal-containing materials

#418
20130341250
2013-12-26

Process for wet high intensity magnetic separation with flux amplifying matrix

#419
20130108527
2013-05-02

Apparatus and method for recovering lithium

#420
20130052103
2013-02-28

Processes for extracting aluminum from aluminous ores

#421
20130008856
2013-01-10

Method For Controlling Solids/Liquid Decant Unit Operations And Systems

#422
20120279358
2012-11-08

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

#423
20120261249
2012-10-18

Subterranean well production saltwater evaporation station

#424
20120247688
2012-10-04

EVAPORATION ELEMENT AND PROCESS USING SAME

#425
20120237418
2012-09-20

Processes for extracting aluminum from aluminous ores

#426
20120128528
2012-05-24

Alkaline and acid pressure oxidation of precious metal-containing materials

#427
20120018383
2012-01-26

METHOD FOR DISPERSING AND AGGREGATING COMPONENTS OF MINERAL SLURRIES

#428
20110272508
2011-11-10

Process for Separating Limonite and Saprolite

#429
20110203929
2011-08-25

RECOVERY OF LITHIUM FROM AQUEOUS SOLUTIONS

#430
20110174113
2011-07-21

Acid Recovery

#431
20110132550
2011-06-09

Single Chamber Adsorption Concentrator

#432
20110094877
2011-04-28

ELECTROCHEMICAL SYSTEM FOR METAL RECOVERY

#433
20110044869
2011-02-24

Processes for extracting aluminum and iron from aluminous ores

#434
20110017020
2011-01-27

Method of recycling useful metal

#435
20110005940
2011-01-13

Continuous methods for treating liquids and manufacturing certain constituents (e.g., nanoparticles) in liquids, apparatuses and nanoparticles and nanoparticle/liquid solution(s) resulting therefrom

#436
20100303709
2010-12-02

Subterranean well production saltwater evaporation station

#437
20100288646
2010-11-18

Method of recovering valuable metals from IZO scrap

#438
20100282615
2010-11-11

Method of recovering valuable metals from IZO scrap

#439
20100276354
2010-11-04

Systems and methods for removing contaminate material from a flowable material

#440
20100266484
2010-10-21

Method of processing diarsenic trioxide

#441
20100226839
2010-09-09

Method For Recovery of Gallium

#442
20100224030
2010-09-09

INDIUM RECOVERY BY SUPPORTED LIQUID MEMBRANE WITH STRIP DISPERSION

#443
20100196232
2010-08-05

Ozone treatment of alkali metal compound solutions

#444
20100196230
2010-08-05

Method of processing non-ferrous smelting intermediate containing arsenic

#445
20100193467
2010-08-05

METHOD FOR THE TREATMENT AND REUSE OF A STRIPPER SOLUTION

#446
20100150799
2010-06-17

Processes for extracting aluminum and iron from aluminous ores

#447
20100115988
2010-05-13

Treatment of Molybdate Containing Waste Streams

#448
20100065502
2010-03-18

Method and apparatus for removing metal from waste water

#449
20100064854
2010-03-18

Nickel-laterite process

#450
20100028251
2010-02-04

Sulfate process

#451
20090317281
2009-12-24

METHOD OF ATOMIC TRANSFORMATION

#452
20090304561
2009-12-10

Reactor for separating aluminium from multi-layer film materials

#453
20090288518
2009-11-26

Recycling process for moulded catalyst bodies

#454
20090272227
2009-11-05

Metal extraction without cyanide

#455
20090257931
2009-10-15

METHOD OF RECOVERING NOBLE METALS AND RECOVERING SYSTEM FOR NOBLE METALS

#456
20090246093
2009-10-01

Ultrasonic counter-current screw extractor for uranium recovery

#457
20090200244
2009-08-13

Method and device for shear-thinning of solids containing material

#458
20090184056
2009-07-23

Method of removing dissolved iron in aqueous systems

#459
20090071881
2009-03-19

Method for Production of Bulk Concentrate for Extracting Precious Metals

#460
20090038956
2009-02-12

Amalgam decomposer for mercury cathode cells for alkali chloride electrolysis

#461
20090031862
2009-02-05

RECOVERY PROCESS FOR PRECIOUS METALS

#462
20080317665
2008-12-25

COMPOSITIONS AND METHODS FOR GENERATING HYDROGEN FROM WATER

#463
20080302297
2008-12-11

Method of recovering sodium metal from flux

#464
20080299024
2008-12-04

Method for industrial manufacture of pure MgCOfrom an olivine containing species of rock

#465
20080286180
2008-11-20

Process for gold and silver recovery from a sulphide concentrate

#466
20080236457
2008-10-02

Method for treating bottom ash

#467
20080184849
2008-08-07

Method and apparatus for the recovery of refractory mineral ores

#468
20080141828
2008-06-19

Method and Apparatus for Processing Metalline Sludge

#469
20080135491
2008-06-12

Methods from removing heavy metals from water using chemical precipitation and field separation methods

#470
20080135460
2008-06-12

Separation apparatus

#471
20080128354
2008-06-05

METHOD FOR WASHING FILTRATION MEMBRANES

#472
20080124262
2008-05-29

Titanium Precipitation Process

#473
20080124261
2008-05-29

Operating Titanium Precipitation Process

#474
20080124260
2008-05-29

Titanium Intermediate Processing

#475
20080124259
2008-05-29

Metal Extraction

#476
20080083623
2008-04-10

METHOD AND APPARATUS FOR TREATMENT OF PLATING SOLUTIONS

#477
20080069748
2008-03-20

MULTIVALENT IRON ION SEPARATION IN METAL RECOVERY CIRCUITS

#478
20080041270
2008-02-21

Method for manufacturing metal nanoparticles

#479
20080038169
2008-02-14

METHOD FOR TREATING HEAVY METALS FROM AN EFFLUENT CONTAINING CHELATING AGENTS (EDTA, CDTA, OR CITRATE)

#480
20080019891
2008-01-24

Copper recoery method and system therefor

#481
20070264178
2007-11-15

Waste solids handling

#482
20070119277
2007-05-31

Methods for processing crushed solids with a liquid within a vessel

#483
20070045202
2007-03-01

Apparatus for production, withdrawal and transfer of highly viscous slurry

#484
20070041883
2007-02-22

Process for hydrometallurgical treatment of electric arc furnace dust

#485
20060278358
2006-12-14

Process for reducing contaminants in condensate resulting from the conversion of bauxite to alumina

#486
20060275202
2006-12-07

Method for producing complex oxide of metal

#487
20060127291
2006-06-15

High density, high stability, sized metal oxide powder and process for making same

#488
20060088457
2006-04-27

Ultrasonic counter-current screw extractor for uranium recovery and process therefore

#489
20060076228
2006-04-13

Process for the removal of mercury from solutions contaminated with mercury

#490
20060068112
2006-03-30

Recycling process for boron nitride

#491
20060049109
2006-03-09

Process for the removal of mercury from solutions contaminated with mercury

#492
20050284824
2005-12-29

Filter cake treatment apparatus and method

#493
20050258103
2005-11-24

Methods for removing heavy metals from water using chemical precipitation and field separation methods

#494
20050255035
2005-11-17

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

#495
20050232837
2005-10-20

Compositions and methods for generating hydrogen from water

#496
20050225014
2005-10-13

Filter extraction mechanism

#497
20050201912
2005-09-15

Electrochemical method and apparatus for producing and separating ferrate(VI) compounds

#498
20050016928
2005-01-27

Apparatus and method for water treatment by a direct co-precipitation/filtration process

#499
19423815
2026-05-19

Method for lithium extraction by leaching from spodumene and desulfurization

#500
18948585
2025-04-29

Polymetallic-ore beneficiation and separation reagent, preparation method and use thereof

#501
18870504
2026-03-31

Method for improving particle size and morphology of neutralizer for laterite nickel ore hydrometallurgy

#502
18798726
2025-02-04

Method for removing arsenic from copper smelting soot and comprehensive recovery of valuable metals

#503
18547565
2024-03-12

Method for producing aqueous solution containing nickel or cobalt

#504
18373975
2024-06-04

Leaching method of scheelite

#505
17170678
2022-02-15

Metal recovery using molten salt and related systems

#506
16534491
2020-12-08

System and method for liquid-organic particle separation

#507
15262387
2017-07-04

Rotary interstage screen apparatus

#508
15090643
2017-01-10

Mercaptanized dicyclopentadiene compositions and use thereof as a mining chemical collector

#509
15003265
2016-08-30

Method for synthesizing noble metal nanoparticles using dead cancer cells

#510
14874281
2016-05-24

Method of synthesizing silver nanoparticles from waste film