ClassID:

119442

C22B23/043 - CPC Classification

Classification description:

Obtaining nickel or cobalt by wet processes; Leaching processes with acids or salt solutions except ammonium salts solutions Sulfurated acids or salts thereof

Recent Application in this class:
#1
20260139400
2026-05-21

METHODS OF EXTRACTING METALS BY ELECTROCHEMICAL PROCESSING OF A SULFOARSENIDE COMPOUND

#2
20260125776
2026-05-07

METHOD FOR RECOVERING ACTIVE METAL OF LITHIUM SECONDARY BATTERY

#3
20260125279
2026-05-07

METHOD FOR PREPARING HIGH-PURITY MIXED NICKEL AND COBALT SULPHATE

#4
20260116775
2026-04-30

A METHOD FOR SEPARATING MANGANESE IN LEACHING OF COBALT AND/OR NICKEL FROM DELITHIATED SOLID RAW MATERIAL AND USE OF DELITHIATED SOLID RAW MATERIAL COMPRISING CATHODE MATERIAL

#5
20260109615
2026-04-23

A RECYCLING METHOD FOR RECOVERY OF VALUABLE METAL ELEMENTS FROM WASTE BATTERY MATERIALS

#6
20260103775
2026-04-16

PROCESS FOR LEACHING METAL SULFIDES WITH REAGENTS HAVING THIOCARBONYL FUNCTIONAL GROUPS

#7
20260081249
2026-03-19

METHOD FOR RECYCLING LITHIUM BATTERIES

#8
20260078468
2026-03-19

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

#9
20260062315
2026-03-05

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

#10
20260055484
2026-02-26

PROCESSES FOR EXTRACTING METALS FROM LITHIUM-ION BATTERIES

#11
20260035766
2026-02-05

PROCESS AND SYSTEM FOR RECOVERING COPPER AND COBALT FROM SULFIDIC MATERIALS

#12
20260028695
2026-01-29

EXTRACTION AND RECOVERY OF METALS UNDER AMBIENT CONDITIONS

#13
20260015246
2026-01-15

METHOD FOR RECOVERING METALS

#14
20260009105
2026-01-08

METHOD FOR REMOVING ALUMINUM AND METHOD FOR RECOVERING METALS

#15
20260002233
2026-01-01

METHODS FOR OBTAINING CARBON NEUTRAL OR CARBON NEGATIVE METALS FROM PLANTS, AND RELATED COMPOSITIONS

#16
20260002232
2026-01-01

METHOD FOR REMOVING ALUMINUM AND METHOD FOR RECOVERING METALS

#17
20250357565
2025-11-20

HYDROMETALLURGY PROCESS FOR RECYCLING LI-ION BATTERY MATERIALS

#18
20250340969
2025-11-06

SULPHIDATION OF A SOLID METAL FEED COMPRISING NI AND/OR CO

#19
20250305090
2025-10-02

SEPARATION OF CRITICAL BATTERY MATERIALS FROM END-OF-LIFE SOURCES

#20
20250273760
2025-08-28

METHOD AND APPARATUS FOR RECYCLING LITHIUM-ION BATTERIES

#21
20250270672
2025-08-28

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

#22
20250263306
2025-08-21

PROCESS FOR PREPARING A HIGH-PURITY NICKEL SULPHATE SOLUTION

#23
20250219179
2025-07-03

Method and Facility for Preparing and Evaluating Batteries

#24
20250215527
2025-07-03

ELECTRODE MATERIAL LEACHING METHOD AND METHOD FOR SEPARATING COBALT AND NICKEL

#25
20250215524
2025-07-03

METHOD FOR RECOVERING METALS

#26
20250215523
2025-07-03

Improved Systems And Methods For Metal Recovery From Lithium Ion Batteries

#27
20250207220
2025-06-26

METHOD FOR PROCESSING BLACK MASS TO BATTERY CHEMICALS

#28
20250197965
2025-06-19

METHOD FOR LEACHING METAL AND METHOD FOR RECOVERING METAL

#29
20250196207
2025-06-19

METHOD FOR RECYCLING LITHIUM BATTERIES

#30
20250188567
2025-06-12

PROCESS FOR GENERATING A METAL-CONTAINING AQUEOUS SOLUTION

#31
20250183398
2025-06-05

METHOD USING SOLVENT EXTRACTION FOR SELECTIVE RECOVERY OF VALUABLE METAL FROM LITHIUM SECONDARY BATTERY WASTE MATERIAL

#32
20250179612
2025-06-05

METHOD FOR REMOVING ALUMINUM

#33
20250171876
2025-05-29

DYNAMIC OPTIMIZATION METHOD FOR ACID-TO-ORE RATIO IN HIGH-PRESSURE LEACHING OF LATERITE NICKEL ORE

#34
20250171875
2025-05-29

TREATMENT METHOD FOR LATERITE NICKEL ORE BY CURING AND ROASTING-WATER LEACHING-ATMOSPHERIC PRESSURE ACID LEACHING

#35
20250171873
2025-05-29

HIGH-PRESSURE REACTOR ACID ADDING SYSTEM FOR LATERITE NICKEL ORE HYDROMETALLURGY

#36
20250166738
2025-05-22

SYSTEM FOR OPTIMIZING DURATION TIME OF HIGH-PRESSURE LEACHING OF LATERITE NICKEL ORE

#37
20250070290
2025-02-27

IMPURITY CONTROL IN LITHIUM-ION BATTERY RECYCLING

#38
20250066875
2025-02-27

ALL-IN-ONE NICKEL RECOVERING METHOD FOR NICKEL RECOVERY FROM RAW MATERIALS CONTAINING NICKEL

#39
20250051877
2025-02-13

CURING PROCESS FOR SURFACE DEFECTS OF CATHODE MATERIAL

#40
20250051875
2025-02-13

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

#41
20250046901
2025-02-06

PROCESSING METHOD FOR BATTERY MEMBER

#42
20250043386
2025-02-06

METHOD FOR RECOVERING METALS FROM LITHIUM ION BATTERY WASTE

#43
20250043383
2025-02-06

TREATMENT METHOD FOR ALLOY

#44
20250034676
2025-01-30

OXIDATIVE AND REDUCTIVE LEACHING METHODS

#45
20250003027
2025-01-02

METHOD FOR PROCESSING ALLOY

#46
20240413421
2024-12-12

CHARGE MATERIAL FOR RECYCLED LITHIUM-ION BATTERIES

#47
20240392408
2024-11-28

ALLOY TREATMENT METHOD

#48
20240356099
2024-10-24

METHOD FOR RECOVERING LITHIUM BATTERY POSITIVE ELECTRODE PLATE

#49
20240356097
2024-10-24

CRYSTALLIZATION PROCESS FOR THE SEPARATION OF METALS

#50
20240336991
2024-10-10

PROCESS FOR LEACHING METAL SULFIDES WITH REAGENTS HAVING THIOCARBONYL FUNCTIONAL GROUPS

#51
20240336990
2024-10-10

PROCESS FOR LEACHING METAL SULFIDES WITH REAGENTS HAVING THIOCARBONYL FUNCTIONAL GROUPS

#52
20240318282
2024-09-26

METHOD FOR PROCESSING ALLOY

#53
20240274913
2024-08-15

Method for recovering waste lithium cobalt oxide battery

#54
20240274912
2024-08-15

EXTRACTION OF METALS FROM LITHIUM-ION BATTERY MATERIAL

#55
20240271302
2024-08-15

SULFUR DIOXIDE DEPOLARIZED ELECTROLYSIS AND ELECTROLYZER THEREFORE

#56
20240263272
2024-08-08

PROCESS FOR RECOVERING METAL VALUES FROM PROCESS LIQUORS

#57
20240240279
2024-07-18

Method for producing aqueous solution containing nickel, cobalt and manganese

#58
20240228321
2024-07-11

Method for producing nickel sulfate solution for secondary battery from nickel cathode

#59
20240204279
2024-06-20

Method and apparatus for recycling lithium-ion batteries

#60
20240204277
2024-06-20

EXTRACTION OF METALS FROM LITHIUM-ION BATTERY MATERIAL

#61
20240191322
2024-06-13

METHOD FOR RECOVERY OF VALUABLE METALS AND ZEOLITE-CONTAINING MATERIAL FROM WASTE CATHODE MATERIAL REACTION VESSEL

#62
20240183005
2024-06-06

Method for dissolving a positive electrode material

#63
20240167121
2024-05-23

PROCESS FOR LEACHING METAL SULFIDES WITH REAGENTS HAVING THIOCARBONYL FUNCTIONAL GROUPS

#64
20240145805
2024-05-02

A METHOD FOR TARGET METAL REMOVAL VIA SULPHIDE PRECIPITATION

#65
20240141456
2024-05-02

PROCESS FOR LEACHING METAL SULFIDES WITH REAGENTS HAVING THIOCARBONYL FUNCTIONAL GROUPS

#66
20240128530
2024-04-18

VALUABLE METAL RECOVERY METHOD AND RECOVERY APPARATUS

#67
20240124953
2024-04-18

METHOD FOR RECOVERING NICKEL FROM IRON-ALUMINUM SLAG OBTAINED BY BATTERY POWDER LEACHING

#68
20240113349
2024-04-04

NICKEL-METAL HYDRIDE (NIMH) BATTERY RECYCLING

#69
20240110305
2024-04-04

Sulfur dioxide depolarized electrolysis and electrolyzer therefore

#70
20240083768
2024-03-14

Method for preparing nickel sulfate using low-nickel ferronickel

#71
20240035112
2024-02-01

METAL-DISSOLVING APPARATUS, PROCESSES AND USES THEREOF

#72
20240002973
2024-01-04

INTEGRATION OF CARBON SEQUESTRATION WITH SELECTIVE HYDROMETALLURGICAL RECOVERY OF METAL VALUES

#73
20230411721
2023-12-21

PROCESS FOR RECOVERY OF METALS AND CARBON POWDER FROM SPENT LITHIUM ION BATTERIES

#74
20230335818
2023-10-19

METHOD FOR SEPARATING AND RECOVERING VALUABLE METALS FROM WASTE TERNARY LITHIUM BATTERIES

#75
20230331571
2023-10-19

WET PROCESS FOR RECOVERING VALUABLE METALS FROM LITHIUM BATTERY

#76
20230313337
2023-10-05

METHOD FOR SEPARATING COBALT AND NICKEL

#77
20230312368
2023-10-05

PROCESS FOR PREPARING BATTERY GRADE METAL SULPHATE SOLUTIONS

#78
20230307735
2023-09-28

Method of recovering cobalt and nickel

#79
20230257850
2023-08-17

Novel Systems And Methods Of Reductive-Acid Leaching Of Spent Battery Electrodes To Recover Valuable Materials

#80
20230250507
2023-08-10

METHOD FOR RECOVERING ACTIVE METAL OF LITHIUM SECONDARY BATTERY

#81
20230227326
2023-07-20

Method for producing battery-grade nickel sulfate by using laterite nickel ore

#82
20230198040
2023-06-22

Method and apparatus for recycling lithium-ion batteries

#83
20230193423
2023-06-22

Ferronickel alloy direct refining processes and processes for producing nickle sulfate or other nickel products

#84
20230167526
2023-06-01

ALLOY TREATMENT METHOD

#85
20230160036
2023-05-25

Method for recovering valuable metal from waste electrode material of lithium secondary battery by using lithium carbonate

#86
20230160035
2023-05-25

METHOD FOR TREATING ALLOY

#87
20230065685
2023-03-02

Recycling of cobalt and nickel from lithium-ion batteries

#88
20230049078
2023-02-16

METHOD OF RECOVERING CATHODE ACTIVE MATERIAL PRECURSOR

#89
20230044374
2023-02-09

Method and apparatus for recycling lithium-ion batteries

#90
20230013498
2023-01-19

METHODS FOR PREPARING CATHODE ACTIVE MATERIAL PRECURSOR MATERIAL AND CATHODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY, AND CATHODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY PREPARED ACCORDING TO SAME

#91
20220320619
2022-10-06

METHOD FOR RECYCLING LITHIUM BATTERIES

#92
20220311068
2022-09-29

Charge material for recycled lithium-ion batteries

#93
20220290273
2022-09-15

Process for the recovery of metals from oxidic ores

#94
20220267879
2022-08-25

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

#95
20220267877
2022-08-25

Co-processing of copper sulphide concentrate with nickel laterite ore

#96
20220205063
2022-06-30

Comprehensive recovery method of pyrolysis polymetallic product from waste integrated circuit board

#97
20220154308
2022-05-19

Method for manufacturing nickel and cobalt-containing solution from hydroxide containing nickel and cobalt

#98
20220131204
2022-04-28

Method and apparatus for recycling lithium-ion batteries

#99
20220074018
2022-03-10

Process for the recovery of metals from polymetallic nodules

#100
20220055916
2022-02-24

PRODUCTION METHOD AND PRODUCTION APPARATUS FOR NICKEL SULFATE SOLUTION

#101
20220017989
2022-01-20

BATTERY RECYCLING PROCESS

#102
20220013820
2022-01-13

BATTERY RECYCLING WITH ELECTROLYSIS OF THE LEACH TO REMOVE COPPER IMPURITIES

#103
20220013815
2022-01-13

Process for recycling cobalt and nickel from lithium ion batteries

#104
20210395859
2021-12-23

PROCESSES FOR EXTRACTING METALS FROM LITHIUM-ION BATTERIES

#105
20210391606
2021-12-16

Charge material for recycled lithium-ion batteries

#106
20210384563
2021-12-09

ANODE RECOVERY IN RECYCLED BATTERIES

#107
20210376399
2021-12-02

Lithium-ion batteries recycling process

#108
20210324495
2021-10-21

Process for the recycling of spent lithium ion cells

#109
20210277497
2021-09-09

Recovery of critical metals from SX-EW copper raffinate and other solutions derived from leaching ores with sulfuric acid

#110
20210262060
2021-08-26

METHOD FOR SEPARATING COPPER FROM NICKEL AND COBALT

#111
20210198767
2021-07-01

Process for Leaching Metal Sulfides with Reagents Having Thiocarbonyl Functional Groups

#112
20210180154
2021-06-17

Method for separating copper, and nickel and cobalt

#113
20210172041
2021-06-10

BYPRODUCT SCANDIUM RECOVERY FROM LOW GRADE PRIMARY METAL OXIDE ORES

#114
20210079495
2021-03-18

PROCESS FOR THE RECOVERY OF COBALT, LITHIUM, AND OTHER METALS FROM SPENT LITHIUM-BASED BATTERIES AND OTHER FEEDS

#115
20210062297
2021-03-04

Method of inhibiting degradation of extractant by anhydrous environment avoiding and metal stripping

#116
20200318219
2020-10-08

Mechanochemical recovery of Co, Li and other constituents from spent lithium-ion batteries

#117
20200216327
2020-07-09

Method for separating copper from nickel and cobalt

#118
20200181737
2020-06-11

Process for leaching metal sulfides with reagents having thiocarbonyl functional groups

#119
20200181736
2020-06-11

Process for leaching metal sulfides with reagents having thiocarbonyl functional groups

#120
20200181735
2020-06-11

Process for leaching metal sulfides with reagents having thiocarbonyl functional groups

#121
20200181734
2020-06-11

Process for leaching metal sulfides with reagents having thiocarbonyl functional groups

#122
20200181733
2020-06-11

Process for leaching metal sulfides with reagents having thiocarbonyl functional groups

#123
20200181732
2020-06-11

Process for leaching metal sulfides with reagents having thiocarbonyl functional groups

#124
20200181731
2020-06-11

Process for leaching metal sulfides with reagents having thiocarbonyl functional groups

#125
20200149132
2020-05-14

Process for leaching metal sulfides with reagents having thiocarbonyl functional groups

#126
20200149131
2020-05-14

Process for leaching metal sulfides with reagents having thiocarbonyl functional groups

#127
20200048736
2020-02-13

Process for leaching metal sulfides with reagents having thiocarbonyl functional groups

#128
20190382870
2019-12-19

HYDROMETALLURGICAL PROCESS FOR NICKEL OXIDE ORE

#129
20190352740
2019-11-21

Method and system for comprehensive recovery and utilization of copper-nickel sulfide ore

#130
20190123402
2019-04-25

Charge material for recycled lithium-ion batteries

#131
20190084839
2019-03-21

Processing method for lithium ion battery scrap

#132
20180291478
2018-10-11

Mineral ore slurry pretreatment method, and method for manufacturing mineral ore slurry

#133
20180135148
2018-05-17

Process for leaching metal sulfides with reagents having thiocarbonyl functional groups

#134
20180105896
2018-04-19

Method for manufacturing nickel and cobalt mixed sulfide and nickel oxide ore hydrometallurgical method

#135
20180073098
2018-03-15

Method for removing iron from iron-containing solution and method for recovering valuable metals

#136
20180056399
2018-03-01

COBALT POWDER PRODUCTION METHOD

#137
20180044760
2018-02-15

Method for producing nickel sulfide and hydrometallurgical method for nickel oxide ore

#138
20180037972
2018-02-08

Wet smelting method for nickel oxide ore

#139
20180037971
2018-02-08

Ore slurry pre-treatment method and ore slurry manufacturing method

#140
20180037470
2018-02-08

Production method for hematite for iron production

#141
20180030569
2018-02-01

Sulfuric acid adding facility and operation method therefor

#142
20170240994
2017-08-24

Nickel recovery process

#143
20170175227
2017-06-22

HYDROMETALLURGICAL PROCESS FOR NICKEL OXIDE ORE

#144
20170170532
2017-06-15

METHOD FOR RECYCLING VALUABLE METALS FROM SPENT BATTERIES

#145
20170009358
2017-01-12

Method for simultaneously recovering cobalt and manganese from lithium based battery

#146
20160362304
2016-12-15

Method for producing hematite for ironmaking

#147
20160355907
2016-12-08

Method for crushing hard tungsten carbide scraps

#148
20160355906
2016-12-08

Method of ore processing using mixture including acidic leach solution and oxidizing agent

#149
20160273071
2016-09-22

Hydrometallurgical process for nickel oxide ore

#150
20160230249
2016-08-11

Method for neutralizing sulfuric acid acidic solution and hydrometallurgical method for nickel oxide ore

#151
20160194215
2016-07-07

Method for producing hematite for ironmaking

#152
20160145714
2016-05-26

Treatment process for extraction of precious, base and rare elements

#153
20160137524
2016-05-19

Hematite manufacturing process and hematite manufactured by same

#154
20160115563
2016-04-28

Method for recovering metals

#155
20160076121
2016-03-17

HYDROMETALLURGICAL PROCESS FOR NICKEL OXIDE ORE

#156
20160047014
2016-02-18

Method for recovering scandium

#157
20160024614
2016-01-28

HYDROMETALLURGICAL PLANT FOR NICKEL OXIDE ORE AND METHOD FOR OPERATING THE HYDROMETALLURGICAL PLANT

#158
20150352475
2015-12-10

Operation method for dezincification plant

#159
20150338027
2015-11-26

Slurry-transporting facility and slurry transportation control method

#160
20150337411
2015-11-26

SOLID-LIQUID-SEPARATION PROCESSING METHOD, AND HYDROMETALLURGICAL METHOD FOR NICKEL OXIDE ORE

#161
20150329379
2015-11-19

Processing device and processing method for hydrogen-sulphide-containing barren solution

#162
20150307955
2015-10-29

Method and apparatus for acid granulation of matte

#163
20150284820
2015-10-08

Hydrometallurgical process for nickel oxide ore

#164
20150267275
2015-09-24

RECOVERY OF NICKEL AND COBALT FROM LATERITES BY SONIC ASSISTED SULFATATION

#165
20150247216
2015-09-03

Method for the hydrometallurgical recovery of lithium, nickel and cobalt from the lithium transition metal oxide-containing fraction of used galvanic cells

#166
20150225810
2015-08-13

Iron recovery method

#167
20150218669
2015-08-06

Method for leaching nickel, cobalt and iron from a nickel laterite ore

#168
20150152521
2015-06-04

Autoclave apparatus used during high-pressure acid leaching process

#169
20150151991
2015-06-04

NEUTRALIZATION METHOD

#170
20150145183
2015-05-28

Flash vessel and method for operating same

#171
20150096412
2015-04-09

Nickel and cobalt recovery using continuous ion exchange

#172
20150086450
2015-03-26

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

#173
20150023849
2015-01-22

Dezincification plant, method for operating dezincification plant, and hydrometallurgical method for nickel oxide ore

#174
20150000466
2015-01-01

Production of high grade nickel product

#175
20140348732
2014-11-27

Operating method in hydrometallurgy of nickel oxide ore

#176
20140322106
2014-10-30

METHOD FOR THE TREATMENT OF ORE MATERIAL

#177
20140170040
2014-06-19

Nickel recovery loss reduction method, hydrometallurgical method for nickel oxidized ore, and sulfuration treatment system

#178
20140048987
2014-02-20

Method for shortening operation shutdown time of high pressure acid leach equipment in a hydrometallurgical process

#179
20140023572
2014-01-23

Method of ore processing

#180
20130266493
2013-10-10

Method for separating nickel from material with low nickel content

#181
20130207325
2013-08-15

WET SMELTING PLANT FOR NICKEL OXIDE ORE AND METHOD OF OPERATING THE SAME

#182
20130112043
2013-05-09

Method for separating nickel and cobalt from active material contained in spent nickel-metal hydride battery

#183
20130028816
2013-01-31

Selective base metals leaching from laterite ores

#184
20120318102
2012-12-20

Method for enhancing solid-liquid separation in conjunction with laterite leaching

#185
20120186398
2012-07-26

Low acid leaching of nickel and cobalt from lean iron-containing nickel ores

#186
20110283831
2011-11-24

Process for the Recovery of Nickel and/or Cobalt from a Leach Solution

#187
20110232421
2011-09-29

Nickel recovery from a high ferrous content laterite ore

#188
20110174113
2011-07-21

Acid Recovery

#189
20110163042
2011-07-07

Removal method of manganese from waste water

#190
20110150729
2011-06-23

Process for Heap Leaching of Nickeliferous Oxidic Ores

#191
20110135547
2011-06-09

Method for recovering nickel from sulfuric acid aqueous solution

#192
20110110832
2011-05-12

Magnesium recycling and sulphur recovery in leaching of lateritic nickel ores

#193
20110100163
2011-05-05

Atmospheric acid leach process for laterites

#194
20110083533
2011-04-14

Saprolite neutralisation of heap leach process

#195
20110058998
2011-03-10

Recovering metal values from a metalliferrous material

#196
20110056333
2011-03-10

Process for atmospheric leaching of laterite ores using hypersaline leach solution

#197
20110056332
2011-03-10

Laterite heap leaching with ferrous lixiviants

#198
20100300249
2010-12-02

Recovering Metal Values from a Leach Residue

#199
20100300248
2010-12-02

Recovering Metal Values from a Metalliferrous Material

#200
20100296988
2010-11-25

Selectively leaching cobalt from lateritic ores

#201
20100282024
2010-11-11

Limonite and Saprolite Heap Leach Process

#202
20100154593
2010-06-24

Production of metallic nickel with low iron content

#203
20100098608
2010-04-22

Process for the hydrometallurgical treatment of a lateritic nickel/cobalt ore and process for producing nickel and/or cobalt intermediate concentrates or commercial products using it

#204
20100058893
2010-03-11

Ion exchange resin and a process for the use thereof

#205
20100034716
2010-02-11

Separation method for zinc sulfide

#206
20100028227
2010-02-04

Hydrometallurgical process for nickel oxide ore

#207
20100018350
2010-01-28

Hydrometallurgical process for a nickel oxide ore

#208
20100011907
2010-01-21

Extraction of metals from sulphide minerals

#209
20090217786
2009-09-03

PROCESSING OF LATERITE ORE

#210
20090180945
2009-07-16

Liquid and solid effluent treatment process

#211
20090148365
2009-06-11

Recovery of Solid Magnesium Sulfate Hydrate

#212
20090087361
2009-04-02

Producing nickel hydroxide suitable for pelletization with iron-containing ore and for stainless steel manufacture

#213
20080289448
2008-11-27

Hybrid process using ion exchange resins in the selective recovery of nickel and cobalt from leaching effluents

#214
20080286182
2008-11-20

Combined Leaching Process

#215
20080271571
2008-11-06

Process for Leaching Lateritic Ore at Atmospheric Pressure

#216
20080236334
2008-10-02

Melting metallurgical process for producing metal melts and transition metal-containing additive for use in this method

#217
20080170976
2008-07-17

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

#218
20080138263
2008-06-12

Process for Heap Leaching of Nickeliferous Oxidic Ores

#219
20080092693
2008-04-24

Exothermic pressure leach autoclave circuits

#220
20080053276
2008-03-06

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Process for recovery of nickel and cobalt by heap leaching of low grade nickel or cobalt containing material

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Method for controlling a process

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Method for nickel and cobalt recovery from laterite ores by combination of atmospheric and moderate pressure leaching

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Method for nickel and cobalt recovery from laterite ores by reaction with concentrated acid and water leaching

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