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Extraction of metal compounds from ores or concentrates by wet processes
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C22B3/00
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Parent Industries
C
CHEMISTRY METALLURGY
C22
Metallurgy
C22B
PRODUCTION AND REFINING OF METALS PRETREATMENT OF RAW MATERIALS
Current Industry
C22B3/00
Extraction of metal compounds from ores or concentrates by wet processes
Sub Industries
C22B3/0001
Leaching of ores not used, see subgroups
C22B3/0002
Leaching with an ammoniacal liquor or with a hydroxide of an alkali or an alkaline earth metal
C22B3/0004
Treatment or purification of solutions
C22B3/0005
by liquid-liquid extraction using organic compounds
C22B3/0006
using acyclic or carbocyclic compounds
C22B3/0008
using acyclic or carbocyclic compounds of a single type
C22B3/0009
using alcohols or phenols
C22B3/001
using amines
C22B3/0012
using aliphatic amines
C22B3/0013
using aromatic amines
C22B3/0014
using amino-alcohols
C22B3/0016
using quaternary ammonium
C22B3/0017
using oximes
C22B3/0018
using ethers or epoxides
C22B3/002
using crown ethers
C22B3/0021
using ketones or aldehydes
C22B3/0022
using organic acids
C22B3/0024
using acids of the carboxylic type or derivatives thereof
C22B3/0025
using oxalic acids
C22B3/0027
using naphthenic acids
C22B3/0028
using ramified chain carboxylic acids or derivatives thereof
C22B3/0029
using cyanic acids or derivatives thereof
C22B3/0031
using organic compounds containing sulfur atom(s)
C22B3/0032
using mixtures of acyclic or carbocyclic compounds of different types
C22B3/0033
using organic acids added to oximes
C22B3/0035
using heterocyclic compounds
C22B3/0036
using heterocyclic compounds of a single type
C22B3/0037
using quinoline
C22B3/0039
using a mixture of organic agents wherein one agent at least is a heterocyclic compound
C22B3/004
using organo-metallic compounds or organo compounds of boron, silicon, phosphorus, selenium or tellurim
C22B3/0041
using organo-metallic compounds of a single type
C22B3/0043
using phosphorus-based acid derivatives
C22B3/0044
of a single type
C22B3/0045
Acyclic compounds
C22B3/0047
of the phosphine or phosphane (PH3) type
C22B3/0048
Primary (RPH2) compounds
C22B3/005
Secondary (R2PH) compounds
C22B3/0051
Tertiary (R3PH) compounds
C22B3/0052
Chalcogenides of phosphine
C22B3/0054
of the phosphorane (PH5) type
C22B3/0055
of the phosphonium (PR4) type
C22B3/0056
Mononuclear oxyacids of tervalent phosphorus or their esters(-ite)
C22B3/0058
Phosphenous (HOPO) type
C22B3/0059
Phosphinous (H2POH) type
C22B3/006
Phosphonous (H2P(OH)2) type
C22B3/0062
Phosphorous (P(OH)3) type
C22B3/0063
Mononuclear oxyacids of pentavalent phosphorus or their esters(-ate)
C22B3/0064
Phosphenic (HOP(O)2) or metaphosphoric type
C22B3/0066
Phosphinic (H2P(O)(OH)) type
C22B3/0067
Phosphonic (H2P(O)(OH)2) type
C22B3/0068
Phosphoric ((O)P(OH)3) type
C22B3/007
Thiophosphoric acids or their esters
C22B3/0071
Dinuclear or polynuclear oxyacids and their derivatives
C22B3/0072
Compounds with phosphorus-nitrogen (P=N) double bonds
C22B3/0074
compounds with (P-P) bonds
C22B3/0075
compounds with (P-Xn-P) bonds (n, 0, X: other than P)
C22B3/0077
Cyclic compounds
C22B3/0078
using a mixture of phosphorus-based acid derivatives of different types
C22B3/0079
of the acyclic type
C22B3/0081
two or more of the phosphine type
C22B3/0082
two or more of the phosphine oxides or sulfides type
C22B3/0083
two or more of the phosphorane type
C22B3/0085
two or more of the phosphonium type
C22B3/0086
two or more of the mononuclear oxyacids of tervalent phosphorus or their esters
C22B3/0087
two or more mononuclear oxyacids of quinquevalent phosphorus or their esters
C22B3/0089
two or more thiophosphoric acids or their esters
C22B3/009
two or more dinuclear or polynuclear oxyacids or their derivatives
C22B3/0091
combinations of the above
C22B3/0093
comprising cyclic compounds only
C22B3/0094
comprising cyclic and acyclic compounds
C22B3/0095
using a mixture of organic agents wherein one agent at least is an organo-metallic compound
C22B3/0097
using a solution of normally solid organic compounds
C22B3/0098
by ion exchange extraction or by adsorption on solid substances
C22B3/02
Apparatus therefor
C22B3/04
by leaching
C22B3/045
Leaching using electrochemical processes
C22B3/06
in inorganic acid solutions
C22B3/065
Nitric acids or salts thereof
C22B3/08
Sulfuric acid, other sulfurated acids or salts thereof
C22B3/10
Hydrochloric acid, other halogenated acids or salts thereof
C22B3/12
in inorganic alkaline solutions
C22B3/14
containing ammonia or ammonium salts
C22B3/16
in organic solutions
C22B3/1608
Leaching with acyclic or carbocyclic agents
C22B3/1616
Leaching with acyclic or carbocyclic agents of a single type
C22B3/1625
with amines
C22B3/1633
with oximes
C22B3/1641
with ketones or aldehydes
C22B3/165
with organic acids
C22B3/1658
Leaching with acyclic or carbocyclic agents of different types in admixture
C22B3/1666
Leaching with heterocyclic compounds
C22B3/1675
Leaching with a mixture of organic agents wherein one agent at least is a heterocyclic compounds
C22B3/1683
Leaching with organo-metallic compounds
C22B3/1691
Leaching with a mixture of organic agents wherein at least one agent is an organo-metallic compound
C22B3/18
with the aid of micro-organisms or enzymes
C22B3/20
Treatment or purification of solutions
C22B3/205
using adducts or inclusion complexes
C22B3/22
by physical processes
C22B3/24
by adsorption on solid substances
C22B3/42
by ion-exchange extraction
C22B3/44
by chemical processes
C22B3/46
by substitution
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last 30 patents
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Patent Grant
Application of cuprous sulfide in recovery of Au (III) from aqueous...
Patent number
11,970,755
Issue date
Apr 30, 2024
KUNMING UNIVERSITY OF SCIENCE AND TECHNOLOGY
Yunlong Chen
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Lithium metal powder, preparing method thereof, and electrode compr...
Patent number
11,965,226
Issue date
Apr 23, 2024
NATIONAL YANG MING CHIAO TUNG UNIVERSITY
Jeng-Kuei Chang
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
Sulfur dioxide depolarized electrolysis and electrolyzer therefore
Patent number
11,965,258
Issue date
Apr 23, 2024
Peregrine Hydrogen Inc.
Stefan Omelchenko
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Microwave chemical method for totally extracting fluorine and rare...
Patent number
11,957,996
Issue date
Apr 16, 2024
Sichuan Normal University
Shilin Zhao
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Enhanced separation of rare earth metals
Patent number
11,958,754
Issue date
Apr 16, 2024
Seren Technologies Limited
Peter Nockemann
C01 - INORGANIC CHEMISTRY
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Patent Grant
Process for making modified DTPA-associated organosilica media for...
Patent number
11,959,154
Issue date
Apr 16, 2024
Wayne State University
Timothy M. Dittrich
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Lithium ion battery scrap treatment method
Patent number
11,961,980
Issue date
Apr 16, 2024
JX Metals Corporation
Junichi Arakawa
B09 - DISPOSAL OF SOLID WASTE RECLAMATION OF CONTAMINED SOIL SOIL
Information
Patent Grant
Method for separating copper from nickel and cobalt
Patent number
11,959,151
Issue date
Apr 16, 2024
Sumitomo Metal Mining Co., Ltd.
Tatsuya Higaki
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Method for clean metallurgy of molybdenum
Patent number
11,959,152
Issue date
Apr 16, 2024
Central South University
Zhongwei Zhao
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Method for producing battery-grade nickel sulfate by using laterite...
Patent number
11,952,288
Issue date
Apr 9, 2024
GUANGDONG BRUNP RECYCLING TECHNOLOGY CO., LTD.
Changdong Li
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Ion exchange devices for lithium extraction
Patent number
11,951,467
Issue date
Apr 9, 2024
LILAC SOLUTIONS, INC.
David Henry Snydacker
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
System and method for activating deep raffinate injection based on...
Patent number
11,948,103
Issue date
Apr 2, 2024
Freeport Minerals Corporation
Dana Geislinger
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Process for obtaining vanadium oxide from a gasifier slag field
Patent number
11,945,728
Issue date
Apr 2, 2024
Reliance Industries Limited
Sateesh Daggupati
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Ion exchange reactor with particle traps for lithium extraction
Patent number
11,944,962
Issue date
Apr 2, 2024
LILAC SOLUTIONS, INC.
David Henry Snydacker
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Method for extracting lithium from carbonate clay type lithium ore...
Patent number
11,939,645
Issue date
Mar 26, 2024
INSTITUTE OF GEOCHEMISTRY, CHINESE ACADEMY OF SCIENCES
Hanjie Wen
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
System and method including multi-circuit solution extraction for r...
Patent number
11,932,919
Issue date
Mar 19, 2024
Freeport Minerals Corporation
Jason M Morgan
C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
Information
Patent Grant
Device for trapping hydrogen
Patent number
11,932,920
Issue date
Mar 19, 2024
CONSTELLIUM ISSOIRE
Jocelyn Prigent
C21 - METALLURGY OF IRON
Information
Patent Grant
Method for producing aqueous solution containing nickel or cobalt
Patent number
11,926,882
Issue date
Mar 12, 2024
KOREA ZINC CO., LTD.
Heon Sik Choi
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Method of recovering cobalt and nickel
Patent number
11,929,473
Issue date
Mar 12, 2024
Mitsubishi Materials Corporation
Hiroki Muraoka
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Systems and methods for separating radium from lead, bismuth, and t...
Patent number
11,925,879
Issue date
Mar 12, 2024
Battelle Memorial Institute
Matthew J. O'Hara
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Method for dissolving metals by photocatalysis
Patent number
11,920,212
Issue date
Mar 5, 2024
SHANGHAI NORMAL UNIVERSITY
Zhenfeng Bian
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Plant and method for the recovery of exhausted refractory material
Patent number
11,920,214
Issue date
Mar 5, 2024
DEREF S.P.A.
Giorgio Fasolini
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Method for obtaining concentrated brine of minimum impurity content...
Patent number
11,920,211
Issue date
Mar 5, 2024
Daniel Ernesto Galli
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Method for recycling battery by incomplete extraction
Patent number
11,920,213
Issue date
Mar 5, 2024
GUANGDONG BRUNP RECYCLING TECHNOLOGY CO., LTD.
Haijun Yu
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Systems and methods for closed-loop recycling of a liquid component...
Patent number
11,923,518
Issue date
Mar 5, 2024
Clarios Advanced Germany Gmbh & Co. KG
Eberhard Meissner
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Method for leaching rare earth elements and critical minerals from...
Patent number
11,913,090
Issue date
Feb 27, 2024
University of North Dakota
Nolan Theaker
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Alkaline solution method for recovering rare earth elements
Patent number
11,905,573
Issue date
Feb 20, 2024
Mark Berggren
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Method for processing titanium extraction slag and carbon extracted...
Patent number
11,905,575
Issue date
Feb 20, 2024
Southwest University of Science and Technology
Hongjuan Sun
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Modular extraction apparatus
Patent number
11,904,276
Issue date
Feb 20, 2024
International Battery Metals, Ltd.
John L. Burba
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Recycling process for isolating and recovering rare earth metals an...
Patent number
11,909,016
Issue date
Feb 20, 2024
American Hyperform, Inc.
William Novis Smith
C01 - INORGANIC CHEMISTRY
Patents Applications
last 30 patents
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Patent Application
A METHOD FOR TARGET METAL REMOVAL VIA SULPHIDE PRECIPITATION
Publication number
20240145805
Publication date
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LI-CYCLE CORP.
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C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
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PROCESS FOR LEACHING METAL SULFIDES WITH REAGENTS HAVING THIOCARBON...
Publication number
20240141456
Publication date
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Jetti Resources, LLC
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C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
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Publication number
20240139683
Publication date
May 2, 2024
International Battery Metals, Ltd.
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C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
Method for biological recovery of metals from electrical and electr...
Publication number
20240141457
Publication date
May 2, 2024
UNIVERSITAT POLITECNICA DE CATALUNYA
Antonio David DORADO CASTAÑO
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
SYSTEMS AND METHODS FOR EXTRACTING RARE EARTH ELEMENTS WITH ENGINEE...
Publication number
20240132993
Publication date
Apr 25, 2024
Cornell University
Buz BARSTOW
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
APPLICATION OF CUPROUS SULFIDE IN RECOVERY OF AU (III) FROM AQUEOUS...
Publication number
20240132996
Publication date
Apr 25, 2024
Kunming University of Science and Technology
Yunlong Chen
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
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Publication number
20240132998
Publication date
Apr 25, 2024
U.S. Borax Inc.
Amit Patwardhan
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
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Publication number
20240132991
Publication date
Apr 25, 2024
James G. Blencoe
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
NOVEL PSEUDOMONAS STRAIN FOR METAL RECOVERY
Publication number
20240132992
Publication date
Apr 25, 2024
BRAIN BIOTECH AG
Esther GABOR
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
METHOD FOR RECOVERY OF METAL-CONTAINING MATERIAL FROM A COMPOSITE M...
Publication number
20240132994
Publication date
Apr 25, 2024
Coogee Titanium Pty Ltd
Daniel Jewell
B22 - CASTING POWDER METALLURGY
Information
Patent Application
SYSTEM AND METHOD FOR ACTIVATING DEEP RAFFINATE INJECTION BASED ON...
Publication number
20240124951
Publication date
Apr 18, 2024
Freeport Minerals Corporation
Dana Geislinger
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
METHOD FOR PRODUCING LOW-ARSENIC COPPER CONCENTRATE
Publication number
20240124952
Publication date
Apr 18, 2024
NITTETSU MINING CO., LTD.
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C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
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Publication number
20240124998
Publication date
Apr 18, 2024
Kunming University of Science and Technology
Yun LEI
C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
Information
Patent Application
MATERIALS AND METHODS FOR EXTRACTION OF PRECIOUS METALS USING GRAPH...
Publication number
20240124329
Publication date
Apr 18, 2024
G6 Materials Corp.
Daniel Stolyarov
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
SYSTEM AND METHOD FOR ACTIVATING DEEP RAFFINATE INJECTION BASED ON...
Publication number
20240127135
Publication date
Apr 18, 2024
Freeport Minerals Corporation
Dana Geislinger
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
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Publication number
20240124953
Publication date
Apr 18, 2024
GUANGDONG BRUNP RECYCLING TECHNOLOGY CO., LTD
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C01 - INORGANIC CHEMISTRY
Information
Patent Application
Method for Obtaining Inorganic Sorbent for Extraction of Lithium fr...
Publication number
20240123436
Publication date
Apr 18, 2024
Pavel Kudryavtsev
C01 - INORGANIC CHEMISTRY
Information
Patent Application
VALUABLE METAL RECOVERY METHOD AND RECOVERY APPARATUS
Publication number
20240128530
Publication date
Apr 18, 2024
MITSUBISHI MATERIALS CORPORATION
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C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
SOLVENT EXTRACTION METHOD USING TWO-STAGE EXTRACTION FOR SEPARATION...
Publication number
20240117461
Publication date
Apr 11, 2024
ECOPRO MATERIALS, CO., LTD.
Dong Hee KIM
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
METHOD OF SELECTIVELY LEACHING LITHIUM AND ALUMINUM FROM MIXED CARB...
Publication number
20240117466
Publication date
Apr 11, 2024
ECOPRO MATERIALS, CO., LTD.
Dong Hee KIM
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
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Publication number
20240120565
Publication date
Apr 11, 2024
GREEN LI-ION PTE. LTD.
Reza KATAL
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
Chemical Processing Of Sewage Sludge Ash
Publication number
20240117462
Publication date
Apr 11, 2024
EasyMining Sweden AB
Cristian TUNSU
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
HYDROMETALLURGICAL RECOVERY METHOD FOR NICKEL SULFATE
Publication number
20240117460
Publication date
Apr 11, 2024
ECOPRO MATERIALS, CO., LTD.
Dong Hee KIM
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
SOLVENT EXTRACTION METHOD FOR SEPARATION AND RECOVERY OF NICKEL, CO...
Publication number
20240117463
Publication date
Apr 11, 2024
ECOPRO MATERIALS, CO., LTD.
Dong Hee KIM
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
ELECTROKINETIC DEVICE AND METHOD FOR IN-SITU LEACHING OF URANIUM
Publication number
20240117467
Publication date
Apr 11, 2024
University of South China
Chunguang LI
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
AUTOCLAVE AND PRESSURE OXIDATION METHOD
Publication number
20240110258
Publication date
Apr 4, 2024
Metso Outotec Finland Oy
Marko Latva-Kokko
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
Water Processing Method and Unit
Publication number
20240109791
Publication date
Apr 4, 2024
Lithium Harvest ApS
Paw JUUL
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
SULFUR DIOXIDE DEPOLARIZED ELECTROLYSIS AND ELECTROLYZER THEREFORE
Publication number
20240110305
Publication date
Apr 4, 2024
Peregrine Hydrogen Inc.
Stefan Omelchenko
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
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Patent Application
PROCESS FOR CATHODE ACTIVE MATERIAL PRECURSOR PREPARATION
Publication number
20240102127
Publication date
Mar 28, 2024
NORTHVOLT AB
Mahmood ALEMRAJABI
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
SOLVENT EXTRACTION METHOD FOR SEPARATION AND RECOVERY OF NICKEL, CO...
Publication number
20240102128
Publication date
Mar 28, 2024
ECOPRO MATERIALS, CO., LTD.
Dong Hee KIM
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...