ClassID:

119252

C22B3/165 - CPC Classification

Classification description:

Extraction of metal compounds from ores or concentrates by wet processes by leaching in organic solutions; Leaching with acyclic or carbocyclic agents; Leaching with acyclic or carbocyclic agents of a single type with organic acids

Recent Application in this class:
#1
20260035763
2026-02-05

METHOD FOR RECYCLING THE CRITICAL METALS FROM SPENT LITHIUM-ION BATTERIES

#2
20250340967
2025-11-06

INTENSIFIED SEQUENTIAL RECOVERY OF RARE EARTH ELEMENTS AND OTHER CRITICAL METALS FROM WASTE

#3
20250223669
2025-07-10

RARE EARTH PRODUCTION FROM COAL FEEDSTOCKS

#4
20250223668
2025-07-10

BENEFICIATION METHOD FOR HIGH CLAY TYPE LOW-GRADE MANGANESE CARBONATE ORE

#5
20250197964
2025-06-19

PRECIOUS METALS RECOVERY

#6
20250146101
2025-05-08

SELECTIVE SOLUBILIZATION OF GANGUE FROM NICKEL SULFIDES USING BIOSOLVENTS

#7
20250146100
2025-05-08

SELECTIVE SOLUBILIZATION OF GANGUE FROM NICKEL SULFIDES USING ORGANIC ACID SOLUTIONS

#8
20250003025
2025-01-02

METHODS AND SYSTEMS FOR LEACHING A METAL-BEARING MATERIAL

#9
20240392413
2024-11-28

Methods Of Recycling Target Elements From Metallic Components

#10
20240392412
2024-11-28

USE OF ORGANIC ACID-CONTAINING LEACHING AGENT IN LEACHING FROM ION-ADSORPTION TYPE RARE EARTH ORE AND METHOD FOR LEACHING FULL-PHASE RARE EARTH

#11
20240376567
2024-11-14

PRECIOUS METALS RECOVERY

#12
20240344169
2024-10-17

METAL RECOVERING METHOD

#13
20240344168
2024-10-17

METAL RECOVERY APPARATUS AND METAL RECOVERY METHOD

#14
20240309490
2024-09-19

Metal ION Recovery from a Bound Chelate/Sequestering-Agent Solution

#15
20240301532
2024-09-12

SELECTIVE METAL RECOVERY

#16
20240301529
2024-09-12

METHODS AND SYSTEMS FOR LEACHING A METAL-BEARING MATERIAL

#17
20240279831
2024-08-22

METHOD AND ELECTROCHEMICAL SYSTEM FOR RECYCLING SPENT LITHIUM-ION BATTERY

#18
20240279774
2024-08-22

COMPOSITIONS COMPRISING PROTEINS AND METHODS OF USE THEREOF FOR RARE EARTH ELEMENT SEPARATION

#19
20240274914
2024-08-15

METHOD OF RECOVERING METAL IONS FROM BATTERIES

#20
20240274913
2024-08-15

Method for recovering waste lithium cobalt oxide battery

#21
20240194960
2024-06-13

GREEN METHOD FOR RECOVERING LITHIUM AND IRON FROM LITHIUM BATTERIES

#22
20240117466
2024-04-11

METHOD OF SELECTIVELY LEACHING LITHIUM AND ALUMINUM FROM MIXED CARBONATE PRECIPITATE

#23
20240076548
2024-03-07

METHOD FOR RECYCLING HYDROPHOBIC DEEP EUTECTIC SOLVENT AND NICKEL LEACHING METHOD

#24
20240002972
2024-01-04

LEACHING OF PRECIOUS AND CHALCOPHILE METALS

#25
20230416872
2023-12-28

PRECIOUS METALS RECOVERY

#26
20230323509
2023-10-12

Weak Acid Lixiviants for Recovery of Alkaline Earth Metals

#27
20230187720
2023-06-15

Hydrometallurgical Recycling of Lithium-Ion Battery Electrodes

#28
20230115288
2023-04-13

PROCESSING FOR THE EXTRACTION OF RARE EARTH ELEMENTS

#29
20230090475
2023-03-23

Methods and systems for leaching a metal-bearing material

#30
20230086259
2023-03-23

METHODS AND SYSTEMS FOR LEACHING A METAL-BEARING MATERIAL USING HYDROGEN PEROXIDE AND CITRIC ACID

#31
20230042346
2023-02-09

Organic acid solution having at least one ionic salt and at least one organic acid which is used for rare earth extraction

#32
20230022267
2023-01-26

PRECIOUS METAL RECOVERY FROM CARBON FINES

#33
20230010128
2023-01-12

METHOD OF COLLECTING RARE EARTH ELEMENTS

#34
20220136079
2022-05-05

METHOD OF EXTRACTING METAL IONS FROM BATTERIES

#35
20220074019
2022-03-10

Process for Extraction of Recoverable Rare Earth Elements (REE) Using Organic Acids and Chelating Compounds

#36
20210347652
2021-11-11

Method for separation of rare earth elements from coal ash using supercritical carbon dioxide

#37
20200407821
2020-12-31

Efficient copper leaching using alkanesulfonic acids

#38
20200277683
2020-09-03

Methods for recovering copper, cobalt, indium and nickel with amine containing lixiviant

#39
20190284659
2019-09-19

Precious metals recovery

#40
20190169710
2019-06-06

Method for extracting rare earth elements contained in permanent magnets

#41
20190017145
2019-01-17

Methods, materials and techniques for precious metal recovery

#42
20180309174
2018-10-25

Method for acid dissolution of LiCoOcontained in spent lithium-ion batteries

#43
20180010208
2018-01-11

Removal of radionuclides from mixtures

#44
20170260606
2017-09-14

Processing for the extraction of rare earth elements

#45
20170197842
2017-07-13

Using method of waste silicon slurry and products obtained therefrom

#46
20160308261
2016-10-20

ZERO LEAD POLLUTION PROCESS FOR RECYCLING USED LEAD ACID BATTERIES

#47
20160298209
2016-10-13

Leach aid for metal recovery

#48
20160237524
2016-08-18

Precious metals recovery

#49
20160194734
2016-07-07

Process for copper and/or precious metal recovery

#50
20160032422
2016-02-04

PROCESS FOR PREFERENTIAL DISSOLUTION OF IRON IN THE PRESENCE OF TITANIUM

#51
20160002750
2016-01-07

Hydrometallurgical process for recovery of metals and/or semimetals from waste materials containing compound semiconductor materials and/or back contact materials and/or transparent electrically conducting oxides (TCOS)

#52
20150322547
2015-11-12

Alkali metal and/or alkali earth metal extraction method

#53
20150211094
2015-07-30

Method for processing ash, particularly fly ash

#54
20140294715
2014-10-02

Method of manufacturing ferrous oxide nanoparticle, method of forming carbon nanotube, and ferrous oxide nanoparticle

#55
20140131220
2014-05-15

Recovering lead from a lead material including lead sulfide

#56
20130333524
2013-12-19

Method for leaching copper oxide, replacing sulfuric acid with a non-polluting organic leaching agent

#57
20120177551
2012-07-12

Selective leach recovery of minerals from composite ores

#58
20120067174
2012-03-22

PROCESSES FOR EXTRACTION OF NICKEL WITH IRON-COMPLEXING AGENT

#59
20110217222
2011-09-08

Process for the acid digestion of metal-containing compounds

#60
20110142735
2011-06-16

Method for separating radioactive copper using chelating-ion exchange resin

#61
20110059339
2011-03-10

METHOD FOR TREATING LITHIUM BATTERIES

#62
20100193467
2010-08-05

METHOD FOR THE TREATMENT AND REUSE OF A STRIPPER SOLUTION

#63
20100086454
2010-04-08

Process for recovering titanium dioxide

#64
20100043600
2010-02-25

Reclaiming of lead in form of high purity lead compound from recovered electrode paste slime of dismissed lead batteries and/or of lead minerals

#65
20100040938
2010-02-18

Lead recycling

#66
20100034715
2010-02-11

Recovery of lead in form of high purity lead carbonates from spent lead batteries incl. electrode paste

#67
20090257931
2009-10-15

METHOD OF RECOVERING NOBLE METALS AND RECOVERING SYSTEM FOR NOBLE METALS

#68
20090078087
2009-03-26

PROCESS FOR THE ACID DIGESTION OF METAL-CONTAINING COMPOUNDS

#69
20080236337
2008-10-02

Method for recovering rhodium

#70
20080050295
2008-02-28

Lithium Battery Treatment Method

#71
20060292309
2006-12-28

Method for clarification of wood having been treated with chemical containing copper, chromium or arsenic

#72
20060037889
2006-02-23

Apparatus for reclamation of precious metals from circuit board scrap

#73
20060024223
2006-02-02

Method of separating and purifying cesium-131 from barium carbonate

#74
20050232835
2005-10-20

Anti-oxidation method for sulfide minerals in sulfide ore

#75
20050132844
2005-06-23

Method for producing indium powder

#76
18948585
2025-04-29

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