ClassID:

119412

C22B21/0015 - CPC Classification

Classification description:

Obtaining aluminium by wet processes

Sub-classes:
Recent Application in this class:
#1
20260091986
2026-04-02

METHOD FOR IMPROVING PARTICLE SIZE AND MORPHOLOGY OF NEUTRALIZER FOR LATERITE NICKEL ORE HYDROMETALLURGY

#2
20260070800
2026-03-12

PROCESS AND SYSTEM FOR LITHIUM PRODUCTION

#3
20260022023
2026-01-22

PROCESS AND SYSTEM FOR LITHIUM PRODUCTION

#4
20260015247
2026-01-15

PROCESS AND SYSTEM FOR LITHIUM PRODUCTION

#5
20250388512
2025-12-25

HIGH EFFICIENCY ACID-BASE LEACHING METHODS AND SYSTEMS

#6
20250388481
2025-12-25

SYSTEMS AND METHODS FOR BENEFICIATION OF BAUXITE RESIDUE

#7
20250333816
2025-10-30

METHOD FOR EXTRACTING ALUMINUM

#8
20250303422
2025-10-02

PROCESS, APPARATUS, AND SYSTEM FOR RECOVERING MATERIALS FROM BATTERIES

#9
20250283191
2025-09-11

METHODS AND SYSTEMS OF ACID-BASE LEACHING FOR INDUSTRIAL BYPRODUCTS

#10
20250282633
2025-09-11

SEQUENTIAL HYDROMETALURGICAL RECOVERY OF METAL VALUES WITH SEQUESTERED CARBON

#11
20250276290
2025-09-04

APPARATUS AND METHOD FOR SEPARATION OF METAL-BEARING PHASES USING ELECTRODIALYSIS

#12
20250163537
2025-05-22

TREATMENT SYSTEM FOR REMOVING IRON-ALUMINUM-CHROMIUM REACTION PRODUCTS IN LEACHING SOLUTION OF LATERITE NICKEL ORE

#13
20250146103
2025-05-08

Method for recovering iron and aluminum from red mud

#14
20250128236
2025-04-24

CROSSLINKED STRUCTURE, METAL-TRAPPING MATERIAL INCLUDING SAID CROSSLINKED STRUCTURE, METHOD FOR RECOVERING METAL USING SAID METAL-TRAPPING MATERIAL, AND METHOD FOR MANUFACTURING SAID CROSSLINKED STRUCTURE

#15
20250109456
2025-04-03

METHOD OF EXTRACTING LITHIUM FROM SPODUMENE AND MEANWHILE RECOVERING LOW IRON AND LOW SULFUR SILICON ALUMINUM MICRO-POWDER, HIGH PURITY GYPSUM, TANTALUM NIOBIUM CONCENTRATE AND LITHIUM RICH IRON MATERIAL

#16
20240409425
2024-12-12

PROCESS AND SYSTEM FOR LITHIUM PRODUCTION

#17
20240247337
2024-07-25

PROCESS FOR CO-PRODUCING LITHIUM, ALUMINUM, AND SILICON-OXYGEN (Si-O) MATERIALS

#18
20240132991
2024-04-25

Process for extracting lithium, aluminum, and silicon materials from a hard rock source

#19
20240043963
2024-02-08

APPARATUS AND METHOD FOR METAL EXTRACTION

#20
20230220516
2023-07-13

PROCESS FOR RECOVERING TITANIUM DIOXIDE

#21
20220384867
2022-12-01

METHOD FOR SEPARATION, SEGREGATION, AND RECOVERY OF CONSTITUENT MATERIALS FROM ELECTROCHEMICAL CELLS

#22
20220349025
2022-11-03

Methods for recovering metals using oxalate compounds

#23
20220152626
2022-05-19

PROCESS, APPARATUS, AND SYSTEM FOR RECOVERING MATERIALS FROM BATTERIES

#24
20210192272
2021-06-24

Decision-making method of comprehensive alumina production indexes based on multi-scale deep convolutional network

#25
20210078013
2021-03-18

Process, apparatus, and system for recovering materials from batteries

#26
20210078012
2021-03-18

Process, apparatus, and system for recovering materials from batteries

#27
20210070624
2021-03-11

METHOD FOR CONTROLLING THE CONCENTRATION OF IMPURITIES IN BAYER LIQUORS

#28
20200331003
2020-10-22

Process, apparatus, and system for recovering materials from batteries

#29
20200331002
2020-10-22

Process, apparatus, and system for recovering materials from batteries

#30
20200299145
2020-09-24

Method for aluminum-enhanced dealkalization of red mud and separation and recovery of aluminum and iron

#31
20200157655
2020-05-21

PROCESSING METHODS AND PROCESSING APPARATUS

#32
20200078796
2020-03-12

Process, apparatus, and system for recovering materials from batteries

#33
20170260062
2017-09-14

METHODS FOR PURIFYING ALUMINIUM IONS

#34
20170183790
2017-06-29

PROCESS FOR PURE ALUMINUM PRODUCTION FROM ALUMINUM-BEARING MATERIALS

#35
20170022069
2017-01-26

Method for recovery of the constituent components of laterites

#36
20160355907
2016-12-08

Method for crushing hard tungsten carbide scraps

#37
20160340757
2016-11-24

Scandium recovery method

#38
20160304987
2016-10-20

Processes for preparing alumina and various other products

#39
20160273070
2016-09-22

PROCESSES FOR PREPARING ALUMINA AND VARIOUS OTHER PRODUCTS

#40
20160273069
2016-09-22

Methods for purifying aluminium ions

#41
20160230248
2016-08-11

Methods for enhancing production of aluminum hydroxide in an aluminum hydroxide production process

#42
20160186292
2016-06-30

Process for cold hydrochemical decomposition of sodium hydrogen aluminosilicate

#43
20160160317
2016-06-09

METHOD AND SYSTEM FOR REMOVING SILICA FROM AN ORE

#44
20160153071
2016-06-02

Processes for recovering rare earth elements from aluminum-bearing materials

#45
20160153067
2016-06-02

PROCESSES FOR PREPARING TITANIUM OXIDE AND VARIOUS OTHER PRODUCTS

#46
20160122196
2016-05-05

Use of polyols as scale control reagents in the mining processes

#47
20150307962
2015-10-29

Novel Hydrogen-Evolving Polymer-Capped Aluminum Nanoparticles, Composites, and Methods of Synthesis Using Lithium Aluminum Hydride

#48
20150299820
2015-10-22

Method for recovery of the constituent components of laterites

#49
20150252447
2015-09-10

Method for producing alumina

#50
20150240328
2015-08-27

Alternative additives to enhance slurry dewatering

#51
20150225808
2015-08-13

Processes for preparing alumina and magnesium chloride by HCl leaching of various materials

#52
20150218720
2015-08-06

PROCESS FOR TREATING MAGNESIUM-BEARING ORES

#53
20150203936
2015-07-23

Method for producing alumina

#54
20150175435
2015-06-25

Method for producing alumina

#55
20150159239
2015-06-11

Processes for preparing titanium oxide and various other products

#56
20140369904
2014-12-18

Processes for preparing alumina and various other products

#57
20140301920
2014-10-09

Methods for separating iron ions from aluminum ions

#58
20140301919
2014-10-09

MIXED CHLORIDE PROCESS FOR THE EXTRACTION OF ALUMINA

#59
20140286841
2014-09-25

PROCESSES FOR RECOVERING RARE EARTH ELEMENTS FOR ALUMINUM-BEARING MATERIALS

#60
20140271416
2014-09-18

Neopolyols suitable for crystal growth modification in the Bayer process

#61
20140186240
2014-07-03

Process for neutralizing bauxite dissolution residual substance and process for producing aluminum hydroxide

#62
20130343970
2013-12-26

REDUCING ALUMINOSILICATE SCALE IN THE BAYER PROCESS

#63
20130233130
2013-09-12

PROCESS FOR EXTRACTING ALUMINUM FROM ALUMINOUS ORES

#64
20130195739
2013-08-01

Cross-linked ethylsulfonated dihydroxypropyl cellulose

#65
20130052103
2013-02-28

Processes for extracting aluminum from aluminous ores

#66
20120237418
2012-09-20

Processes for extracting aluminum from aluminous ores

#67
20120000790
2012-01-05

Electrorecovery of metals

#68
20110150754
2011-06-23

Water-in-oil-in-water emulsions of hydroxamated polymers and methods for using the same

#69
20110076209
2011-03-31

Reducing aluminosilicate scale in the Bayer process

#70
20110044869
2011-02-24

Processes for extracting aluminum and iron from aluminous ores

#71
20100272632
2010-10-28

Process for neutralizing bauxite dissolution residual substance and process for producing aluminum hydroxide

#72
20100150799
2010-06-17

Processes for extracting aluminum and iron from aluminous ores

#73
20090130006
2009-05-21

Use of polyols as scale control reagents in the mining processes

#74
20070278106
2007-12-06

Aluminum Production Process

#75
20060278358
2006-12-14

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

#76
20060191853
2006-08-31

Water-in-oil-in-water emulsions of hydroxamated polymers and methods for using the same

#77
18870504
2026-03-31

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