ClassID:

120789

C25B1/16 - CPC Classification

Classification description:

Electrolytic production of inorganic compounds or non-metals; Products; Alkali metal compounds Hydroxides

Recent Application in this class:
#1
20260131283
2026-05-14

CRYSTALLIZER DEVICES AND RELATED SYSTEMS AND METHODS FOR DIRECT AIR CAPTURE OF CO2

#2
20260117402
2026-04-30

ELECTROLYTIC SYSTEMS COMPRISING GAS DIFFUSION ANODES AND METHODS OF OPERATING THEREOF

#3
20260116746
2026-04-30

Nuclear Driven Hydrothermal Decomposition of an Inert Sodium Salt for the Production Of Hydrogen

#4
20260108850
2026-04-23

LITHIUM RECOVERY FROM LIQUID STREAMS USING SOLUTE-PERMEABLE MEMBRANES

#5
20260085431
2026-03-26

ELECTROCHEMICAL PRODUCTION OF HYDROGEN AND LITHIUM HYDROXIDE UNDER DEFINED FLOW CONDITIONS

#6
20260071333
2026-03-12

PRODUCTION OF HYDROGEN AND SOLID LITHIUM HYDROXIDE

#7
20260062305
2026-03-05

LITHIUM PRODUCTION COUPLED TO ACID AND BASE PRODUCTION

#8
20260055526
2026-02-26

PROCESSES FOR PREPARING LITHIUM HYDROXIDE

#9
20260035805
2026-02-05

Electrochemical Extraction and Conversion of Metals from Liquid Solutions

#10
20250354274
2025-11-20

ALKALI HYDROXIDE PRODUCTION FROM ALKALI SULFATE WITH HALOGEN OR CARBOXYLIC ACID INTERMEDIATES

#11
20250323335
2025-10-16

SPENT BATTERY MATERIALS RECYCLING METHOD

#12
20250282633
2025-09-11

SEQUENTIAL HYDROMETALURGICAL RECOVERY OF METAL VALUES WITH SEQUESTERED CARBON

#13
20250281878
2025-09-11

PROCESS FOR PRODUCING A CARBON PRODUCT AND CARBON FIBERS THROUGH A CARBON NEUTRAL OR CARBON NEGATIVE PROCESS

#14
20250276990
2025-09-04

MARINE PLANT SYSTEM AND METHOD FOR CONTROLLING THE SAME

#15
20250236963
2025-07-24

ALKALI HYDROXIDE PRODUCTION FROM ALKALI SULFATE WITH HALOGEN OR CARBOXYLIC ACID INTERMEDIATES

#16
20250198019
2025-06-19

CONFIGURATION FOR ULTRA HIGH PRESSURE ELECTROLYTIC ELUENT GENERATORS

#17
20250192202
2025-06-12

Electrochemical Reactor, Electrochemical Reactor Systems, Processes for Electrochemical Reactions, and Methods Using Same

#18
20250186986
2025-06-12

RECHARGE SOLUTION FOR ZIRCONIUM OXIDE

#19
20250179658
2025-06-05

METHOD OF PRODUCING A METAL BOROHYDRIDE OR BORIC ACID FROM METAL METABORATE

#20
20250167271
2025-05-22

Sodium Formate Hydrogen Extraction System Operation And Production Of Hydrogen And Methanol

#21
20250108330
2025-04-03

ELECTROCHEMICAL SYSTEM FOR CARBON DIOXIDE CAPTURE

#22
20250100894
2025-03-27

PROCESSES FOR PREPARING LITHIUM CARBONATE

#23
20250099915
2025-03-27

Electro-Pressure Membrane Method for Recovery and Concentration of Lithium from Aqueous Sources

#24
20250092537
2025-03-20

LI RECOVERY PROCESSES AND ONSITE CHEMICAL PRODUCTION FOR LI RECOVERY PROCESSES

#25
20250034736
2025-01-30

SUPPLYING SYSTEM FOR FEEDING AN ELECTROLYSIS UNIT AND RELATED INSTALLATION AND METHOD

#26
20250011950
2025-01-09

LI RECOVERY PROCESSES AND ONSITE CHEMICAL PRODUCTION FOR LI RECOVERY PROCESSES

#27
20250011949
2025-01-09

LI RECOVERY PROCESSES AND ONSITE CHEMICAL PRODUCTION FOR LI RECOVERY PROCESSES

#28
20250007022
2025-01-02

METHOD FOR RECOVERING LITHIUM FROM WASTE LITHIUM-ION BATTERIES

#29
20250002363
2025-01-02

PROCESSES FOR PRODUCING LITHIUM COMPOUNDS USING REVERSE OSMOSIS

#30
20240417269
2024-12-19

PREPARATION OF LITHIUM HYDROXIDE

#31
20240360572
2024-10-31

ELECTRODE FOR THE ELECTROLYTIC EVOLUTION OF HYDROGEN

#32
20240309531
2024-09-19

TWO-COMPARTMENT ELECTROLYZER

#33
20240309520
2024-09-19

MEMBRANE-BASED ALKALI METAL SALT PRECIPITATION

#34
20240304885
2024-09-12

A RECYCLING METHOD FOR RECOVERY OF LITHIUM FROM MATERIALS COMPRISING LITHIUM AND ONE OR MORE TRANSITION METALS

#35
20240271292
2024-08-15

PROCESS FOR OBTAINING TEREPHTHALIC ACID AND RECOVERING SODIUM HYDROXIDE FROM A SODIUM TEREPHTHALATE SOLUTION PRODUCED FROM REUSED POLYETHYLENE TEREPHTHALATE (PET)

#36
20240240330
2024-07-18

PROCESS FOR PRODUCING LITHIUM HYDROXIDE

#37
20240229266
2024-07-11

PROCESSES FOR PREPARING LITHIUM HYDROXIDE

#38
20240200217
2024-06-20

ELECTROCHEMICAL CELL AND PROCESS FOR PRODUCING METAL AND A CO-PRODUCT FROM METAL OXIDE AND AN AQUEOUS HALIDE SALT

#39
20240191374
2024-06-13

SYSTEM AND METHOD FOR CONTROLLING A MULTI-STATE ELECTROCHEMICAL CELL

#40
20240141526
2024-05-02

BROMINE AND LITHIUM EXTRACTION FROM AQUEOUS SOURCES

#41
20240131479
2024-04-25

NANOBUBBLE DISPERSIONS GENERATED IN ELECTROCHEMICALLY ACTIVATED SOLUTIONS

#42
20240124986
2024-04-18

METHOD FOR PRODUCING ALKALI METAL/ALKALINE EARTH METAL HYDROXIDE AND APPLICATION OF SAID PRODUCTION METHOD TO CARBOXYLATE WASTE RECYCLING TECHNOLOGY

#43
20240092647
2024-03-21

PROCESSING OF LITHIUM CONTAINING BRINES

#44
20240084464
2024-03-14

LI RECOVERY PROCESSES AND ONSITE CHEMICAL PRODUCTION FOR LI RECOVERY PROCESSES

#45
20240084461
2024-03-14

Method for Preparing Lithium Hydroxide, and Facility for Implementing the Method

#46
20240068113
2024-02-29

METHODS FOR TREATING LITHIUM-CONTAINING MATERIALS

#47
20240067522
2024-02-29

RESOURCE UTILIZATION METHOD OF CRUDE SODIUM SULFATE

#48
20240011167
2024-01-11

LI RECOVERY PROCESSES AND ONSITE CHEMICAL PRODUCTION FOR LI RECOVERY PROCESSES

#49
20240003019
2024-01-04

METHOD AND SYSTEM FOR RECYCLING LITHIUM ION BATTERIES USING ELECTROCHEMICAL LITHIUM ION PURIFICATION

#50
20230416874
2023-12-28

Processes for preparing lithium carbonate

#51
20230392271
2023-12-07

OPERATION ASSISTANCE APPARATUS, OPERATION ASSISTANCE SYSTEM, OPERATION ASSISTANCE METHOD, AND COMPUTER READABLE MEDIUM

#52
20230382754
2023-11-30

Simultaneous CO2 Capture, Mineralization, and Lithium and Other Metal Extraction from Brine

#53
20230382753
2023-11-30

PROCESSES FOR PREPARING LITHIUM CARBONATE

#54
20230349055
2023-11-02

Li recovery processes and onsite chemical production for Li recovery processes

#55
20230311075
2023-10-05

Membrane Electrode Assembly with a Selectively Permeable Barrier Layer

#56
20230304172
2023-09-28

Li recovery processes and onsite chemical production for Li recovery processes

#57
20230304166
2023-09-28

CHEMICAL CALCIUM HYDROXIDE MANUFACTURING FOR CEMENT PRODUCTION USING ELECTROCHEMICAL SEPARATION DEVICES

#58
20230249133
2023-08-10

ELECTROCHEMICAL HYDROXIDE AND CARBON DIOXIDE REGENERATION METHOD AND APPARATUS

#59
20230234848
2023-07-27

PROCESS TO PRODUCE LITHIUM COMPOUNDS

#60
20230220568
2023-07-13

MULTILAYERED ANODE IN LIQUID BASED ELECTROLYSIS

#61
20230212763
2023-07-06

Configuration for ultra high pressure electrolytic eluent generators

#62
20230112608
2023-04-13

NANOBUBBLE DISPERSIONS GENERATED IN ELECTROCHEMICALLY ACTIVATED SOLUTIONS

#63
20230111628
2023-04-13

Nanobubble dispersions generated in electrochemically activated solutions

#64
20230080642
2023-03-16

METHODS FOR TREATING LITHIUM-CONTAINING MATERIALS

#65
20230073910
2023-03-09

MICROBIAL ELECTROCHEMICAL LIGNIN AND ALKALINE HYDROXIDE RECOVERY FROM DEACETYLATION AND MECHANICAL REFINING OF BLACK LIQUOR

#66
20230067397
2023-03-02

Direct Production Of Lithium Hydroxide From Brine By Electrochemical Flow Cells

#67
20230029726
2023-02-02

Li recovery processes and onsite chemical production for Li recovery processes

#68
20230014044
2023-01-19

Electro-pressure membrane method for recovery and concentration of lithium from aqueous sources

#69
20220396505
2022-12-15

SYSTEM AND METHOD FOR PRODUCING ELECTROCHEMICALLY ACTIVATED SOLUTIONS

#70
20220380917
2022-12-01

Li recovery processes and onsite chemical production for Li recovery processes

#71
20220380914
2022-12-01

Li recovery processes and onsite chemical production for Li recovery processes

#72
20220380912
2022-12-01

Li recovery processes and onsite chemical production for Li recovery processes

#73
20220259060
2022-08-18

Processes for preparing lithium carbonate

#74
20220243346
2022-08-04

System and method for controlling a multi-state electrochemical cell

#75
20220106694
2022-04-07

Electrolytic remote ion source and ion recycle (ISIR) module

#76
20220056604
2022-02-24

Method for operating apparatus for producing alkali hydroxide

#77
20220045390
2022-02-10

ALKALINE ELECTROLYTE REGENERATION

#78
20220042182
2022-02-10

Li recovery processes and onsite chemical production for Li recovery processes

#79
20220010408
2022-01-13

PROCESSES FOR PRODUCING LITHIUM COMPOUNDS USING REVERSE OSMOSIS

#80
20220002889
2022-01-06

METHOD AND SYSTEM FOR CO2 EMISSION REDUCTION IN THE PRODUCTION OF CHEMICAL COMPOUNDS

#81
20210391605
2021-12-16

Lithium ion battery materials recycling method

#82
20210363648
2021-11-25

Methods for treating lithium-containing materials

#83
20210348285
2021-11-11

PROCESSES FOR PREPARING LITHIUM HYDROXIDE

#84
20210347650
2021-11-11

Processing of lithium containing brines

#85
20210323833
2021-10-21

Method and System for Preparing Battery Grade and High Purity Grade Lithium Hydroxide and Lithium Carbonate from High-Impurity Lithium Sources

#86
20210292920
2021-09-23

ELECTROCHEMICAL HYDROXIDE SYSTEMS AND METHODS USING METAL OXIDATION

#87
20210230756
2021-07-29

Dual-membrane on-line generator for acid or alkali solution

#88
20210198793
2021-07-01

INTEGRATED LITHIUM PRODUCTION PROCESS

#89
20210087697
2021-03-25

Method for producing lithium hydroxide monohydrate from brines

#90
20210047742
2021-02-18

METHOD OF MAKING ALKALI AND GYPSUM BY PROTON-COUPLED ELECTRON TRANSFER REACTION

#91
20210024362
2021-01-28

Processes for preparing lithium carbonate

#92
20200392632
2020-12-17

BASIC ELECTROCATALYST FOR CARBON DIOXIDE REDUCTION AND ETHYLENE PRODUCTION, ELECTRODE AND APPARATUS EACH INCLUDING THE SAME, AND METHOD OF MANUFACTURING THE ELECTRODE

#93
20200385280
2020-12-10

Method and system for preparing battery grade and high purity grade lithium hydroxide and lithium carbonate from high-impurity lithium sources

#94
20200263310
2020-08-20

System and method for controlling a multi-state electrochemical cell

#95
20200115807
2020-04-16

Methods for treating lithium-containing materials

#96
20200095141
2020-03-26

Chlorinator

#97
20200087804
2020-03-19

Processes for preparing lithium hydroxide

#98
20200056293
2020-02-20

ELECTROLYSIS APPARATUS CAPABLE OF PRODUCING DISINFECTANT OR CLEANING AGENT, AND ELECTROLYSIS METHOD THEREFOR

#99
20190345619
2019-11-14

Electrochemical reactor comprising liquid-repellant porous membrane

#100
20190345582
2019-11-14

Processes for preparing lithium carbonate

#101
20190284708
2019-09-19

ELECTROCHEMICAL HYDROXIDE SYSTEMS AND METHODS USING METAL OXIDATION

#102
20190226104
2019-07-25

APPARATUS FOR PRODUCING ALKALI HYDROXIDE AND METHOD FOR OPERATING APPARATUS FOR PRODUCING ALKALI HYDROXIDE

#103
20190203002
2019-07-04

Ion exchange membrane, method for producing ion exchange membrane, and electrolyzer

#104
20190136392
2019-05-09

Processes for preparing lithium hydroxide

#105
20190119821
2019-04-25

Method for treating spent caustic to recover caustic and sulphur by a bioelectrochemical process

#106
20190032227
2019-01-31

Integrated lithium production process

#107
20190023639
2019-01-24

Process for Producing Oxalic Acid

#108
20180245182
2018-08-30

Methods and systems for recovering products from iron and steel slag

#109
20180244531
2018-08-30

Methods for treating lithium-containing materials

#110
20180222762
2018-08-09

Processes for preparing lithium carbonate

#111
20180142325
2018-05-24

Processing of lithium containing material

#112
20170342573
2017-11-30

Processes for preparing lithium hydroxide

#113
20170294661
2017-10-12

Electrolyte regeneration

#114
20170215472
2017-08-03

Tobacco-derived flavorants

#115
20170203980
2017-07-20

Chlorinator

#116
20170191173
2017-07-06

METHOD FOR PREPARING CARBONATE

#117
20170158508
2017-06-08

Method to prepare one or more chemical products using hydrogen sulfide

#118
20170107634
2017-04-20

ELECTROCHEMICAL PROCESS FOR THE REDUCTION OF MOLECULAR OXYGEN

#119
20170073823
2017-03-16

ELECTROCHEMICAL HYDROXIDE SYSTEMS AND METHODS USING METAL OXIDATION

#120
20170029585
2017-02-02

Cation exchange membrane and method for producing potassium hydroxide aqueous solution

#121
20170022617
2017-01-26

Methods for treating lithium-containing materials

#122
20160368780
2016-12-22

Processes for preparing lithium carbonate

#123
20160312676
2016-10-27

MEMBRANE-BASED EXHAUST GAS SCRUBBING METHOD AND SYSTEM

#124
20160265085
2016-09-15

Processes and systems for preparing lithium carbonate

#125
20160258071
2016-09-08

Processes and systems for preparing lithium hydroxide

#126
20160186334
2016-06-30

Electrochemical reactor comprising liquid-repellent porous membrane

#127
20160149231
2016-05-26

Electrolyte regeneration

#128
20160039724
2016-02-11

Systems, methods and devices for the capture and hydrogenation of carbon dioxide with thermochemical Cu—Cl and Mg—Cl—Na/K—CO2 cycles

#129
20160032471
2016-02-04

PROCESSES FOR PREPARING LITHIUM HYDROXIDE

#130
20160029639
2016-02-04

Dual biocide generator

#131
20150322580
2015-11-12

Treatment of hydrogen sulfide

#132
20150251908
2015-09-10

High strength, low salt hypochlorite production

#133
20150191838
2015-07-09

Method for concentrating an aqueous caustic alkali via splitting a catholyte into a first stream for heat recovery and a second stream for evaporation

#134
20150191837
2015-07-09

Apparatus for making and concentrating an aqueous caustic alkali

#135
20150176142
2015-06-25

Dual Diaphragm Electrolysis cell assembly and method for generating a cleaning solution without any salt residues and simultaneously generating a sanitizing solution having a predetermined level of available free chlorine and PH

#136
20150152563
2015-06-04

Processes for preparing lithium hydroxide

#137
20150139886
2015-05-21

Processes for preparing lithium carbonate

#138
20150094254
2015-04-02

Electrochemical enhancement of detergent alkalinity

#139
20150068913
2015-03-12

METHOD AND APPARATUS FOR CONTROLLING ELECTROLYTIC PROCESSES

#140
20150041323
2015-02-12

Cell for depolarised electrodialysis of salt solutions

#141
20140262812
2014-09-18

System and method for generating and dispensing sodium hydroxide solutions

#142
20140234193
2014-08-21

Electrochemical production of metal hydroxide using metal silicates

#143
20140069821
2014-03-13

System and method for treatment of produced waters

#144
20140014526
2014-01-16

On site generation of alkalinity boost for ware washing applications

#145
20140010743
2014-01-09

Sulfate-based electrolysis processing with flexible feed control, and use to capture carbon dioxide

#146
20140004001
2014-01-02

Large capacity acid or base generator and method of use

#147
20130281721
2013-10-24

Process and apparatus for purification of industrial brine

#148
20130153433
2013-06-20

Electrolytic cell for producing chlorine—sodium hydroxide and method of producing chlorine—sodium hydroxide

#149
20130105332
2013-05-02

Method and apparatus for making and concentrating an aqueous caustic alkali

#150
20130048509
2013-02-28

ELECTROCHEMICAL PROCESS TO RECYCLE AQUEOUS ALKALI CHEMICALS USING CERAMIC ION CONDUCTING SOLID MEMBRANES

#151
20130026046
2013-01-31

On site generation of alkalinity boost for ware washing applications

#152
20120312697
2012-12-13

COutilization in electrochemical systems

#153
20120292197
2012-11-22

Electrochemical systems and methods using metal and ligand

#154
20120292196
2012-11-22

Electrochemical hydroxide systems and methods using metal oxidation

#155
20120228145
2012-09-13

Cleaning solution generator

#156
20120225801
2012-09-06

Electrochemical enhancement of detergent alkalinity

#157
20120183462
2012-07-19

Electrochemical Production of Metal Hydroxide Using Metal Silicates

#158
20120145559
2012-06-14

Gas diffusion electrode equipped ion exchange membrane electrolyzer

#159
20120107210
2012-05-03

Processes for preparing highly pure lithium carbonate and other highly pure lithium containing compounds

#160
20120100056
2012-04-26

Processes for preparing highly pure lithium carbonate and other highly pure lithium containing compounds

#161
20120048743
2012-03-01

Method of electrolysis employing two-chamber ion exchange membrane electrolytic cell having gas diffusion electrode

#162
20110308964
2011-12-22

GAS DIFFUSION ANODE AND CO2 CATHODE ELECTROLYTE SYSTEM

#163
20110277474
2011-11-17

METHODS AND SYSTEMS USING NATURAL GAS POWER PLANT

#164
20110240484
2011-10-06

Production of Alkali Bicarbonate and Alkali Hydroxide From Alkali Carbonate in an Electrolyte Cell.

#165
20110233071
2011-09-29

ELECTROCHEMICAL METHOD FOR REDUCING MOLECULAR OXYGEN

#166
20110200508
2011-08-18

Processes for preparing highly pure lithium carbonate and other highly pure lithium containing compounds

#167
20110147227
2011-06-23

ACID SEPARATION BY ACID RETARDATION ON AN ION EXCHANGE RESIN IN AN ELECTROCHEMICAL SYSTEM

#168
20110079515
2011-04-07

ALKALINE PRODUCTION USING A GAS DIFFUSION ANODE WITH A HYDROSTATIC PRESSURE

#169
20110071309
2011-03-24

Methods and Systems for Utilization of HCI

#170
20110044882
2011-02-24

METHOD OF MAKING HIGH PURITY LITHIUM HYDROXIDE AND HYDROCHLORIC ACID

#171
20100230293
2010-09-16

COutilization in electrochemical systems

#172
20100193732
2010-08-05

Process and apparatus for purification of industrial brine

#173
20100144051
2010-06-10

Large capacity acid or base generator and method of use

#174
20100140103
2010-06-10

Gas diffusion anode and COcathode electrolyte system

#175
20100032311
2010-02-11

Method of concentrating an aqueous caustic alkali using a catholyte heat recovery evaporator

#176
20090127200
2009-05-21

Barrier with a seated ion exchange bead and method

#177
20080245671
2008-10-09

Electrochemical Process to Recycle Aqueous Alkali Chemicals Using Ceramic Ion Conducting Solid Membranes

#178
20070095676
2007-05-03

Oxygen-reducing gas diffusion cathode and method of sodium chloride electrolysis

#179
20060269452
2006-11-30

Large capacity acid or base generator and method of use

#180
20050258048
2005-11-24

Large capacity acid or base generator and method of use

#181
18584503
2024-11-26

Direct air capture of carbon dioxide

#182
16297476
2021-11-16

Processes for producing lithium compounds using reverse osmosis