ClassID:

85539

C01D7/07 - CPC Classification

Classification description:

Carbonates of sodium, potassium or alkali metals in general Preparation from the 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
20250346494
2025-11-13

LIME AND HYDRAULIC CEMENT MANUFACTURE BY ELECTROLYSIS USING HYALOCLASTITE OR LAVA, CARBON MINERALIZATION BY HYALOCLASTITE OR LAVA ELECTROLYSIS AND METHOD OF MAKING AND USING SAME

#3
20250333321
2025-10-30

SYSTEMS AND METHODS FOR PRODUCING LITHIUM CARBONATE AND USES THEREOF

#4
20250333320
2025-10-30

SYSTEMS AND METHODS FOR PRODUCING LITHIUM CARBONATE AND USES THEREOF

#5
20250289716
2025-09-18

CARBON DIOXIDE CAPTURE AND CARBON RESOURCE UTILIZATION SYSTEM, FOR FUEL CELL, USING BOIL-OFF GAS GENERATED FROM LIQUEFIED NATURAL GAS

#6
20250282633
2025-09-11

SEQUENTIAL HYDROMETALURGICAL RECOVERY OF METAL VALUES WITH SEQUESTERED CARBON

#7
20250282630
2025-09-11

Systems and Methods for Generating Bicarbonate Solution From Sodium Hydroxide and Carbon Dioxide

#8
20250236531
2025-07-24

SYSTEMS AND METHODS FOR PRODUCING ALKALI HYDROXIDES AND SULFURIC ACID OR HYDROCHLORIC ACID

#9
20250196063
2025-06-19

APPLYING METAL ALKALINE AND MICROWAVE PYROLYSIS FOR SEPARATING AND CAPTURING CARBON DIOXIDE FROM EXHAUST GAS

#10
20250162891
2025-05-22

A SYSTEM FOR UTILIZING OIL AND GAS FIELD PRODUCED WATER AND CAPTURED CARBON DIOXIDE TO PRODUCE HIGH-VALUE PRODUCTS

#11
20250162863
2025-05-22

DRY HYDROGEN PRODUCTION METHOD FROM SLUDGE

#12
20250115475
2025-04-10

DRY HYDROGEN PRODUCTION DEVICE AND METHOD

#13
20250090993
2025-03-20

CARBON DIOXIDE AND SULFUR OXIDE CAPTURE AND CARBON RESOURCE CONVERSION SYSTEM FOR COAL-FIRED POWER GENERATION

#14
20250011168
2025-01-09

METHOD FOR PRODUCING BLUE HYDROGEN

#15
20250010238
2025-01-09

CO2 RECOVERY DEVICE

#16
20240417270
2024-12-19

SYSTEMS AND METHODS FOR PRODUCING LITHIUM CARBONATE AND USES THEREOF

#17
20240351902
2024-10-24

CALCIUM CARBONATE GENERATION METHOD AND SYSTEM

#18
20240247201
2024-07-25

METHOD OF GENERATING HIGH PURITY HYDROGEN FROM PLASTIC WASTE MIXTURES WITHOUT PRODUCING CARBON DIOXIDE

#19
20240091702
2024-03-21

CHEMICAL SEQUESTERING OF CO2, NOx and SO2

#20
20230416874
2023-12-28

Processes for preparing lithium carbonate

#21
20230365421
2023-11-16

LITHIUM CARBONATE RECOVERY PROCESS

#22
20230322569
2023-10-12

PROCESS AND APPARATUS FOR PRODUCING ALKALI BICARBONATES AND ALKALI CARBONATES

#23
20230322568
2023-10-12

COcapture using alkaline media for the preparation of sodium carbonate

#24
20230303401
2023-09-28

Preparation of lithium carbonate from lithium chloride containing brines

#25
20230242410
2023-08-03

METHOD AND APPARATUS FOR PRODUCING CARBONATE SALTS

#26
20230087180
2023-03-23

PREPARATION OF LITHIUM CARBONATE FROM LITHIUM CHLORIDE CONTAINING BRINES

#27
20230057182
2023-02-23

PRODUCED WATER TREATMENT WITH CO2 ABSORPTION

#28
20230048057
2023-02-16

METHOD FOR RECOVERING ACTIVE METAL OF LITHIUM SECONDARY BATTERY

#29
20220274049
2022-09-01

Chemical sequestering of CO, NOand SO

#30
20220177399
2022-06-09

SYSTEMS AND METHODS FOR GENERATING A CARBOXYLIC ACID FROM A CO2 GAS STREAM

#31
20200399137
2020-12-24

Preparation of lithium carbonate from lithium chloride containing brines

#32
20200369528
2020-11-26

Process for the separation and selective recomposition of ions

#33
20200269185
2020-08-27

Chemical sequestering of CO2, NOx and SO2

#34
20190345582
2019-11-14

Processes for preparing lithium carbonate

#35
20190308137
2019-10-10

Methods to extract carbon dioxide from the atmosphere using a solar PV module as part of a combined cycle energy converter

#36
20190077673
2019-03-14

Apparatus and process for the production of soda ash

#37
20180257032
2018-09-13

SYSTEMS AND METHODS FOR ACID GAS REMOVAL FROM A GASEOUS STREAM

#38
20180072581
2018-03-15

Preparation of lithium carbonate from lithium chloride containing brines

#39
20160265085
2016-09-15

Processes and systems for preparing lithium carbonate

#40
20160137520
2016-05-19

Method of making sodium carbonate and/or sodium bicarbonate

#41
20150259215
2015-09-17

Preparation of lithium carbonate from lithium chloride containing brines

#42
20150202568
2015-07-23

Systems and methods for acid gas removal from a gaseous stream

#43
20150033812
2015-02-05

Methods and systems for the co-generation of gaseous fuels, biochar, and fertilizer from biomass and biogenic wastes

#44
20140360485
2014-12-11

MODIFIED STEAM-METHANE-REFORMATION TECHNIQUE FOR HYDROGEN PRODUCTION

#45
20140336273
2014-11-13

Anhydrous sodium carbonate having a low pore content

#46
20140328743
2014-11-06

REMOVING CARBON DIOXIDE FROM WASTE STREAMS THROUGH CO-GENERATION OF CARBONATE AND/OR BICARBONATE MINERALS

#47
20140308507
2014-10-16

Systems and methods for capture and sequestration of gases and compositions derived therefrom

#48
20140301922
2014-10-09

Preparation of lithium carbonate from lithium chloride containing brines

#49
20140286850
2014-09-25

Method of making sodium carbonate and/or sodium bicarbonate

#50
20140219892
2014-08-07

Separation method for potassium from aqueous KOH solutions

#51
20140072502
2014-03-13

FINE BUBBLE GENERATING APPARATUS, METHOD FOR GENERATING FINE BUBBLES, AND METHOD FOR GAS-LIQUID REACTION USING SAME

#52
20130078168
2013-03-28

System and method for carbon dioxide solidification

#53
20130019785
2013-01-24

Carbon Sequestration in Municipal Solid Waste to Energy Plants

#54
20120323714
2012-12-20

Modified steam-methane-reformation: Hydrogen production with carbon sequestration

#55
20120312697
2012-12-13

COutilization in electrochemical systems

#56
20120141352
2012-06-07

System and method for separating high molecular weight gases from a combustion source

#57
20110129407
2011-06-02

Systems and methods for capture and sequestration of gases and compositions derived therefrom

#58
20110033372
2011-02-10

Methods for recycling carbonate byproducts in a hydrogen producing reaction

#59
20100307912
2010-12-09

Methods and apparatuses for converting carbon dioxide and treating waste material

#60
20100290967
2010-11-18

Process for producing sodium bicarbonate for flue gas desulphurization

#61
20100260653
2010-10-14

Removing carbon dioxide from waste streams through co-generation of carbonate and/or bicarbonate minerals

#62
20100230293
2010-09-16

COutilization in electrochemical systems

#63
20100181531
2010-07-22

Method for preparing dithionite

#64
20100147698
2010-06-17

Method for obtaining sodium carbonate monohydrate crystals

#65
20100116683
2010-05-13

Low energy 4-cell electrochemical system with carbon dioxide gas

#66
20100084283
2010-04-08

CARBON DIOXIDE SEQUESTRATION AND CAPTURE

#67
20100074828
2010-03-25

Method and Apparatus for the Removal of Carbon Dioxide from a Gas Stream

#68
20100034724
2010-02-11

Carbon dioxide capture

#69
20100028241
2010-02-04

Hydrogen Production and Carbon Sequestration in Coal and Natural Gas-Burning Power Plants

#70
20090260993
2009-10-22

Method for obtaining sodium carbonate crystals

#71
20090202413
2009-08-13

Carbon sequestration and production of hydrogen and hydride

#72
20090143211
2009-06-04

Systems and methods for carbon capture and sequestration and compositions derived therefrom

#73
20090041651
2009-02-12

Process for jointly obtaining a chlorine derivative and crystals of sodium carbonate

#74
20080193365
2008-08-14

Method for obtaining sodium carbonate crystals

#75
20070104635
2007-05-10

Sodium hydrogencarbonate crystal particles having low caking property and process for producing them

#76
20060219634
2006-10-05

Method and apparatus for treating fluids

#77
20060185985
2006-08-24

Removing carbon dioxide from waste streams through co-generation of carbonate and/or bicarbonate minerals

#78
20060018824
2006-01-26

Production of hydrogen from non-cyclic organic substances having multiple alcohol functionality

#79
20050163706
2005-07-28

Production of hydrogen via a base-facilitated reaction of carbon monoxide

#80
18813773
2025-07-22

Systems and methods for producing alkali hydroxides and sulfuric acid or hydrochloric acid

#81
18545133
2025-06-17

Applying metal alkaline and microwave pyrolysis for separating and capturing carbon dioxide from exhaust gas