Purification Separation

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CPC
C01D1/28

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Parent Industries

CCHEMISTRY METALLURGY C01Inorganic chemistry C01DCOMPOUNDS OF ALKALI METALS C01D1/00Oxides or hydroxides of sodium, potassium or alkali metals in general

Current Industry

C01D1/28Purification Separation

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Patents Grantslast 30 patents

Information Patent Grant
Processes for preparing hydroxides and oxides of various metals and...
- Patent number 12,006,231
- Issue date Jun 11, 2024
- NEMASKA LITHIUM INC.
- Guy Bourassa
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Process for the separation and selective recomposition of ions
- Patent number 11,780,737
- Issue date Oct 10, 2023
- Ionic Solutions LTD.
- Azaroghly Yazdanbod
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Processes for preparing hydroxides and oxides of various metals and...
- Patent number 11,542,175
- Issue date Jan 3, 2023
- NEMASKA LITHIUM INC.
- Guy Bourassa
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Processes and systems for regenerating alkali process streams
- Patent number 11,312,636
- Issue date Apr 26, 2022
- GRAYMONT WESTERN US INC.
- Shiaw Tseng
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Processes for preparing hydroxides and oxides of various metals and...
- Patent number 11,142,466
- Issue date Oct 12, 2021
- Nemaska Lithium Inc.
- Guy Bourassa
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Lithium compound, method for producing the lithium compound, and me...
- Patent number 11,056,688
- Issue date Jul 6, 2021
- Sumitomo Metal Mining Co., Ltd.
- Azusa Tagami
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Apparatus and process for the production of soda ash
- Patent number 10,759,670
- Issue date Sep 1, 2020
- IONIC SOLUTIONS LTD.
- Azaroghly Yazdanbod
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Process and systems for regenerating alkali process streams
- Patent number 10,364,159
- Issue date Jul 30, 2019
- GRAYMONT WESTERN US INC.
- Shiaw Tseng
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
System and methods for removing minerals from a brine using electro...
- Patent number 10,246,357
- Issue date Apr 2, 2019
- Enviro Water Minerals Company, Inc.
- Paul Steven Wallace
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Alkali recycle in cellulose spinning process
- Patent number 10,138,578
- Issue date Nov 27, 2018
- TREETOTEXTILE AB
- Lars Stigsson
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Etching method for semiconductor silicon wafer
- Patent number 6,844,269
- Issue date Jan 18, 2005
- Shin-Etsu Handotai Co., Ltd.
- Seiichi Miyazaki
- C11 - ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES FATTY ACIDS...
Information Patent Grant
Method of purifying alkaline solution and method of etching semicon...
- Patent number 6,319,845
- Issue date Nov 20, 2001
- Shin-Etsu Handotai Co., Ltd.
- Isao Uchiyama
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Method for reducing the plating of nickel on vessels, piping and ce...
- Patent number 6,200,455
- Issue date Mar 13, 2001
- Pioneer (East) Inc.
- John William Hegeman
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Beneficiation of saline minerals
- Patent number 6,173,840
- Issue date Jan 16, 2001
- Environmental Projects, Inc.
- Rudolph Pruszko
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Method for removal of nickel and iron from alkali metal hydroxide s...
- Patent number 6,123,826
- Issue date Sep 26, 2000
- Pioneer (East) Inc.
- John William Hegeman
- C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
Information Patent Grant
Method of purifying alkaline solution and method of etching semicon...
- Patent number 6,110,839
- Issue date Aug 29, 2000
- Shin-Etsu Handotai Co., Ltd.
- Masami Nakano
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Process for recovering the sodium contained in industrial alkaline...
- Patent number 6,110,377
- Issue date Aug 29, 2000
- Aluminum Pechiney
- Jean-Michel Lamerant
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Method for removal of nickel and iron from alkali metal hydroxide m...
- Patent number 6,080,299
- Issue date Jun 27, 2000
- Pioneer (East) Inc.
- John William Hegeman
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Removal of chlorate from caustic soda
- Patent number 4,837,002
- Issue date Jun 6, 1989
- BASF Aktiengesellschaft
- Dieter Schlaefer
- C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
Information Patent Grant
Method for removing chlorate from alkali metal hydroxide
- Patent number 4,676,971
- Issue date Jun 30, 1987
- PPG Industries, Inc.
- William H. Cooper
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Process for the extraction of arsenic from aqueous solutions contai...
- Patent number 4,485,075
- Issue date Nov 27, 1984
- Uranium Pechiney Ugine Kuhlmann
- Pierre Maurel
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Process for separating salts in aqueous streams
- Patent number 4,478,722
- Issue date Oct 23, 1984
- The Dow Chemical Company
- W. Steven Boom
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Process for the purification of solutions containing a sodium or po...
- Patent number 4,451,439
- Issue date May 29, 1984
- Pechiney
- Pierre Maurel
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Purification of alkali metal hydroxides
- Patent number 4,372,924
- Issue date Feb 8, 1983
- The Dow Chemical Company
- David L. Porter
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Reducing carbonate concentration in aqueous solution
- Patent number 4,334,949
- Issue date Jun 15, 1982
- International Business Machines Corporation
- Joseph G. Ameen
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
One-stage flotation purification of NaOH
- Patent number 4,277,331
- Issue date Jul 7, 1981
- E. I. Du Pont de Nemours & Co.
- Raymond H. Conageski
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Method for removing chlorate from caustic solutions with electrolyt...
- Patent number 4,276,134
- Issue date Jun 30, 1981
- The Dow Chemical Company
- Augusto Porta
- C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
Information Patent Grant
Two-stage flotation purification of NaOH
- Patent number 4,273,657
- Issue date Jun 16, 1981
- E. I. Du Pont de Nemours & Co.
- Raymond H. Conageski
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Controlled temperature purification of aqueous sodium hydroxide sol...
- Patent number 4,251,490
- Issue date Feb 17, 1981
- The H. K. Ferguson Company
- Rodney A. Cerny
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Process for desalting an aqueous caustic solution
- Patent number 4,235,717
- Issue date Nov 25, 1980
- The Dow Chemical Company
- John M. Lee
- C01 - INORGANIC CHEMISTRY

Patents Applicationslast 30 patents

Information Patent Application
PROCESSES FOR PREPARING HYDROXIDES AND OXIDES OF VARIOUS METALS AND...
- Publication number 20240294395
- Publication date Sep 5, 2024
- NEMASKA LITHIUM INC.
- Guy BOURASSA
- C01 - INORGANIC CHEMISTRY
Information Patent Application
PROCESSES FOR PREPARING HYDROXIDES AND OXIDES OF VARIOUS METALS AND...
- Publication number 20230159348
- Publication date May 25, 2023
- NEMASKA LITHIUM INC.
- Guy BOURASSA
- C01 - INORGANIC CHEMISTRY
Information Patent Application
PROCESSES FOR PREPARING HYDROXIDES AND OXIDES OF VARIOUS METALS AND...
- Publication number 20220002168
- Publication date Jan 6, 2022
- NEMASKA LITHIUM INC.
- Guy BOURASSA
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
APPARATUS AND PROCESS FOR THE PRODUCTION OF SODA ASH
- Publication number 20200369528
- Publication date Nov 26, 2020
- Azaroghly YAZDANBOD
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
PROCESSES AND SYSTEMS FOR REGENERATING ALKALI PROCESS STREAMS
- Publication number 20190276330
- Publication date Sep 12, 2019
- GRAYMONT WESTERN US INC.
- Shiaw TSENG
- C01 - INORGANIC CHEMISTRY
Information Patent Application
APPARATUS AND PROCESS FOR THE PRODUCTION OF SODA ASH
- Publication number 20190077673
- Publication date Mar 14, 2019
- Azaroghly Yazdanbod
- C01 - INORGANIC CHEMISTRY
Information Patent Application
PROCESS AND SYSTEMS FOR REGENERATING ALKALI PROCESS STREAMS
- Publication number 20180134573
- Publication date May 17, 2018
- GRAYMONT WESTERN US INC.
- Shiaw TSENG
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
ALKALI RECYCLE IN CELLULOSE SPINNING PROCESS
- Publication number 20160138200
- Publication date May 19, 2016
- Lars Stigsson
- D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
Information Patent Application
Etchant, etching method and semiconductor silicon waffer
- Publication number 20030008504
- Publication date Jan 9, 2003
- Seiichi Miyazaki
- C01 - INORGANIC CHEMISTRY

Purification Separation

Industry

Parent Industries

Current Industry

Patents Grantslast 30 patents

Processes for preparing hydroxides and oxides of various metals and...

Process for the separation and selective recomposition of ions

Processes for preparing hydroxides and oxides of various metals and...

Processes and systems for regenerating alkali process streams

Processes for preparing hydroxides and oxides of various metals and...

Lithium compound, method for producing the lithium compound, and me...

Apparatus and process for the production of soda ash

Process and systems for regenerating alkali process streams

System and methods for removing minerals from a brine using electro...

Alkali recycle in cellulose spinning process

Etching method for semiconductor silicon wafer

Method of purifying alkaline solution and method of etching semicon...

Method for reducing the plating of nickel on vessels, piping and ce...

Beneficiation of saline minerals

Method for removal of nickel and iron from alkali metal hydroxide s...

Method of purifying alkaline solution and method of etching semicon...

Process for recovering the sodium contained in industrial alkaline...

Method for removal of nickel and iron from alkali metal hydroxide m...

Removal of chlorate from caustic soda

Method for removing chlorate from alkali metal hydroxide

Process for the extraction of arsenic from aqueous solutions contai...

Process for separating salts in aqueous streams

Process for the purification of solutions containing a sodium or po...

Purification of alkali metal hydroxides

Reducing carbonate concentration in aqueous solution

One-stage flotation purification of NaOH

Method for removing chlorate from caustic solutions with electrolyt...

Two-stage flotation purification of NaOH

Controlled temperature purification of aqueous sodium hydroxide sol...

Process for desalting an aqueous caustic solution

Patents Applicationslast 30 patents

PROCESSES FOR PREPARING HYDROXIDES AND OXIDES OF VARIOUS METALS AND...

PROCESSES FOR PREPARING HYDROXIDES AND OXIDES OF VARIOUS METALS AND...

PROCESSES FOR PREPARING HYDROXIDES AND OXIDES OF VARIOUS METALS AND...

APPARATUS AND PROCESS FOR THE PRODUCTION OF SODA ASH

PROCESSES AND SYSTEMS FOR REGENERATING ALKALI PROCESS STREAMS

APPARATUS AND PROCESS FOR THE PRODUCTION OF SODA ASH

PROCESS AND SYSTEMS FOR REGENERATING ALKALI PROCESS STREAMS

ALKALI RECYCLE IN CELLULOSE SPINNING PROCESS

Etchant, etching method and semiconductor silicon waffer