Purification of calcium sulfates

Industry

CPC
C01F11/468

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Parent Industries

CCHEMISTRY METALLURGY C01Inorganic chemistry C01FCOMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS C01F11/00Compounds of calcium, strontium, or barium

Current Industry

C01F11/468Purification of calcium sulfates

Industries

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Patents Grantslast 30 patents

Information Patent Grant
Process for the recovery of rare earths
- Patent number 11,858,824
- Issue date Jan 2, 2024
- Arafura Resources Limited
- Alexander Dean Elliot
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Integrated method for producing sulphur dioxide quality suitable fo...
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- Issue date Dec 19, 2023
- ThyssenKrupp Industrial Solutions AG
- Peter Stockhoff
- C01 - INORGANIC CHEMISTRY
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Method and system for extraction of minerals based on divalent cati...
- Patent number 11,806,668
- Issue date Nov 7, 2023
- SALINE WATER CONVERSION CORPORATION
- Ahmed Saleh Mohammed Alamoudi
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Countercurrent process for recovering high purity copper sulfate va...
- Patent number 11,673,812
- Issue date Jun 13, 2023
- Scandium International Mining Corporation
- Willem P. C. Duyvesteyn
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Methods for coal combustion product (CCP) recovery and related prod...
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- Issue date Mar 14, 2023
- ECO MATERIAL TECHNOLOGIES IP INC.
- Clinton Wesley Pike
- C21 - METALLURGY OF IRON
Information Patent Grant
Method of treating wastewater
- Patent number 11,505,480
- Issue date Nov 22, 2022
- Mitsubishi Materials Corporation
- Daisuke Haraguchi
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
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
Method for production of ammonium phosphate from phosphate rock slurry
- Patent number 11,261,088
- Issue date Mar 1, 2022
- KUNMING UNIVERSITY OF SCIENCE AND TECHNOLOGY
- Ping Ning
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Releasing impurities from a calcium-based mineral
- Patent number 10,988,387
- Issue date Apr 27, 2021
- Carbon Cycle Limited
- Waqas Mirza
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information Patent Grant
Extraction of products from titanium-bearing minerals
- Patent number 10,407,316
- Issue date Sep 10, 2019
- AVERTANA LIMITED
- David Jonathan Hassell
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Process for treating a sulfurous fluid to form gypsum and magnesium...
- Patent number 10,399,862
- Issue date Sep 3, 2019
- Imerys USA, Inc.
- Christopher Paynter
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
System and methods for removing impurities from phosphogypsum and m...
- Patent number 10,384,953
- Issue date Aug 20, 2019
- Technion Research and Development Foundation Ltd.
- Konstantin Kovler
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Method for complex treatment of phosphogypsum
- Patent number 10,370,258
- Issue date Aug 6, 2019
- FERIN SP. Z O.O
- Wlodzimierz Merka
- C05 - FERTILISERS MANUFACTURE THEREOF
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
Extraction of products from titanium-bearing minerals
- Patent number 10,294,117
- Issue date May 21, 2019
- AVERTANA LIMITED
- David Jonathan Hassell
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Extraction of products from titanium-bearing minerals
- Patent number 10,287,176
- Issue date May 14, 2019
- AVERTANA LIMITED
- David Jonathan Hassell
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Hematite manufacturing process and hematite manufactured by same
- Patent number 9,938,158
- Issue date Apr 10, 2018
- Sumitomo Metal Mining Co., Ltd.
- Yoshitomo Ozaki
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
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Reclaiming useful products from exhaust gas clean-up system
- Patent number 9,901,876
- Issue date Feb 27, 2018
- MILLENIUM SYNTHFUELS CORPORATION
- Lai O. Kuku
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
System and methods for removing impurities from phosphogypsum and m...
- Patent number 9,868,647
- Issue date Jan 16, 2018
- Technion Research and Development Foundation Ltd.
- Konstantin Kovler
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Method for reducing elemental sulfur in gypsum products
- Patent number 9,656,876
- Issue date May 23, 2017
- CertainTeed Gypsum, Inc.
- John W. College
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Method for reducing the content of fine material in FGD gypsum
- Patent number 9,139,449
- Issue date Sep 22, 2015
- Andritz AG
- Michael Kramer
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Gypsum decontamination process
- Patent number 7,118,718
- Issue date Oct 10, 2006
- PCS Nitrogen, Inc.
- William J. Ellis
- G21 - NUCLEAR PHYSICS NUCLEAR ENGINEERING
Information Patent Grant
Method, apparatus and use of chelating agents for the purification...
- Patent number 6,827,914
- Issue date Dec 7, 2004
- Christopher Oldfield
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Method of producing surgical grade calcium sulphate
- Patent number 6,780,391
- Issue date Aug 24, 2004
- Biocomposites Limited
- John Joseph Cooper
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Treatment of phospho gypsum
- Patent number 6,620,395
- Issue date Sep 16, 2003
- Dirk Guustaaf Mantel
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Converting fluorgyp to calcium sulfate
- Patent number 6,517,790
- Issue date Feb 11, 2003
- Alcoa Inc.
- Dennis J. Eisele
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Process of purifying gypsum
- Patent number 5,500,197
- Issue date Mar 19, 1996
- Metallgesellschaft Aktiengesellschaft
- Dieter Grone
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Method for the preparation of low-chloride plaster products from ca...
- Patent number 5,324,501
- Issue date Jun 28, 1994
- A.I.R. Lippewerk Recycling GmbH
- Diethel M. Koehnk
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Purification of FGD gypsum product
- Patent number 5,215,672
- Issue date Jun 1, 1993
- The Babcock & Wilcox Company
- Kevin J. Rogers
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Fluorogypsum waste solidification material
- Patent number 5,174,972
- Issue date Dec 29, 1992
- David G. Azar
- C01 - INORGANIC CHEMISTRY

Patents Applicationslast 30 patents

Information Patent Application
A PROCESS FOR THE CONTINUOUS PREPARATION OF ALPHA-CALCIUM SULPHATE...
- Publication number 20240124319
- Publication date Apr 18, 2024
- SAINT-GOBAIN PLACO
- Jöel Colombo
- C01 - INORGANIC CHEMISTRY
Information Patent Application
METHOD AND SYSTEM FOR EXTRACTION OF MINERALS BASED ON DIVALENT CATI...
- Publication number 20230405526
- Publication date Dec 21, 2023
- Saline Water Conversion Corporation
- Ahmed Saleh Mohammed ALAMOUDI
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
METHOD FOR PRODUCING PHOSPHORIC ACID AND CALCIUM SULPHATE QUALITY S...
- Publication number 20230373789
- Publication date Nov 23, 2023
- ThyssenKrupp Industrial Solutions AG
- Peter STOCKHOFF
- C01 - INORGANIC CHEMISTRY
Information Patent Application
METHOD FOR COMPRESSION OF AQUEOUS SLURRY CONTAINING SOLID FOREIGN M...
- Publication number 20230257277
- Publication date Aug 17, 2023
- Tokuyama Corporation
- Shingo HIRANAKA
- B09 - DISPOSAL OF SOLID WASTE RECLAMATION OF CONTAMINED SOIL SOIL
Information Patent Application
Method and System for Extraction of Minerals Based on Divalent Cati...
- Publication number 20230182077
- Publication date Jun 15, 2023
- Saline Water Conversion Corporation
- Ahmed Saleh Mohammed ALAMOUDI
- C01 - INORGANIC CHEMISTRY
Information Patent Application
INTEGRATED METHOD FOR PRODUCING SULPHUR DIOXIDE QUALITY SUITABLE FO...
- Publication number 20230126633
- Publication date Apr 27, 2023
- ThyssenKrupp Industrial Solutions AG
- Peter STOCKHOFF
- C01 - INORGANIC CHEMISTRY
Information Patent Application
METHOD OF PREPARING FERRIC PHOSPHATE FROM IRON-CONTAINING WASTE
- Publication number 20230077925
- Publication date Mar 16, 2023
- GUIZHOU CHANHEN CHEMICAL CORPORATION
- Jin Li
- C01 - INORGANIC CHEMISTRY
Information Patent Application
INTEGRATED METHOD FOR THE COMMERCIAL AND INDUSTRIAL UTILISATION OF...
- Publication number 20230039227
- Publication date Feb 9, 2023
- ThyssenKrupp Industrial Solutions AG
- Stefan HELMLE
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
COUNTERCURRENT PROCESS FOR RECOVERING HIGH PURITY COPPER SULFATE VA...
- Publication number 20210347651
- Publication date Nov 11, 2021
- Scandium International Mining Corp.
- Willem P.C. Duyvesteyn
- C01 - INORGANIC CHEMISTRY
Information Patent Application
PROCESS FOR THE RECOVERY OF RARE EARTHS
- Publication number 20210140012
- Publication date May 13, 2021
- Arafura Resources Limited
- Alexander Dean Elliot
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
METHOD FOR PRODUCTION OF AMMONIUM PHOSPHATE FROM PHOSPHATE ROCK SLURRY
- Publication number 20210114878
- Publication date Apr 22, 2021
- KUNMING UNIVERSITY OF SCIENCE AND TECHNOLOGY
- Ping NING
- C01 - INORGANIC CHEMISTRY
Information Patent Application
METHOD OF TREATING WASTEWATER
- Publication number 20210070637
- Publication date Mar 11, 2021
- MITSUBISHI MATERIALS CORPORATION
- Daisuke Haraguchi
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Application
Methods for Coal Combustion Product (CCP) Recovery and Related Prod...
- Publication number 20210061709
- Publication date Mar 4, 2021
- VHSC, LTD.
- Clinton Wesley Pike
- C01 - INORGANIC CHEMISTRY
Information Patent Application
RELEASING IMPURITIES FROM A CALCIUM-BASED MINERAL
- Publication number 20200071179
- Publication date Mar 5, 2020
- Carbon Cycle Limited
- Waqas Mirza
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information Patent Application
METHOD FOR THE PRODUCTION OF LITHIUM CARBONATE FROM SALT BRINES
- Publication number 20190276328
- Publication date Sep 12, 2019
- MGX MINERALS INC.
- Jared LAZERSON
- C01 - INORGANIC CHEMISTRY
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
SYSTEM AND METHODS FOR REMOVING IMPURITIES FROM PHOSPHOGYPSUM AND M...
- Publication number 20180170766
- Publication date Jun 21, 2018
- Technion Research & Development Foundation Ltd.
- Konstantin KOVLER
- C01 - INORGANIC CHEMISTRY
Information Patent Application
METHOD FOR COMPLEX TREATMENT OF PHOSPHOGYPSUM
- Publication number 20180162740
- Publication date Jun 14, 2018
- Wlodzimierz MERKA
- 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
A PROCESS FOR TREATING A SULFUROUS FLUID TO FORM GYPSUM AND MAGNESI...
- Publication number 20180002187
- Publication date Jan 4, 2018
- IMERYS USA, INC.
- Christopher PAYNTER
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
EXTRACTION OF PRODUCTS FROM TITANIUM-BEARING MINERALS
- Publication number 20170190592
- Publication date Jul 6, 2017
- Avertana Limited
- David Jonathan Hassell
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
EXTRACTION OF PRODUCTS FROM TITANIUM-BEARING MINERALS
- Publication number 20170174525
- Publication date Jun 22, 2017
- Avertana Limited
- David Jonathan Hassell
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
EXTRACTION OF PRODUCTS FROM TITANIUM-BEARING MINERALS
- Publication number 20170158523
- Publication date Jun 8, 2017
- Avertana Limited
- David Jonathan Hassell
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
Method For Reducing Elemental Sulfur In Gypsum Products
- Publication number 20170121183
- Publication date May 4, 2017
- CertainTeed Gypsum, Inc.
- John W. College
- C01 - INORGANIC CHEMISTRY
Information Patent Application
SYSTEM AND METHODS FOR REMOVING IMPURITIES FROM PHOSPHOGYPSUM AND M...
- Publication number 20170022070
- Publication date Jan 26, 2017
- Technion Research & Development Foundation Ltd.
- Konstantin KOVLER
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
METHOD FOR REDUCING THE CONTENT OF FINE MATERIAL IN FGD GYPSUM
- Publication number 20150041374
- Publication date Feb 12, 2015
- ANDRITZ ENERGY & ENVIRONMENT GMBH
- Michael Kramer
- B04 - CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL...
Information Patent Application
PROCESS FOR CONVERTING FGD GYPSUM TO AMMONIUM SULFATE AND CALCIUM C...
- Publication number 20140044619
- Publication date Feb 13, 2014
- Murray P. Hasinoff
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
METHOD OF PURIFYING GYPSUM
- Publication number 20110044883
- Publication date Feb 24, 2011
- KEMIRA OYJ
- Perttu Heiska
- C01 - INORGANIC CHEMISTRY
Information Patent Application
GYPSUM STABILISATION METHOD
- Publication number 20100111821
- Publication date May 6, 2010
- Esther Álvarez Ayuso
- E21 - EARTH DRILLING MINING
Information Patent Application
Gypsum decontamination process
- Publication number 20030163014
- Publication date Aug 28, 2003
- William J. Ellis
- C01 - INORGANIC CHEMISTRY

Purification of calcium sulfates

Industry

Parent Industries

Current Industry

Patents Grantslast 30 patents

Process for the recovery of rare earths

Integrated method for producing sulphur dioxide quality suitable fo...

Method and system for extraction of minerals based on divalent cati...

Countercurrent process for recovering high purity copper sulfate va...

Methods for coal combustion product (CCP) recovery and related prod...

Method of treating wastewater

Processes and systems for regenerating alkali process streams

Method for production of ammonium phosphate from phosphate rock slurry

Releasing impurities from a calcium-based mineral

Extraction of products from titanium-bearing minerals

Process for treating a sulfurous fluid to form gypsum and magnesium...

System and methods for removing impurities from phosphogypsum and m...

Method for complex treatment of phosphogypsum

Process and systems for regenerating alkali process streams

Extraction of products from titanium-bearing minerals

Extraction of products from titanium-bearing minerals

Hematite manufacturing process and hematite manufactured by same

Reclaiming useful products from exhaust gas clean-up system

System and methods for removing impurities from phosphogypsum and m...

Method for reducing elemental sulfur in gypsum products

Method for reducing the content of fine material in FGD gypsum

Gypsum decontamination process

Method, apparatus and use of chelating agents for the purification...

Method of producing surgical grade calcium sulphate

Treatment of phospho gypsum

Converting fluorgyp to calcium sulfate

Process of purifying gypsum

Method for the preparation of low-chloride plaster products from ca...

Purification of FGD gypsum product

Fluorogypsum waste solidification material

Patents Applicationslast 30 patents

A PROCESS FOR THE CONTINUOUS PREPARATION OF ALPHA-CALCIUM SULPHATE...

METHOD AND SYSTEM FOR EXTRACTION OF MINERALS BASED ON DIVALENT CATI...

METHOD FOR PRODUCING PHOSPHORIC ACID AND CALCIUM SULPHATE QUALITY S...

METHOD FOR COMPRESSION OF AQUEOUS SLURRY CONTAINING SOLID FOREIGN M...

Method and System for Extraction of Minerals Based on Divalent Cati...

INTEGRATED METHOD FOR PRODUCING SULPHUR DIOXIDE QUALITY SUITABLE FO...

METHOD OF PREPARING FERRIC PHOSPHATE FROM IRON-CONTAINING WASTE

INTEGRATED METHOD FOR THE COMMERCIAL AND INDUSTRIAL UTILISATION OF...

COUNTERCURRENT PROCESS FOR RECOVERING HIGH PURITY COPPER SULFATE VA...

PROCESS FOR THE RECOVERY OF RARE EARTHS

METHOD FOR PRODUCTION OF AMMONIUM PHOSPHATE FROM PHOSPHATE ROCK SLURRY

METHOD OF TREATING WASTEWATER

Methods for Coal Combustion Product (CCP) Recovery and Related Prod...

RELEASING IMPURITIES FROM A CALCIUM-BASED MINERAL

METHOD FOR THE PRODUCTION OF LITHIUM CARBONATE FROM SALT BRINES

PROCESSES AND SYSTEMS FOR REGENERATING ALKALI PROCESS STREAMS

SYSTEM AND METHODS FOR REMOVING IMPURITIES FROM PHOSPHOGYPSUM AND M...

METHOD FOR COMPLEX TREATMENT OF PHOSPHOGYPSUM

PROCESS AND SYSTEMS FOR REGENERATING ALKALI PROCESS STREAMS

A PROCESS FOR TREATING A SULFUROUS FLUID TO FORM GYPSUM AND MAGNESI...

EXTRACTION OF PRODUCTS FROM TITANIUM-BEARING MINERALS

EXTRACTION OF PRODUCTS FROM TITANIUM-BEARING MINERALS

EXTRACTION OF PRODUCTS FROM TITANIUM-BEARING MINERALS

Method For Reducing Elemental Sulfur In Gypsum Products

SYSTEM AND METHODS FOR REMOVING IMPURITIES FROM PHOSPHOGYPSUM AND M...

METHOD FOR REDUCING THE CONTENT OF FINE MATERIAL IN FGD GYPSUM

PROCESS FOR CONVERTING FGD GYPSUM TO AMMONIUM SULFATE AND CALCIUM C...

METHOD OF PURIFYING GYPSUM

GYPSUM STABILISATION METHOD

Gypsum decontamination process