Purification Separation; Stabilisation

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CPC
C01B21/46

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CCHEMISTRY METALLURGY C01Inorganic chemistry C01BNON-METALLIC ELEMENTS COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C C01B21/00Nitrogen Compounds thereof

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C01B21/46Purification Separation; Stabilisation

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Patents Grantslast 30 patents

Information Patent Grant
Plant for the production of nitric acid, a related process and meth...
- Patent number 12,129,170
- Issue date Oct 29, 2024
- Casale SA
- Iacopo Cerea
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Plant for the production of nitric acid, a related process and meth...
- Patent number 12,006,211
- Issue date Jun 11, 2024
- Casale SA
- Iacopo Cerea
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Separation and concentration of nitrate from aqueous solutions and...
- Patent number 11,634,326
- Issue date Apr 25, 2023
- Clairion Ltd.
- Zach Barnea
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Plant for the production of nitric acid, a related process and meth...
- Patent number 11,292,719
- Issue date Apr 5, 2022
- Casale SA
- Iacopo Cerea
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Reverse osmosis for purifying mixtures of hydrofluoric acid and nit...
- Patent number 9,840,667
- Issue date Dec 12, 2017
- Solvay S.A.
- Jean-Marie Collard
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Method and plant for reprocessing waste sulphuric acids from nitrat...
- Patent number 9,108,847
- Issue date Aug 18, 2015
- DE Dietrich Process Systems GMBH
- Gottfried Dichtl
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Process for the mononitration of alkanediols
- Patent number 7,851,649
- Issue date Dec 14, 2010
- Dipharma S.p.A.
- Nevio Francescutti
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the mononitration of alkanediols
- Patent number 7,335,789
- Issue date Feb 26, 2008
- Dipharma S.p.A.
- Nevio Francescutti
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Apparatus and method for distilling waste liquids
- Patent number 7,232,504
- Issue date Jun 19, 2007
- Fujitsu Limited
- Hiroshi Osuda
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Apparatus and method for distilling waste liquids
- Patent number 6,508,915
- Issue date Jan 21, 2003
- Fujitsu Limited
- Hiroshi Osuda
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Liquid hydrate regeneration of contaminated acids
- Patent number 6,451,269
- Issue date Sep 17, 2002
- Waterworks International, Inc.
- Lawrence D. Conant
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
On-site manufacture of ultra-high-purity nitric acid
- Patent number 6,214,173
- Issue date Apr 10, 2001
- Air Liquide Electronics Chemicals & Services, Inc.
- Mindi Xu
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Liquid hydrate regeneration of contaminated acids
- Patent number 6,106,795
- Issue date Aug 22, 2000
- Waterworks International
- Lawrence D. Conant
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Stabilized nitric acid compositions
- Patent number 5,741,432
- Issue date Apr 21, 1998
- The Dexter Corporation
- Kwee C. Wong
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Point-of-use recycling of wafer cleaning substances
- Patent number 5,632,866
- Issue date May 27, 1997
- FSI International, Inc.
- Donald C. Grant
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Process for the treatment of an aqueous solution mainly containing...
- Patent number 5,603,811
- Issue date Feb 18, 1997
- Cogema -Compagnie Generale Des Matieres Nucleaires
- Philippe Lucas
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Method for removing tetranitromethane from nitric acid
- Patent number 5,589,037
- Issue date Dec 31, 1996
- General Electric Company
- Thomas L. Guggenheim
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the extraction of strontium from acidic solutions
- Patent number 5,344,623
- Issue date Sep 6, 1994
- The United States of America as represented by the United States Department o...
- E. Philip Horwitz
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Method for separating and recovering an acid
- Patent number 5,300,228
- Issue date Apr 5, 1994
- Asahi Glass Company Ltd.
- Yoshio Sugaya
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Filter device for acids and process for filtering inorganic acids
- Patent number 5,275,738
- Issue date Jan 4, 1994
- Pall Corporation
- Richard F. Salinaro
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Method of extracting dinitrogen pentoxide from its mixture with nit...
- Patent number 5,266,292
- Issue date Nov 30, 1993
- Secretary of State for Defence in the United Kingdom
- Greville E. G. Bagg
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Acid recycling system
- Patent number 5,264,123
- Issue date Nov 23, 1993
- Daniel E. Bailey
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Method for purification of acids from materials comprising acid and...
- Patent number 5,162,076
- Issue date Nov 10, 1992
- Allied-Signal Inc.
- Yu-Chih Chiao
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Process for the production or recovery of acids from metalliferous...
- Patent number 5,149,515
- Issue date Sep 22, 1992
- Maschinenfabrik Andritz Actiengesellschaft
- Wilhelm Karner
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Membrane process for acid recovery
- Patent number 5,064,538
- Issue date Nov 12, 1991
- Cominco Ltd.
- Daniel A. D. Boeteng
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Method for producing high purity chemicals
- Patent number 4,892,625
- Issue date Jan 9, 1990
- Tama Chemicals Co., Ltd.
- Shumpei Shimizu
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Method for improving ruthenium decontamination efficiency in nitric...
- Patent number 4,526,658
- Issue date Jul 2, 1985
- Doryokuro Kakunenryo Kaihatsu Jigyodan
- Kanya Kubota
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Process for working up nitric acid
- Patent number 4,344,827
- Issue date Aug 17, 1982
- Bayer Aktiengesellschaft
- Wolfgang Auge
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Method for removing fluoride contamination from nitric acid
- Patent number 4,339,309
- Issue date Jul 13, 1982
- The United States of America as represented by the United States Department o...
- David J. Pruett
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Separation of acids
- Patent number 4,285,924
- Issue date Aug 25, 1981
- National Research Development Corp.
- Michael W. T. Pratt
- C01 - INORGANIC CHEMISTRY

Patents Applicationslast 30 patents

Information Patent Application
MONO PRESSURE SYSTEM FOR PRODUCING NITRIC ACID AND METHOD OF OPERAT...
- Publication number 20250011171
- Publication date Jan 9, 2025
- YARA INTERNATIONAL ASA
- Bent VIGELAND
- C01 - INORGANIC CHEMISTRY
Information Patent Application
DUAL PRESSURE SYSTEM FOR PRODUCING NITRIC ACID AND METHOD OF OPERAT...
- Publication number 20240343577
- Publication date Oct 17, 2024
- YARA INTERNATIONAL ASA
- Bent VIGELAND
- C01 - INORGANIC CHEMISTRY
Information Patent Application
DEVICE AND METHOD FOR ON-LINE CONTINUOUS RECOVERY OF EXCESS NITRIC...
- Publication number 20240246820
- Publication date Jul 25, 2024
- Fudan University
- Fener CHEN
- C01 - INORGANIC CHEMISTRY
Information Patent Application
SYSTEM FOR EVACUATING NOx GASES FROM A NITRIC ACID STORAGE TANK
- Publication number 20240228284
- Publication date Jul 11, 2024
- YARA INTERNATIONAL ASA
- Ronald RÖSLER
- C01 - INORGANIC CHEMISTRY
Information Patent Application
PROCESS FOR RECYCLING NITROGEN OXIDES FROM NITROSYL SULFURIC ACID T...
- Publication number 20240182302
- Publication date Jun 6, 2024
- PLINKE GMBH
- Kevin Schabel
- C01 - INORGANIC CHEMISTRY
Information Patent Application
MONO-PRESSURE PLANT FOR THE PRODUCTION OF NITRIC ACID AND METHOD FO...
- Publication number 20230382734
- Publication date Nov 30, 2023
- Bent VIGELAND
- C01 - INORGANIC CHEMISTRY
Information Patent Application
METHOD FOR PREPARING ELECTRONIC GRADE INORGANIC ACIDS FROM WASTE AC...
- Publication number 20230118652
- Publication date Apr 20, 2023
- GREEN FINE TECHNOLOGY CORP.
- Ching-Jung KAN
- C01 - INORGANIC CHEMISTRY
Information Patent Application
A PLANT FOR THE PRODUCTION OF NITRIC ACID, A RELATED PROCESS AND ME...
- Publication number 20220227628
- Publication date Jul 21, 2022
- Casale SA
- Iacopo Cerea
- C01 - INORGANIC CHEMISTRY
Information Patent Application
PLANT FOR THE PRODUCTION OF NITRIC ACID, A RELATED PROCESS AND METH...
- Publication number 20220219985
- Publication date Jul 14, 2022
- Casale SA
- Iacopo Cerea
- C01 - INORGANIC CHEMISTRY
Information Patent Application
SEPARATION AND CONCENTRATION OF NITRATE FROM AQUEOUS SOLUTIONS AND...
- Publication number 20220017365
- Publication date Jan 20, 2022
- Clairion Ltd.
- Zach Barnea
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
PROCESS FOR PRODUCING NITRIC ACID
- Publication number 20200180959
- Publication date Jun 11, 2020
- YARA INTERNATIONAL ASA
- Brian Scott Haynes
- C01 - INORGANIC CHEMISTRY
Information Patent Application
A PLANT FOR THE PRODUCTION OF NITRIC ACID, A RELATED PROCESS AND ME...
- Publication number 20200071167
- Publication date Mar 5, 2020
- Casale SA
- Iacopo Cerea
- C01 - INORGANIC CHEMISTRY
Information Patent Application
A method for purification of circulating leaching solutions from ph...
- Publication number 20160016798
- Publication date Jan 21, 2016
- OPENED JOINT STOCK COMPANY "UNITED CHEMICAL COMPANY URALCHEM"
- Mikhail Vladimirovich Genkin
- C01 - INORGANIC CHEMISTRY
Information Patent Application
Method for Obtaining or Recovering Nitric Acid and Hydrofluoric Aci...
- Publication number 20130259793
- Publication date Oct 3, 2013
- KEY TECHNOLOGIES INDUSTRIEBAU GMBH
- Gerhard Frithum
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Application
METHOD FOR THE SEPARATION OF A NON-VOLATILE STRONG ACID FROM A SALT...
- Publication number 20120301389
- Publication date Nov 29, 2012
- ASHER VITNER LTD.
- Aharon Eyal
- C01 - INORGANIC CHEMISTRY
Information Patent Application
METHOD AND PLANT FOR REPROCESSING WASTE SULPHURIC ACIDS FROM NITRID...
- Publication number 20120168298
- Publication date Jul 5, 2012
- DE DIETRICH PROCESS SYSTEMS GMBH
- Gottfried Dichtl
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
PROCESS FOR THE MONONITRATION OF ALKANEDIOLS
- Publication number 20080146830
- Publication date Jun 19, 2008
- DIPHARMA S.P.A.
- Nevio FRANCESCUTTI
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Process for the mononitration of alkanediols
- Publication number 20060128983
- Publication date Jun 15, 2006
- Nevio Francescutti
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Method for the production of highly pure nitric acid
- Publication number 20050074389
- Publication date Apr 7, 2005
- Paul Hofmann
- C01 - INORGANIC CHEMISTRY
Information Patent Application
Apparatus and method for distilling waste liquids
- Publication number 20030079981
- Publication date May 1, 2003
- FUJITSU LIMITED
- Hiroshi Osuda
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
Method of treating an acid treatment solution, device for treating...
- Publication number 20020157952
- Publication date Oct 31, 2002
- Fuji Photo Film Co., Ltd.
- Toru Kimura
- C01 - INORGANIC CHEMISTRY

Purification Separation; Stabilisation

Industry

Parent Industries

Current Industry

Patents Grantslast 30 patents

Plant for the production of nitric acid, a related process and meth...

Plant for the production of nitric acid, a related process and meth...

Separation and concentration of nitrate from aqueous solutions and...

Plant for the production of nitric acid, a related process and meth...

Reverse osmosis for purifying mixtures of hydrofluoric acid and nit...

Method and plant for reprocessing waste sulphuric acids from nitrat...

Process for the mononitration of alkanediols

Process for the mononitration of alkanediols

Apparatus and method for distilling waste liquids

Apparatus and method for distilling waste liquids

Liquid hydrate regeneration of contaminated acids

On-site manufacture of ultra-high-purity nitric acid

Liquid hydrate regeneration of contaminated acids

Stabilized nitric acid compositions

Point-of-use recycling of wafer cleaning substances

Process for the treatment of an aqueous solution mainly containing...

Method for removing tetranitromethane from nitric acid

Process for the extraction of strontium from acidic solutions

Method for separating and recovering an acid

Filter device for acids and process for filtering inorganic acids

Method of extracting dinitrogen pentoxide from its mixture with nit...

Acid recycling system

Method for purification of acids from materials comprising acid and...

Process for the production or recovery of acids from metalliferous...

Membrane process for acid recovery

Method for producing high purity chemicals

Method for improving ruthenium decontamination efficiency in nitric...

Process for working up nitric acid

Method for removing fluoride contamination from nitric acid

Separation of acids

Patents Applicationslast 30 patents

MONO PRESSURE SYSTEM FOR PRODUCING NITRIC ACID AND METHOD OF OPERAT...

DUAL PRESSURE SYSTEM FOR PRODUCING NITRIC ACID AND METHOD OF OPERAT...

DEVICE AND METHOD FOR ON-LINE CONTINUOUS RECOVERY OF EXCESS NITRIC...

SYSTEM FOR EVACUATING NOx GASES FROM A NITRIC ACID STORAGE TANK

PROCESS FOR RECYCLING NITROGEN OXIDES FROM NITROSYL SULFURIC ACID T...

MONO-PRESSURE PLANT FOR THE PRODUCTION OF NITRIC ACID AND METHOD FO...

METHOD FOR PREPARING ELECTRONIC GRADE INORGANIC ACIDS FROM WASTE AC...

A PLANT FOR THE PRODUCTION OF NITRIC ACID, A RELATED PROCESS AND ME...

PLANT FOR THE PRODUCTION OF NITRIC ACID, A RELATED PROCESS AND METH...

SEPARATION AND CONCENTRATION OF NITRATE FROM AQUEOUS SOLUTIONS AND...

PROCESS FOR PRODUCING NITRIC ACID

A PLANT FOR THE PRODUCTION OF NITRIC ACID, A RELATED PROCESS AND ME...

A method for purification of circulating leaching solutions from ph...

Method for Obtaining or Recovering Nitric Acid and Hydrofluoric Aci...

METHOD FOR THE SEPARATION OF A NON-VOLATILE STRONG ACID FROM A SALT...

METHOD AND PLANT FOR REPROCESSING WASTE SULPHURIC ACIDS FROM NITRID...

PROCESS FOR THE MONONITRATION OF ALKANEDIOLS

Process for the mononitration of alkanediols

Method for the production of highly pure nitric acid

Apparatus and method for distilling waste liquids

Method of treating an acid treatment solution, device for treating...