Recovery from nitration acids

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CPC
C01B17/94

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CCHEMISTRY METALLURGY C01Inorganic chemistry C01BNON-METALLIC ELEMENTS COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C C01B17/00Sulfur Compounds thereof

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C01B17/94Recovery from nitration acids

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Patents Grantslast 30 patents

Information Patent Grant
Process and device for recycling waste acid produced in process of...
- Patent number 9,527,801
- Issue date Dec 27, 2016
- ZHEJIANG RONGYAO BIOTECH CO., LTD.
- Rener Chen
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Method and system for producing nitrobenzene
- Patent number 9,139,508
- Issue date Sep 22, 2015
- Bayer Intellectual Property GmbH
- Bernd Pennemann
- C07 - ORGANIC 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 producing sulfuric acid with low levels of nitrogen oxides
- Patent number 8,815,202
- Issue date Aug 26, 2014
- E I du Pont de Nemours and Company
- Hasan Dindi
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Method and system for concentrating waste sulphuric acids from nitr...
- Patent number 7,988,942
- Issue date Aug 2, 2011
- DE Dietrich Process Systems GmbH
- Ulrich Walter
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Process for removing NOx from nitrosylsulphuric acid
- Patent number 6,238,639
- Issue date May 29, 2001
- Metallgesellschaft Aktiengesellschaft
- Georg Schmidt
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Process for purifying and concentrating spent sulfuric acids
- Patent number 6,156,288
- Issue date Dec 5, 2000
- Bayer Aktiengesellschaft
- Heiko Beckhaus
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
No.sub.x destruction in sulphuric acid
- Patent number 5,955,050
- Issue date Sep 21, 1999
- Marsulex Inc.
- Drew John Drexler
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Process for purification and concentration of sulfuric acid
- Patent number 5,275,701
- Issue date Jan 4, 1994
- Air Products and Chemicals, Inc.
- William J. Mazzafro
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Spent acid purification process
- Patent number 5,030,436
- Issue date Jul 9, 1991
- Ethyl Corporation
- J. Francis Steadman
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Removal of nitric acid from nitric acid-sulfuric acid mixtures
- Patent number 4,155,989
- Issue date May 22, 1979
- Ciba-Geigy Corporation
- Ralph Miller
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
3830904
- Patent number 3,830,904
- Issue date Aug 20, 1974
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
3749648
- Patent number 3,749,648
- Issue date Jul 31, 1973
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
2971819
- Patent number 2,971,819
- Issue date Feb 14, 1961
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
2366309
- Patent number 2,366,309
- Issue date Jan 2, 1945
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
2355702
- Patent number 2,355,702
- Issue date Aug 15, 1944
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
2348328
- Patent number 2,348,328
- Issue date May 9, 1944
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
2337025
- Patent number 2,337,025
- Issue date Dec 21, 1943
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
2315988
- Patent number 2,315,988
- Issue date Apr 6, 1943
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
2198686
- Patent number 2,198,686
- Issue date Apr 30, 1940
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
1873793
- Patent number 1,873,793
- Issue date Aug 23, 1932
- C01 - INORGANIC CHEMISTRY

Patents Applicationslast 30 patents

Information Patent Application
Process for workup of mixed acid and wastewater from the nitration...
- Publication number 20220002155
- Publication date Jan 6, 2022
- Hansjürgen WINTERBAUER
- C01 - INORGANIC CHEMISTRY
Information Patent Application
Process and Device for Recycling Waste Acid Produced in Process of...
- Publication number 20160185711
- Publication date Jun 30, 2016
- Zhejiang Rongyao Biotech CO., LTD.
- RENER CHEN
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
METHOD AND SYSTEM FOR PRODUCING NITROBENZENE
- Publication number 20140357905
- Publication date Dec 4, 2014
- Bernd Pennemann
- C07 - ORGANIC CHEMISTRY
Information Patent Application
PROCESS FOR PRODUCING SULFURIC ACID WITH LOW LEVELS OF NITROGEN OXIDES
- Publication number 20140056802
- Publication date Feb 27, 2014
- E I DU PONT DE NEMOURS AND COMPANY
- Hasan Dindi
- 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
METHOD AND SYSTEM FOR CONCENTRATING WASTE SULPHURIC ACIDS FROM NITR...
- Publication number 20100233069
- Publication date Sep 16, 2010
- QVF ENGINEERING GMBH
- Ulrich Walter
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
Process for the coupled production of chlorline and isocyanates
- Publication number 20070265466
- Publication date Nov 15, 2007
- Bayer MaterialScience AG
- Markus Dugal
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Process for removing organic impurities from sulfuric acid with liq...
- Publication number 20040126311
- Publication date Jul 1, 2004
- Andrew Sanderson
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...

Recovery from nitration acids

Industry

Parent Industries

Current Industry

Patents Grantslast 30 patents

Process and device for recycling waste acid produced in process of...

Method and system for producing nitrobenzene

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

Process for producing sulfuric acid with low levels of nitrogen oxides

Method and system for concentrating waste sulphuric acids from nitr...

Process for removing NOx from nitrosylsulphuric acid

Process for purifying and concentrating spent sulfuric acids

No.sub.x destruction in sulphuric acid

Process for purification and concentration of sulfuric acid

Spent acid purification process

Removal of nitric acid from nitric acid-sulfuric acid mixtures

3830904

3749648

2971819

2366309

2355702

2348328

2337025

2315988

2198686

1873793

Patents Applicationslast 30 patents

Process for workup of mixed acid and wastewater from the nitration...

Process and Device for Recycling Waste Acid Produced in Process of...

METHOD AND SYSTEM FOR PRODUCING NITROBENZENE

PROCESS FOR PRODUCING SULFURIC ACID WITH LOW LEVELS OF NITROGEN OXIDES

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

METHOD AND SYSTEM FOR CONCENTRATING WASTE SULPHURIC ACIDS FROM NITR...

Process for the coupled production of chlorline and isocyanates

Process for removing organic impurities from sulfuric acid with liq...