Purification

Industry

CPC
C01B21/1481

This industry / category may be too specific. Please go to a parent level for more data

Parent Industries

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

Current Industry

C01B21/1481Purification

Industries

Please log in for detailed analytics

Patents Grantslast 30 patents

Information Patent Grant
Process for removing hydrazine from hydroxlyamine solutions
- Patent number 8,703,088
- Issue date Apr 22, 2014
- Cytec Technology Corp.
- Morris Lewellyn
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Process for producing hydroxylamine
- Patent number 7,491,846
- Issue date Feb 17, 2009
- Showa Denko K.K.
- Takanori Aoki
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Process for manufacturing highly concentrated hydroxylamine
- Patent number 7,172,744
- Issue date Feb 6, 2007
- BASF Aktiengesellschaft
- Chin-Hsiung Chang
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of hydroxylammonium
- Patent number 7,090,817
- Issue date Aug 15, 2006
- DSM IP Assets B.V.
- Arno Herald Benneker
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Process for the separation of a hydroxylammonium salt solution
- Patent number 6,699,452
- Issue date Mar 2, 2004
- DSM N.V.
- Theodorus F. M. Riesthuis
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Method for preparing highly stabilized hydroxylamine solutions
- Patent number 6,534,681
- Issue date Mar 18, 2003
- BASF Aktiengesellschaft
- Otto Watzenberger
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Method for producing aqueous hydroxylamine solutions which are subs...
- Patent number 6,524,545
- Issue date Feb 25, 2003
- BASF Aktiengesellschaft
- Otto Watzenberger
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
System for the ion exchange purification of hydroxylamine
- Patent number 6,350,614
- Issue date Feb 26, 2002
- Concept Sciences, Inc.
- Brian D. Heath
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Aqueous hydroxylamine solution
- Patent number 6,300,518
- Issue date Oct 9, 2001
- Nissin Chemical Co., Ltd.
- Naoshi Imai
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Ultrapure hydroxylamine compound solutions and process of making same
- Patent number 6,235,162
- Issue date May 22, 2001
- Sachem, Inc.
- Hossein Sharifian
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Method for producing highly pure aqueous hydroxylamine solutions
- Patent number 6,153,799
- Issue date Nov 28, 2000
- BASF Aktiengesellschaft
- Otto Watzenberger
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Methods of purifying hydroxylamine solutions and converting hydroxy...
- Patent number 5,904,823
- Issue date May 18, 1999
- Sachem, Inc.
- Hossein Sharifian
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Purification of hydroxylamine
- Patent number 5,872,295
- Issue date Feb 16, 1999
- Concept Sciences, Inc.
- Francis Michelotti
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Purification of hydroxylamine
- Patent number 5,788,946
- Issue date Aug 4, 1998
- Ashland Inc.
- Floyd Riddle
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Method for manufacturing hydroxylamine
- Patent number 5,762,897
- Issue date Jun 9, 1998
- AlliedSignal Inc.
- Chin-Hsiung Chang
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation and purification of a hydroxylammonium...
- Patent number 5,362,398
- Issue date Nov 8, 1994
- D.S.M. N.V.
- Carolus H. M. Kamphuis
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Process for treating aqueous solutions of hydroxylamine salts conta...
- Patent number 5,318,762
- Issue date Jun 7, 1994
- Olin Corporation
- David W. Cawlfield
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Process for removing acid from a hydroxylamine salt solution contai...
- Patent number 5,259,934
- Issue date Nov 9, 1993
- Sachem, Inc.
- Hossein Sharifian
- C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
Information Patent Grant
Removal of Fe.sup.(II) from hydroxylamine sulfate solution
- Patent number 5,068,037
- Issue date Nov 26, 1991
- Allied-Signal Inc.
- Chin-Hsiung Chang
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
3105741
- Patent number 3,105,741
- Issue date Oct 1, 1963
- C01 - INORGANIC CHEMISTRY

Patents Applicationslast 30 patents

Information Patent Application
PROCESS FOR REMOVING HYDRAZINE FROM HYDROXLYAMINE SOLUTIONS
- Publication number 20130315812
- Publication date Nov 28, 2013
- Cytec Technology Corp.
- Morris LEWELLYN
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Application
PROCESSES FOR REMOVING HYDRAZINE FROM HYDROXYLAMINE SOLUTIONS
- Publication number 20120152852
- Publication date Jun 21, 2012
- Cytec Technology Corp.
- Morris LEWELLYN
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
METHOD FOR REMOVING ORGANIC CONTAMINANTS
- Publication number 20090272700
- Publication date Nov 5, 2009
- Shu-Hung YANG
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
Process for Producing Hydroxylamine
- Publication number 20080193362
- Publication date Aug 14, 2008
- Takanori Aoki
- C01 - INORGANIC CHEMISTRY
Information Patent Application
Method and device for stripping organic contaminants
- Publication number 20070253885
- Publication date Nov 1, 2007
- China Petrochemical Development Corporation
- Shu-Hung Yang
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
Process for the preparation of hydroxylammonium
- Publication number 20050047987
- Publication date Mar 3, 2005
- Arno H. Benneker
- C01 - INORGANIC CHEMISTRY
Information Patent Application
Process for manufacturing highly concentrated hydroxylamine
- Publication number 20040213725
- Publication date Oct 28, 2004
- Chin-Hsiung Chang
- C01 - INORGANIC CHEMISTRY
Information Patent Application
Process for the separation of a hydroxylammonium salt solution
- Publication number 20030064016
- Publication date Apr 3, 2003
- Theodorus F.M. Riesthuis
- C01 - INORGANIC CHEMISTRY
Information Patent Application
Aqueous hydroxylamine solution
- Publication number 20010034312
- Publication date Oct 25, 2001
- Naoshi Imai
- C01 - INORGANIC CHEMISTRY

Purification

Industry

Parent Industries

Current Industry

Patents Grantslast 30 patents

Process for removing hydrazine from hydroxlyamine solutions

Process for producing hydroxylamine

Process for manufacturing highly concentrated hydroxylamine

Process for the preparation of hydroxylammonium

Process for the separation of a hydroxylammonium salt solution

Method for preparing highly stabilized hydroxylamine solutions

Method for producing aqueous hydroxylamine solutions which are subs...

System for the ion exchange purification of hydroxylamine

Aqueous hydroxylamine solution

Ultrapure hydroxylamine compound solutions and process of making same

Method for producing highly pure aqueous hydroxylamine solutions

Methods of purifying hydroxylamine solutions and converting hydroxy...

Purification of hydroxylamine

Purification of hydroxylamine

Method for manufacturing hydroxylamine

Process for the preparation and purification of a hydroxylammonium...

Process for treating aqueous solutions of hydroxylamine salts conta...

Process for removing acid from a hydroxylamine salt solution contai...

Removal of Fe.sup.(II) from hydroxylamine sulfate solution

3105741

Patents Applicationslast 30 patents

PROCESS FOR REMOVING HYDRAZINE FROM HYDROXLYAMINE SOLUTIONS

PROCESSES FOR REMOVING HYDRAZINE FROM HYDROXYLAMINE SOLUTIONS

METHOD FOR REMOVING ORGANIC CONTAMINANTS

Process for Producing Hydroxylamine

Method and device for stripping organic contaminants

Process for the preparation of hydroxylammonium

Process for manufacturing highly concentrated hydroxylamine

Process for the separation of a hydroxylammonium salt solution

Aqueous hydroxylamine solution