ATE137216T1 - N-ethyl-hydroxamsäure-chelatbildner - Google Patents

N-ethyl-hydroxamsäure-chelatbildner

Info

Publication number: ATE137216T1
Authority: AT; Austria
Prior art keywords: ethyl; alkyl group; hydroxamic acid; solutions; carbon atoms
Prior art date: 1991-07-19

Application number

AT92915129T

Other languages

English (en)

Inventor

Bruce Francis Monzyk

Original Assignee

Met Tech Systems Ltd

Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)

1991-07-19

Filing date

1992-07-02

Publication date

1996-05-15

1991-07-19 Priority claimed from US07/732,989 external-priority patent/US5174917A/en

1992-07-02 Application filed by Met Tech Systems Ltd filed Critical Met Tech Systems Ltd

1996-05-15 Application granted granted Critical

1996-05-15 Publication of ATE137216T1 publication Critical patent/ATE137216T1/de

Links

239000002253 acid Substances 0.000 title abstract 5
239000002738 chelating agent Substances 0.000 title 1
125000000217 alkyl group Chemical group 0.000 abstract 4
239000002184 metal Substances 0.000 abstract 4
229910052751 metal Inorganic materials 0.000 abstract 4
239000007864 aqueous solution Substances 0.000 abstract 2
125000004432 carbon atom Chemical group C* 0.000 abstract 2
150000002739 metals Chemical class 0.000 abstract 2
239000003960 organic solvent Substances 0.000 abstract 2
239000000243 solution Substances 0.000 abstract 2
150000007513 acids Chemical class 0.000 abstract 1
239000003795 chemical substances by application Substances 0.000 abstract 1
125000004122 cyclic group Chemical group 0.000 abstract 1
239000000839 emulsion Substances 0.000 abstract 1
230000003301 hydrolyzing effect Effects 0.000 abstract 1
239000003350 kerosene Substances 0.000 abstract 1
238000005191 phase separation Methods 0.000 abstract 1
238000000638 solvent extraction Methods 0.000 abstract 1

Classifications

- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C259/00—Compounds containing carboxyl groups, an oxygen atom of a carboxyl group being replaced by a nitrogen atom, this nitrogen atom being further bound to an oxygen atom and not being part of nitro or nitroso groups
- C07C259/04—Compounds containing carboxyl groups, an oxygen atom of a carboxyl group being replaced by a nitrogen atom, this nitrogen atom being further bound to an oxygen atom and not being part of nitro or nitroso groups without replacement of the other oxygen atom of the carboxyl group, e.g. hydroxamic acids
- C07C259/06—Compounds containing carboxyl groups, an oxygen atom of a carboxyl group being replaced by a nitrogen atom, this nitrogen atom being further bound to an oxygen atom and not being part of nitro or nitroso groups without replacement of the other oxygen atom of the carboxyl group, e.g. hydroxamic acids having carbon atoms of hydroxamic groups bound to hydrogen atoms or to acyclic carbon atoms
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
- C22B3/20—Treatment or purification of solutions, e.g. obtained by leaching
- C22B3/26—Treatment or purification of solutions, e.g. obtained by leaching by liquid-liquid extraction using organic compounds
- C22B3/32—Carboxylic acids
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling

Landscapes

Chemical & Material Sciences (AREA)
Organic Chemistry (AREA)
Engineering & Computer Science (AREA)
Materials Engineering (AREA)
Geology (AREA)
Geochemistry & Mineralogy (AREA)
Manufacturing & Machinery (AREA)
General Life Sciences & Earth Sciences (AREA)
Life Sciences & Earth Sciences (AREA)
Mechanical Engineering (AREA)
Metallurgy (AREA)
Environmental & Geological Engineering (AREA)
Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Extraction Or Liquid Replacement (AREA)
Manufacture And Refinement Of Metals (AREA)
Detergent Compositions (AREA)

AT92915129T 1991-07-19 1992-07-02 N-ethyl-hydroxamsäure-chelatbildner ATE137216T1 (de)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
US07/732,989 US5174917A (en)	1991-07-19	1991-07-19	Compositions containing n-ethyl hydroxamic acid chelants
US07/890,882 US5328626A (en)	1991-07-19	1992-05-29	N-ethyl hydroxamic acid chelants

Publications (1)

Publication Number	Publication Date
ATE137216T1 true ATE137216T1 (de)	1996-05-15

Family

ID=27112501

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
AT92915129T ATE137216T1 (de)	1991-07-19	1992-07-02	N-ethyl-hydroxamsäure-chelatbildner

Country Status (7)

Country	Link
US (2)	US5328626A (de)
EP (1)	EP0598747B1 (de)
JP (1)	JP3292730B2 (de)
AT (1)	ATE137216T1 (de)
CA (1)	CA2113650C (de)
DE (1)	DE69210245T2 (de)
WO (1)	WO1993002047A1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US5328626A (en) *	1991-07-19	1994-07-12	Met-Tech Systems, Ltd.	N-ethyl hydroxamic acid chelants
US8747789B2 (en) *	2010-04-06	2014-06-10	Nalco Company	Metal scavenging polymers

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3821351A (en) *	1971-06-03	1974-06-28	Kerr Mc Gee Corp	Solvent extraction of metal ions using n-substituted hydroxamic acids
US4975253A (en) *	1983-12-27	1990-12-04	Monsanto Company	Solvent extraction of nickel using hydroxamic acids
US4604407A (en) *	1985-04-04	1986-08-05	E. R. Squibb & Sons, Inc.	Hydroxamates
US5030427A (en) *	1986-12-04	1991-07-09	Monsanto Company	Gallium purification
US4741887A (en) *	1986-12-04	1988-05-03	Monsanto Company	Gallium complexes and solvent extraction of gallium
US4874539A (en) *	1987-08-06	1989-10-17	American Cyanamid Company	Carboxy hydroxamic acid polymers and their use as detergent additives
US5328626A (en) *	1991-07-19	1994-07-12	Met-Tech Systems, Ltd.	N-ethyl hydroxamic acid chelants
US5174917A (en) *	1991-07-19	1992-12-29	Monsanto Company	Compositions containing n-ethyl hydroxamic acid chelants

1992
- 1992-05-29 US US07/890,882 patent/US5328626A/en not_active Expired - Lifetime
- 1992-07-02 DE DE69210245T patent/DE69210245T2/de not_active Expired - Fee Related
- 1992-07-02 WO PCT/US1992/005622 patent/WO1993002047A1/en not_active Ceased
- 1992-07-02 AT AT92915129T patent/ATE137216T1/de not_active IP Right Cessation
- 1992-07-02 CA CA002113650A patent/CA2113650C/en not_active Expired - Lifetime
- 1992-07-02 JP JP50282693A patent/JP3292730B2/ja not_active Expired - Fee Related
- 1992-07-02 EP EP92915129A patent/EP0598747B1/de not_active Expired - Lifetime
1994
- 1994-07-11 US US08/272,834 patent/US5487842A/en not_active Expired - Lifetime

Also Published As

Publication number	Publication date
JP3292730B2 (ja)	2002-06-17
EP0598747B1 (de)	1996-04-24
WO1993002047A1 (en)	1993-02-04
US5487842A (en)	1996-01-30
DE69210245T2 (de)	1996-10-31
JPH06509114A (ja)	1994-10-13
US5328626A (en)	1994-07-12
CA2113650A1 (en)	1993-02-04
EP0598747A1 (de)	1994-06-01
DE69210245D1 (de)	1996-05-30
CA2113650C (en)	2002-11-26

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Legal Events

Date	Code	Title	Description
1996-10-15	RER	Ceased as to paragraph 5 lit. 3 law introducing patent treaties