Membrane extraction with thermodynamically unstable diphosphonic acid derivatives
Abstract
Thermodynamically-unstable complexing agents which are diphosphonic acids and diphosphonic acid derivatives (or sulphur containing analogs), like carboxyhydroxymethanediphosphonic acid and vinylidene-1,1-diphosphonic acid, are capable of complexing with metal ions, and especially metal ions in the II, III, IV, V and VI oxidation states, to form stable, water-soluble metal ion complexes in moderately alkaline to highly-acidic media. However, the complexing agents can be decomposed, under mild conditions, into non-organic compounds which, for many purposes are environmentally-nondamaging compounds thereby degrading the complex and releasing the metal ion for disposal or recovery. Uses for such complexing agents as well as methods for their manufacture are also described.
- Inventors:
-
- Argonne, IL
- Issue Date:
- Research Org.:
- Argonne National Laboratory (ANL), Argonne, IL (United States)
- OSTI Identifier:
- 871190
- Patent Number(s):
- 5678242
- Assignee:
- Arch Development Corporation (Chicago, IL)
- Patent Classifications (CPCs):
-
B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01D - SEPARATION
C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01B - NON-METALLIC ELEMENTS
- DOE Contract Number:
- W-31109-ENG-38
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- membrane; extraction; thermodynamically; unstable; diphosphonic; acid; derivatives; thermodynamically-unstable; complexing; agents; acids; sulphur; containing; analogs; carboxyhydroxymethanediphosphonic; vinylidene-1; 1-diphosphonic; capable; metal; especially; ii; iii; oxidation; form; stable; water-soluble; complexes; moderately; alkaline; highly-acidic; media; decomposed; mild; conditions; non-organic; compounds; purposes; environmentally-nondamaging; degrading; complex; releasing; disposal; recovery; methods; manufacture; described; form stable; thermodynamically unstable; water-soluble metal; complexing agents; organic compound; organic compounds; complexing agent; soluble metal; phosphonic acid; diphosphonic acid; mild conditions; sulphur containing; acid derivatives; acid derivative; acidic media; methanediphosphonic acid; thermodynamically-unstable complexing; carboxyhydroxymethanediphosphonic acid; diphosphonic acids; containing analogs; /588/423/
Citation Formats
Horwitz, Earl Philip, Gatrone, Ralph Carl, and Nash, Kenneth LaVerne. Membrane extraction with thermodynamically unstable diphosphonic acid derivatives. United States: N. p., 1997.
Web.
Horwitz, Earl Philip, Gatrone, Ralph Carl, & Nash, Kenneth LaVerne. Membrane extraction with thermodynamically unstable diphosphonic acid derivatives. United States.
Horwitz, Earl Philip, Gatrone, Ralph Carl, and Nash, Kenneth LaVerne. Wed .
"Membrane extraction with thermodynamically unstable diphosphonic acid derivatives". United States. https://www.osti.gov/servlets/purl/871190.
@article{osti_871190,
title = {Membrane extraction with thermodynamically unstable diphosphonic acid derivatives},
author = {Horwitz, Earl Philip and Gatrone, Ralph Carl and Nash, Kenneth LaVerne},
abstractNote = {Thermodynamically-unstable complexing agents which are diphosphonic acids and diphosphonic acid derivatives (or sulphur containing analogs), like carboxyhydroxymethanediphosphonic acid and vinylidene-1,1-diphosphonic acid, are capable of complexing with metal ions, and especially metal ions in the II, III, IV, V and VI oxidation states, to form stable, water-soluble metal ion complexes in moderately alkaline to highly-acidic media. However, the complexing agents can be decomposed, under mild conditions, into non-organic compounds which, for many purposes are environmentally-nondamaging compounds thereby degrading the complex and releasing the metal ion for disposal or recovery. Uses for such complexing agents as well as methods for their manufacture are also described.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Wed Jan 01 00:00:00 EST 1997},
month = {Wed Jan 01 00:00:00 EST 1997}
}
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