U.S. Department of EnergyOffice of Scientific and Technical Information
Extracting metal ions with diphosphonic acid, or derivative thereof
Abstract
Thermodynamically-unstable complexing agents which are diphosphonic acids and diphosphonic acid derivatives (or sulfur 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. 1 fig.
- Inventors:
- Publication Date:
- OSTI Identifier:
- 7244712
- Patent Number(s):
- US 5332531; A
- Application Number:
- PPN: US 7-898386
- Assignee:
- Arch Development Corp., Chicago, IL (United States)
- DOE Contract Number:
- W-31109-ENG-38
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 10 Jun 1992
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; METALS; CHEMICAL REACTIONS; MATERIALS RECOVERY; PHOSPHONIC ACIDS; SYNTHESIS; TECHNOLOGY ASSESSMENT; WASTE PROCESSING; ELEMENTS; MANAGEMENT; ORGANIC ACIDS; ORGANIC COMPOUNDS; ORGANIC PHOSPHORUS COMPOUNDS; PROCESSING; WASTE MANAGEMENT; 320305* - Energy Conservation, Consumption, & Utilization- Industrial & Agricultural Processes- Industrial Waste Management
Citation Formats
Horwitz, E P, Gatrone, R C, and Nash, K L. Extracting metal ions with diphosphonic acid, or derivative thereof. United States: N. p., 1994.
Web.
Horwitz, E P, Gatrone, R C, & Nash, K L. Extracting metal ions with diphosphonic acid, or derivative thereof. United States.
Horwitz, E P, Gatrone, R C, and Nash, K L. 1994.
"Extracting metal ions with diphosphonic acid, or derivative thereof". United States.
@article{osti_7244712,
title = {Extracting metal ions with diphosphonic acid, or derivative thereof},
author = {Horwitz, E P and Gatrone, R C and Nash, K L},
abstractNote = {Thermodynamically-unstable complexing agents which are diphosphonic acids and diphosphonic acid derivatives (or sulfur 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. 1 fig.},
doi = {},
url = {https://www.osti.gov/biblio/7244712},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1994},
month = {7}
}