XAFS of Synthetic Iron(III)-Arsenate Co-Precipitates and Uranium Mill Neutralized Raffinate

Journal Article · Thu Feb 01 23:00:00 EST 2007 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.2644489· OSTI ID:21054605

Chen, N ^[1]; Jiang, D T ^[1]; Cutler, J ^[1]; Demopoulos, G P ^[2]; Rowson, J W ^[3]

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1. Canadian Light Source, University of Saskatchewan, Saskatoon, SK S7N 0X4 (Canada)
2. Department of Geological Sciences, University of Saskatchewan, Saskatoon, SK (Canada)
3. Department of Materials Engineering, McGill University, Montreal, QC H3A 2B2 (Canada)

XAFS studies were carried out for chemical speciation of arsenic species in uranium mill neutralized raffinate solids. To aid the structural characterization, synthetic iron(III)-arsenate co-precipitates were prepared to mimic the actual uranium mill tailings neutralization products. The principle components analysis method was used to validate the synthetic amorphous scorodite as a primary model compound for arsenate species in the raffinate samples under the specific precipitation conditions.

• OSTI ID: 21054605
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 882; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ABSORPTION SPECTRA
ABSORPTION SPECTROSCOPY
ARSENATES
ARSENIC
FEED MATERIALS PLANTS
FINE STRUCTURE
IRON
IRON IONS
PRECIPITATION
SOLIDS
TAILINGS
URANIUM
X-RAY SPECTRA
X-RAY SPECTROSCOPY