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Extraction Process for Upgrading Sm2o3 Using Selective Stripping Techniques.

Authors
Bauer-DJ; Schultze-LE; Lindstrom-RE
Source
NTIS: PB 211 948 :9 pages
Link
NIOSHTIC No.
10008907
Abstract
A solvent-extraction system employing selective stripping of a preloaded organic phase was investigated for recovering sm2o3 from a light-group rare-earth mixture. The samarium concentrated in the organic phase, and a >99-pct-pure samarium oxide product was obtained at 76-pct recovery in a 20-stage operation using di(2- ethylhexyl) phosphoric acid (ehpa) as the organic phase. The stripping agent was a 1.5-Pct hydrochloric acid solution containing 200 g nh4cl per liter.
Publication Date
19720101
Document Type
IH; Report of Investigation;
Fiscal Year
1972
NTIS Accession No.
PB-211948
NTIS Price
A02
Identifying No.
RI 7663
NIOSH Division
RERC;
Source Name
NTIS: PB 211 948
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