Skip directly to search Skip directly to A to Z list Skip directly to page options Skip directly to site content

NIOSHTIC-2 Publications Search

Search Results

Method for predicting equilibrium values in the solvent extraction of nickel in ammoniacal systems.

Authors
Russell-JH; Rickel-RL; Nilsen-DN
Source
Albany, OR: U.S. Department of the Interior, Bureau of Mines, RI 9344, 1991 Jan; :1-12
Link
NIOSHTIC No.
10008554
Abstract
A mathematical modeling method was developed by the U.S. Bureau of Mines for the prediction of the principal equilibrium species in the solvent extraction of nickel. Models were developed for the extraction of nickel from ammoniacal sulfate and carbonate solutions with commercial oxime extractants. Independent variables in the research were nickel concentration, ionic strength, ph of the initial aqueous phase, and extractants and their concentrations in the organic phase. Results from laboratory shakeout tests compared fairly well with predictions of the equilibrium concentrations of nickel and ph values. For example, the loading of nickel onto the extractant was predicted on average within +/-27 pct of the measured values, and the ph to within +/-0.17 Ph unit.
Keywords
Concentration-Composition; pH-value; Ammonium-sulfates; Ammonium-carbonates; Computerized-simulation; Experimental-design; Solvent-extraction; Nickel; Mathematical-models; Chemical-equilibrium
Publication Date
19910101
Document Type
IH; Report of Investigations
Fiscal Year
1991
NTIS Accession No.
PB92177138
NTIS Price
A03
Identifying No.
RI-9344
NIOSH Division
ALRC
Source Name
Albany, OR: U.S. Department of the Interior, Bureau of Mines, RI 9344
State
OR
TOP