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Method for predicting equilibrium values in the solvent extraction of nickel in ammoniacal systems
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Description:"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." - NIOSHTIC-2
NIOSHTIC no. 10008554
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