Chemistry of inorganic compounds – Treating mixture to obtain metal containing compound – Iron group metal
Patent
1993-10-25
1995-11-28
Bos, Steven
Chemistry of inorganic compounds
Treating mixture to obtain metal containing compound
Iron group metal
B01D 1100, C22B 2300
Patent
active
054705525
ABSTRACT:
The recovery of nickel from aqueous ammoniacal solutions containing nickel values by extraction of the nickel values therefrom with an organic solution containing an oxime extractant and an equilibrium modifier followed by stripping of the nickel values from the organic solution by a concentrated aqueous ammoniacal solution from which the nickel can then be recovered. The use of the equilibrium modifier and the concentrated ammonia stripping solution provides advantages in that (1) there is an increase in the nickel transfer of the reagent, (2) the strip solution can be built to a higher nickel concentration giving a lower volume nickel containing solution for further processing and (3) a lesser number of stripping stages are required.
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Kordosky Gary A.
Olafson Stephen M.
Bos Steven
Henkel Corporation
Jaeschke Wayne C.
Span Patrick J.
Szoke Ernest G.
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