Adsorption phenomena in hydrometallurgy, 1 The uptake of copper, nickel and cobalt by oxide adsorbents in aqueous ammoniacal solutions

K. Osseo-Asare; D. W. Fuerstenau

doi:10.1016/0301-7516(79)90015-2

Adsorption phenomena in hydrometallurgy, 1 The uptake of copper, nickel and cobalt by oxide adsorbents in aqueous ammoniacal solutions

K. Osseo-Asare, D. W. Fuerstenau

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Abstract

The uptake or adsorption of copper, nickel and cobalt by finely divided oxide solids in aqueous ammoniacal medium has been investigated experimentally in order to determine how adsorption on leach residues can affect the recovery of leachable metals. Hematite, rutile, alumina and quartz were used as model solid adsorbents. In the case of ammoniacal leach solutions the controlling metal species appears to be the aqueous neutral hydroxo species. Adsorption behavior was found to have maxima and minima as a function of pH, the magnitude of which depends on ammonia concentration, the metal cation, and the adsorbent.

Original language	English (US)
Pages (from-to)	85-104
Number of pages	20
Journal	International Journal of Mineral Processing
Volume	6
Issue number	2
DOIs	https://doi.org/10.1016/0301-7516(79)90015-2
State	Published - Oct 1979

All Science Journal Classification (ASJC) codes

Geotechnical Engineering and Engineering Geology
Geochemistry and Petrology

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10.1016/0301-7516(79)90015-2

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abstract = "The uptake or adsorption of copper, nickel and cobalt by finely divided oxide solids in aqueous ammoniacal medium has been investigated experimentally in order to determine how adsorption on leach residues can affect the recovery of leachable metals. Hematite, rutile, alumina and quartz were used as model solid adsorbents. In the case of ammoniacal leach solutions the controlling metal species appears to be the aqueous neutral hydroxo species. Adsorption behavior was found to have maxima and minima as a function of pH, the magnitude of which depends on ammonia concentration, the metal cation, and the adsorbent.",

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AB - The uptake or adsorption of copper, nickel and cobalt by finely divided oxide solids in aqueous ammoniacal medium has been investigated experimentally in order to determine how adsorption on leach residues can affect the recovery of leachable metals. Hematite, rutile, alumina and quartz were used as model solid adsorbents. In the case of ammoniacal leach solutions the controlling metal species appears to be the aqueous neutral hydroxo species. Adsorption behavior was found to have maxima and minima as a function of pH, the magnitude of which depends on ammonia concentration, the metal cation, and the adsorbent.

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Adsorption phenomena in hydrometallurgy, 1 The uptake of copper, nickel and cobalt by oxide adsorbents in aqueous ammoniacal solutions

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