EFFECT OF AMMONIUM-SALTS ON THE EXTRACTION OF COPPER USING HOSTAREX DK-16

Authors
RAO KS SAHOO PK
Citation
Ks. Rao et Pk. Sahoo, EFFECT OF AMMONIUM-SALTS ON THE EXTRACTION OF COPPER USING HOSTAREX DK-16, Hydrometallurgy, 33(1-2), 1993, pp. 211-218
Citations number
17
Categorie Soggetti
Metallurgy & Mining
Journal title
Hydrometallurgy → ACNP
ISSN journal
0304386X
Volume
33
Issue
1-2
Year of publication
1993
Pages
211 - 218
Database
ISI
SICI code
0304-386X(1993)33:1-2<211:EOAOTE>2.0.ZU;2-6
Abstract
The extraction of copper(II) from its solutions containing varying amo unts of ammonium sulphate (1-4 M) over a pH range of 2 to 10 using Hos tarex DK-16 in kerosene has been studied. Extraction seems to be less at higher pH due to the formation of free ammonia, which subsequently gives rise to non-extractable copper ammine complexes. The amount of c opper extracted against pH is shown in the distribution curves. Theore tically calculated distribution values have been compared with the exp erimental ones. The results were further substantiated with the FTIR s pectra of the extracts.