In:
Materials Testing, Walter de Gruyter GmbH, Vol. 58, No. 11-12 ( 2016-11-16), p. 1001-1004
Kurzfassung:
A batch-type and lab-scale indium recovery method was developed via electrowinning (EW) to prove mass production-capability and economic recovery of indium from InCl 3 crystals precipitated from the solvent extraction using a suitable phosphoric acid-based extractant. More precisely, the InCl 3 crystals thus precipitated were further dissolved in three different aqueous electrolyte mixtures for subsequent electrowinning experiments: 0.05 M InCl 3 – 0.7 M LiCl; 0.05M InCl 3 ; 0.05 M InCl 3 – 0.7 M NaCl. The effect of adding LiCl and NaCl supporting electrolytes to InCl 3 on overall EW efficiency was thus comprehensibly investigated. Direct electroreduction of InCl 3 using 0.05 M InCl 3 aqueous electrolyte resulted in the highest indium metal purity of 99.996 % deposited on the copper cathode. Thus, metallic contents obtained from the validation experiments were further characterized using various analytical tools such as inductively coupled plasma/atomic emission spectroscopy (ICP/AES), scanning electron microscopy-energy dispersive X-ray spectroscopy (SEM-EDS) and X-ray fluorescence (XRF).
Materialart:
Online-Ressource
ISSN:
2195-8572
,
0025-5300
Sprache:
Englisch
Verlag:
Walter de Gruyter GmbH
Publikationsdatum:
2016
ZDB Id:
2280363-4
ZDB Id:
206395-5
