Solvent extraction of indium from different aqueous solutions (sulphate, nitrate and chloride) by lonquest 801 has been studied. The effect of extractant concentration, aqueous phase pH, presence of other metals in solution and contact time on extraction yields have been investigated. The obtained results show that indium can be selectively separated with high extraction yields from sulphate solutions containing iron, zinc and copper by using lonquest 801 in kerosene. After extraction and stripping, an overall recovery of indium of about 98% has been reached and the indium concentration in the final solution is three times higher than in the leach liquor.
Solvent extraction of indium by ionquest 801 / Lupi, Carla; M., Morgana; Pilone, Daniela; V., Siepe. - STAMPA. - (2005), pp. 2205-2211. (Intervento presentato al convegno REWAS'04 - Global Symposium on Recycling, Waste Treatment and Clean Technology tenutosi a Madrid nel 26 September 2004 through 29 September 2004).
Solvent extraction of indium by ionquest 801
LUPI, Carla;PILONE, Daniela;
2005
Abstract
Solvent extraction of indium from different aqueous solutions (sulphate, nitrate and chloride) by lonquest 801 has been studied. The effect of extractant concentration, aqueous phase pH, presence of other metals in solution and contact time on extraction yields have been investigated. The obtained results show that indium can be selectively separated with high extraction yields from sulphate solutions containing iron, zinc and copper by using lonquest 801 in kerosene. After extraction and stripping, an overall recovery of indium of about 98% has been reached and the indium concentration in the final solution is three times higher than in the leach liquor.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
