Removal of gold(III) from hydrochloric acid solutions using N-(diethylthiophosphoryl)-aza[18]crown-6 immobilized into membranes and Amberlite XAD-4 resin. Issue 15 (1st November 2016)

• Record Type: Journal Article
• Authors: Zawierucha, Iwona; Kolodziejska, Marta; Kozlowska, Jolanta; Kozlowski, Cezary
• Is Part Of: Separation science and technology. Volume 51:Issue 15/16(2016)
• Page Start: 2657
• Page End: 2666
• Publication Date: 2016-11-01
• Subjects: N-(diethylthiophosphoryl)-aza[18]crown-6 -- impregnated Amberlite XAD-4 resin -- solid phase extraction -- polymer inclusion membranes -- gold(III); Separation (Technology) -- Periodicals; 660.284205
• DOI: 10.1080/01496395.2016.1200091
• Languages: English
• ISSNs: 0149-6395

Abstract

ABSTRACT: In this study experiments were performed to evaluate the Au(III) removal efficiency using a novel ion carrier – N-(diethylthiophosphoryl)-aza[18]crown-6 immobilized into polymer inclusion membranes (PIMs) and Amberlite (XAD-4) resin. This lariat ether, applied in the membrane and in solid phase extraction (SPE) systems, was used for the transport and removal of gold(III) from chloride solutions. Several influencing factors, such as solution acidity, the amount of extractant, the concentration of Au(III) ions, stripping agents and metal ions' recovery behaviour, were investigated. It was found that the lariat ether immobilized in membranes and Amberlite XAD-4 resin effectively extracted gold from chloride aqueous media. Under optimal conditions, the Au(III) removal efficiencies for PIM and impregnated resin were 98.9 and 92.9%, respectively.