Extraction of gallium from Bayer liquor using extractant produced from cashew nutshell liquid. (August 2015)

• Record Type: Journal Article
• Authors: Hoang, Anh Son; Nguyen, Hong Nhung; Quoc Bui, Nam; Vu, Hong Son; Vo, Thanh Phong; Nguyen, Thanh Vinh; Minh Phan, Chi
• Is Part Of: Minerals engineering. Volume 79(2015)
• Page Start: 88
• Page End: 93
• Publication Date: 2015-08
• Subjects: Cashew nutshell liquid -- Solvent extraction -- Oximes -- Gallium extraction; Mines and mineral resources -- Periodicals; Ressources minérales -- Périodiques; Mines and mineral resources; Periodicals; Electronic journals; 622
• DOI: 10.1016/j.mineng.2015.05.012
• Languages: English
• ISSNs: 0892-6875

Abstract

Abstract : Graphical abstract: Highlights: Oxime compounds of alkyl-salicylaldehyde was produced from cashew nutshell liquid. Ga from the Bayer process liquor was extracted by the synthesized. Optimal oxime composition was 12%, which extracted 80% of Ga. Potential Ga extraction by natural-based oxime to reduce economical cost and environmental footprint. Abstract: Oximes of alkyl salicylaldehydes were synthesized from cardanol extracted from cashew nutshell liquid with SnCl4 as a catalyst. Molecular structures, physical and chemical properties of these oximes were investigated by spectroscopic data. These oximes were used as gallium extractant from a concentrated Bayer liquor of Alumina Tanrai (Vietnam). Results indicated that about 80% of gallium was recovered. This study opens up new opportunities to employ an environmentally friendly extractant for recovery of precious metals from industrial waste.