Solvent extraction of molybdenum(VI) from acidic solution by fatty methylhydrazide

Abstract

Fatty methylhydrazides were used to extract molybdenum(VI) from hydrochloric acid in hexane. The extraction process has been investigated under different conditions. It was found that the extraction of molybdenum(VI) at low aqueous acidity ([HCl] ? 2 mmol mL-1) is governed by a cation exchange reaction and higher acidity ([HCl] ? 2 mmol mL-1) by a solvating reaction. This work presents the development of a low-cost and environmentally friendly extractant to recycle and recover molybdenum. 2012 Springer Science+Business Media Dordrecht.