Journal of Siberian Federal University. Chemistry / Extraction of Gallium from Zinc Sulfate Solutions

Full text (.pdf)
Issue
Journal of Siberian Federal University. Chemistry. 2026 19 (1)
Authors
Grigorieva, Natalya A.; Fleitlikh, Isaak Yu.; Mikhaylenko, Mikhail A.
Contact information
Grigorieva, Natalya A. : Institute of Chemistry and Chemical Technology SB RAS, Federal Research Center “Krasnoyarsk Science Center SB RAS” (Krasnoyarsk, Russian Federation); ; Fleitlikh, Isaak Yu.: Institute of Chemistry and Chemical Technology SB RAS, Federal Research Center “Krasnoyarsk Science Center SB RAS” (Krasnoyarsk, Russian Federation); Mikhaylenko, Mikhail A. : Sunresin New Materials Co. Ltd. (Xi`an, People’s Republic of China)
Keywords
gallium; zinc sulfate solutions; extraction; sorption; poly(2-ethylhexyl) phosphonitrile acid; ion exchangers
Abstract

Zinc production solutions are potential sources of gallium. This study examined Ga extraction from solutions with poly(2-ethylhexyl)phosphonitrile acid (P2EHPNA), as well as gallium sorption by various ion exchangers. Ga is extracted very efficiently by P2EHPNA: at an extractant concentration of 0,4 M in kerosene, three extraction stages were sufficient to achieve 97 % Ga recovery, while Zn recovery was only 2 %. Gallium sorption by the following ion exchange resins was also studied: Seplite® LSC 750, MM 2026, and Seplite® LSC 738. Seplite® LSC 750 (a macroporous, chelating resin with an aminophosphonic acid group) is of greatest interest for gallium extraction, demonstrating high Ga-Zn separation factors (βGa/Zn = 700–725). Clearly, P2EHPNA and Seplite® LSC 750 are of undoubted interest for the separation of gallium from zinc solutions

Pages
104–113
EDN
OJDKER
Paper at repository of SibFU
https://elib.sfu-kras.ru/handle/2311/158194