Behavior of gallium and germanium associated with zinc sulfide concentrate in oxygen pressure leaching

• Autorzy: Liu F. , Liu Z. , Li Y. , Wilson B. P. , Lundstrom M.

Identyfikatory

DOI

10.5277/ppmp170229

• Języki publikacji: EN

Abstrakty

EN

The Fankou zinc concentrate (Guangdong province, China) was mineralogically characterized and results showed that the main germanium-bearing minerals in the sample comprised of zinc sulfide and galena, whereas gallium-bearing minerals were pyrite, sphalerite and silicate. Oxygen pressure leaching of zinc sulfide concentrate was carried out in order to investigate the effect of pressure, leaching time, sulfuric acid and copper concentrations on the leaching behavior of gallium and germanium. Under optimum conditions, leaching of Zn, Fe, Ge and Ga reached 98.21, 90.45, 97.45 and 96.65%, respectively. In the leach residues, it was determined that some new precipitates, such as PbSO4, CaSO4 and SiO2, were formed, which co-precipitated a certain amount of Ga and Ge from the leach solution. The results clearly indicated that Ga and Ge were much more difficult to leach than Zn, and provided answers to why the leaching efficiency of Ga is 10% lower when compared to Ge.

Słowa kluczowe

EN

zinc sulfide concentrate; gallium; germanium; pyrite; oxygen pressure leaching

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Physicochemical Problems of Mineral Processing
• Rocznik: 2017
• Tom: Vol. 53, iss. 2
• Strony: 1047--1060
• Opis fizyczny: Bibliogr. 34 poz., rys., tab.

Twórcy

autor

Liu F.

• School of Metallurgy and Environment, Central South University, Changsha 410083, China

autor

Liu Z.

• School of Metallurgy and Environment, Central South University, Changsha 410083, China

autor

Li Y.

• School of Metallurgy and Environment, Central South University, Changsha 410083, China

autor

Wilson B. P.

• Department of Materials Science and Engineering, Aalto University, School of Chemical Technology, Vuorimiehentie 2, 02150 Espoo, Finland

autor

Lundstrom M.

• Department of Materials Science and Engineering, Aalto University, School of Chemical Technology, Vuorimiehentie 2, 02150 Espoo, Finland

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