Coal-oil gold agglomeration assisted flotation to recover gold from refractory ore

5th International Conference New Achievements in Materials and Environmental Science

材料科学;生态环境科学

Otsuki, A.^1 ; Yue, C.^2

Université de Lorraine, GeoRessources, UMR 7359 CNRS, ENSG, 2 rue du Doyen Marcel Roubault, TSA 70605, Vandoeuvre-lès-Nancy

54518, France^1

WA School of Mines, Curtin University, Kalgoorlie

WA, Australia^2

关键词: Different sizes;    Flotation process;    Gold recoveries;    Refractory gold ore;    Refractory ores;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/879/1/012021/pdf
DOI  :  10.1088/1742-6596/879/1/012021

来源: IOP

【 摘 要 】

This study aimed to investigate the applicability of coal-oil gold agglomeration (CGA) assisted flotation to recover gold from a refractory ore. The ore with the grade of 2-5 g/t was tested with the CGA-flotation process in six different size fractions from 38 to 300 urn using different collector types and dosages. In addition, the flotation without CGA was performed under the same condition for comparison. The results showed that the higher gold grade and recovery were achieved by applying the CGA-flotation, compared with the flotation without CGA. More than 20-60 times grade increase from the head grade was obtained with CGA-flotation. The elemental analysis of gold and sulphur explained their relationship with gold recovery. The results well indicated the applicability of CGA to upgrade the refractory gold ore.