Combined Column and Mechanical Flotation Cell Process for the Beneficiation of Sanshandao Gold Ore

Zilong Ma; Aosheng Yang; Yinfei Liao; Lei Wang; Yijun Cao

doi:10.1021/acsomega.1c04489

Combined Column and Mechanical Flotation Cell Process for the Beneficiation of Sanshandao Gold Ore

ACS Omega. 2021 Dec 3;6(49):33607-33613. doi: 10.1021/acsomega.1c04489. eCollection 2021 Dec 14.

Authors

Zilong Ma¹, Aosheng Yang², Yinfei Liao^{1

3}, Lei Wang¹, Yijun Cao¹

Affiliations

¹ National Engineering Research Center of Coal Preparation and Purification, China University of Mining and Technology, Xuzhou 221116, Jiangsu, P. R. China.
² School of Chemical Engineering and Technology, China University of Mining and Technology, Xuzhou 221116, Jiangsu, P. R. China.
³ Key Laboratory of Coal Processing and Efficient Utilization of Ministry of Education, China University of Mining and Technology, Xuzhou 221116, Jiangsu, P. R. China.

Abstract

Semi-industrial tests were conducted to investigate the feasibility and efficiency of a combined column and mechanical flotation cell process for the beneficiation of Sanshandao low-grade gold ore. The results showed that the performance of the combined flotation process of the cyclonic-static microbubble flotation column (FCSMC) and mechanical flotation cells was superior to that of the mechanical flotation cell, while the flowsheet was simplified. FCSMC is efficient when used on fine particles, whereas a mechanical flotation cell is effective for coarse particles. Thus, the combined flotation process exhibited a better separation performance by employing the strengths of both methods. The use of the combined FCSMC and cell flotation process showed promising results for a producing grade of 48.24 g/t gold with 96.13% recovery. The combined column and cell flotation process introduces a new approach for the separation of low-grade gold ore.