Heap leaching of carbonaceous ores using a blinding agent, P. Koblova, G. Voiloshnikov, and Y. Musin
- Organization:
- The Southern African Institute of Mining and Metallurgy
- Pages:
- 6
- File Size:
- 297 KB
- Publication Date:
- Jan 1, 2020
Abstract
Preg-robbing activity of the carbonaceous matter negatively impacts the process of precious
metals recovery from gold-bearing ores and concentrates. In this paper, ore heap leaching (HL) using a
blinding agent which inhibits ‘preg-robbing’ is a promising method. A carbonaceous ‘preg-robbing’
gold ore with head gold grade of 1.92 g/t from a Russian deposit was studied. Corg was 1.12%. In
accordance with the Irgiredmet technique, preg-robbing activity was 65.3%. Surfactant reagent DN was
used as the blinding agent. Column tests on the ore HL were conducted using two options. They were:
a conventional flow sheet (Column 1) and a flow sheet with the reagent addition (Column 2). Gold
recovery in Column 1 was 55.39% while gold recovery in Column 2 was 68.48%. The test results
confirmed the efficiency of reagent DN.
Keywords: Carbonaceous ore, organic blanking, preg-robbing, recovery
Citation
APA: (2020) Heap leaching of carbonaceous ores using a blinding agent, P. Koblova, G. Voiloshnikov, and Y. Musin
MLA: Heap leaching of carbonaceous ores using a blinding agent, P. Koblova, G. Voiloshnikov, and Y. Musin. The Southern African Institute of Mining and Metallurgy, 2020.