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PROCESSING OF GOLD FROM MASTRA (GÜMÜŞHANE-TURKEY) ORE BY KNELSON GRAVITY CONCENTRATOR

AUTHOR/S: ALP, I., CELEP, O., DEVECI, H., YAZICI, E.Y.
Sunday 1 August 2010 by Libadmin2004

4th International Scientific Conference - SGEM2004, www.sgem.org, SGEM2004 Conference Proceedings/ ISBN: 954-918181-2, June 14-18, 2004, 259- 266pp

ABSTRACT

In this study, the mineralogical properties and the amenability of Mastra
(Gümüşhane-Turkey) gold ore to gravity recovery using a Knelson Concentrator
were examined. The mineralogical analysis of the ore has shown that gold occurs as
particles of 1-300 mm in size. In the gravity tests performed on the ground ore (-74
•m) a concentrate containing 771.95 g/t Au was produced at 47.15 % recovery and
1.58% yield. Enrichment ratios of Au, Ag, Cu, Pb, Zn, Ni and As were found to be
29.7; 16.7; 2.9; 1.58; 3.15; 1.46 and 2.35, respectively. These findings suggested that,
for Mastra ore, gravity concentration using a Knelson Concentrator could be used as
a preconcentration process prior to cyanidation.

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