EFFECT OF LEAD NITRATE ON CYANIDATION OF ANTIMONIAL REFRACTORY GOLD AND SILVER ORES
10th International Multidisciplinary Scientific GeoConference - SGEM2010, www.sgem.org, SGEM2010 Conference Proceedings/ ISBN 10: 954-91818-1-2, June 20-26, 2010, Vol. 1, 639-644 pp
ABSTRACT
This paper deals with the effect of the addition of lead nitrate and ultra-fine grinding on
the cyanidation of an antimonial refractory gold and silver ore. The results indicated that
the recovery of gold was enhanced by 10%, but, silver extraction did not improve with
adding lead nitrate or increasing its concentration. Fine grinding (e.g. down to-5μm) did
not produce the desired effect on the extraction of Au and Ag.
Keywords: gold; silver; refractory ores; antimony minerals; lead nitrate; cyanidation
PAPER 2010/s04.4: EFFECT OF LEAD NITRATE ON CYANIDATION OF ANTIMONIAL REFRACTORY GOLD AND SILVER ORES
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