Evolution of gold gravity recovery in grinding circuits — A critical review

CIM Journal, Vol. 4, No. 3, 2013
S. Koppalkar MET-CHEM, Montreal, Quebec, Canada A. Bouajila G Mining Services Inc., Brossard, Quebec, Canada C. Gagnon and S. Makni COREM, Quebec, Quebec, Canada ABSTRACT
Abstract This paper briefly reviews the gravity recovery between conventional and centrifugal gravity
separators. The advantages of semicontinuous gravity separators will be discussed, as will techniques
for upgrading the gravity concentrates. The research efforts in optimizing semicontinuous gravity separators
will be recalled. An innovative gravity circuit for eliminating or minimizing the use of complex
processing schemes will be reviewed. Ongoing gold gravity research has revealed that gold particle
shape transformation is one of the main factors explaining the lower recoveries of the plant units. Efforts
to devise possible remedies for improving plant gravity recovery will be discussed.
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