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Centrifugal separation of gold experienced a regain in activity with the advent of the Knudsen Bowl. This device appears extremely efficient in recovering fine gold, although very little published data are available.
If a significant portion of gold is fine (<300 µm), a high G-Force centrifugal concentrator can be used to improve recovery. In the case of low grade (< 1 g/t) free-milling gold deposits, the ore is often crushed and heap leached.
Placer Gold Series Centrifugal Concentrators for Gold Recovery. The Placer Series by Hy-G provides exceptional recovery of fine gold and other minerals and metals and continuously concentrates up to 24 hours before clean-out is required.
DOVE Gold Concentrator is economical and efficient gold separator for recovery of Placer (Alluvial) Gold, Hard Rock Gold and Gold and other heavy minerals from old tailings. It is environment-friendly, requires no chemicals, additives or regents, utilize only water.
Savona Equipment is your source for New, Used, and Reconditioned Gold Recovery Centrifugal Concentrators including Knelson and Falcon Concentrators for recovering fine gold and other precious metals from concentrate.
The i-CON is a centrifugal gold gravity concentrator designed specifically for artisanal mining. The technology is based on the batch-type Falcon Gravity Concentrator. i-CON's equipment is backed by Sepro Mineral Systems Corp.
Here is how a gravity gold concentrator (centrifuge) works as a separator: Make sure the concentrator has been correctly assembled and that all bolts have been tightened. If required, attach a funnel to the material feed inlet. If necessary, connect a hose to the tailings outlet.
GTEK STLB Centrifugal Concentrator can be used not only for placer gold mining, but also for hard rock mining to recover the free gold, replacing amalgamation. Since 1985, several models of Centrifugal Concentator have been developed by GTEK.
This chapter describes units, circuits, and strategies used to recover gold that is either liberated or present in very high-grade gold particles, referred to as gravity-recoverable gold (GRG), as well as gold present in much lower grades in sulfidic particles, typically pyrite and arsenopyrite, that can in their own right be recovered by gravity.
How this Fine Gold Recovery Equipment Works iCON uses enhanced gravity to capture fine heavy minerals including Gold, Silver and Platinum. iCON uses a centrifugal field of up to 150 Gs to concentrate fine heavy minerals that are not recoverable by common artisanal and small scale mining methods.