Gold processing . Britannica
. and then concentrated first by gravity separation to recover coarse particles of . Amalgamation is accomplished by passing a slurry of ore over copper plates.
Supergravity Separation for Cu Recovery and Precious Metal .
Nov 2, 2017 . temperature of 1300 °C, a gravity coefficient of 1000, and a separation time of 5 min, the total recoveries of Cu, Zn, Pb, and Sn over the whole.Get Price