Placer Gold Recovery Research Paper
Link to some great research on placer gold recovery by Randy Clarkson P.Eng.Read the entire paper here.
"The highest percentage of gold recoveries occurred at mines which screened their feed to minus one inch, used both expanded metal and angle iron riffles on top of Nomad matting for every sluice run and fed their runs at recommended feed and water rates." -- Clarkson, 1990, Page 9
"The sluice box has been used for the recovery of placer gold since ancient Greece..." "Sluices are also very reliable, inexpensive and simple to operate" -- Clarkson, 1990, Page 15
"pay gravels are screened before sluicing, gold recovery is improved dramatically, barren gravels are eliminated from the feed, and riffle wear is reduced" -- Clarkson, 1990, Page 6
"Unbacked Nomad matting appears to be the best..." -- Clarkson, 1990, Page 20
Reference:
Clarkson, Randy P.Eng, 1990, Placer Gold Recovery Research
Final Summary, Prepared for the Klondike Placer Miner Association, New ERA Engineering Corporation.
http://www.geology.gov.yk.ca/publications/tech/placerrecovery.pdf
Final Summary, Prepared for the Klondike Placer Miner Association, New ERA Engineering Corporation.
http://www.geology.gov.yk.ca/publications/tech/placerrecovery.pdf
