Carpco of the US provided and commissioned 400 Humphreys MC7000 spirals and two stages of Wilfley tables
to the Round Mountain gold operation in Nevada, US, to recover free gold and gold associated with pyrite.
The Wilfley Table
, an important component of the laboratory, was purchased directly from the manufacturer in London, England and is in transit to the project site.
, heavy liquid, and magnetic separation are employed with microscopic analysis, followed-up by microprobe chemistry.
Also the Wilfley tables
were replaced by Holman tables.
Sluice box concentrates of black sand and gold are refined using Knelson Concentrators and Wilfley Tables
to produce a pure 900+ fine (22 carat) gold concentrate for sale to the Central Bank of Suriname.
Further cleaning of the concentrate is achieved with Wilfley tables