Howerer,Amalgamating ore tailing is first treated chemically,the crystal stucture of carrier ore is danaged,and the fing scattered gold becones exposed,so the leaching efficiency can reach up to 83.

8% respectivey, The methylmercury levels of human hair for mercury mine workers, children and pregnam women living near the mine area have been compared with that of those living at nonpol luted .

A combined separation process of amalgamation with cyanidc leaching in tank is applied to the gold deposits in North Guilin with a flow chart of raw material - crushing- amalgamation-leaching-replacement-smelting, which improved gold recovery and received an ideal benefit.

In this article amalgamation flotation combined flowsheet and adaptable technology additions was adopted basing on the full demonstration and experimental study,in addition of head grade:Au 7.