NEW METHOD OF EXTRACTING GOLD AND SILVER FROM HIGH SILVER-GOLD CONCENTRATES
(1.Department of Nonferrous Metallurgy; Northeastern University; Shenyang 110006;
2.Hebei Metallurgy Industry School; Shijiazhuang 050091)
2.Hebei Metallurgy Industry School; Shijiazhuang 050091)
Abstract: Laboratory tests have been carried out to develop the new method of extracting silver by chloride leach and gold by sulphur-ammonia leach. Results showed that by the method recovery efficiency of gold and silver from the concentrate was more than 95%.
Key words: extraction of gold and silver; chloride leach; sulphur-ammonia leach; cementation