Tests on Column Leaching with Chemical Aids for Extracting Gold fron Iron-Cap Type Ore

Effects of chemicals on gold extraction with column leaching from oxidized ores of an iron-cap type deposit are investigated.An increased gold leach rate of 5 97% can be attained from ore sample minus 30 mm with the K-104 aid.An increment of 10 77% can be obtained from ore sample minus 10 mm by means of leaching with K-104 and then leaching with the L-88 aid.