摘要
广西金牙难处理金矿采用氧化焙烧─氰化工艺使金品位６．１２ｇ／ｔ的矿样浸金率达到８２．９０％。试验条件为：焙烧温度６５０℃，焙烧时间３ｈ，磨矿细度－３２０目占８４．６％，矿浆液固比２：１，氰化钠用量１ｋｇ／ｔ，氧化钙用量４ｋｇ／ｔ，氰化时间１８ｈ，矿浆ｐＨ＝１１～１２。
The properties of Jinya gold ore in Guangxi province was brief-ly described.A experimental results were obtained with a gold cyaniding recovery of 82.90%by using the process including roasting in air and cyanidation leaching of the title ore containing gold 6.12g/t.The follow-ing conditions proved to be optimum for the treatment of rude ore:roasting temperature 650℃,roasting time 3 hours,milling size-0.050mm 84.6%,ratio of water to ore in the leaching stage 2:1,NaCN 1kg/t,CaO 4 kg/t,cyaniding time 18 hours,and pH = 11～12 in the cyanidation leaching.
出处
《贵金属》
CAS
CSCD
北大核心
1995年第2期47-50,共4页
Precious Metals
关键词
氰化
氧化焙烧
金矿物
Gold,Cyanidation, Oxidizing roasting
