摘要
针对新疆某金矿中金品位为3.10 g/t,金粒度较粗,主要赋存于脉石矿物石英、长石之间和裂隙中,部分靠近黄铁矿的特征,进行了氰化浸出的影响因素试验研究,确定了最优的氰化浸出工艺条件为磨矿细度为-74μm 90.00%,石灰用量2.5 kg/t(调p H值为11~12),氰化钠用量2 kg/t,矿浆浓度为40%,浸出时间为24 h。最终可获得金浸出率96.13%的理想指标。
The factors influencing the cyanide leaching of a gold ore from Xinjiang have been investigated. The ore has a gold grade of 3. 10 g/t,the grain size of gold is coarse and the gold mainly exists in gangue minerals quartz and feldspar. The optimal conditions of the process of cyanidation were determined to be： grinding fineness90. 00%-74 μm,lime dosage 2. 5 kg/t（ adjusted p H 11 - 12）,sodium cyanide 2 kg/t,pulp solid concentration40%,extraction time24 h. A gold leaching rate of 96. 13% was finally achieved.
出处
《矿冶》
CAS
2017年第5期59-61,共3页
Mining And Metallurgy
关键词
自然金
粒状
氰化浸出
回收金
native gold
granular
cyanide leaching
gold recovery
