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