Comprehensive Recovery Experiments on the Valuable Mineral from Low Grade Gold Ore in Gansu Province
Received date: 2013-08-27
Revised date: 2013-10-14
Online published: 2014-06-25
In order to improve the mineral recovery rate of a gold mine in Gansu Province，two technology schemes were applied to processing ores which include the flotation-concentrate cyaniding and the all slime cyaniding.By comparing the overall metallurgical recoveries of them，the technology schemes of flotation and concentrate was ultimately determined，which have been considered from the aspects of technical and economic.The tests show that under the premise of ensuring the total flotation time in 20 minutes，the slurry concentration of 33% and the grinding fineness -200 above 55% were set at the production site.The pharmacy conditions also was butyl xanthate 100 g/t and butyl aerofloat 80 g/t.And the concentrate cyaniding conditions should be kept at the mesh fineness -400 above 90%，the cyanide concentration of 65‰，the cyanide leaching time of 36 hours，and the slurry concentration of 30% to 35%.Finally，it can obtain good indicators of the cyanide overall recovery of 95.43%.
ZHANG Zhilei , LI Yong , YANG Yongwen . Comprehensive Recovery Experiments on the Valuable Mineral from Low Grade Gold Ore in Gansu Province[J]. Gold Science and Technology, 2014 , 22(1) : 87 -91 . DOI: 10.3969/j.issn.1005-2518.2014.01.087
［1］ 牛桂强.某金矿矿石选矿工艺试验研究［J］.中国矿山工程，2008，37（5）：28-31.
［2］ 黄怀国，张卿，林鸿汉.难选冶金矿提取工艺工业应用现状［J］.黄金科学技术，2013，21（1）：71-77.
［3］ 何烨，拜鹏程，黄冠银，等.酸浸提高金氰化浸出率的试验研究［J］.黄金科学技术，2012，20（6）：58-61.
［4］ 林树宾，张广彬，梁永生，等.某低品位金矿石选矿试验研究［J］ .现代矿业，2010，26（4）：51-53.
［5］ 冯肇伍，姚香.金矿石磨矿细度试验与生产实践［J］.矿业研究与开发，2002，22（3）：32-34.
［6］ 周为民.提高浮选回收率的生产实践［J］.有色金属（选矿部分），2006，（6）：22-25.
［7］ 黄万抚，李新冬.提高金浮选回收率的研究［J］.有色金属（选矿部分），2004，（1）：21-23.
［8］ 马科友，王洪凯，吕久吉.提高金银浮选回收率的试验研究［J］.有色矿冶，2010，26（2）：16-18.
［9］ 徐天允，徐正春.金的氰化与冶炼［R］.沈阳：沈阳黄金学院，1985.
［10］ 孙戬.金银冶金［M］.北京：冶金工业出版社，1998.
/
| 〈 |
|
〉 |