Received date: 2014-06-17
Revised date: 2014-08-10
Online published: 2015-01-22
Traditional gold extraction is an intermittent process，that has such problems as long operation time，large organic phase-loss and so on.As a new type of high efficient extraction equipment，the centrifugal extractor has the advantages of high efficiency，continuous operation and high operating elasticity，so it is widely used in liquid-liquid extraction.The application of centrifugal extractor in gold extraction was studied.The results show that the max rotation speed is 3 000 r/min under the premise that DBC is not emulsify.With rotation speed increasing，the extractability increases obviously first and then the increase rate slows down gradually，but the decrease of the phase ratio delays this tendency.With the decreasing of phase ratio，the extractability decreases gradually，the decrease rate becomes more significant，and this tendency is also enhanced by the increasing of rotation speed.With the increasing of extraction stages，the extractability increases rapidly，but the growing rate decreases，and finally reaches a steady state.Four stages of counter-current extraction was carried out in centrifugal extractor.Under the conditions of 2 000 r/min rotation speed，O/A=1∶3，the extractability could be arrived at 98%.
CHEN Dalin , ZHANG Fazhi , XIE Zhenshan , PAN Congming , LI Ming , GUO Xiaohui . Application of Centrifugal Extractor in Gold Extraction[J]. Gold Science and Technology, 2014 , 22(5) : 96 -99 . DOI: 10.11872/j.issn.1005-2518.2014.05.096
［1］ 宾万达，卢宜源.贵金属冶金学［M］.长沙：中南大学出版社，2011.
［2］ 余建民.贵金属分离与精炼工艺学［M］.北京：化学工业出版社，2006.
［3］ 陈聪.萃取法精炼黄金技术在矿山生产中的应用［J］.黄金科学技术，2004，12（3）：1-3.
［4］ 余建民.贵金属萃取化学［M］.第二版.北京：化学工业出版社，2010.
［5］ 杨义晨，顾卫星，黄晨，等.二丁基卡必醇萃取废线路板中金的性能研究［J］.环境科学与技术，2010，33（增）：49-51.
［6］ 刘漠禧，张树峰，孙树森.二丁基卡必醇萃取法提金的工业实践［J］.矿业工程，1995，15（2）：37-40.
［7］ 张钦发.从铜阳极泥分金钯后的铂精矿中提取分离铂钯金新工艺及萃取机理研究［D］.长沙：中南大学，2007.
［8］ 楼芳彪，庄尚瑞.二异辛基硫醚萃淋树脂分离富集金［J］.湿法冶金，1989，（2）：31-35.
［9］ 潘路，古国榜，李耀威.合成亚砜MSO从碱性氰化液中萃取金的研究［J］.贵金属，2004，25（3）：6-10.
［10］ 李传博，张宇，晏太红.Φ20 mm离心萃取器的水力学性能［J］.核化学与放射化学，2011，33（6）：349-352.
［11］ 赵百仁，周秀珠，周嘉贞，等.环隙式离心萃取器界面半径的测定与关联［J］.化学工程，1997，25（2）：21-26.
［12］ 王胜，郭鹏成，赵燕春.离心萃取器在镍钴分离中的应用［J］.湿法冶金，2008，27（1）：45-47.
［13］ 段五华，周秀珠，周嘉贞.环隙式离心萃取器在稀土湿法冶金中的应用［J］.中国稀土学报，2005，23：141-145.
/
| 〈 |
|
〉 |
甘公网安备 62010202000672号