摘要
随着大量易选硫化锌矿资源的不断消耗,细粒难选低品位氧化锌矿逐渐成为重要原料。本文针对云南兰坪大量低品位氧化锌矿石,其含锌6.52%,锌的氧化率94.62%,采用硫化-胺法浮选工艺流程,研究了磨矿细度、药剂种类、药剂用量等因素对锌浮选过程的影响。在磨矿细度为-0.074mm 90%时采用一次粗选两次扫选三次精选的闭路流程,获得锌精矿产率9.70%,Zn品位44.09%,Zn回收率66.35%较好指标。本研究对我国低品位氧化锌矿资源的开发利用具有重要借鉴意义。
With the continuous depletion of a large number of easy-treatment zinc sulfide ore, the fine disseminated and refractory low-grade zinc oxide ore has become an important source for the production. In this paper, a sulfurization- amine flotation process was studied for large amounts of low-grade zinc oxide ore in Lanping area, Yunnan Province, China and the influencing factors have been studied, such as grinding fineness, reagent types and dosage, etc. Under the grinding fineness of-0.074 mm (90%), a closed-circuit test with one stage roughing flotation, two stage scavenging, and three stage concentration flotation was carried out. The experiment results indicate that for the run-of-mine ore with a zinc grade of 6.52% and the oxidation ratio of 94.62%, zinc concentration can be obtained with zinc grade of 44.09% at a zinc recovery of 66.35 % and 9.70% for fine zinc concentration yield.
作者
张鹏飞
谢海云
丁超
刘榕鑫
高利坤
童雄
ZHANG Peng-fei XIE Hai-yun DING Chao LIU Rong-xin GAO Li-kun TONG Xiong(Faculty of Land Resource Engineering, Kunming University of Science and Technology, Kunming 650093, China State Key Laboratory of Complex Nonferrous Metal Resource Clean Utilization, Kunming 650093, China)
出处
《矿物学报》
CSCD
北大核心
2017年第4期456-460,共5页
Acta Mineralogica Sinica
基金
国家自然科学基金项目(批准号:51464030)
昆明理工大学分析测试基金(20150306
2016M2014201020)
关键词
低品位氧化锌矿
浮选
硫化-胺法
选矿试验
low-grade oxidized zinc ore: flotation: sulfurization-amine
beneficiation test