BACTERIAL EFFECT ON THE PYRITE FLOTATION

被引：0
|
作者：
Mehrabani, Javad V. [1 ]
Noaparast, Mohammad [1 ]
Mousavi, Seyed Mohammad [2 ,3 ]
机构：
[1] Univ Tehran, Sch Min Engn, Coll Engn, Tehran, Iran
[2] Tarbiat Modares Univ, Dept Chem Engn, Biotechnol Grp, Tehran, Iran
[3] Lappeenranta Univ Technol, Dept Chem Technol, Lappeenranta, Finland
来源：
14TH CONFERENCE ON ENVIRONMENT AND MINERAL PROCESSING, PT I | 2010年
关键词：
Acidithiobacillus ferrooxidans; Adaptation; Pyrite; Froth flotation; THIOBACILLUS-FERROOXIDANS; COPPER ORE;
D O I：
暂无
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
In this work, effect of A. ferrooxidans on the flotation of a lead-zinc ore was investigated. A. ferrooxidans were adopted with 50 g/1 original ore and their growth curves were drawn before and after adaptation. The efficiencies of A. ferrooxidans and the chemical depressant of NaCN for the depression of pyrite in the flotation process were compared. The results showed that bacterial growth curve significantly changed after adaptation process. In fact, because of the ore characteristics, addition of original ore to medium culture not only decreased bacterial cell count but also improve their growth. Bioflotation results showed that Pyrite significantly was depressed in the both galena and sphalerite concentrates using A. ferrooxidans in the experiment conditions as well as NaCN.
引用
收藏
页码：281 / 286
页数：6
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