AN FTIR STUDY ON SELECTIVE SEPARATION OF PYRITE FROM CHALCOPYRITE USING BACTERIA

被引：0
|
作者：
Chandraprabha, M. N. [1 ]
Natarajan, K. A. [2 ]
机构：
[1] MS Ramaiah Inst Technol, Dept Biotechnol, Bangalore 560054, Karnataka, India
[2] Indian Inst Sci, Dept Mat Sci, Bangalore 560012, Karnataka, India
来源：
BIOTECHNOLOGY AND FOOD SERVICE | 2011年 / 7卷
关键词：
Biomodulation; mineral; Acidithiobacillus ferrooxidans; FTIR; SULFIDE MINERALS; ETHYL XANTHATE; PYRRHOTITE; ADSORPTION;
D O I：
暂无
中图分类号：
Q81 [生物工程学（生物技术）]; Q93 [微生物学];
学科分类号：
071005 ; 0836 ; 090102 ; 100705 ;
摘要：
This paper discusses the utility of FTIR spectra in understanding the mechanism of selective separation of chalcopyrite from pyrite after biomodulation using Acidithiobacillus ferrooxidans cells. Consequent to interaction with bacterial cells, pyrite remained depressed even in presence of collector while chalcopyrite exhibited significant flotability. FTIR spectra indicated that the major species formed when pyrite and chalcopyrite were interacted with an aqueous solution of potassium ethyl xanthate was dixanthogen and copper(I)alkyl xanthate respectively. The observed difference in the notability of the two minerals after interaction with the cells and collector is explained based on FTIR studies.
引用
收藏
页码：171 / 175
页数：5
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