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Beneficiation of high grade copper ore through mineral-microbe interaction

机译：通过矿物-微生物相互作用选矿高品位铜矿

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摘要

This work was based on surface chemical properties of bacteria during adaptation to high grade copper minerals and the projected consequences in bioflotation process. The utility of bio-processing in the beneficiation of copper ore through bio-flotation is demonstrated. An autotroph bacteria Acidithiobacillus ferrooxidans was adapted to high grade mixed copper ore sample by repeated subcultures. The surface characteristics were studied at different pH values and time intervals. From the studies it was established that the mineral-adapted cells became more hydrophobic as compared to unadapted cells during bio-flotation. It was also noticed that there were no significant changes in the surface charge of bacteria before and after adaptation.
机译：这项工作基于细菌在适应高品位铜矿物质过程中的表面化学特性以及在生物浮选过程中的预期结果。证明了通过生物浮选在铜矿选矿中进行生物处理的实用性。通过重复的继代培养，将自养细菌酸性氧化亚铁硫杆菌（Aldithiobacillus ferrooxidans）适应于高品位混合铜矿石样品。研究了在不同pH值和时间间隔下的表面特性。根据研究，在生物浮选过程中，与未适应细胞相比，适应矿物的细胞变得更疏水。还注意到适应前后，细菌的表面电荷没有显着变化。

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