细菌浸出高硫铝土矿中杂质硫的研究  

Study of bioleaching sulfur from bauxite with high sulfur using acidithiobacillus ferrooxidans bacterias

作　　者：郝跃鹏[1] 李花霞[2] 

机构地区：[1]中国铝业股份有限公司河南分公司,河南郑州450041 [2]中国铝业股份有限公司郑州研究院,河南郑州450041

出　　处：《轻金属》2014年第10期11-15,共5页Light Metals

摘　　要：本研究从某高硫煤矿以及硫磺矿山处筛选得到5株具有氧化亚铁离子能力的富集菌株。编号为ZL—Sl的氧化亚铁嗜酸硫杆菌Acidithiobacillus ferrooxidans浸出高硫铝土矿中杂质硫的能力最强。该菌株对高硫铝土矿摇瓶浸矿脱硫后，矿石中的硫含从3．83％降低到0．53％～0．69％，脱硫率达到85％以上，A1203回收率达到97％以上。脱硫过程在常温常压下进行，脱硫后铝土矿物化性质无任何变化。In this study,5 strains of acidithiobacillus ferrooxidans were obtained from the high sulfur coal mine and the sulfur mine. Acidithiobacillus ferrooxidans ZL - S1 had a stronger ability of leaching the sulfur from bauxite. The content of sulfur of bauxite were decreased from 3.83% to 0.53% ~ 0.69% after shake flask bioleaching, and the desulfurization efficiency reached above 85%, the recovery rate of A1203 were attained more than 97%. All of the study were carried out under normal temperature and pressure, and the physicochemical properties of bauxite hadnt changed.

关 键 词：氧化铝亚铁矿杆菌 铝土矿 细菌浸出 

分 类 号：TF18[冶金工程—冶金物理化学] TF803.25