作　　者： ; ; ; ; ; ; (肖文丁）;

机构地区： 西南科技大学环境与资源学院固体废物处理与资源化教育部重点实验室

出　　处： 《矿物学报》 2011年第2期280-283,共4页

摘　　要： 我国磷矿资源丰富,但是磷矿石的平均品位较低,面对传统选矿工艺的诸多问题,本文采用生物浸矿方法,研究了嗜酸氧化硫硫杆菌对中低品位磷矿的浸磷效果。研究结果表明:嗜酸氧化硫硫杆菌对磷的浸出率随磷矿粉量的增加而降低;磷矿粉浓度为2 g/L时,磷的浸出率可达95%以上;磷矿粉浓度为15 g/L时,浸出45d,磷的浸出量最大,为179.56 mg;在溶磷过程中,溶液的pH逐渐降低,最后稳定在2.0左右,pH最大降幅达4.45。嗜酸氧化硫硫杆菌对中低品位磷矿中磷的浸出有很好的效果。 Phosphate resources are abundant in China,but with low average grade.There are many problems in traditional processing technology in mineral mining.In this paper,by using biologic leaching method,acidithilbacillus thiooxidans＇ effect to low-grade phosphate ore leaching was studied.According the result we drew a conclusion that the higher quantity of mineral,the lower solubility of phosphate.When the concentration of mineral reaches 2 g/L,the solubility of phosphate would be close to 100%.While the concentration of mineral reached 15 g/L,the dissolution of phosphate will get the maximum,179.56 mg.Solution,s pH drops gradually,and will steady at about 2.0 finally,with increasing concentration of mineral.Acidithilbacillus thiooxidans have very good leaching effect to low-grade Phosphate ore.

关 键 词： 嗜酸氧化硫硫杆菌 磷矿 浸出

领　　域： [天文地球] [天文地球] [冶金工程]