用巨大芽孢杆菌浸出矿石中的金  

Leaching of Gold From Ore Using Bacillus Megaterium

作　　者：李导远 李解[1] LI Daoyuan;LI Jie(Laboratory of Integrated Exploitation of Bayan Obo Multi-Metal Resources,Inner Mongolia University of Science and Technology,Baotou 014000,China)

机构地区：[1]内蒙古科技大学白云鄂博矿多金属资源综合利用重点实验室,内蒙古包头014000

出　　处：《湿法冶金》2021年第3期186-189,共4页Hydrometallurgy of China

基　　金：内蒙古自然科学基金资助项目(2020MS05048);内蒙古自治区重大基础研究开放课题(0406091701)。

摘　　要：研究了用巨大芽孢杆菌(Bacillus megaterium)从金矿石中浸出金,考察了矿石粒度、矿石与细菌培养基用量配比、甘氨酸用量、体系pH对金浸出率的影响。结果表明:在矿石粒度为200~300目、矿石与培养基的配比为2 g/200 mL、甘氨酸用量12 g/L、体系pH=9.5、浸出时间24 d条件下,金浸出率达91.47%,浸出效果较好。The leaching of gold from gold ore using Bacillus megaterium was investigated.The effects of ore particle size,ratio of ore mass-to-bacterial culture volume,glycine amount and pH on leaching of gold were examined.The results show that under the conditions of ore particle size of 200~300 mesh,ratio of ore mass-to-bacterial culture volume of 2 g/200 mL,glycine amount of 12 g/L,system pH of 9.5,and leaching time of 24 d,leaching rate of gold is 91.47%,and leaching effect is good.

关 键 词：微生物冶金 巨大芽孢杆菌 金 浸出 

分 类 号：TF803.21[冶金工程—有色金属冶金] TF831