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›› 2003, Vol. 3 ›› Issue (2): 0-0.

• 2 •    

极度嗜热菌Acidianus brierleyi浸出镍铜硫化矿精矿

赵月峰，方兆珩   

  1. 中国科学院过程工程研究所, 北京 100080
  • 出版日期:2003-04-20 发布日期:2003-04-20

Amino Acid Metabolism of Vero Cells in Batch Culture

GAO Hong-liang, CONG Wei, OUYANG Fan   

  1. Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100080, China
  • Online:2003-04-20 Published:2003-04-20

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被引次数

93

摘要： 考察了极度嗜热菌Acidianus brierleyi在摇瓶中浸出金川镍铜硫化矿的工艺条件及添加物对浸出过程的影响. 结果表明, 初始pH 1.2~1.6、细菌接种量10%~20%、低矿浆浓度、细矿石粒度(–48 μm)有利于浸出过程的进行；在68℃、初始pH 1.6、接种量10%、矿浆浓度5%条件下，4.5 d后镍和铜可分别浸出99.78%和86.30%；添加酵母(0.005%~0.02%)及硫酸铁(1~5 g/L)可强化镍和铜的浸出.

关键词: 极度嗜热菌, Acidianus brierleyi, 生物浸出, 镍铜硫化矿精矿, 浸出率

Abstract: Bioleaching of Ni–Cu sulfide concentrate with Acidianus brierleyi was investigated in shake flasks. The results confirmed that the most favorable conditions for Ni and Cu simultaneous dissolution were pH 1.2~1.6, inoculum 10%~20%, lower pulp density and the particle size less than 48 μm. Under the condition of 68oC, initial pH 1.6, inoculum 10%, pulp density 5%, Ni and Cu was leached 99.78% and 86.30% respectively after 4.5 d; the dissolution of Ni and Cu could be enhanced by the addition of 50~200 mg/L yeast extract and 1~5 g/L Fe3+.

Key words: Vero cell, amino acid, metabolism

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