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›› 2001, Vol. 1 ›› Issue (4): 0-0.

• 4 •    

生物浸出低品位镍铜硫化矿中的镍、铜、钴

陈泉军, 方兆珩   

  1. 中国科学院化工冶金研究所，北京 100080
  • 出版日期:2001-08-20 发布日期:2001-08-20

Boileaching of Ni, Cu and Co from a Low-grade Ni–Cu Sulfide Ore

CHEN Quan-jun, FANG Zhao-heng   

  1. Inst. Chem. Metall., Chinese Academy of Sciences, Beijing 100080, China
  • Online:2001-08-20 Published:2001-08-20

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摘要： 报道了硫杆菌在3种不同方式下浸出低品位镍铜硫化矿的实验结果. 采用通气气搅浸出，在15%矿浆浓度下，浸出20 d后，镍、铜、钴浸出率可分别达到95.4%, 48.6%和82.6%；采用通气搅拌浸出，在25%的矿浆浓度下，浸出14 d后，镍、铜、钴浸出率分别为80.2%, 45.2%和78.4%. 采用柱式渗滤浸出，在液固比为40:1情况下，浸出49 d后，镍、铜、钴浸出率分别为48.5%, 37.5%和33.6%.

关键词: 生物浸出, 氧化亚铁硫杆菌, 氧化硫硫杆菌, 低品位镍铜硫化矿

Abstract: Bioleaching of Ni, Cu and Co from the Jinchuan low-grade Ni–Cu–Co sulfide ore has been investigated with aerated leaching, agitated leaching with air bubbling, and column leaching respectively. The highest recovery was achieved in the aerated leaching. Leaching 20 d with pulp density of 15%, the leached Ni, Cu and Co were 95.4%, 48.6% and 82.6% respectively. By agitated leaching with air bubbling for 14 d at the pulp density of 25%, the leached Ni, Cu and Co were 80.2%, 45.2% and 78.4% respectively. With column leaching for 49 d, the leached Ni, Cu and Co were 48.5%, 37.5% and 33.6% respectively.

Key words: bioleaching, Thiobacillus ferrooxidans, Thiobacillus thiooxidans, low-grade Ni–Cu sulfide ore

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