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›› 2001, Vol. 1 ›› Issue (4): 0-0.

• 4 •    

氧化亚铁硫杆菌浸出镍黄铁矿机理的初步分析

张广积, 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

Activity Interaction Coefficients in Mn-Fe-C Melts

CHEN Er-bao, DONG Yuan-chi, GUO Shang-xing   

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

摘要: 对生物浸出镍黄铁矿的过程进行了研究,得到以下一些结论:(1) 吸附在矿物表面的细菌对矿物的溶解起着最重要的作用,溶液中游离菌的作用较小,而Fe3+对镍黄铁矿的化学溶解作用较弱;(2) Fe2+主要是被溶液中的游离菌氧化的;(3) 硫的不完全氧化将导致溶液pH的升高.

关键词: 镍黄铁矿, 生物浸出, 氧化亚铁硫杆菌, 吸附菌

Abstract: Bioleaching of Nicopyrite was studied and the following conclusions were drawn from the experiments: (1) The bacteria attached on the surface of the minerals had the most important contribution to the dissolution of Nicopyrite, the free bacteria in the solution had minor contribution; (2) Fe2+ was mainly oxidized by free bacteria in the solution; (3) The incomplete oxidation of S can lead to rising of pH value in solution.

Key words: Mn-Fe-C melt, activity interaction coefficient, thermodynamical properties, linear regression, temperature

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