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›› 2008, Vol. 8 ›› Issue (5): 926-931.

• 过程与工艺 • 上一篇    下一篇

Ultrasonic Electro-oxidation Process of Molybdenite Concentrate

曹占芳 钟宏 闻振乾 符剑刚 陈娜   

  1. 中南大学化学化工学院 中南大学化学化工学院 中南大学化学化工学院 中南大学化学化工学院
  • 收稿日期:2008-06-02 修回日期:2008-06-27 出版日期:2008-10-20 发布日期:2008-10-20
  • 通讯作者: 曹占芳

Ultrasonic Electro-oxidation Process of Molybdenite Concentrate

CAO Zhan-fang ZHONG Hong WEN Zhen-qian FU Jian-gang CHEN Na   

  1. Collage of Chemistry and Chemical Engineering ,Central South University Collage of Chemistry and Chemical Engineering ,Central South University College of Chemistry and Chemical Engineering, Central South University, Changsha Hunan College of Chemistry and Chemical Engineering, Central South University, Changsha Hunan
  • Received:2008-06-02 Revised:2008-06-27 Online:2008-10-20 Published:2008-10-20
  • Contact: CAO Zhan-fang

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摘要： The oxidation of MoS2 concentrate in NaCl solution electrolysis environment and the impact of ultrasonic field on the leaching process of Mo were investigated. The decomposition process of MoS2 can be accelerated by ultrasonic field. When there are iron ions, anode potential is decreased about 0.7 V than that without iron ions, iron ions in the solution play an electronic transmission role by directly joining the electrode reaction of anode and oxidation leaching process. The results indicate that the leaching rate of Mo can achieve 99.5% with ultrasonic field exertion working 4 min in every 5 min under the conditions that the liquid-solid ratio is 20, mixing rate 500 r/min, iron ion concentration 6%, leaching temperature 40℃, pH (initialization) 1, and leaching time 4 h, respectively.

关键词: wet leaching, molybdenite, ultrasonic field, electro-oxidation

Abstract: The oxidation of MoS2 concentrate in NaCl solution electrolysis environment and the impact of ultrasonic field on the leaching process of Mo were investigated. The decomposition process of MoS2 can be accelerated by ultrasonic field. When there are iron ions, anode potential is decreased about 0.7 V than that without iron ions, iron ions in the solution play an electronic transmission role by directly joining the electrode reaction of anode and oxidation leaching process. The results indicate that the leaching rate of Mo can achieve 99.5% with ultrasonic field exertion working 4 min in every 5 min under the conditions that the liquid-solid ratio is 20, mixing rate 500 r/min, iron ion concentration 6%, leaching temperature 40℃, pH (initialization) 1, and leaching time 4 h, respectively.

Key words: wet leaching, molybdenite, ultrasonic field, electro-oxidation

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