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›› 2005, Vol. 5 ›› Issue (4): 389-393.

• 反应与分离 • 上一篇    下一篇

超声强化电氧化法湿法分解辉钼矿

符剑刚,钟宏,彭斌   

  1. 中南大学化学化工学院
  • 出版日期:2005-08-20 发布日期:2005-08-20

Ultrasonic Intensified Hydrometallurgical Process of Electro-oxidation for Molybdenum Concentrate

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  1. College of Chemistry and Chemical Engineering, Central South University, Changsha Hunan
  • Online:2005-08-20 Published:2005-08-20

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摘要： 针对电氧化法湿法分解辉钼精矿电流效率不高、能耗较大的缺点，引入超声波强化浸出过程. 超声场可显著减少电极表面的覆盖物，提高电解电流，促进MoS2分解. 电解时超声波作用方式为每隔15 min发射3 min，在电解电压3.5 V、矿浆液固比10、阳极电流密度700 A/m2、矿浆初始pH 10、电极间距13 mm的条件下，电解电流效率大于100%.

关键词: 超声强化, 辉钼矿, 湿法, 电氧化法

Abstract: In order to promote current efficiency and decrease energy consumption in electro-oxidation process for molybdenite concentrate, ultrasonic wave was introduced to intensify the leaching process. Under the ultrasonic field leaching conditions can be ameliorated, surface superstralum of electrodes can be sharply reduced, and electrolytic current be increased remarkably. The results indicate suitable leaching conditions as follows: ultrasonification is eradiated 3 min per 15 min, cell potential is about 3.5 V, ratio of ore pulp liquid to solid (L/S) 10, anode current density 700 A/m2, original pH of pulp value 10, electrode spacing 13 mm. Under these conditions the current efficiency is above 100%.

Key words: ultrasonification, molybdenite, hydrometallurgy, electro-oxidation