Journal of Northeastern University ›› 2013, Vol. 34 ›› Issue (6): 884-887.DOI: -

• Resources & Civil Engineering • Previous Articles     Next Articles

Effects of Small Molecule Organic Depressants on the Flotation Behavior of Chalcopyrite and Galena

PIAO Zhengjie1, WEI Dezhou1, LIU Zhilin1,2   

  1. 1. School of Resources & Civil Engineering, Northeastern University, Shenyang 110819, China; 2. Engineering Institute, Jiangxi University of Science and Technology, Ganzhou 341000, China.
  • Received:2012-11-30 Revised:2012-11-30 Online:2013-06-15 Published:2013-12-31
  • Contact: WEI Dezhou
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Abstract: The effects of the new depressant O, Obis(2, 3dihydroxypropyl) dithiophosphate(DHDTP) on the flotability of the chalcopyrite and galena in the floatation system with diethyldithiocarbamate as a collector were investigated. The interaction mechanism between DHDTP and the minerals was also explored through zeta potential and infrared spectrum analysis. Flotation test results showed that in the range of pH=4~10, the DHDTP had slightly inhabition effect on the chalcopyrite while strong inhibition effect on the galena. With the increase of DHDTP content, the recovery rate of the galena decreased rapidly while that of the chalcopyrite decreased slightly, which was due to the adsorption capacity of DHDTP on the galena was much stronger than that on the chalcopyrite.

Key words: O, Obis(2, 3dihydroxypropyl) dithiophosphate, flotation behavior, chalcopyrite, galena, depressant

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