Journal of Northeastern University(Natural Science)

Journal of Northeastern University Natural Science ›› 2020, Vol. 41 ›› Issue (7): 1008-1014.DOI: 10.12068/j.issn.1005-3026.2020.07.015

• Resources & Civil Engineering • Previous Articles     Next Articles

Effect of Sodium Ethylenediamine Phosphate on Sulfurized Flotation of Cuprite and Its Mechanism

MA Ying-qiang1,2,3， ZHENG Shuang-lin1， SHENG Qiu-yue4， YAO Jin4   

  1. 1. School of Zijin Mining， Fuzhou University， Fuzhou 350108， China； 2. State Key Laboratory of Mineral Processing， Beijing 102628， China； 3. State Key Laboratory of Comprehensive Utilization of Low-Grade Refractory Gold Ores， Shanghang 364200， China； 4. School of Resources & Civil Engineering， Northeastern University， Shenyang 110819， China.
  • Received:2019-11-20 Revised:2019-11-20 Online:2020-07-15 Published:2020-07-15
  • Contact: MA Ying-qiang
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Abstract: The effect of sodium ethylenediamine phosphate on sulfide flotation of cuprite was investigated by single mineral flotation tests. The influence mechanism of sodium ethylenediamine phosphate for sulfide flotation of cuprite was studied by means of X-ray photoelectron spectroscopy， Zeta potential， adsorption energy of reagents on mineral surface and adsorption capacity of collector. The results showed that the sodium ethylenediamine phosphate can increase the content of copper and sulfur elements on the surface of the sulphide cuprite mineral， increase the negative value of the adsorption energy of HS- on the surface of the mineral， and make the sulphide reaction easier occur， thus improving the sulphide effect on the surface of the mineral， increasing the adsorption capacity of the mineral surface collector， and improving the recovery rate of sulphide flotation.

Key words: cuprite, sulfurized flotation, sodium ethylenediamine phosphate, flotation mechanism, surface adsorption

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