화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Journal of Industrial and Engineering Chemistry, Vol.92, 210-217, December, 2020
DOI10.1016/j.jiec.2020.09.007  Export Citation
Separation of chalcopyrite from galena with 3-amyl-4-amino-1, 2, 4-triazole-5-thione collector: Flotation behavior and mechanism
Zhiyong Zhang1, 2, Yiming Wang1, Guangyi Liu1, †, Sheng Liu1, †, Jun Liu1, and Xianglin Yang1
  • 1College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China
  • 2Changsha Research Institute of Mining and Metallurgy Co., Ltd, Changsha 410012, China
E-mail:,
3-Amyl-4-amino-1,2,4-triazole-5-thione (AATT) reacted with Cu2+ or Pb2+ ions in aqueous solutions to form CuAATT and Pb(AATT)2 complexes and their solubility product constants were measured as 10-16.17 and 10-20.60, respectively. In the moderately-alkaline media, both chalcopyrite and galena chemisorbed AATT on to their surfaces, and the adsorption amount of AATT on chalcopyrite was bigger than that on galena, which rendered a stronger hydrophobization toward chalcopyrite. While under the high alkaline pulp, AATT only chemisorbed on chalcopyrite, not on galena. The micro-flotation findings indicated that AATT was a favorable collector for flotation enrichment of chalcopyrite and galena at pH <11.0, and realized an efficient flotation separation of chalcopyrite from galena under pH>11.5. The CuAATTcomplex was more insoluble than Pb(AATT)2, which implied a stronger affinity of AATT toward chalcopyrite than galena and returned their selective flotation separation at the high-alkaline condition.
Keywords:Chalcopyrite;Galena;3-amyl-4-amino-1;2;4-triazole-5-thione;Flotation
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