Abstract 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 11.5. The CuAATT complex 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.

中文翻译：

---

3-amyl-4-amino-1, 2, 4-triazole-5-thione捕收剂从方铅矿中分离黄铜矿：浮选行为和机理

摘要 3-Amyl-4-amino-1,2,4-triazole-5-thione (AATT) 与水溶液中的 Cu2+ 或 Pb2+ 离子反应形成 CuAATT 和 Pb(AATT)2 络合物，并测量它们的溶度积常数为分别为 10-16.17 和 10-20.60。在中碱性介质中，黄铜矿和方铅矿均在其表面化学吸附AATT，且AATT在黄铜矿上的吸附量大于方铅矿，对黄铜矿的疏水化作用更强。而在高碱性矿浆下，AATT 仅化学吸附在黄铜矿上，而不吸附在方铅矿上。微浮选结果表明，AATT 是 pH 11.5 的黄铜矿和方铅矿浮选富集的有利捕收剂。CuAATT 复合物比 Pb(AATT)2 更难溶，