Novel treatment for mixed copper ores: Leaching ammonia – Precipitation – Flotation (L.A.P.F.)
作者: Víctor ConejerosKevin PérezRicardo I. JeldresJonathan CastilloPía HernándezNorman Toro
作者单位: 1Departamento de Ingeniería Metalúrgica y Minas, Universidad Católica del Norte, Av. Angamos 610, Antofagasta, Chile
2Faculty of Engineering and Architecture, Universidad Arturo Prat, Almirante Juan José Latorre 2901, Antofagasta 1244260, Chile
3Departamento de Ingeniería Química y Procesos de Minerales, Universidad de Antofagasta, Avda. Angamos 601, Antofagasta, Chile
4Departamento de Ingeniería en Metalurgia, Universidad de Atacama, Av. Copayapu 485, Copiapó, Chile
5Department of Mining, Geological and Cartographic Department, Universidad Politécnica de Cartagena, Paseo Alfonso Xlll N◦52, Cartagena, Spain
刊名: Minerals Engineering, 2020, Vol.149
来源数据库: Elsevier Journal
DOI: 10.1016/j.mineng.2020.106242
关键词: Mineral processingCopper dissolutionSulfide recoveryMixed copper ore
英文摘要: Abstract(#br)Mixed copper ores are challenging to process, where the treatments are expensive, resulting in low recoveries, with products that are not commercially viable. The proposed research aims a sustainable method to recover copper from a mixture of oxides and sulfides minerals. The procedure involves three stages: (i) leaching with aqueous ammonia solutions at room temperature and varied pH, ammonia concentration, solid concentration, and particle size; (ii) PLS precipitation in copper sulfides by the addition of sulfur (or other copper sulfates) and SO 2 (or additional sulfites or bisulfites); (iii) froth flotation to recover the value sulfide, considering a set of collectors and frothers. The outcomes obtained in this work were promising, achieving copper extraction of 70% in the...
全文获取路径: Elsevier  (合作)
影响因子:1.207 (2012)

  • ammonia 
  • Flotation 浮选
  • treatment 处理
  • recovery 回收
  • copper 
  • dissolution 溶解
  • mixed 混合的
  • processing 加工