leach copper from a sulphide ore. The plant flowsheet hasplicated by various phases of expansion, but essentially involves oxygen pressure leaching of the ore in SX raffinate. Pressure leaching is followed by a train of atmospheric leach tanks where ferric ion is consumed and leaches a few additional percent of copper.

Later copper mining involved leaching of copper oxides followed by cementation with iron. Cementacion is Spanish for precipitation, which better describes the process, and the use of the term cementation derives from the process being first carried out on an industrial scale in the copper mines in the Rio Tinto region of Spain in the mid 18 th

Abstract The concentrations of ferrous iron in ore column effluents and the pH of the effluents during the leaching of a copper sulfide ore were followed as an indication of the activity of the microbial populations that were established in the ore columns. The impact of this activity and the release of copper were influenced by addition of ferric iron to the irrigation solution, by

Sep 07, 2012· Leaching of an oxidized copper ore containing malachite, as a new approach, was investigated byanic reagent, citric acid. Sulfuric acid is themon reagent in the leaching of oxide copper ores, but it has several side effects such as severe adverse impact on the environment. In this investigation, the effects of particle size, acid concentration,