Recovering of copper with metallic aluminum

Leaching of Malachite Ore in Ammonium Sulfate Solutions and Production of Copper Oxide

“…Furthermore, different copper compounds can be prepared by means of various methods, such as precipitation, crystallization, and evaporation. Gaining of copper from various synthetic pure solutions or actual leach solutions containing copper ions by the cementation reaction has been studied by using iron, aluminum, and zinc as the reductant metal (Djokic, 1996;Dib and Makhloufi, 2004;Karavasteva, 2005;Demirkıran et al, 2007;Ahmed et al, 2011;Demirkıran and Künkül, 2011;Ekmekyapar et al, 2012b;Demirkıran, 2013b).…”

Deposition of Copper Nanoparticles on 2D Graphene NanoPlatelets via Cementation Process

“…Cementation reactions are extensively used in industry to precipitate valuable metals from waste solutions [8]. This method is advantageous due to its simple elegance and low cost.…”

“…Previous investigations concluded that the thickness, uniformity and adherence of the metal coating was dependent upon the concentrations of metal ion solution, surface activator, reducer type and size. Furthermore, the kinetics of cementation reactions have also been investigated by varying metal salt solution concentration, reducer metal concentration and pH [8,[59][60][61].…”

“…The copper ion is reduced to its ground state due to the difference in electrode potentials between the reducer and the metal in the salt solution. [8].…”

“…From these results, it was determined that ribbon is the most efficient form of Mg. Reason as to why this behavior is observed due to the increased metallic surface area present in Mg ribbon compared to Mg rod, which leads to more effective Cu precipitation. Cementation reactions are first order reactions in which the rate controlling step is the diffusion of the metal ions to the metallic surface of the reducer [8]. Though…”