2017823 · In the domestic mining of million of tons of copper ore, nearly 3X more million tons of waste were moved and discarded. This waste contained copper at a grade too low to permit profitable copper extraction using modern milling techniques. Some of the waste is leached with acidic solutions that percolate through the dump and dissolve a …
view more202369 · Copper deposits currently involved in hydrometallurgical processing tend to have high amounts of impurities, which complicate the sulfuric acid leaching process. In the 1970–90s, it was suggested that different additives be used to intensify the sulfide copper ore leaching process with acid solutions, such as sulfuric and nitric iron (III) and …
view more2012101 · A comprehensive model for copper sulphide heap leaching: Part 1 Basic formulation and validation through column test simulation October 2012 Hydrometallurgy s 127–128:150–161
view more202191 · In copper dump leaching, run-of-mine ore is irrigated with acidic leaching solution to generate aqueous cupric ions for further processing. The very l…
view more2002111 · Download Citation | Copper recovery using leach/solvent extraction/electrowinning technology: Forty years of innovation, 2.2 million tonnes of copper annually | The concept of selectively ...
view more199771 · Bioleaching is a simple and effective technology for metal extraction from low-grade ores and mineral concentrates. Metal recovery from sulfide minerals is based on the activity of chemolithotrophic bacteria, mainly Thiobacillus ferrooxidans and T. thiooxidans, which convert insoluble metal sulfides into soluble metal sulfates. Non-sulfide …
view more201441 · The tests were conducted using a pulverised ore sample to increase dissolution reaction kinetics, particularly for chalcopyrite. Future tests should be conducted using ore particle sizes appropriate to heap leaching. The copper distribution within particles indicated that the test ore may not be suited to heap leaching because the surface …
view more201591 · Abstract and Figures Heap leaching technology is finding increasingly widespread application to recover values from low-grade ores, especially in the gold and copper industry. The particular ...
view moreBased on over 30 years' experiences in design, production and service of crushing and s
GET QUOTE