2020121 · In this study, the effect of geopolymerization on the particle size, compressive strength, acid resistance, and microstructure of fine-sized copper ore-based agglomerates formed by drum agglomeration was examined. In addition, the performances of the feed, agglomerates, and coarse-grained ore in the column leaching process were …
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 more2021623 · Our solution for leaching, solvent extraction and electrowinning Metso Outotec ofers optimised solutions and complete plants for the production of high-quality copper cathodes through innovative leaching, solvent …
view more2022512 · In conventional mining, leaching involves applying acid to piles of rock in order to extract copper, gold or other metals. The remaining rock is stored on site in waste piles.
view more202431 · The process flowsheet for enhancing the leaching rate of copper from refractory copper oxide ore using CaF 2 is shown in Fig. 1. Initially, the raw ore was crushed and ground to a particle size of − 0.074 mm, accounting for 70wt% of the total material.
view more2022225 · Mineral leaching is the key unit operation in metallurgical processes and corresponds to the dissolution of metals. The study of leaching is carried out in many areas, such as geology, agriculture and metallurgy. This paper provides an introduction to the theoretical background regarding the mathematical modelling of the leaching process of ...
view more2020618 · Thus, the sulfation roasting‒water leaching process developing an efficient and eco-friendly pathway to simultaneous extraction of Ni, Cu, and Co valuable metals from low grade sulfide ores.
view more2020624 · The oxidation of sulfide-based ores is industrially relevant as it facilitates the extraction of valuable metals and eliminates undesired elements from an ore. Even though oxidation can be done thermally (pyrometallurgy), solution-based (hydrometallurgical) methods are currently sought as they represent a more sustainable …
view more202091 · The influence of irrigation rate, leaching solution concentration, bacterial population and ore bed dimensions on copper recovery and bioreactor requirements was assessed for these two process schemes. Some economic aspects of …
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