Search results
Results from the WOW.Com Content Network
Metal recovery is the final step in a hydrometallurgical process, in which metals suitable for sale as raw materials are produced. Sometimes, however, further refining is needed to produce ultra-high purity metals. The main types of metal recovery processes are electrolysis, gaseous reduction, and precipitation.
Solvent extraction and electrowinning (SX/EW) is a two-stage hydrometallurgical process that first extracts and upgrades copper ions from low-grade leach solutions into a solvent containing a chemical that selectively reacts with and binds the copper in the solvent.
Hydro: Term referring to the usage of water; [3] process occurs in aqueous environments Metallurgy: A process involving the separating and refining of metals from other substances; [ 4 ] Bioleaching: Using biological agents (bacteria) to extract metals or soils; [ 5 ] general term used to encompass all forms biotechnological forms of extraction ...
Gold cyanidation (also known as the cyanide process or the MacArthur–Forrest process) is a hydrometallurgical technique for extracting gold from low-grade ore through conversion to a water-soluble coordination complex. It is the most commonly used leaching process for gold extraction. [1]
This page was last edited on 6 November 2024, at 02:07 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may apply.
The hydrometallurgical process in the plant will pressure-leach the nickel ore concentrate in acidic solutions to separate iron, sulfur and other impurities from nickel, copper and cobalt. [5] On June 11, 2018, Premier Dwight Ball announced Vale is moving forward with its underground mine at Voisey's Bay.
Nickel-cobalt lateritic ores can be treated by either hydrometallurgical processes or pyrometallurgical processes, such as matte or ferronickel smelting, which require the entire ore to be melted and the metal values to be separated from the residual components of the ore. The hydrometallurgical process for laterite ore can use sulfuric acid or ...
The possibility of using microorganisms in biomining applications was realized after the 1951 paper by Kenneth Temple and Arthur Colmer. [9] In the paper the authors presented evidence that the bacteria Acidithiobacillus ferrooxidans (basonym Thiobacillus ferrooxidans) is an iron oxidizer that thrive in iron, copper and magnesium-rich environments. [9]