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Liquid–liquid extraction, also known as solvent extraction and partitioning, is a method to separate compounds or metal complexes, based on their relative solubilities in two different immiscible liquids, usually water (polar) and an organic solvent (non-polar).
Solvent partitioning requires two solvents that are not miscible in each other. Usually one of the solvents is water. The other solvent is a liquid that does not dissolve very well in water, such as diethyl ether (this is the most common type of ether, and it is often called simply "ether").
Different methods are used to extract a metal depending on its position in the reactivity series. The diagram shows a simple reactivity series, including carbon and hydrogen.
iron (III) oxide + carbon monoxide → iron + carbon dioxide. Fe 2 O 3 (s) + 3CO (s) → 2Fe (l) + 3CO 2 (g) Take the place of another substance in a chemical reaction. For example, a metal can ...
The extraction process typically involves reduction, where the positively charged metal ions in an ore gain electrons. This change transforms them into their neutral, pure metallic form. For example: When a zinc ion (Zn 2+) gains two electrons (which is reduction), it forms pure zinc: Zn2+ (aq) + 2e– → Zn (s)
Jul 12, 2023 · Extractive metallurgy is the practice of removing valuable metals from an ore and refining the extracted raw metals into purer form. The field of extractive metallurgy encompasses many specialty sub-disciplines, including mineral processing, hydrometallurgy, pyrometallurgy, and electrometallurgy.
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The method used to extract a given metal from its ore depends upon the reactivity of the metal and how stable the ore is. In each case the metal ions in the compound gain electrons to form...
