ArticleRSC advances2026
Recovery of metallic iron from the loaded organic phase after solvent extraction by precipitation-stripping with hydrogen gas.
Article in RSC advances, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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2 authors.
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Abstract
Removal of iron from pregnant leach solutions (PLS) is a critical yet challenging step in hydrometallurgical processing prior to the recovery of valuable metals. Conventional iron removal by precipitation of ferric compounds such as goethite or jarosite generates large amounts of solid waste. Solvent extraction (SX) offers an alternative route, enabling subsequent recovery of iron as a marketable product. In this study, an innovative SX-based iron removal process was investigated. Ferric iron was first extracted from aqueous solution into an organic phase containing the carboxylic acid extractant Versatic Acid 10 (VA10). The loaded organic phase (5-16 g Fe per L) was then subjected to direct reduction using hydrogen gas to precipitate iron. The precipitation-stripping rate was enhanced by adding a base (Mg(OH)
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