Nickel industry
The two main processing methods for laterite ores are smelting and High-Pressure Acid Leaching (HPAL). Smelting is used primarily on saprolite ores to obtain an iron-nickel alloy (ferronickel – FeNi, Nickel Pig Iron – NPI) while HPAL is used primarily to process limonite or for higher-purity end products.
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