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High Pressure Acid Leaching of Nickel Laterite Ores: Chemistry and MOC Challenges

Presentation Outline. Overview of laterite ores processingBrief overview of HPAL chemistryFew examples of MOC challenges. Background. Ni sources: sulfide and oxide oresNi oxide (laterite) ores found mainly in tropical and subtropical regions (70% of Ni)Depleting Ni sulfide oresFour HPAL plants

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High Pressure Acid Leaching of Nickel Laterite Ores: Chemistry and MOC Challenges

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    1. High Pressure Acid Leaching of Nickel Laterite Ores: Chemistry and MOC Challenges Mohamed Buarzaiga IAPWS Workshop May 12, 2009

    2. Presentation Outline Overview of laterite ores processing Brief overview of HPAL chemistry Few examples of MOC challenges

    3. Background Ni sources: sulfide and oxide ores Ni oxide (laterite) ores found mainly in tropical and subtropical regions (70% of Ni) Depleting Ni sulfide ores Four HPAL plants were built in the last 15 years and others are under construction Vale Inco is building a large plant in New Caledonia (Goro)

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