200371 · Conventional pyrometallurgical processing of nickel laterite ores involves an initial calcination step using fossil fuels, followed by smelting the calcine to generate slag and a low-grade matte ...
view more20231229 · Approximately 80% of the hydrometallurgical process of low-grade laterite nickel ore is converted into residue. The handling of residues from processing is a significant challenge in this process According to the characterization test, each type of extraction process produces a different type of residue.
view more20161129 · The mineralogical & chemical composition of laterite depends on their parent rock. The term ‘laterite’ was originally used for highly ferruginous deposits first observed in Malabar Region of coastal Kerala and Dakshina Kannada & other parts of Karnataka. It is a highly weathered material, rich in secondary oxides of iron, aluminium …
view more2024326 · The sulfation roasting leaching process has been investigated as an alternative method for recovering nickel and cobalt from laterite ore. This process involves converting the nickel and cobalt in the ore into sulfates, which can then be dissolved through water leaching, while the iron remains as an insoluble oxide. However, the presence of …
view more201581 · Dewatering of any wet process product is essential prior to any subsequent processing (e.g. agglomeration ahead of heap leaching, atmospheric leaching or High Pressure Acid Leaching (HPAL)) for the recovery of …
view more2016229 · Nickel laterite ore is classified into two principal ore types: saprolite (silicate ore) and limonite (oxide ore). Saprolite-type ore characterized by high magnesia and silica contents is treated by pyrometallurgy process. On the other hand, limonite-type ore is subjected to hydrometallurgy process to produce nickel products. Hydrometallurgy …
view more2022822 · The present article reviews the insight into the available hydrometallurgical approaches for treating laterite ores and the separation of nickel and cobalt from hydrometallurgy routes. Caron process, a combination of pyrometallurgy and hydrometallurgy, is also well described in the review.
view more20221216 · The Piauí laterite (NE Brazil) was initially evaluated for Ni but also contains economic concentrations of Co. Our investigations aimed to characterise the Co enrichment within the deposit; by understanding the mineralogy we can better design mineral processing to target Co recovery.
view more2024426 · Both hydrometallurgical and pyrometallurgical approaches are used to process nickel laterite ores, with the best approach depending on the ore composition.
view more2022822 · Sulfide nickel ore, due to a long-term excavation, has seen a constant decline in production in China (Murofushi et al., 2022), and more than 60% of nickel ore is laterite nickel ore (Pandey et al ...
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