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Method of recovering chromite particles from nickel oxide ore and hydrometallurgical equipment of nickel oxide ore in the hydrometallurgy of nickel oxide ore
Method of recovering chromite particles from nickel oxide ore and hydrometallurgical equipment of nickel oxide ore in the hydrometallurgy of nickel oxide ore
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机译:从氧化镍矿石湿法冶金中的氧化镍矿石中回收铬铁矿颗粒的方法和氧化镍矿石的湿法冶金设备
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摘要
Provided is a hydrometallurgical process for nickel oxide ore using high pressure acid leaching to be capable of achieving improvement of durability of production facilities, simplification of the production facilities, suppression of the cost and environmental risks caused by compression of the volume of a tailings dam that stores wastes, and separation and recovery of impurity components which can be utilized as a resource. The hydrometallurgical process for nickel oxide ore of recovering nickel and cobalt using the high pressure acid leaching is characterized by including at least one step selected from step (A) (a step of separating and recovering chromite particles), step (B-1) (a step of neutralizing a leachate with a magnesium-based neutralizing agent), and step (B-2) (a step of neutralizing a leach residue slurry with the magnesium-based neutralizing agent).
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