Device and method for recovering nickel and cobalt and co-producing magnesium oxide.

The researchers provide a device and method for recovering nickel, cobalt and magnesium oxide from nickel, cobalt and magnesium waste streams, said device comprising a nickel and cobalt separation and recovery system, a magnesium chemical separation and recovery system, an atmosphere roaster and a crusher connected in sequence. Said method includes:

Firstly, separating and recovering nickel and cobalt from nickel-cobalt-magnesium waste solution by extraction method or sulfide precipitation method, and getting magnesium-containing solution; then adding bicarbonate and ammonia to magnesium-containing solution, and getting alkaline magnesium carbonate after stirring, heating, holding and filtering; then drying and atmosphere roasting the alkaline magnesium carbonate, and getting high-purity magnesium oxide; finally crushing the high-purity magnesium oxide, and getting magnesium oxide products of silicon steel. The invention through the innovative design of the equipment, combination and precise control, to achieve the efficient separation of nickel, cobalt and high-purity magnesium oxide products of low-cost preparation, so that nickel, cobalt and...

#magnesia #mgo #chemical #chemicalsupplier #magnesiumoxide

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