Innovative hydrometallurgical processing technique for ...
· Processing of manganesebearing materials and zinc plant residuesThe different steps involved were the following. (1) Crushing and grinding: the material that was to be treated was crushed and ground to BSS −100 mesh (150 μm). (2) Leaching: l of liquid effluent or 150 g of sodium sulphite in 1 l water was taken to the reaction vessel.
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