CN103757225A - Method for leaching pyrolusite - Google Patents
The invention discloses a method for leaching pyrolusite. The method comprises the steps of adding pyrolusite powder with the particle size being not greater than 180 meshes and rice straw powder with the particle size being not greater than 1.5mm into a reaction kettle which is resistant to pressure and the corrosion of sulfuric acid and nitric acid, adding a mixed solution of sulfuric …
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