麻豆社

Beneficiation Technology

As for manganese carbonate ore, strong magnetic separation, dense-media separation and flotation shall be considered. As for manganese sulfur-carbonate ore, flotation shall be taken priority to separate chalcopyrite, pyrite, and manganese successively. As for hydrothermal zinc-lead carbonate manganese ore, flotation and strong magnetic separation shall be adopted. As for manganese- sulfur ore, baking is used to remove sulfur. Some manganese ore also adopts baking to remove volatile ingredients to get finished product. Because there is some iron, phosphate and gangue which coexists with manganese and is hard to be separated, smelting should be adopted. As for the beneficiation of manganese oxide ore, gravity separation is recommended. As for weathered manganese oxide ore, because of the existence of much slurry and fines, jigging and cleaning tables can be used for secondary separation. For ore washing and spillover sometimes needs gravity separation and strong magnetic separation. For some deposited native manganese oxide ore, dense-media separation and jigging are used to remove gangue and to get blocky concentrate.