Method for removing magnesium from magnesium-rich manganese ore
By grinding, calcining and rinsing the magnesium-rich manganese ore, the removal of magnesium is successfully achieved, solving the problems of low magnesium removal efficiency and high cost in the prior art, and achieving efficient and economical magnesium removal and manganese recovery.
CN119979913APending Publication Date: 2025-05-13GUANGXI ESOKE NEW MATERIAL TECH CO LTD
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Patent Information
- Application Number
- CN202510011985.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-06
- Publication Date
- 2025-05-13
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Figure CN119979913A_ABST
Abstract
The invention discloses a method for removing magnesium from magnesium-rich manganese ore. The method comprises the following steps: (1) mixing the magnesium-rich manganese ore, a reducing agent and an accelerant according to a certain proportion to prepare powder; (2) roasting the powder for 1-5 hours under the condition of 300-600 DEG C to obtain a roasted material; (3) pulping the roasted material and water according to a solid-to-liquid ratio of 1.0 Kg: (1.0-5.0) L, adding a pH regulator, and carrying out two-stage regulation selective rinsing at 30-90 DEG C for 1.0-3.0 hours to obtain rinsed pulp; and (4) carrying out suction filtration and solid-liquid separation on the rinsed pulp to obtain a magnesium-removed filter cake and magnesium-containing filtrate. By means of the method, the removal rate of magnesium in the magnesium-rich manganese ore reaches 60%-81%, and the recovery rate of manganese is 70%-88%. The method has the advantages of wide applicability, simple process and environmental protection.
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