Method for mechanically activating and extracting molybdenum from refractory molybdenum ore

By combining mechanical crushing and wet leaching, the problem of molybdenum recovery from jiaosu molybdenum ore has been solved, achieving efficient and environmentally friendly utilization of molybdenum resources, and is applicable to a variety of molybdenum minerals.

CN116732355BActive Publication Date: 2026-05-12BEIJING RESEARCH INSTITUTE OF CHEMICAL ENGINEERING AND METALLURGY
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Patent Information

Application Number
CN202210199703.6
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-03-02
Publication Date
2026-05-12
Estimated Expiration
2042-03-02

AI Technical Summary

Technical Problem

Existing technologies are insufficient for the efficient recovery of molybdenum from sulphur molybdenum ore, and conventional methods suffer from low molybdenum recovery rates, high production costs, and environmental pollution.

Method used

The method employs a combination of mechanical crushing and wet leaching. By exposing the mineral surface and altering the activation energy through mechanical force, leaching is carried out under normal pressure using an activator and leachate, including ball milling activation and control of parameters such as temperature and time.

Benefits of technology

This method achieves efficient molybdenum leaching from molybdenum ore, improves molybdenum recovery rate, and is simple and environmentally friendly. It is applicable to monomolybdenum ore, nickel-molybdenum ore, and uranium-molybdenum ore.

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Abstract

The present application relates to the field of nonferrous metallurgy, and particularly relates to a method for extracting molybdenum from refractory molybdenum ore by mechanical activation. The method comprises the following steps: step S1: mechanically crushing colloidal sulfur molybdenum ore to below 2 mm; step S2: adding an activation agent and water in a predetermined ratio to the molybdenum ore particles with a particle size of 2 mm or less after crushing, and ball-milling and activating to obtain activated ore; step S3: adding a leaching solution to the activated ore according to a solid-liquid ratio, controlling the leaching temperature at 20-100 DEG C, and leaching for 1-12 hours; and step S4: after leaching, separating the solid and liquid to recover molybdenum in the leaching solution. The present application can efficiently leach molybdenum in colloidal sulfur molybdenum ore into a solution, and the process is simple, environmentally friendly, and can realize efficient utilization of refractory colloidal sulfur molybdenum ore and associated minerals.
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