High-efficiency leaching method for ion-type rare earth heap leaching
By burying vent pipes and controlling their opening and closing during rare earth heap leaching mining, the problem of low permeability caused by gas confinement within the ore body was solved, achieving efficient rare earth mining and cost reduction.
CN116751996BActive Publication Date: 2026-07-07PANZHIHUA UNIV
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- PANZHIHUA UNIV
- Filing Date
- 2023-06-16
- Publication Date
- 2026-07-07
Smart Images
Figure CN116751996B_ABST
Abstract
The present application relates to rare earth leaching mining technical field, disclose a kind of ion type rare earth heap leaching high-efficiency leaching method.Liquid collection pipe closed in initial stage of leaching and exhaust pipe buried in the interior of ore body, ammonium sulfate solution is pumped into from the top of ore body, and the liquid collection pipe and the exhaust pipe are opened when ammonium sulfate solution is evenly immersed in ore body.The ion type rare earth exhaust extraction efficiency heap leaching leaching method of the present application, air enclosed in the pore of ore body is wrapped to form bubble by ammonium sulfate solution and moves upward, hinders the downward infiltration of ammonium sulfate solution, makes ammonium sulfate solution stay, fills the pore, so that the interface content of ammonium sulfate solution in pore is improved, and the saturation of ore body immersion is greatly improved, the penetration efficiency is improved, the mining efficiency is improved, and the mining cost is reduced.
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