Metal material recycling device and method for leaching fluorine beryllium thallium and lithium rubidium cesium in lithium slag

By using the synergistic effect of ultrasound and electric field to accelerate the leaching of target metals in lithium slag, the problems of long leaching time and passivation of lithium slag surface are solved, and efficient metal recycling is achieved.

CN121826367APending Publication Date: 2026-04-10YICHUN JIULING LITHIUM IND CO LTD
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Patent Information

Application Number
CN202512024446.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-12-30
Publication Date
2026-04-10

AI Technical Summary

Technical Problem

Existing metal recycling devices have long leaching times, which can easily passivate the surface of lithium slag and affect ion release efficiency.

Method used

Ultrasonic waves are generated using an ultrasonic generator and an ultrasonic transducer. Combined with mechanical stirring and an electric field, the acid solution penetrates and ion diffuses through micro-jet impact on the mineral surface. The leachate is extracted by a water pump, and an acid replenishment mechanism is set up to ensure the consistency of the reaction.

Benefits of technology

Shorten leaching time, increase the leaching rate of target metal ions, avoid passivation of lithium slag surface, achieve efficient solid-liquid separation, reduce manual operation, and ensure the controllability and consistency of reaction.

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Abstract

The invention provides a metal material recycling device and a method for leaching fluorine beryllium thallium and lithium rubidium cesium in lithium slag. Relates to the field of metal material recycling, and comprises a leaching tank placed on the ground through four supporting frames, the top of the leaching tank is fixedly provided with a top cover, and the bottom of the leaching tank is fixedly provided with a bottom cover. According to the metal material recycling device and the leaching method for fluorine beryllium thallium and lithium rubidium cesium in the lithium slag, the ultrasonic generator is arranged to supply energy to the first ultrasonic transducer and the second ultrasonic transducer to generate ultrasonic waves, the ultrasonic waves generate microjet flow to impact the surface of minerals, acid liquor permeation and ion diffusion are accelerated, the leaching time is shortened, and the efficiency is improved; the surface of the lithium slag is not prone to passivation, the leaching rate of target metal ions is increased, the leaching liquid is pumped out through the water suction pump, manual contact with the leaching liquid in the next solid-liquid separation procedure is facilitated, dilute sulfuric acid is supplemented through the acid supplementing pipe, then the lithium slag is placed through the funnel, and the consistency and controllability of starting of the leaching reaction are guaranteed.
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