Dielectrophoresis separation system for recycling precious metals

A technology of dielectrophoresis and precious metals, applied in the field of separation, can solve the problems of low particle concentration, low degree of industrial automation, large investment required, etc., and achieve the effect of reducing environmental pollution and reducing electrothermal effect.
CN101890296AInactive Publication Date: 2010-11-24ηŽ‹ε†°
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
ηŽ‹ε†°
Publication Date
2010-11-24
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The invention relates to a dielectrophoresis separation system for recycling precious metals, which comprises a mixer, a separation chamber and a collector, wherein the dielectrophoresis separation chamber is in a vertical hexagonal barrel shape; the six edges in the hexagonal barrel are respectively provided with a stainless steel sheet electrode; the center shaft in the hexagonal barrel corresponding to each stainless steel sheet electrode is evenly equipped with an insulated wire electrode; the collector is installed below the insulated wire electrodes; the lower end of the dielectrophoresis separation chamber is coaxially provided with the collector; a funnel organ is installed in the collector corresponding to the lower end of the insulated wire electrode; the funnel organ is communicated with an output pipe; and the lower bottom of the collector is provided with a cyclic outlet. The invention acquires unseparated precious metal granules in precious metal waste by utilizing the unique high selectivity and high controllability in the dielectrophoresis principle in physical chemistry to maximally recycle precious metals and minimize the possible environmental pollution caused by precious metals. The invention provides a brand new environment-friendly high-efficiency continuous separation technology for separating and recycling precious metals in tailings and waste. The invention has the advantages of environmental protection and energy saving, and is beneficial to further separation of precious metals in precious metal lean ores and tailings in China.
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Description

technical field

[0001] The invention belongs to the technical field of separation, and relates to the separation and extraction of precious metals such as gold, in particular to a dielectrophoresis separation system for recovering precious metals. Background technique

[0002] Precious metals, such as gold, silver, platinum, etc., often remain in the tailings or garbage (such as electronic waste) in the form of tiny (diameter micron or less than micron) particles in a free state, and their concentration is very low (often less than a few hundred milligrams per t), and exist as ultra-thin flakes with non-uniform geometry and unequal size distribution. This specific existence mode cannot be effectively separated by conventional separation methods. If the separation method of the original (rich) ore is used to extract the precious metals remaining in the tailings, due to the low particle concentration, the required investment is large, the separation efficiency is low, and the ...

Claims

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