Device and method for achieving separation of negative and positive ions in solution through magnetic field

Abstract

The invention provides a device and method for achieving separation of negative and positive ions in a solution through a magnetic field. The method can further be used for separation or enrichment ofelectronegative and electropositive particle groups in the solution. The device comprises a Lorentz force separation device, a magnetic field space, a liquid conveying part and a liquid collecting part. According to the device and method, the ions are separated or enriched through Lorentz force borne by the charged ions during movement of the ion solution in the magnetic field; the static magnetfield is changed into the rotating magnet field to increase the relative movement speed between the ions and the magnetic field so as to improve the separation effect; and the negative and positive ions in the solution are separated or enriched under the normal temperature and pressure, and compared with an electrochemical reaction method, the electrode corrosion problem is avoided. The device hasthe characteristics that the structure is simple, operation is convenient, the construction cost is low, energy consumption is low, the service life is long, the applicability is wide, and magnetic pollution is small.

Description

technical field [0001] The invention belongs to the field of ion separation, and in particular relates to a device and method for realizing the separation of anions and cations in a solution by using a magnetic field. Background technique [0002] Most of the existing magnetic separation methods are based on magnetic particle separation methods such as magnetophoresis, magnetic capture-release, and magnetic field flow classification. There are various types of separation methods, and they have also shown good application prospects. [0003] The existing magnetic separation method is only good for the separation effect of magnetic particles, but the separation effect for non-magnetic particles is very low or can only be used as an auxiliary means. [0004] For the separation of anions and cations in an ionic solution, the Lorentz force acting on the ions generated when the ionic solution flows in a magnetic field can be used to achieve the separation or enrichment of ions. ...

AI Technical Summary

Problems solved by technology

However, in practical applications, the length of the separation channel is limited by the range of the magnetic field, and the force and time of the magnetic field on the ions (depending on the flow rate of the solution in the magnetic field) are limited.

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