Three-dimensional electrode reactor with coupling of Fe<2+> cathode reduction and anodization

Abstract

The invention relates to a three-dimensional electrode reactor with coupling of Fe<2+> cathode reduction and anodization, in particular to a two-chamber electrochemical reactor with a three-dimensional moving bed electrode, with a hydrogen evolution overpotential metal particle as an electrocatalytic material and a surface renewable, as a cathode, a conductive carbon material as an anode and a perfluoro cation membrane as a separator. While Fe<2+> is removed by electrodeposition in a cathode chamber, Fe<2+> is electrochemically oxidized into Fe<3+> in an anode chamber, thereby achieving coupling between the removal of Fe<2+> and the formation of Fe<3+>. The electrochemical reactor disclosed by the invention has the remarkable characteristics of reasonable structure, renewable electrode surface, recycling of the electrode, simple preparation of the reactor, low production cost, convenience for realization of large-scale industrial application, and the like, and is an electrochemical reactor with coupling of Fe<2+> cathode reduction and anodization for Fe<3+> preparation, which meets the requirements of green chemical development.

Description

Technical field [0001] The present invention relates to a Fe 2+ Cathodic reduction and anodic oxidation coupled three-dimensional electrode reactor, especially a three-dimensional moving bed electrode with high hydrogen evolution overpotential as electrocatalytic material and surface renewable three-dimensional moving bed electrode as cathode, conductive carbon material as anode, perfluorinated The cation membrane is a double-chamber electrochemical reactor with isolation membrane. Fe in sulfuric acid solution in cathode chamber 2+ An electrochemical reduction reaction occurs to deposit Fe on the cathode, thereby removing Fe from the sulfuric acid solution in the cathode compartment 2+ ; Fe in sulfuric acid solution in anode chamber 2+ Electrochemical oxidation reaction occurs to produce Fe 3+ . Electrodeposition to remove Fe in the cathode chamber 2+ At the same time, the Fe in the anode chamber 2+ Electrochemical oxidation to Fe 3+ , So as to achieve the removal of Fe 2+ And g...

AI Technical Summary

Problems solved by technology

[0024] (1) Lack of a certain production capacity, high preparation efficiency, and the ability to remove Fe by electrochemical deposition 2+ and electrochemically prepared Fe 3+ coupled electrochemical reactor

[0025] (2) There is a lack of scientific and reasonable anode materials and structural forms to meet the requirements of electrochemical deposition to remove Fe 2+ and electrochemically prepared Fe 3+ Conditions for coupled operation process

[0026] (3) Lack of removal of Fe by electrochemical deposition 2+ and electrochemically prepared Fe 3+ Electrodes and electrochemical reactors capable of continuous operation coupled with new processes

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