Acidic copper chloride etching liquid electrolytic regeneration recycling and copper plate recovery device and method

Abstract

The invention discloses an acidic copper chloride etching liquid electrolytic regeneration recycling and copper plate recovery device and method. The device comprises an electrolytic bath which is divided into a cathode region and an anode region by virtue of a composite conductive macromolecular membrane, an etching auxiliary cylinder, an etching liquid waste liquid collecting cylinder, a regenerated liquid collecting cylinder and an exhaust treatment device, wherein the cathode region is internally provided with a cathode electrolytic sheet, the anode region is internally provided with an anode electrolytic sheet, and the etching auxiliary cylinder is internally provided with a gas dissolving device; a waste liquid generated by the etching cylinder is fed to the cathode region of the electrolytic bath by virtue of the etching liquid waste liquid collecting cylinder, a water inlet and a gas outlet are formed in the anode region of the electrolytic bath, the water outlet is communicated with the etching auxiliary cylinder by virtue of the regenerated liquid collecting cylinder, gases generated by the anode region are introduced to the etching auxiliary cylinder by virtue of the gas dissolving device at the gas outlet, the etching auxiliary cylinder is communicated with the etching cylinder, and exhaust gases generated by the etching auxiliary cylinder are fed to the exhaust gas treatment device. The device and method disclosed by the invention solve the problem that an existing acidic copper chloride etching liquid is high in energy consumption of regeneration recycling, low in reuse rate, more in copper impurities of the cathode and the like.

Description

[0001] technical field [0002] The invention relates to the fields of regeneration cycle of acidic copper chloride etching solution and recovery of nonferrous metals, in particular to an electrolytic regeneration cycle of acidic copper chloride etching solution and a copper plate recovery device and method. [0003] Background technique [0004] Acidic copper chloride etching waste liquid has the characteristics of great environmental hazards and high resource recovery value. At present, the recycling process of acidic copper chloride etching solution mainly includes organic solvent extraction method and membrane electrolysis method, and the membrane electrolysis method includes ion membrane electrolysis method and diaphragm electrolysis method. The low recycling rate of the organic solvent extraction method seriously restricts its application, and the current regeneration cycle process mostly uses the membrane electrolysis method. [0005] The ionic membrane electrolysis...

AI Technical Summary

Problems solved by technology

[0007] Aiming at the deficiencies in the above-mentioned technologies, the present invention provides an acidic copper chloride etching solution electrolytic regeneration cycle and a copper plate recovery device and method to solve the problem of high energy consumption, low recycling rate, and high cathode copper impurity content in the existing regeneration cycle technology. And other issues

Images