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Electrolytic cell for removal of material from a solution

A technology of electrolytic cells and solutions, applied in electrolytic components, electrolytic processes, electrolytic organic production, etc., can solve problems such as unsatisfactory operation, and achieve the effect of simplifying the separation method

Inactive Publication Date: 2006-12-06
GLOBAL IONIX INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The applicant found that in practice the system did not work satisfactorily because the spatula tended to leave a hard film on the electrode after the first removal was performed

Method used

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  • Electrolytic cell for removal of material from a solution
  • Electrolytic cell for removal of material from a solution
  • Electrolytic cell for removal of material from a solution

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0062] The solution containing 100 ppm zinc from the zinc chloride electroplating solution was reduced to 15 ppm in two steps: in the first step, the rotating electrode used 80 mA / cm2 The current density, the tangential speed of the rotating electrode is 3.5-4.5m / sec, the processing time is 1.33 times the flow rate; the second step, use half the current density of the first step but twice the processing time.

Embodiment 2

[0064] A solution containing 200ppm copper from an acid-resistant copper plating solution reduces the copper to 20ppm, and the current density of the rotating electrode is 60mA / cm 2 , the tangential speed of the rotating electrode is 3.0-4.0m / sec, and the processing time is the flow rate multiplied by 1.25.

Embodiment 3

[0066] The solution containing 200ppm nickel from the acid-resistant sulfamate nickel plating solution reduces the nickel to 20ppm, and the current density of the rotating electrode is 27mA / cm 2 , the tangential velocity of the rotating electrode is 2.5-3.5m / sec, and the processing time is equal to the flow velocity multiplied by 1.5.

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Abstract

Disclosed is an electrolytic cell for removal of material from a solution. The cell comprises a cavity for receiving the solution, a rotatable electrode located within the cavity, a counter-electrode in spaced relation to the rotatable electrode, and an ultrasonic generator coupled to said cavity for directing ultrasonic energy toward the rotatable electrode to displace solid material extracted from the solution by an electrochemical reaction. The rotatable electrode may form a cathode, and the counter-electrode may form an anode, wherein metal in the solution is deposited on the cathode as a metal powder, such that the ultrasonic energy displaces the metal powder from the cathode. Alternatively, the rotatable electrode may form an anode, and the counter-electrode may form a cathode, wherein organic waste in the solution is deposited on the anode, such that the ultrasonic energy removes the deposited organic waste from the anode.

Description

technical field [0001] The present invention relates to an electrochemical method and apparatus for treating solutions by electrowinning or electrooxidizing. Background technique [0002] The recovery of substances from solutions by electrolysis is not a new concept. Many industries, such as electroplating processing, mining processing, and metal surface finishing, produce spent solution products containing metal ions, the recovery of which is beneficial both environmentally and economically. Waste from solutions containing unrecovered metals adds to the amount of silt deposited on terrestrial fields. Many metal recovery systems in use today employ mechanical devices, such as blades, to remove deposited material from the electrodes. Disadvantages of using mechanical means are increased wear, susceptibility to damage and long processing times. [0003] US4028199 discloses a method of extracting powder from solution using a rotating electrode. Use a mechanical scraper to r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25B3/12C25B3/02C25B1/00C25C5/02C25C7/00C25B3/13C02F1/36C02F1/461C02F1/467C25B3/23C25C7/08
CPCC25C7/007C02F2001/46119C02F1/467C02F1/46104C02F1/46109C02F1/36C25C5/02C02F2201/4617C02F1/4678C25C7/00C02F2001/46123C25C7/08C02F2101/30C02F1/4672C02F2103/16C02F2101/20C02F2201/46125C25C5/00C02F1/461
Inventor 伊夫·米歇尔·亨努塞特
Owner GLOBAL IONIX INC
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