Method for generating mechanical and electrochemical cavitation, method for changing the surface geometry and electrochemical properties of a material, method for stripping rare metals, and apparatus for generating mechanical and electrochemical cavitation

摘要

A method of generating mechanical and electrochemical cavitation, a method of changing the surface geometry and electrochemical properties of a material, a method of stripping rare metals using the generated mechanical and electrochemical cavitation, and A method of generating a mechanical and electrochemical cavitation generator is provided. In the method of generating mechanical and electrochemical cavitation, a water jet is injected from an injection nozzle (20) immersed in water (W1), and the flow is controlled against the flow cavitation caused by the injection of the water jet. Cavitation (MFC) having both functional action and electrochemical action is generated by irradiating ultrasonic waves (U1) at a position where the flow velocity of the flow cavitation is less than a predetermined moving speed, in which cavitation can expand. Let