Method for preparing ultra-fine copper powder from copper concentrate ore directly and ultrasonic membrane electrolysis

Abstract

A method preparing ultrafine copper powder through using copper finished ore directly puts the copper finished ore into high-energy stirring mill and pre-treats it chemically with mechanical force and, activates the copper finished ore and pulls-off drugs. It puts the treated copper finished ore into anodic pool of diaphragm electrolytic cells and dips into electrolytic solution added dispelser, the diaphragm electrolytic cell is in ultrasonic field, energizes DC between the anode and cathode pole; the copper dipped out by the anode reaction is decoded on the cathodic pole in the way of super-fine powder on the function of ultrasonic field, then collects super-fine copper powder. The present invention uses copper finished ore as raw material, activates and pre-treats the copper finished ore mechanically to activating and pulling-off drugs of it, then prepares the copper finished ore into ultrafine copper powder directly through hypersonic film electrolyzation, realizes the finish of metal extraction, copper powder preparation, powder body dispersion and surface modifying in one device and one time, shorten the metallurgical and materials processing process, it has characteristics of short process and simple technology.

Description

technical field [0001] The invention relates to a method for directly using copper concentrate to prepare superfine copper powder and an ultrasonic membrane electrolysis device used therein. Background technique [0002] The electrolysis method is one of the preparation methods of copper powder. The collection of copper powder is completed in the electrolytic cell. The electrolytic cell uses a highly polished metal plate as the cathode, an electrolytic copper plate as the anode, and the electrolyte is a sulfate system solution. Under high current density, hydrogen and copper powder are precipitated on the cathode at the same time, and fine and loose powder is obtained through regular collection by the brush. The use of electrolytes with low copper ion concentration, high acid content and high cathodic current density favors the formation of powdery deposits. Because traditional electrolysis uses electrolytic copper plates as anodes, there is a metal extraction process for c...

AI Technical Summary

Problems solved by technology

Due to the use of ultrasonic vibration in the above invention patent, the jet produced by it can make the metal deposited on the cathode surface quickly detach from the cathode surface and disperse in the entire solution with the flow of the solution, preventing the growth of particles and effectively controlling the particle size of the powder, but From copper concentrate to ultra-fine copper powder still requires multiple processes

Images