Copper electrolyte addition agent loaded with nanocarbon and preparation method of addition agent

Abstract

A copper electrolyte addition agent loaded with nanocarbon is manufactured by following raw materials comprising, by weight, 10 parts to 11 parts of gelatin, 0.3 part to 0.4 part of nano tea polyphenol, 13 parts to 14 parts of thiourea, 0.2 part to 0.4 part of fluoroethylene carbonate, 0.2 part to 0.3 part of nanocarbon, 0.3 part to 0.4 part of silica solutions, the proper amount of deionized water and 3 parts to 4 parts of 75wt% sulfuric acid. According to the copper electrolyte addition agent, the silica solutions are used for loading the nanocarbon and the fluoroethylene carbonate, the electrolytic efficiency is improved, the viscosity of the gelatin is prevented from being unstable, and obtained cathode copper is few in impurity, smooth in surface and compact in structure; the nano tea polyphenol is added, so that the oxidation resistance and antibacterial properties of the gelatin can be improved, and the use time is prolonged; and the production process enables the viscosity of the gelatin to be kept stable, and the phenomena that due to too large viscosity, copper foil is mixed up with the gelatin and becomes coarse are avoided.

Description

technical field [0001] The invention relates to the technical field of copper electrolyte, in particular to a copper electrolyte additive loaded with nano-carbon and a preparation method thereof. Background technique [0002] In the process of copper electrolytic refining, in order to obtain high-quality cathode copper with dense structure, smooth surface and low content of other harmful impurities, surface active substances-additives should be added to the electrolyte. At present, the main raw materials involved in the additives commonly used by most manufacturers are gelatin, thiourea and hydrochloric acid. Since gelatin is a high-molecular protein, it is not easy to dissolve. Most manufacturers use the method of melting in water at room temperature for 12 to 24 hours. Due to the long soaking time of this method, there are disadvantages such as easy contamination and deterioration, large viscosity changes, easy adsorption on the cathode, and inhibition of copper particle ...

AI Technical Summary

Problems solved by technology

[0005] Due to the type, proportion and dissolution method of the original additives, the total impurity content of grade A copper produced is 45ppm, the precipitation quality of cathode copper is not stable enough, the crystal is not dense, and the impurities such as arsenic, antimony and bismuth are high

[0006] (2) The flocculation effect of floating anode mud in the electrolyte is not good, and it is easy to adhere to the surface of the cathode to form granules