Electrolyte additive for producing copper starting sheet and use method thereof

Abstract

The invention relates to an electrolyte additive used for producing copper initiated plate electrode and the use method, which is characterized in that the invention is formed by mixing Andert, gelatin, thiourea, hydrochloric acid in proportion, the mass ratio is andert: gelatin: thiourea: hydrochloric acid = 1:(3.27 to 4.31):(1.23 to 1.72):(0.13 to 0.19). The invention is characterized in that the produced initiated plate electrode has less chemical composition of impurities, smooth physical surface smooth, dense crystal and uniform thickness. The initiated plate electrode has better overhanging degrees after being processed by joint unit. The invention is an initiated plate electrode production technology which can stably improved the quality of high-purity copper cathode.

Description

technical field [0001] The invention relates to an electrolyte additive for producing copper starter sheets and a use method thereof technical background [0002] In the process of copper electrolytic refining, in order to obtain high-quality cathode copper with dense structure, smooth surface, and less gas and other harmful impurities, surface active substances-additives should be added to the electrolyte. The main components of commonly used additives are gelatin, thiourea and hydrochloric acid. Since gelatin is a high-molecular protein, it is not easy to dissolve, and it is usually melted by soaking in water at room temperature for 12 to 24 hours. Due to the long soaking time of this method, there are following defects: (1) easily polluted and deteriorated; (2) when soaking, there are many containers used and the space taken up is large; (3) the pre-melted container needs to be soaked The gelatin is moved to the additive stirring tank, which is prone to operational devi...

AI Technical Summary

Problems solved by technology

Due to the long soaking time of this method, there are following defects: (1) easily polluted and deteriorated; (2) when soaking, there are many containers used and the space taken up is large; (3) the pre-melted container needs to be soaked The gelatin is moved to the additive stirring tank, which is prone to operational deviation, resulting in inaccurate measurement and high labor intensity; (4) due to the large pre-cured volume and low temperature, it is difficult to achieve the melting point temperature under a certain amount of dilution volume (5) Due to the volume limitation, the mixing is uneven; (6) A large number of containers need to be cleaned every day, and a little carelessness will cause the solution to deteriorate, which in turn will affect the product quality

[0005] (2) The machining performance is poor, the texture of the starting plate is relatively brittle and hard, the surface crystallization is rough, and the thickness is uneven

Therefore, the defects of the initial plate are obviously exposed after being processed by the linkage unit, so that 100% of the flat plate must be made after the upper slot. The negative impact will follow, not only the labor intensity of workers is high, but also the negative impact will snowball, and finally affect multiple production indicators

[0006] (3) The precipitation quality of cathode copper is not stable enough, and the crystallization is not dense;

[0007] (4) The flocculation effect of floating anode slime in the electrolyte is not good, and it is easy to adhere to the surface of the cathode to form granules

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