CN219099347U

CN219099347U - System for continuous refining electrolytic purification prepares super high pure copper more than 7N

Info

Publication number: CN219099347U
Application number: CN202223440795.7U
Authority: CN
Inventors: 韦建敏; 张晓蓓; 赵兴文; 徐伟
Original assignee: Honghua Technology Co ltd
Current assignee: Honghua Technology Co ltd
Priority date: 2022-12-22
Filing date: 2022-12-22
Publication date: 2023-05-30
Anticipated expiration: 2032-12-22

Abstract

The utility model discloses a system for preparing ultra-high purity copper with the concentration of more than 7N by continuous refining and electrolytic purification. Comprises a copper dissolving tank, a liquid pouring storage tank, an electrolytic circulating tank, a three-stage filter and an electrolytic refining tank. The electrolytic refining tank is formed by connecting a plurality of tank bodies in series-parallel. The utility model utilizes a system for preparing ultra-high purity copper with more than 7N by continuous refining and electrolytic purification to dissolve, filter and continuously electrolyze a copper-containing metal plate, and continuously electrolyze from a 4N copper plate to obtain the ultra-high purity copper with more than 7N. The production of high-purity copper adopts a continuous electrolysis process, takes 4N copper as a raw material, carries out primary electrolysis to more than 5N and secondary electrolysis to more than 7N, provides products with different qualities of 5N-7N according to different requirements, and can produce products with different qualities of 5N-7N in the same production line.

Description

System for continuous refining electrolytic purification prepares super high pure copper more than 7N

Technical Field

The utility model relates to the field of refined copper production, in particular to a system for preparing ultra-high purity copper with the concentration of more than 7N by continuous refining and electrolytic purification.

Background

The high-purity oxygen-free copper is high-purity copper which does not contain oxygen or any deoxidizer residues, and has the characteristics of good electric conductivity, heat conductivity, weldability, corrosion resistance, low-temperature performance, weather resistance and the like. The method is mainly used in the fields of flat panel display, circuit chips, new energy automobiles, robots, national electric power, aerospace, 5G, artificial intelligence and the like. The main production process of the high-purity oxygen-free copper comprises shearing, vacuum smelting, horizontal continuous casting, continuous extrusion, stretching, straightening, finished product annealing, inspection packaging and the like.

The current electrolysis copper production is an important way for refining crude copper, and when the electrolysis is carried out, electric energy is converted into chemical energy, and the whole electrolysis reaction is carried out in an electrolytic cell, so that impurities in the crude copper, such as iron, zinc and the like which are more noble than copper, can be dissolved into ions along with copper, and ion extraction preparation is carried out.

The equipment technology for preparing 7N high-purity copper by electrolysis in the market mainly depends on current to prepare blister copper, but when electrolysis is performed, electrolyte in the blister copper is inconvenient to carry out circulating treatment, and copper plates are inconvenient to connect an electrolytic tank.

Disclosure of Invention

The utility model aims to provide a system for preparing ultra-high purity copper with the concentration of more than 7N by continuous refining and electrolytic purification, which solves the problems that electrolyte in an electrolytic tank in the prior art is inconvenient to carry out circulating treatment and a copper plate is inconvenient to connect the electrolytic tank.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the system for preparing the ultra-high purity copper with the concentration of more than 7N by continuous refining and electrolytic purification comprises a copper dissolving tank, a liquid pouring storage tank, an electrolytic circulation tank, a three-stage filter and an electrolytic refining tank, wherein a discharge port of the copper dissolving tank is connected with a feed port of the liquid pouring storage tank through a pipeline, a discharge port of the liquid pouring storage tank is connected with a feed port of the electrolytic circulation tank through a pipeline, a discharge port of the electrolytic circulation tank is connected with a feed port of the three-stage filter through a pipeline, and a discharge port of the three-stage filter is connected with a feed port of the electrolytic refining tank through a pipeline.

Further, a pipeline is arranged between the electrolytic refining tank and the electrolytic circulating tank.

Furthermore, the electrolytic refining tank is of a cuboid structure and is formed by connecting a plurality of tank bodies in series-parallel connection.

Further, valves are arranged between the pipelines.

Further, the pipeline is a corrosion-resistant pipeline.

Based on the technical scheme, the embodiment of the utility model at least has the following technical effects:

(1) In the continuous electrolytic refining technology, the electrolytic current voltage and relevant parameters of the solution are effectively controlled in the electrolytic process, so that only copper is electrolyzed after electrolytic refining.

(2) By adopting a continuous electrolysis process, 4N copper is used as a raw material, the primary electrolysis reaches more than 5N, the secondary electrolysis reaches more than 7N, products with different qualities of 5N-7N are provided according to different requirements, and the products with different qualities of 5N-7N can be produced by the same production line.

(3) The electrolyte can be circularly filtered for use, so that the material is saved and the cost is reduced.

Drawings

FIG. 1 is a schematic structural view of embodiment 1 of the present utility model;

in the figure: 1. a copper dissolving tank; 2. pouring liquid storage tank; 3. an electrolytic circulation tank; 4. a third stage filter; 5. an electrolytic refining tank.

Detailed Description

The utility model provides a system for preparing ultra-high purity copper with the concentration of more than 7N by continuous refining and electrolytic purification, which comprises a copper dissolving tank 1, a liquid pouring storage tank 2, an electrolytic circulation tank 3, a tertiary filter 4 and an electrolytic refining tank 5, wherein a discharge port of the copper dissolving tank 1 is connected with a feed port of the liquid pouring storage tank 2 through a pipeline, a discharge port of the liquid pouring storage tank 2 is connected with a feed port of the electrolytic circulation tank 3 through a pipeline, a discharge port of the electrolytic circulation tank 3 is connected with a feed port of the tertiary filter 4 through a pipeline, and a discharge port of the tertiary filter 4 is connected with a feed port of the electrolytic refining tank 5 through a pipeline.

And a pipeline is further arranged between the electrolytic refining tank 5 and the electrolytic circulating tank 3, so that the electrolyte is circularly filtered.

The electrolytic refining tank 5 has a cuboid structure and is formed by connecting a plurality of tank bodies in series-parallel.

Valves are arranged between the pipelines.

The pipeline is a corrosion-resistant pipeline.

The following is a further detailed description with reference to the accompanying drawings.

As shown in figure 1 of the drawings,

the copper-containing metal plate is placed into a copper dissolving tank 1, metal is dissolved into solution through electronic grade nitric acid and pure water, the solution enters an electrolyte pouring storage tank 2 along with a pipeline, a valve is opened, and the solution enters an electrolytic circulation tank 3 for filtration to obtain electrolyte. The 4N copper plate is firstly cleaned by hydrochloric acid with low concentration, is cleaned by pure water, is mainly washed to remove dust impurities and the like on the surface, is then electrolyzed in a high-purity nitric acid system as an anode, is electrolyzed in an electrolytic refining tank 5 by taking a titanium plate as a cathode plate as an initial polar plate, is finally electrolyzed by taking a thin copper plate pulled down from the cathode plate as the cathode, is electrolyzed once until the purity is less than 7N, and is repeatedly refined and electrolyzed by taking the electrolyzed cathode copper as the anode to obtain the ultra-high-purity 7N copper plate.

Claims

1. The utility model provides a system for continuous refining electrolytic purification prepares super high pure copper more than 7N, its characterized in that, including dissolving copper tank (1), pouring storage tank (2), electrolytic cycle jar (3), tertiary filter (4), electrolytic refining tank (5), the discharge gate of dissolving copper tank (1) passes through the pipe connection with the feed inlet of pouring storage tank (2), the discharge gate of pouring storage tank (2) passes through the pipe connection with the feed inlet of electrolytic cycle jar (3), the discharge gate of electrolytic cycle jar (3) passes through the pipe connection with the feed inlet of tertiary filter (4), the discharge gate of tertiary filter (4) passes through the pipe connection with the feed inlet of electrolytic refining tank (5).

2. The system for preparing ultra-high purity copper with more than 7N through continuous refining electrolytic purification according to claim 1, wherein a pipeline is further arranged between the electrolytic refining tank (5) and the electrolytic circulation tank (3).

3. The system for preparing ultra-high purity copper with the concentration of more than 7N by continuous refining and electrolytic purification according to claim 1, wherein the electrolytic refining tank (5) is of a cuboid structure and is formed by connecting a plurality of tank bodies in series and parallel.

4. The system for preparing ultra-high purity copper with more than 7N through continuous refining electrolytic purification according to claim 1, wherein valves are arranged between the pipelines.

5. The system for producing ultra-high purity copper above 7N by continuous refining electrolytic purification according to claim 1 or 2, wherein the pipeline is a corrosion resistant pipeline.