In the production process of circuit boards, copper sinking, electroplating, stripping, etching and other processes will generate a large amount of wastewater. According to different processes, it is divided into alkaline etching and acid etching. The mass concentration of copper etching mother solution is generally about 100g/L. The two waste liquids can recover copper individually or can be mixed to recover copper. During the electrolytic extraction of metals in sulfuric acid solution, oxygen is released from the anode, and the selection of suitable anode materials is a very important issue.

Advantages of Titanium Anodes

1. The anode size is stable, and the electrode spacing does not change during the electrolysis process, which can ensure that the electrolysis operation is carried out under the condition that the battery voltage is stable.

2. Low operating voltage and low power consumption, which can reduce power consumption by about 20%.

3. The titanium anode has a long service life. In the chlorine industry of the diaphragm method, the coated titanium anode is resistant to chlorine and alkali corrosion.

4. It can overcome the dissolution problem of graphite anode and lead anode, avoid the pollution of electrolyte and cathode products, and improve product quality.

5. The current density can be increased. For example, in the production of chlor-alkali by the diaphragm method, the current density of the graphite electrode is 8A/dm2, and the titanium anode can be doubled to 17A/dm2, so that the output can be doubled in the electrolysis plant and the same cell.

6. It has strong corrosion resistance and can work in a variety of electrolytic media with strong corrosiveness and special requirements.

7. It can avoid the short circuit problem after the deformation of the lead anode, thereby improving the current efficiency.

8. The base titanium material can be reused.

In the electrolytic extraction of metals, an insoluble titanium anode is used to reduce the metal ions to be extracted in the leaching and purified electrolyte at the cathode to obtain pure metal.

Electrolytic metallurgy occupies a large proportion in the hydrometallurgical industry. The non-ferrous metals produced by electrolytic metallurgy include Zn, Cd, Cu, Mn, Co, Cr, Ni, iN, etc.

The advantages of electrolytic metallurgy are high selectivity, high-purity metals can be obtained, and useful metals can be recovered. Therefore, it can process low-grade minerals and polymetallic ores with complex compositions, which is beneficial to the comprehensive utilization of resources. Copper extraction is a typical example. Due to the depletion of high-quality copper ore resources, the smelting of low-grade copper ore has received attention, and electrolytic extraction is generally used. In addition, the pollution to the environment is small, and the production is easier to be continuous and automated, but the energy consumption is high. At present, energy saving is a very important research topic in electrolytic metallurgy.

Electrolytic extraction of metals can be carried out in chloride electrolytes, sulfate electrolytes and chloride-sulfate mixed electrolytes.

In recent years, titanium-plated electrodes have been widely used in the field of electrodeposited metals, with stable quality, light weight, good corrosion resistance, long life, stable electrode spacing, increased current density, reduced battery pressure, energy saving, high efficiency, good flexibility, etc. advantage. Size, and can be customized according to user requirements, showing the superior performance of titanium electrodes from all aspects.