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Overview of Laboratory Electrolyzer

2021/12/03 10:53
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[Abstract]:
The internal electrode of Laboratory Electrolyzer is more compact with vertical installation, the conductive plate is easy to connect, and it is helpful to reduce the bubble effect.

The residence time of Laboratory Electrolyzer electrolyte in the electrolyzer not only affects the production capacity of the equipment, but also in some cases, will affect the current efficiency of the electrolysis process, such as the production of sodium chlorate by electrolysis, due to the intermediate product hypochlorous acid (HClO) The chemical reaction with hypochlorite ions (ClO3) is very slow. If left in the electrolytic cell for a long time, not only will the utilization rate of the electrolytic cell be reduced, but the hypochlorite ions will be oxidized on the surface of the anode or reduced on the surface of the cathode. Current efficiency. Therefore, modern electrolytic cell design strives to reduce the volume so that the electrolyte flows quickly along the electrodes. If further reaction is needed, a separate chemical reactor can be installed outside the electrolytic cell.
  
The internal electrode of Laboratory Electrolyzer is more compact with vertical installation, the conductive plate is easy to connect, and it is helpful to reduce the bubble effect. Because there are often bubbles on the surface of the electrode where gas is deposited, it will reduce the working surface area of ​​the electrode. In addition, the solution near the electrode will also be filled with bubbles, increasing the resistance of the solution. This phenomenon is called the "bubble effect". However, near the surface of the vertical electrode, the characteristics of high aeration in the solution, low solution density and fast rising speed can be used to form a natural circulation of the electrolyte, accelerate the bubbles to leave the electrode surface, and reduce the bubble effect. When the vertical electrode is used as a gas electrode, the shape of the electrode is mostly mesh, which not only increases the working surface area, but also facilitates the escape of bubbles.
  Laboratory Electrolyzer
Laboratory Electrolyzer materials can be steel, cement, ceramics, etc. Steel is resistant to alkali and is most widely used. For the corrosive electrolyte, the steel tank is lined with lead, synthetic resin or rubber.
  
At present, Laboratory Electrolyzer is developing in the direction of large capacity and low energy consumption. Bipolar electrolyzers are suitable for large-scale production and have been successively adopted by the water electrolysis and chlor-alkali industries.

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