I want to make a small electrolytic tank by myself. Do you have any good suggestions?
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This post was last edited by sunjl1981 on 2013-1-6 22:11 First of all, my electrolytic cell is intended to be used to electrolyze 5% hydrochloric acid. The cell is made of polytetrafluoroethylene, the separator is made of polytetrafluoroethylene membrane, and the electrode is made of graphite. There are several questions: First, how to connect graphite to electricity? Second, how can the diaphragm be fixed, tightly sealed, and easily replaced? Third, how can we make the spacing between the plates adjustable? Fourth, chlorine gas is generated along the plate. How to collect it through the pipe? I'm not very professional, please give me some advice. # hcbbs
If you don’t even know these things, I suggest you first understand the large electrolytic tank.
First, how to connect graphite to electricity? Use copper wires to connect. The larger the current, the lower the conductivity, the better. It is better to use silver. Remember, don’t connect to AC power, connect to DC power!
Graphite is used for the anode, what is used for the cathode? Just press the graphite and copper wires together and fix them. For the problem of anode fixation, you can make a cell bottom plate, connect it to the anode plate and seal it. Since the author uses polytetrafluoroethylene as the cell body, it is recommended to use metal anodes. Regarding the issue of fixing the diaphragm, this is more difficult. It is still recommended to use the pressure difference between the anode chamber and the cathode chamber to attach it to the cathode. If a metal anode is used, it can also be attached to the anode mesh. To export gas, the entire tank must be divided into an anode chamber and a cathode chamber and sealed separately, so that * * The anode gas and cathode gas are pumped out.
4# Huawei requires electrolysis of 5% hydrochloric acid, so consider that the metal used in the electrodes will corrode. We plan to use graphite for both the cathode and the anode. I have never seen a large electrolyzer in person, and many details cannot be found in the information, so don’t laugh at it. If the plates are connected to the bottom plate, how thick do they need to be? If the experiment does not require efficiency and only uses one set of electrodes, that is, one anode plate and one cathode plate, can the effect of complete electrolysis be achieved?
If efficiency is not required, it would be difficult to achieve complete electrolysis.
It is recommended that you buy one from Beijing Chemical Machinery Factory. But why are you doing this trough? Do you want to do an experiment or just want to get some chlorine for fun?
The anode can be made of titanium with an activated coating, or the existing metal anode mesh can be used and processed into a style that meets your requirements. The cathode uses graphite, but I feel there is still something wrong with it. For experimental purposes, just use a unipolar plate.
You can use titanium. :victory::victory:
The main purpose of making this tank is to electrolyze hydrochloric acid. It depends on how much electricity is needed. Because currently a lot of industrial waste hydrochloric acid cannot be directly recycled and has a low concentration, so I want to try electrolysis. But now I just can’t figure out what kind of tank should be made? Beihua machines are all large electrolyzers. I don’t know how to energize the unipolar plate?
Want to know the power consumption? Haha, it’s about 2300kwh DC. Wood in Germany did this experiment several years ago. The cost of chlorine is still too high, so it is better to purchase it directly from the market.