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What are the reasons for the high salt content in the alkali during the electrolysis process?

2009-03-28View Original

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This post was last edited by sunjl1981 on 2013-1-6 at 19:59. It would be helpful if a solution for the relevant issue could be provided. This post was last edited by zhaojt007 on 2009-3-29 at 19:45.] # , , &
Reply #22009-03-28
Does alkali contain alkali? ? ? ? I don’t know what it means. Is it salty?
Reply #32009-03-29
Please have the original poster re-edit and review it. If the salt content in the alkali is high, it is most likely that the ion membrane has been damaged, with pinholes appearing; a membrane leakage test can be conducted, and the membrane should be replaced.
Reply #42009-03-29
Is it due to a high concentration of sodium hydroxide? If so, increase the amount of pure water containing alkali that is returned to the system. Last edited by yzhms on 2009-3-29 23:14.]
Reply #52009-03-29
Push on it myself. Is the high salt content in alkalis due solely to the membrane?
Reply #62009-03-29
The membrane may have pinholes, and there could also be an issue with the coating.
Reply #72009-03-29
http://bbs.hcbbs.com/thread-230526-1-2.html
Reply #82009-03-30
The main reason is of course the membrane. However, the concentration of the anode solution needs to be a bit higher.
Reply #92009-03-30
Also, the salt content in the alkali is less than 40PPm. How much do you have now? If it is greater than 100PPm. You need to consider replacing the membrane. At the same time, you should compare it with the current efficiency. Oxygen content index in chlorine. Comprehensive analysis. This post was last edited by yzhms on 2009-3-30 15:56.]
Reply #102009-03-30
First, consider the possibility of pinholes in the membrane; check the current parameters for each individual cell to identify any leaks. Next, examine the parameters of the refined saline solution. Third, check the concentration of the catholyte solution as well as the parameters of pure water. That’s about it. . .
Reply #112009-03-30
Salts in the alkali: First, check whether there is a problem with the membrane, and also what current level are you using? The salt content in alkali during low-current operation is also high. . .

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