Instrumentation personnel in the chlor-alkali industry, please provide guidance
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In chlor-alkali chemical production, the sodium hypochlorite reaction tank contains both alkali and sodium hypochlorite; what material should be used for the diaphragm of the liquid level transmitter in this tank?
The sodium hypochlorite reaction tank contains both alkali and sodium hypochlorite; for such conditions, it is best to use tantalum metal or HC as the material for the transmitter, as these materials offer a long service life (we can typically use them for 5 years), while other materials have a shorter lifespan.
The original poster, come and shake hands; I also have a chlor-alkali project at the moment. I heard from the property owner that titanium is recommended for the material! I think HC would work as well. If needed, I can send you a reference table on the corrosion resistance of the materials used in the contact media; please provide your email address so we can stay in touch if there are any issues. I’m also having trouble with chlor-alkali processes. . . :handshake :lol
The people upstairs said that the material used is generally suitable; if you still feel that its service life is not long enough, a special tetrafluoro membrane can be attached to the surface of the diaphragm, which will essentially solve the problem of corrosion.