Regarding the corrosivity of KF and NaF solutions
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Dear experts, I need some advice: if we have saturated solutions of KF and NaF in a solution at 90°C that is alkaline, what material would be suitable for storing them?
Ordinary iron alloys certainly won’t work, and enamel ones are not good either. Monel alloy can be used, as well as materials with a fluoroplastic lining; PVC is also an option.
This post was last edited by Wang Genrong on 2020-11-20 at 11:49. A solution temperature of 90°C is too high; PVC material cannot be used in such conditions.
For the concentration units of KF and NaF solutions, we supply our customers with graphite-based concentration equipment, including graphite reboilers, graphite concentration tanks, graphite condensers, and so on.
This post was last edited by Tialoc on 2020-12-25 at 13:23. The key point is that it’s a moving device that is also subject to wear, similar to scraper conveyor equipment; PVC seems to be the suitable material for this use. . . . Are there any better suggestions? What if I use carbon steel inside?
Given cost considerations, I can only use carbon steel; what temperature would be appropriate to achieve?
The thing is, I’m dealing with moving equipment Ah:' (:'(