Hydrogen fluoride recovery
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Dear forum members: Our company has a mixture of hydrogen fluoride and hydrogen chloride at a rate of 1 ton per hour that needs to be separated in order to recover hydrogen fluoride. Is it possible to recover it through direct condensation? The boiling point of hydrogen fluoride is 19 degrees; what temperature is suitable for a refrigerant? Those from design institutes can contact me directly. 18554697815 Feng
Hydrogen fluoride has a very high boiling point (compared to other hydrogen halides), allowing it to be recovered by condensation. However, due to the special corrosiveness and toxicity of hydrogen fluoride, it is estimated that a professional design firm will be necessary. It’s not the design firm that should get in touch with you; rather, you should take the initiative to approach them. This task of yours might represent a significant technical overhaul for you, but for a professional design firm, it could just be a minor task. It’s you who is asking for help, it’s not the design institute that is asking you, right?
You’re absolutely right; larger design firms with relevant experience don’t take on this kind of work: lol
The distillation unit used in R-22 production is very similar to yours
Is there a distillation unit in R-22 production, and is hydrogen chloride also needed to be separated?
Yes, but the situation you described lacks many necessary conditions.
Separate condensation is feasible, but the recovery rate isn’t high, right?
It’s necessary to check what the level of hydrogen fluoride is The lower the content, the lower the temperature required for condensation; however, if it’s too low, it becomes uneconomical. It is recommended to separate first and then recycle.
50% for each; recycling it is still very valuable
Graphite condensers can be used, but they are a bit expensive; P
Oh, is the price for carbon steel calculated based on weight or on the square of the area?