Purification of high-boiling-point substances
Thread Content
:(Is it useful to use a plate tower for negative-pressure purification?) What are the things to note? Compared to packed towers, which one is better?
It’s not very specific – do your high-boiling substances tend to cause clogs? Is it because of the high boiling point that there is a negative pressure?
You must provide detailed information about the components of the system; it’s meaningless to talk in general terms.
Generally speaking, in cases where the vacuum level is high, or when it deals with thermosensitive systems with restrictions on bottom temperature, a packed tower is more suitable as it results in a lower pressure drop.
Yes, at normal pressure its melting point is over 400 degrees; it’s similar to anthraquinone
If one wants to extract in segments for continuity, it seems a bit difficult with a packing tower
If the physical properties are similar to those of anthraquinones, then using fillers might not be appropriate, as it could lead to clogging issues. If fillers with strong anti-clogging properties are used, the efficiency is likely to suffer as a result