I need help. Experts, is there any large-scale equipment similar to a rotary evaporator?
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Dear experts, rotary evaporators are used in laboratories for vacuum distillation experiments. My substance is in liquid form; after it’s placed in the rotary flask, the solvent is removed from it, leaving a solid residue. As the rotation continues, this solid forms clumps that stick to the walls of the flask, making operations difficult. The only solution is to add solvent to rinse the area and use something to scrape out those clumps. This approach works fine for small-scale experiments, but for industrial-scale applications, I haven’t found an appropriate device. For distillation under vacuum conditions, it would be useful if the equipment had some mechanism similar to a stirrer that can break up the solid residues left after distillation. Such a mechanism would help to promote distillation while also preventing the solids from sticking to the interior of the equipment, as they tend to form clumps after being dried by rotary evaporation. Finally, add a solvent to wash them out, and then proceed with vacuum filtration or centrifugation. Thank you.
It is best that no solids adhere to the inside of the equipment or to the stirrer, as this could prevent the stirrer from rotating or cause blockages in the discharge opening.
Or should we change the post-treatment method from a technical perspective?
Evaporation/crystallization/centrifugation separation equipment, also known as the three-in-one type
Thank you for your answer. Do you mean to evaporate the solvent through evaporation crystallization to cause the solid to precipitate, then add solvent to dissolve it again and proceed with centrifugal separation?
This post was last edited by li*nji on 2018-12-20 at 10:34. A single device with the capability to perform three processes—evaporation/crystallization/separation—in one go. In other words, a device is capable of completing evaporation/crystallization/solid-liquid separation in one go within a certain period of time. In other words, within a sealed tank equipped with stirring functionality, heating, evaporation, concentration, crystallization, and solid-liquid separation can be carried out.
Thank you for your answer\ud83d\ude4f
Film evaporation evaporators or falling film evaporators can be considered