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Solvent dehydration

2021-01-07View Original

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I would like to ask everyone: how can water with a content of less than 2% be removed from a mixture of toluene and **furan solvents?
Reply #22021-01-07
What attempts have you made, or what methods have you thought of?
Reply #32021-01-08
We produce formulating reagents that use two mixed solvents. After solvent recovery, it remains moist; it cannot be used for further reactions without dehydration
Reply #42021-01-08
First of all, distillation is definitely not an option, as there is an azeotrope present and the water content is low. We deal with specialty reagents that require mixed solvents; when the recovered solvents contain water, they cannot be simply reused. The conventional approach is to use caustic soda or similar substances for dehydration, but we are looking for better methods.
Reply #52021-01-08
Molecular sieves require a gas feed, right?
Reply #62021-01-11
Water can be removed using double-column distillation; if you need it, feel free to contact me at 894436058@qq.com
Reply #72021-01-12
Calcium oxide and sodium hydroxide work too.

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