ORGANIC MATERIAL LIQUID DEHYDRATION METHOD

Provided is a method for processing a feed solution, which is an organic solution containing a small amount of water, using forward osmosis under a non-heated condition to obtain a dehydrated feed solution without causing degradation or change in quality of a solute. This method is for dehydrating a...

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Bibliographic Details
Main Authors OSAKI, Takahiro, SUZUMURA, Keitaro, KATAYAMA, Yuji, TAKADA, Ryoichi
Format Patent
LanguageEnglish
French
German
Published 26.06.2024
Subjects
APPARATUS THEREFOR
CHEMISTRY
GENERAL METHODS OF ORGANIC CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
SEPARATION
TRANSPORTING
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Summary:Provided is a method for processing a feed solution, which is an organic solution containing a small amount of water, using forward osmosis under a non-heated condition to obtain a dehydrated feed solution without causing degradation or change in quality of a solute. This method is for dehydrating a feed solution containing a first organic solvent, water, and a first solute, and comprises a dehydration step for bring the feed solution and an organic draw solution containing a second organic solvent into contact with each other through a forward osmosis membrane to obtain a dehydrated feed solution that has the moisture content thereof reduced to less than 1 mass% through dehydration. In one mode, the initial moisture content of the feed solution in the dehydration step is not less than 1 mass% but less than 30 mass%, and the initial moisture content of the organic draw solution is less than the initial moisture content of the feed solution.
Bibliography:Application Number: EP20220739502