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US 9,855,513 B2Granted
Method for producing concentrated aqueous solution of organic compound
AssigneeKao Corporation
InventorsMasanori Namba, Junnosuke Saito
Life of this patent
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Abstract
After an aqueous solution containing, at a concentration of less than 40% by mass, an organic compound having two or more hydrophilic groups in a molecule is adjusted to contain the organic compound at a concentration of equal to or greater than 40% by mass, the aqueous solution whose organic compound concentration is adjusted to equal to or greater than 40% by mass is irradiated with an ultrasonic wave to atomize water, and is dehydrated and concentrated.
Claims17
A method for producing a concentrated aqueous solution of an organic compound, comprising:
- a concentration adjustment step comprising adjusting an aqueous solution containing the organic compound at a concentration of less than 40% by mass to contain the organic compound at a concentration of equal to or greater than 40% by mass, the organic compound having two or more hydrophilic groups in a molecule;
- and
- a dehydration concentration water-removal step comprising irradiating the aqueous solution whose organic compound concentration is adjusted to equal to or greater than 40% by mass at the concentration adjustment step with an ultrasonic wave to atomize water.
Dependencies are inferred from the claim text.