TWI746724B

Provided is a method for producing C4 dicarboxylic acid crystals having high oil absorption. This method for producing C4 dicarboxylic acid crystals comprises a step in which C4 dicarboxylic acid crystals are precipitated from an aqueous solution containing a C4 dicarboxylic acid or salt thereof in...

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Bibliographic Details
Main Authors OBUNAI, RYO, NOBA, MASAHIRO, KOYAMA, SHINGO, IRIE, YUTAKA
Format Patent
LanguageChinese
Published 21.11.2021
Subjects
ACYCLIC OR CARBOCYCLIC COMPOUNDS
CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
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Summary:Provided is a method for producing C4 dicarboxylic acid crystals having high oil absorption. This method for producing C4 dicarboxylic acid crystals comprises a step in which C4 dicarboxylic acid crystals are precipitated from an aqueous solution containing a C4 dicarboxylic acid or salt thereof in the presence of an anionic polymer. The mass ratio of the anionic polymer content to the C4 dicarboxylic acid content in the aqueous solution is 5 x 10-4 to 0.5.
Bibliography:Application Number: TW20176143091