Dicarboxylic acid crystallizates

Details Dicarboxylic acid crystallizates Dicarboxylic acid crystallizates

C - Chemistry, Metallurgy

07

C

C07C 51/50 (2006.01) C07C 51/43 (2006.01) C07C 55/14 (2006.01)

Patent

CA 2280592

The invention relates to a method of producing dicarboxlic acid crystallizates from a solution containing at least one organic dicarboxylic acid, wherein at least one anionic polyelectrolyte with a molar mass of at least 2.000 is added to the solution before or during crystallization.

L'invention concerne un procédé de préparation de cristallisats d'acide dicarboxylique à partir d'une solution contenant au moins un acide dicarboxylique organique. Au moins un polyélectrolyte anionique de masse molaire d'au moins 2.000 est ajouté à la solution avant ou pendant la cristallisation.

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