Method for manufacturing furan-2,5-dicarboxylic acid (FDCA) from a salt solution
The invention pertains to a method for manufacturing furan-2,5-dicarboxylic acid (FDCA) by converting a furan-2,5-dicarboxylate salt (MFDC) into furan-2,5-dicarboxylic acid (FDCA), comprising the steps of combining an aqueous solution of MFDC with a concentration of at least 5 wt.% with an inorganic...
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Main Authors | , |
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Format | Patent |
Language | English |
Published |
28.09.2017
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Subjects | |
Online Access | Get full text |
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Summary: | The invention pertains to a method for manufacturing furan-2,5-dicarboxylic acid (FDCA) by converting a furan-2,5-dicarboxylate salt (MFDC) into furan-2,5-dicarboxylic acid (FDCA), comprising the steps of combining an aqueous solution of MFDC with a concentration of at least 5 wt.% with an inorganic acid (HY), to form a reaction mixture comprising solid FDCA in a concentration of 1-15 wt.% in a solution of a salt resulting from the cation of the furan-2,5-dicarboxylate salt and the anion of the inorganic acid (MY solution), removing solid FDCA from the reaction mixture in a solid/liquid separation step, and providing part of the MY solution resulting from the solid/liquid separation step to the step of combining MFDC with HY. The step of providing part of the MY salt solution resulting from the solid/liquid separation step to the step of combining MFDC with HY makes it possible to obtain a stable and economic process which results in an FDCA product with good quality, and obtained in high yield. |
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Bibliography: | Application Number: AU20160232142 |