Process for production of a carboxylic acid/diol mixture...

C - Chemistry – Metallurgy – 08 – G

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C08G 63/78 (2006.01) C08G 63/183 (2006.01) C07C 51/47 (2006.01)

Patent

CA 2516567

The present invention relates to a process by which a carboxylic acid/diol mixture is obtained from a carboxylic acid/solvent slurry without isolation of a substantially dry carboxylic acid solid. More specifically, the present invention relates to a process by which a terephthalic acid/ethylene glycol mixture is obtained from a terephthalic acid/solvent slurry without isolation of a substantially dry terephthalic acid solid.

La présente invention concerne un procédé de production d'un mélange de diol et d'acide carboxylique à partir d'une boue de solvant et d'acide carboxylique sans isolation d'un solide d'acide carboxylique sensiblement sec. Plus spécifiquement, ladite invention se rapporte à un procédé de production d'un mélange d'acide téréphtalique et d'éthylène glycol à partir d'une boue de solvant et d'acide téréphtalique sans isolation d'un solide d'acide téréphtalique sensiblement sec.

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