Transesterification process using lanthanum compound catalysts

Details Transesterification process using lanthanum compound catalysts Transesterification process using lanthanum compound catalysts

C - Chemistry, Metallurgy

07

C

C07C 67/03 (2006.01) C07C 69/82 (2006.01)

Patent

CA 2322281

This invention relates to an improved transesterification process for the preparation of bis(3-hydroxypropyl) terephthalate monomer from 1,3-propanediol and a dialkyl terephthalate using a lanthanum compound transesterification catalyst.

L'invention se rapporte à un procédé amélioré de transestérification destiné à la préparation d'un monomère de bis(3-hydroxypropyl) téréphtalate à partir de 1,3-propanediol et d'un téréphtalate de dialkyle au moyen d'un catalyseur de transestérification à base de composés de lanthane.

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