Hydrogenation of molten aldehydic dimethyl terephthalate

Details Hydrogenation of molten aldehydic dimethyl terephthalate Hydrogenation of molten aldehydic dimethyl terephthalate

C - Chemistry, Metallurgy

07

C

260/496.7

C07C 69/82 (2006.01) C07C 67/48 (2006.01)

Patent

CA 1042918

HYDROGENATION OF MOLTEN ALDEHYDIC DIMETHYL TEREPHTHALATE Abstract of Disclosures Disclosed is a process for the catalytic hydrogenation of the aldehydic content of molten aldehydic dimethyl terephthalate (DMT) with a catalyst that not only promotes hydrogenation of the aldehyde moiety but also at the temperature of molten DMT tends to promote hydrogenation of the aromatic ring. However, in this process ring hydrogenation is minimized. The process comprises contacting said molten aldehydic DMT with molecular hydrogen and said catalyst for a period of time sufficient for substantial al- dehyde hydrogenation with minimal ring hydrogenation. -1-

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