Isomerization of dimethylcyclohexanedicarboxylate

Details Isomerization of dimethylcyclohexanedicarboxylate Isomerization of dimethylcyclohexanedicarboxylate

1992-10-23

1993-07-27

Shippen, Michael L.

Organic compounds -- part of the class 532-570 series

Organic compounds

Carboxylic acid esters

C07C 6974

Patent

active

052312186

ABSTRACT:
Provided is a fixed bed heterogeneous catalyst that promotes the isomerization of cis/trans-DMCD to trans-DMCD in economical fashion with short reaction times and in high purity. The catalyst is preferably H.sub.3 PO.sub.4 on a metal oxide, said metal oxide selected from a group consisting of ZrO.sub.2, TiO.sub.2, Al.sub.2 O.sub.3, and HfO.sub.2, or a tungsten-modified ZrO.sub.2.

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