Dow Global Technolgoies LLC

Johann Haltermann Limited

Monument Chemical Houston, LLC

Karel Johannes Kriel

Indresh Mathur

David Craig Molzahn

Kenneth A Burdett

William L Gibson

Edward Hirohito Yonemoto

James E McCreight

A process for isomerizing endo-hydrogenated dicyclopentadiene to form the corresponding exo-isomer using a stable, pumpable liquid aluminum halide catalyst which includes steps of providing a first solution containing a hydrogenated dicyclopentadiene compound that is dissolved in a hydrocarbon solvent, adding a cosolvent to the first solution to form a second solution, adding an aluminum halide to the second solution, and isomerizing the hydrogenated dicyclopentadiene compound in the presence of dissolved aluminum halide which acts as a catalyst to produce the corresponding exo-isomer.

Process for producing exo-tetrahydrodicyclopentadiene

The present invention provides an improved hydrogenation processes wherein heat is efficiently managed so that catalyst productivity is optimized. More particularly, in the processes of the present invention, a nonaqueous solvent is added to a reactant to provide a nonaqueous solvent/reactant mixture that can act as a heat sink and absorb at least a portion of the heat generated within the reactor. Desirably, a reaction product, or a solvent with a minimal number of hydroxyl groups, is utilized so that the formation of unwanted byproducts can be minimized.

Hydrogenation process

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Houston, TX, United States of America

Karel Johannes Kriel