Decolorization of norbornadiene dimers

Details Decolorization of norbornadiene dimers Decolorization of norbornadiene dimers

C - Chemistry, Metallurgy

07

C

260/716.5

C07C 13/64 (2006.01) C07C 5/29 (2006.01) C07C 7/12 (2006.01)

Patent

CA 1120065

ABSTRACT OF THE DISCLOSURE The removal of color bodies from an olefinic or saturated endo-endo hexacyclic homodimer of norbornadiene or mixtures thereof is accomplished by the use of a serpentine clay. Also acid bentonite clay or a montmorillonite clay can be used to remove the color bodies from the saturated dimer. The saturated dimer has a high density and a high heat of combustion making it useful as a missile fuel. Removal of the color bodies avoids possible catalyst poisoning in the hydro- genation of the olefinic to the saturated dimer. Also removal of the color bodies from the saturated dimer eliminates the possible problem of a material precipitating out on engine turbine blades and causing maintenance or operational problems.

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