Decolorization of norbornadiene dimers

Chemistry of hydrocarbon compounds – Purification – separation – or recovery – By contact with solid sorbent

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208307, 585824, 585360, 1491094, 60208, C07C 1328

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active

042296129

ABSTRACT:
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 hydrogenation 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.

REFERENCES:
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