High-temperature resistant sulfonated aromatic polyether ketone cation exchangers and sulfonated poly (phenylene sulfide) cation exchangers as catalysts at reaction temperature above 150° C
AssigneeHoechst Research & Technology
InventorsWerner Sievers, Ulrich Daiminger, Harald Bönsel, Wolfgang Bauer, Joachim Semel
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Abstract
High-temperature resistant sulfonated aromatic polyether ketone cation exchangers and sulfonated poly(phenylene sulfide) cation exchangers are revealed as catalysts for various reactions at reaction temperatures above 150° C. The invention relates to the use of sulfonated aromatic polyether ketone cation exchangers and sulfonated poly(phenylene sulfide) cation exchangers as catalysts for such reactions. The preferred reaction is esterification to make octyl palmitate.
Claims5
A method of catalyzing a chemical reaction, comprising esterification at a temperature in the range of 20-300° C., which comprises,
- adding to the reactants of the reaction a cation exchange resin catalyst in acidic form selected from the group consisting of an aromatic polyether ketone cation exchanger and a sulfonated poly(phenylene sulfide) cation exchanger.
The method as defined in claim 4 wherein the reaction is an esterification reaction which involves reacting palmitic acid with octanol to obtain octyl palmitate.
Dependencies are inferred from the claim text.