Abstract
The epoxidation of limonene with hidrogen peroxide was studied over zeolite Tibeta (a large pore material) and heteropoly acids on carbono and alumina supported. PW11/C was catalyst the best tested.
Highlights
In the last years, the increase in environmental restrictions lead to the search for new oxydant systems to replace the traditionals in order to avoid the generation of polluting effluents.The terpenes containing oxygen are very important to be used in the fragrances production; in our country we have great quantities of limonene and we studied its oxydation to 1,2-epoxilimonene using a heterogeneous catalysts system.In a previous paper the pillared clays from mixed oligomers of Si-Ti [1] were studied, in this paper the results using supported heteropolyacids (HPA) an zeolites Ti-beta are shown
The HPA were prepared from phosphomolybdic acid (PMA) and tunstophosphoric acid (TPA) and impregnated on alumina (A) or carbon (C) to fill the pores with solution in ethanol-water [2]
PW11 refers to a lacunar phase supported on C
Summary
The increase in environmental restrictions lead to the search for new oxydant systems to replace the traditionals in order to avoid the generation of polluting effluents.The terpenes containing oxygen are very important to be used in the fragrances production; in our country we have great quantities of limonene and we studied its oxydation to 1,2-epoxilimonene using a heterogeneous catalysts system.In a previous paper the pillared clays from mixed oligomers of Si-Ti [1] were studied, in this paper the results using supported heteropolyacids (HPA) an zeolites Ti-beta are shown. Abstract: The epoxidation of limonene with hidrogen peroxide was studied over zeolite Tibeta (a large pore material) and heteropoly acids on carbono and alumina supported. The increase in environmental restrictions lead to the search for new oxydant systems to replace the traditionals in order to avoid the generation of polluting effluents.
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