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US 12,215,076 B2Granted
Method for producing limonene and composition containing limonene
AssigneeSymrise AG
InventorsNikolas Bugdahn, Diego Jaime, Bernhard Rußbüldt, Frank Strüver
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Abstract
The invention relates to a method for producing limonene comprising or consisting of the following steps: (a) providing beta-pinene or a beta-pinene containing starting material: (b) admixing the starting material with a catalytically effective amount of a MWW-type zeolite: (C) heating the reaction mixture to a temperature in the range of between 60 and 100° C.; and optionally (d) separating the limonene or a limonene-enriched fraction from the sump.
Claims9
A process for producing limonene from beta-pinene, comprising the steps of:
- (a) providing beta-pinene or a beta-pinene-containing starting material;
- (b) admixing the starting material with a catalytically active amount of a PSH-3 zeolite to form a reaction mixture;
- (c) heating the reaction mixture to a temperature in the range from about 60° C. to about 100° C. in the presence of a solvent which is an ester of acetic acid and aliphatic C1-C4 alcohol to convert beta-pinene to a product containing limonene;
- and
- (d) separating the limonene or a limonene-enriched fraction from the product containing limonene.
2 more elements
Dependencies are inferred from the claim text.