A preparation method of monoglyceride of oleic acid and its product
By using zeolite-p-toluenesulfonic acid catalyst in sulfolane and N,N-dimethylformamide solvents and combined with tertiary molecular distillation treatment, the problem of low yield and purity of fatty acid monoglyesters was solved, and the preparation and stability of high-purity monoglyesters of oleic acid was achieved.
CN119977803BActive Publication Date: 2025-08-26GUANGDONG KEVIN BIOTECHNOLOGY CO LTD +1
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Patent Information
- Application Number
- CN202510472530.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-16
- Publication Date
- 2025-08-26
- Estimated Expiration
- 2045-04-16
AI Technical Summary
Technical Problem
In the prior art, the yield and purity of fatty acid monoglyesters are low, the content of fatty acid monoglyesters in the chemical synthesis method is insufficient, the enzymatic method is high and it is not suitable for large-scale production, and the reaction conditions are strict.
Method used
Using glycerol and oleic acid as raw materials, zeolite-p-toluenesulfonic acid catalyst was added in the presence of sulfolane and N,N-dimethylformamide for reaction, and treated by tertiary molecular distillation to obtain high-purity monoglyceride.
Benefits of technology
The yield and purity of monoglycerides of oleic acid were significantly improved, reaching 95%-99%, and the storage stability of the product was improved by adding antioxidants.
✦ Generated by Eureka AI based on patent content.
Abstract
The present invention provides a preparation method of monoglyceride of oleic acid and its product, relating to the technical field of ester compound synthesis. The preparation method of the present invention comprises the following steps: (1) mixing glycerol, oleic acid and a solvent, adding a zeolite-p-toluenesulfonic acid catalyst to react, and obtaining an initial monoglyceride of oleic acid mixture; the molar ratio of glycerol to oleic acid is 1-2.5:1; the solvent is sulfolane and N,N-dimethylformamide in a mass ratio of 8:1-5; the ratio of the total mass of glycerol and oleic acid to the mass of the solvent is 4:1-3; (2) subjecting the initial monoglyceride of oleic acid mixture to a three-stage molecular distillation treatment: 100-200 Pa, 180-220°C, 50-80 Pa, 180-220°C, and 0-10 Pa, 180-230°C to obtain monoglyceride of oleic acid. The method of the present invention can improve the yield and purity of monoglyceride of oleic acid; mixing monoglyceride of oleic acid with a specific antioxidant can significantly improve the antioxidant properties of the product.
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