Preparation method of soybean oil base polyhydric alcohol

By directly using soybean oil and a solid strong acid catalyst to react under specific conditions, the problem in the existing technology that soybean oil-based polyols need to be epoxidized first in the production of soybean oil-based polyols is solved, and the effect of simplifying the process and reducing costs is achieved. Directly from soybean oil to prepare efficient biomass materials.

CN108250073AInactive Publication Date: 2018-07-06YIWU QUANCE NEW MATERIAL CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
YIWU QUANCE NEW MATERIAL CO LTD
Filing Date
2018-03-10
Publication Date
2018-07-06
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

⚠Technical Problem

The existing production method of soybean oil-based polyols requires soybean oil to be epoxidized first, which increases the production cost and complexity of the steps.

⚗Method used

Soybean oil is directly used to react with a solid strong acid catalyst under certain conditions. By adding hydrogen peroxide and lower alcohol, a one-step method is achieved to prepare soybean oil-based polyols, which simplifies the production process and reduces the amount of hydrogen peroxide.

🎯Benefits of technology

It reduces production costs, simplifies the process, prepares efficient biomass materials directly from soybean oil, reduces epoxidation steps, and improves production efficiency.

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Abstract

The invention relates to a preparation method of soybean oil base polyhydric alcohol, in particular to a method for preparing soybean oil base polyhydric alcohol by directly using soybean oil. The soybean oil diluted by using a solvent reacts with hydrogen peroxide with the weight percentage being 30% for 2-5 hours at the temperature of 60-70 DEG C under catalysis of a catalyst with the weight percentage being 3-5%; vacuum distillation is conducted after the reaction is ended, and the solvent is evaporated; then low alcohol is added in a reactor to be subjected to a reaction for 4-6 hours under the pressure of 0.3-0.4 MPa and at the temperature of 70-80 DEG C, then the reaction is stopped, and the soybean oil base polyhydric alcohol is obtained. The method saves the using amount of hydrogen peroxide, reduces the post-treatment steps, and simplifies the production procedures, and accordingly the product cost is declined directly.
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