Preparation method of branched chain fatty alcohol

By using reusable transition metal supported catalysts and N2 bubbling process, the problems of high equipment requirements and large wastewater volume in the synthesis of branched fatty alcohols have been solved, achieving the effects of simplified process, increased yield and environmentally friendly production.

CN121850832APending Publication Date: 2026-04-14SUZHOU ELECO CHEM IND
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-12-31
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

Existing branched fatty alcohol synthesis processes require the use of strong bases, resulting in high equipment requirements, complex post-treatment, non-reusable catalysts, increased wastewater volume, and complex and environmentally unfriendly processes.

Method used

A reusable transition metal supported catalyst and N2 bubbling process are used to prepare branched fatty alcohols by using a supported catalyst composed of silicon-magnesium support and transition metals through reflux water separation, avoiding the neutralization and washing process, simplifying the process and improving the yield.

Benefits of technology

The process has been simplified, energy consumption has been reduced, equipment requirements have been reduced, catalyst reuse has been enabled, yield has been increased, and the process is more environmentally friendly, reducing wastewater discharge.

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Abstract

The invention discloses a preparation method of branched chain fatty alcohol, which comprises the following steps: adding raw materials fatty alcohol and a supported catalyst into a reaction bottle, stirring, matching with an N2 bubbling reflux water distribution device, gradually heating to 160 DEG C, carrying out reflux water distribution, and cooling to end the reaction when the water distribution amount of the water distribution device is observed to reach 80% of the theoretical water distribution amount, and filtering at room temperature to recover the supported catalyst, and transferring the filtered filtrate into a reaction bottle to remove excess raw material fatty alcohol under negative pressure, thereby obtaining the target product branched chain fatty alcohol. According to the method, a reusable catalyst and an N2 bubbling process are adopted, so that various defects of the prior art are improved, the process is greatly simplified, and the yield is also greatly improved.
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