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Patent Searching and Data


Title:
PRODUCTION PROCESS FOR INDUSTRIAL PRENOL
Document Type and Number:
WIPO Patent Application WO/2022/161163
Kind Code:
A1
Abstract:
The present invention provides a production process for industrial prenol, comprising the following steps: A) performing depolymerization on polyoxymethylene to generate free formaldehyde; and B) contacting the free formaldehyde with basic isobutylene for performing the Prins reaction to obtain prenol, wherein the basic isobutylene consists of isobutylene and an alkaline medium, and a pH value of the basic isobutylene is 7.4-7.8. The raw material of the present invention is basic isobutylene, and the base in basic isobutylene can neutralize formic acid generated by means of the disproportionation of formaldehyde in an addition reaction and effectively prevent a side reaction of the dimerization of isobutylene by which dimethylhexene and trimethylcyclopentane are generated, thereby improving the chroma of a prenol product to yield colorless and transparent prenol.

Inventors:
WANG JIQUN (CN)
LIU SHIJIE (CN)
Application Number:
PCT/CN2022/071497
Publication Date:
August 04, 2022
Filing Date:
January 12, 2022
Export Citation:
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Assignee:
TIAN JIN AN DE SHENG SCIENCE TECH SERVICE CO LTD (CN)
International Classes:
C07C29/38; C07C47/045; C07C33/025
Foreign References:
CN112430178A2021-03-02
CN103254036A2013-08-21
CN106414385A2017-02-15
CN102060667A2011-05-18
CN104788287A2015-07-22
CN107614464A2018-01-19
Attorney, Agent or Firm:
UNITALEN ATTORNEYS AT LAW (CN)
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