Method for preparation of 1,4-cyclohexanedimethanol
US11629112B2 · kind B2 · utility
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1References
12Claims
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Inventors
Key dates
| Filing date | Dec 16, 2019 |
| Grant date | Apr 18, 2023 |
| Priority date | — |
| Expiry date | Dec 16, 2039 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J23/626
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The present disclosure relates to a method for preparation of 1,4-cyclohexanedimethanol. According to the present disclosure, two step reduction reactions are conducted using terephthalic acid as starting material, and an isomerization process for increasing the rate of trans isomers of CHDA is introduced therebetween, thereby providing a method capable of stably preparing CHDM with high rate of trans isomers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.