Separation of dichlorophenols
US10343965B2 · kind B2 · utility
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17References
20Claims
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Assignee
Inventors
Key dates
| Filing date | May 31, 2016 |
| Grant date | Jul 9, 2019 |
| Priority date | — |
| Expiry date | May 31, 2036 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F2101/36
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Various processes for the separation of a mixture containing dichlorophenols are described. In various aspects, the present invention relates to separation processes that produce an extract enriched in 2,4-dichlorophenol content and an extract enriched in 2,5-dichlorophenol content. The present invention further relates to various processes that integrate with these separation processes, such as a process for producing 3,6-dichloro-2-methoxybenzoic acid (dicamba) or salt or ester thereof or a process for producing 2,4-dichlorophenoxyacetic acid (2,4-D) or salt or ester thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.