Methods for suppressing isomerization of olefin metathesis products
US9133416B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 22, 2011 |
| Grant date | Sep 15, 2015 |
| Priority date | — |
| Expiry date | Jun 16, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S502/52
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A method for suppressing isomerization of an olefin metathesis product produced in a metathesis reaction includes adding an isomerization suppression agent to a mixture that includes the olefin metathesis product and residual metathesis catalyst from the metathesis reaction under conditions that are sufficient to passivate at least a portion of the residual metathesis catalyst. The isomerization suppression agent includes (i) a salt and/or an ester of a phosphorous oxo acid, and/or (ii) a derivative of the phosphorous oxo acid in which at least one P—H bond has been replaced by a P—C bond, and/or (iii) a salt and/or an ester of the derivative. Methods of refining natural oils are described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.