Separation of conjugated linoleic acids by azeotropic distillation
US6019874A · kind A · utility
1Cited by
4References
1Claims
0Family size
Inventors
Key dates
| Filing date | Jan 19, 1999 |
| Grant date | Feb 1, 2000 |
| Priority date | — |
| Expiry date | Jan 19, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C51/46
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Conjugated linoleic acids cannot be separated by distillation or rectification because of the closness of their boiling points. Conjugated linoleic acids can be separated by azeotropic distillation. Effective agents are butyraldehyde, butyl ether and 1-methyl-2-pyrrolidinone.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.