Method for the recovery and purification of maltol
US5221756A · kind A · utility
6Cited by
1References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 21, 1992 |
| Grant date | Jun 22, 1993 |
| Priority date | — |
| Expiry date | Feb 21, 2012 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D309/40
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Pure maltol is recovered from maltol containing mixture by co-distillation with an aliphatic or cylcloaliphatic hydrocarbon or hydrocarbon mixture in which the maltol is substantially insoluble.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.