Method of hydrogenating iso-.alpha. acids in a buffered solution
US6303824A · kind A · utility
3Cited by
9References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 11, 1999 |
| Grant date | Oct 16, 2001 |
| Priority date | — |
| Expiry date | Nov 11, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC12C9/025
- WIPO fieldFood chemistry
- WIPO sectorChemistry
Abstract
A method of preparing tetrahydroiso-.alpha.-acids from iso-.alpha.-acids is disclosed wherein the reaction medium is a buffered, aqueous alcoholic solution. The method can also employ up to 85% w/w spent hydrogenation catalyst. The method advantageously avoids the formation of undesirable side products.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.