Invention Grant
- Patent Title: Process for hydrogenation of isoalpha acids
- Patent Title (中): 异磷酸氢化方法
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Application No.: US09329299Application Date: 1999-06-10
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Publication No.: US06198004B1Publication Date: 2001-03-06
- Inventor: John Paul Maye , Jianping Xu , George Gauthier , Scott W. Weis
- Applicant: John Paul Maye , Jianping Xu , George Gauthier , Scott W. Weis
- Main IPC: C07C4567
- IPC: C07C4567
Abstract:
The invention relates to a process for converting alpha acid and isoalpha acids to tetrahydroisoalpha acid. The process comprises isomerizing an alpha acid to produce isoalpha acid and hydrogenating the isoalpha acid in the presence of a noble metal catalyst wherein, the noble metal catalyst is added incrementally or continuously throughout the hydrogenation step. The invention also relates to tetrahydroisoalpha acids made by the above process.
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