| PATENT ASSIGNEE'S COUNTRY | USA |
| UPDATE | 10.00 |
| PATENT ASSIGNEE | This data is not available for free |
| PATENT CLAIMS |
In a process for the production of 1,4-butanediol by hydrofor mylation of allyl alc. with CO/H2 gas mixt using a catalyst comprised of rhodium or rhodium compd & a trialkyl phosphi ne having > 2 Me groups; the IMPROVEMENT which compri ses - First carrying out the hydroformylation at 20-80C & 30-100 psig until a predominance of allyl alc. has reacted to form mainly 4-hydroxybutanal - Continuing reaction at more severe conditions of 80-140C & 100-1000 psig to form 1,4-butanediol |
| PATENT PHOTOCOPY | Available on request |
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