US 9,809,518 B2
Feed sources for butanediol production processes
Daniel F. White, Houston, TX (US); Roberto Alvarez, Houston, TX (US); and Beaven S. Mandimutsira, Sugar Land, TX (US)
Assigned to Lyondell Chemical Technology, L.P., Houston, TX (US)
Filed by Lyondell Chemical Technology, L.P., Houston, TX (US)
Filed on Nov. 16, 2016, as Appl. No. 15/352,851.
Claims priority of provisional application 62/258,189, filed on Nov. 20, 2015.
Prior Publication US 2017/0144951 A1, May 25, 2017
Int. Cl. C07C 45/50 (2006.01); C07C 29/00 (2006.01); C07C 29/141 (2006.01)
CPC C07C 29/141 (2013.01) [C07C 45/50 (2013.01)] 11 Claims
 
1. A process comprising:
contacting an allyl alcohol stream with a hydroformylation catalyst comprising rhodium phosphate at a feed concentration of 0.3-3.3 wt. % in the presence of a gas stream comprising carbon monoxide and hydrogen under hydroformylation conditions sufficient to form a hydroformylation product stream comprising a butanediol intermediate, wherein the allyl alcohol stream comprises less than 98 wt. % allyl alcohol.