Staged epoxidation of propylene with recycle

Details Staged epoxidation of propylene with recycle Staged epoxidation of propylene with recycle

C - Chemistry, Metallurgy

07

D

C07D 303/04 (2006.01) C07C 29/00 (2006.01) C07C 31/12 (2006.01) C07D 301/19 (2006.01)

Patent

CA 2127415

STAGED EPOXIDATION OF PROPYLENE WITH RECYCLE (Docket No 81,153-F) ABSTRACT OF THE DISCLOSURE In reacting tertiary butyl hydroperoxide in solution in tertiary butyl alcohol with propylene to produce propyl-n- oxide and tertiary butyl alcohol in a reactor system com- prising a first isothermal segment and a second adiabatic segment about 60 to 80 wt% of the tertiary butyl hydroperoxide is converted in the isothermal segment to provide an interme- diate reaction mixture, a recycle stream comprising about 25 to 100 wt. % of the combined weight of the propylene and the tertiary butyl alcohol solution is removed from the intermedi- ate reaction mixture and recycled to the first isothermal segment and the remainder of the intermediate reaction mixture is passed through the adiabatic segment where an additional 20 to 40 wt. % of the tertiary butyl hydroperoxide is converted.

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