Reactor configuration for alkylene oxide production process

C - Chemistry – Metallurgy – 07 – D

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260/372.3

C07D 301/19 (2006.01) C07D 303/04 (2006.01)

Patent

CA 1278305

68878-28 REACTOR CONFIGURATION FOR ALKYLENE OXIDE PRODUCTION PROCESS ABSTRACT OF THE DISCLOSURE The invention relates to a method of preparing an alkylene oxide compound comprising reacting an olefinically unsaturated compound in the presence of a molybdenum catalyst with an organic hydroperoxide in a series of continuous stirred tank reactors in more than one stage in which the mole of olefin to hydroperoxide at no point in any of said reactors exceeds 3.0:1 and maintaining more than 60 wt. % of polar components in the reaction medium in each of said reactors. Extremely low productions of olefin oligomers, the most troublesome by- products, can be achieved with this technique. Surprisingly, high alkylene oxide concentrations, selectivities and yields may also be achieved together with high hydroperoxide conversions and high molybdenum catalyst recoveries, all simultaneously.

483718

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