One-step synthesis of methyl t-butyl ether from t-butanal...

C - Chemistry – Metallurgy – 07 – C

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C07C 43/04 (2006.01) C07C 41/01 (2006.01) C07C 41/09 (2006.01)

Patent

CA 2128907

ONE-STEP SYNTHESIS OF METHYL t-BUTYL ETHER FROM t-BUTANOL USING PENTASIL ZEOLITE CATALYSTS (D#81,270 -F) ABSTRACT OF THE DISCLOSURE Disclosed is a process for preparing alkyl tertiary alkyl ethers in one step which comprises reacting tert-butanol and a C1-C4 primary alcohol in the presence of a catalyst consisting essentially of a pentasil zeolite having a silica/alumina ratio of 50-150, optionally with a binder at a temperature of about 80° to 200°C and atmospheric pressure to about 1000 psig, wherein when the temperature is in the operating range above 140°C, the product comprises a two-phase mix of a MTBE or ETBE and isobutylene product-rich phase and a heavier aqueous primary alcohol-rich phase.

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