Method for producing propylene oxide

Details Method for producing propylene oxide Method for producing propylene oxide

2011-01-04

2011-01-04

Andres, Janet L (Department: 1625)

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C549S531000, C502S242000

Reexamination Certificate

active

07863467

ABSTRACT:
The present invention relates to a method for producing propylene oxide, characterized in that peroxide is reacted with propylene in the presence of a titanosilicate catalyst which has an X-ray diffraction pattern of the values indicated below and is represented by the formula.in-line-formulae description="In-line Formulae" end="lead"?xTiO2·(1−x)SiO2in-line-formulae description="In-line Formulae" end="tail"?(In the formula, x denotes a numerical value of 0.0001 to 0.1.)X-ray diffraction patterns(interplanar spacing of lattice d/Å)13.2±0.612.3±0.311.0±0.39.0±0.36.8±0.33.9±0.23.5±0.13.4±0.1.

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Fan, Weibin et al., “A Titanosilicate That Is Structurally Analogous to an MWW-Type Lamellar Precursor”, Angew. Chem. Int. Ed., 2004, vol. 43, pp. 236-240.
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Wu, Peng et al., “Preparation of Ti-MWW and specificity as liquid phase oxidation catalyst”, Skokubai, Catalysis & Catalysis, 2001, vol. 43, pp. 158-160.
Wu, Peng et al., “Preparation of B-free Ti-MWW through reversible structural conversion”, Chem. Comm., 2002, pp. 1026-1027.
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Wu et al., “Improvement of Activity of Ti-MWW Catalyst by Post Treatment”; Catalysts & Catalysis, Mar. 2003, vol. 45, No. 2, pp. 107-110, with Translation (13 pgs.).

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