Process for the epoxidation of propene

Details Process for the epoxidation of propene Process for the epoxidation of propene

2005-04-12

2005-04-12

Trinh, Ba K. (Department: 1625)

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C549S535000

Reexamination Certificate

active

06878836

ABSTRACT:
A process for the continuous epoxidation of propene with hydrogen peroxide in the presence of a titanium silicalite catalyst and a methanol solvent, wherein the catalyst is periodically regenerated by washing with a methanol solvent at a temperature of at least 100° C. and the epoxidation reaction is carried out for periods of more than 300 h between two regeneration steps.

REFERENCES:
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patent: WO 0214297 (2002-02-01), None
Chen, L. Y. et al., “Propylene Epoxidation with Hydrogen Peroxide Catalyzed by Molecular Sieves Containing Framework Titanium,” Journal of Molecular Catalysis, 1998, pp. 281-292, vol./Issue 132, Elsevier Science B.V.,Amsterdam, The Netherlands.
Thiele, G. F. et al., “Propylene Epoxidation with Hydrogen Peroxide and Titanium Silicalite Catalyst: Activity, Deactivation and Regeneration of the Catalyst,” Journal of Molecular Cataysis, 1997, pp. 351-356, vol./Issue 117, Elsevier Science B.V., Amsterdam, The Netherlands.
Clerici, M. G. et al., “Synthesis of Propylene Oxide from Propylene and Hydrogen Peroxide Catalyzed by Titanium Silicalite,” Journal of Catalysis, 1991, pp. 159-167, vol./Issue 129, Academic Press, Inc., Duluth, Minnesota, USA.

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