IP Verse

Ethylene Oxide Catalyst With Optimized Cesium Content

Patent No. EP2391447 (titled "Ethylene Oxide Catalyst With Optimized Cesium Content") was filed by Scientific Design Company Inc. on Jan 4, 2010. The application was issued on Jul 13, 2016.

Patent Summary

Silver-based ethylene oxide catalyst with a bimodal pore structure to stop selectivity loss at high temperatures. The support uses two distinct pore sizes: small ones (0.01–5 µm) and large ones (5–30 µm), each making up at least 50% of the total volume. This mix lets reactants flow better while keeping active sites accessible. The catalyst also contains silver, rhenium, and 350–700 ppm cesium. This setup lets the reactor run hotter without losing efficiency, cutting startup time and operating costs compared to older single-pore designs.

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Patent Oppositions (2)

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CompanyOpposition DateRepresentative
BASFApr 13, 2017HERZOG
SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJApr 12, 2017SHELL LEGAL SERVICES

Dossier Documents

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  • Date

    Description

EP2391447

SCIENTIFIC DESIGN COMPANY INC.
Application Number
EP10736166A
Filing Date
Jan 4, 2010
Status
Revoked
Dec 10, 2021
Publication Date
Jul 13, 2016
External Links
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