June 10, 2013

CAS databases provide millions of journal article references from more than 10,000 major scientific journals worldwide, patent and patent family references from 63 patent authorities around the world, and other reputable web sources.

The following patent record is from the CAplusSM database.


Patent Number: US 8440846
Title: Direct epoxidation catalyst
Inventor(s): Dang, Vu A.; Grey, Roger A.; Miller, Jay F.; Mandimutsira, Beavern S.
Patent Assignee(s): Lyondell Chemical Technology, L.P., Germany
Source: U.S. Pat. Appl. Publ., 6pp.; Chemical Indexing Equivalent to 156:421942 (WO)
Language: English

The invention is a process for epoxidizing an olefin with hydrogen and oxygen in a solvent comprising acetonitrile in the presence of an quinone-acid salt and a catalyst comprising a titanium zeolite and a noble metal.  The process results in higher productivity and improved selectivity to propylene oxide from hydrogen and oxygen, as compared to processes that use only a quinone.

 View the full-text here.

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