November 25, 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.

CAPLUS COPYRIGHT 2013 ACS

Patent Number: US 8552239
Title: Process for production of olefins
Inventor(s): Ohkubo, Tsuneyuki; Fujiwara, Kenji; Fujita, Terunori; Ishibashi, Masayasu
Patent Assignee(s): Mitsui Chemicals, Inc., Japan
Source: PCT Int. Appl., 29pp. CODEN: PIXXD2
Language: Japanese

Abstract:
Provided is a novel process for the prodn. of olefins, whereby it is possible to establish an industrially practical process for obtaining an olefin in a single step by reacting a ketone directly with H, in particular, a novel process for the prodn. of olefins, whereby propylene can be obtained with a high selectivity by direct reaction of acetone with H.  The process for the prodn. of olefins comprises reacting a ketone with H in the presence of both at least one dehydration catalyst and a Ag-contg. catalyst, said dehydration catalyst being selected from among: metal oxide catalysts contg. Group 6 elements; zeolite; alumina; and heteropolyacid salts which are each prepd. by replacing part or the whole of the protons of a heteropolyacid by metal cations.

Please note:  Abstracts and Titles for patent records in CAplus are routinely enhanced to better describe the claimed invention.

 View the full-text here.

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