August 15, 2011

CAS databases provide millions of journal article references from more than 10,000 major scientific journals worldwide, patent and patent family references from 61 patent authorities around the world, and other reputable web sources.

The following patent record is from the CAplusSM database.


Patent Number: US 7973199
Title: Energy saving process for production of acetone from bioethanol with high efficiency
Inventor(s): Masuda, Takao; Tago, Teruoki; Yanase, Tetsuya; Tsuboi, Hirokazu
Patent Assignee(s): Metawater Co., Ltd., Japan; National University Corporation Hokkaido University
Source: PCT Int. Appl., 16pp.; Chemical Indexing Equivalent to 151:361545 (JP) CODEN: PIXXD2
Language: Japanese

Aqueous ethanol produced by using a biomass as a raw material is heated at 400 degree C or higher (preferably 450-550 degrees) in the presence of a Zr-Fe catalyst to produce acetone. The Zr-Fe catalyst preferably contains 5-10% zirconium.

View the full-text U.S. patent from USPTO.

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