September 2, 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 8492597
Title: Production of propylene glycol from glycerol
Inventor(s): Rabello, Carlos Rene Klotz; Gomes, Marlito Junior; Siqueira, Bernardo Galvao; De Menezes, Raphael Bezerra; Huziwara, Wilson Kenzo; Yamada, Tomas Shinobu; De Oliveira, Ligia Maria Marcareli; Oliveira, Giselle De Carvalho; Candido, William Victor Carlos
Patent Assignee(s): Petroleo Brasileiro S.A., Brazil; Benson, John Everett
Source: PCT Int. Appl., 18pp. CODEN: PIXXD2
Language: Portuguese

The present invention describes a process for the prodn. of propylene glycol from glycerol by hydrogenolysis, in the liq. phase, where the two stages of the reaction take place simultaneously and in one reactor under specified conditions of temp. and pressure, and the effluent from the fixed-bed reactor is led to the subsequent processes of sepn. and purifn. Thus, 1,2-propylene glycol is obtained in 93.52% from glycerol.

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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