US Patent:
20110112335, May 12, 2011
Inventors:
Srinivasa Godavarthy - Spring TX, US
Wei-Yang Su - Spring TX, US
Ralph M. DiGuilio - Spring TX, US
Stan Harville - The Woodlands TX, US
Matthew W. Forkner - Spring TX, US
Assignee:
HUNTSMAN PETROCHEMICAL LLC - The Woodlands TX
International Classification:
C07C 29/80
C07C 31/20
Abstract:
The present invention relates to a process for producing an odorless and colorless industrial grade propylene glycol from glycerol obtained during the manufacturing of biodiesel. The process includes hydrogenating the glycerol to form a hydrogenated product, distilling the hydrogenated product to form a glycol product, and contacting the glycol product with a treatment bed. The propylene glycol may be used in various industrial and consumer applications and products such as personal care products.