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Dow Works on Renewable PG Process

12:22 PM MDT | July 26, 2007 | Chemical Week Editorial Staff

Dow Chemical says that it is developing a process to produce propylene glycol (PG) from glycerin—a by-product of biodiesel production. Dow expects to have limited commercial quantities available in mid-2007. Dow Haltermann Custom Processing (DHCP), a Dow Chemical business, has been contracted to produce the new PG, trade named Propylene Glycol Renewable (PGR). DHCP will conduct pilot trials and eventually full-scale production at its Houston plant, where it produces biodiesel. “Demand for PG continues to rise, accompanied by a parallel interest in...

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