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Green glycol

By Chemical Engineering |

Last month, the Dow Chemical Co. (Midland, Mich.; edlinks.chemengonline.com/6894-546) introduced Propylene Glycol Renewable (PGR), a monopropylene glycol that is made from glycerin generated during the production of biodiesel. Dow is conducting PGR trials with customers and anticipates having limited commercial quantities available later this year. PGR is suitable for applications such as unsaturated polyester resins, aircraft deicers, antifreeze and laundry detergents. Dow has contracted with its business unit Dow Haltermann Custom Processing (DHCP), to produce PGR from the crude glycerin byproduct of biodiesel production. DHCP will conduct pilot trials and, eventually, full-scale production of PGR at its Houston, Texas, site.
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