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Chementator Briefs

By Gerald Ondrey |

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Direct route to PG Dow Inc. (Midland, Mich.; www.dow.com) and Evonik Industries AG (Essen, Germany; www.evonik.com) have entered into an exclusive technology partnership to develop a new process to make propylene glycol (PG). The key to the so-called Hyprosyn process is a catalytic system developed by Evonik researchers that allows for the direct synthesis of PG from propylene and hydrogen peroxide, in a process offering high yield and comparatively low energy consumption. A pilot plant is to be constructed at the Evonik site in Hanau, Germany by the end of 2020, with large-scale technical implementation to follow a few years later. In the traditional process, propylene oxide (PO) is converted to PG using water. According to Evonik, the Hyprosyn technology offers several advantages over that process: it is expected to consume significantly less energy while providing a higher yield; the Hyprosyn process combines all reaction steps in a single reactor, eliminating the need for investment in additional PO capacity; and only H2O2 and propylene are processed as feedstock.
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