Search Results - propylene glycol

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Condensed Phase Catalytic Hydrogenation of Lactic Acid to Propylene Glycol

IntroductionPropylene glycol is a nontoxic chemical used in polymers production, as a nontoxic antifreeze, and in food, drink, cosmetic, and pharmaceutical applications. Propylene glycol is currently made commercially by high pressure and high temperature hydrolysis of propylene oxide. Description of TechnologyMichigan State University’s invention...
Published: 9/21/2011   |   Inventor(s): Dennis Miller, Zhigang Zhang, James Jackson
Keywords(s): Biomass, Catalysis, Catalyst, Lactic Acid, Propylene Glycol Category(s): Chemicals, Materials

Catalysts and Process for Hydrogenolysis of Sugar Alcohols to Polyols

Description of TechnologyMetal-catalyzed cleavage of polyols (MCCP) is a novel technology for preparing low molecular weight polyols such as ethylene glycol and propylene glycol from high molecular weight polyols. Specifically, MCCP is a novel route for breaking apart these sugars (C6 and C5) using a metal-catalyzed, alkaline cleavage of sugar alcohols...
Published: 9/21/2011   |   Inventor(s): Shubham Chopade, Dennis Miller, James Jackson
Keywords(s): Bioplastic, Ethylene Glycol, Lactic Acid, PLA, Polyol, Propylene Glycol Category(s): Chemicals, Materials

Process for the Preparation of Lactic Acid and Glyceric Acid

Description of TechnologyMichigan State University’s invention is a process for making lactic and glyceric acid. Aqueous solutions of hexose and pentose sugars, typically glucose or fructose, are digested in the presence of strong anionic exchange resins that act as solid bases. Lactic and glyceric anions form but are bound to the ion exchange...
Published: 8/31/2011   |   Inventor(s): James Jackson, Dennis Miller, Simona Marincean
Keywords(s): Bioplastic, Ethylene Glycol, Glyceric Acid, Lactic Acid, PLA, Polyol, Propylene Glycol Category(s): Chemicals, Materials

High Yield Glycerol to Propylene Glycol Conversion Process

IntroductionThe increased production of biodiesel has resulted in a concomitant increased availability of glycerol, a byproduct of the production process. As a result the price of glycerol has experienced a sharp downward spiral. Challenges have confronted biodiesel producers who have pursued Glycerol conversion to the Propylene Glycol, a more desirable...