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US 10,882,034 B2Granted
Catalysts for making acrylic acid from lactic acid or its derivatives in liquid phase
AssigneeThe Procter & Gamble Company
InventorsJakob Albert, Peter Wasserscheid, Nicola Taccardi, Jens Nagengast, Matthias Kehrer, Julian Kadar, Dimitris Ioannis Collias
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Abstract
Catalysts for the dehydration of lactic acid, lactic acid derivatives, or mixtures thereof to acrylic acid, acrylic acid derivatives, or mixtures thereof in liquid phase comprising an ionic liquid (IL) and an acid are provided.
Claims7
A molten salt catalyst comprising an ionic liquid (IL) and an acid;
- wherein said IL has a bromide anion (Br);
- wherein said acid is soluble in said IL and selected from the group consisting of Lewis acid, and mixtures thereof;
- wherein said Lewis acid is selected from the group consisting of CaBr2, MgBr2, AlBr3, and mixtures thereof.
Dependencies are inferred from the claim text.