Catalysts For Making Acrylic Acid From Lactic Acid Or Its Derivatives In Liquid Phase

USPTO Patent Application US 2018/0133705 A1
Application Date: May 17th, 2018

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)...
Application Number:
15/868,002
International Classification:
B01J 31/02 (20060101); C07C 51/377 (20060101); C07C 57/04 (20060101); C07C 59/08 (20060101); C07C 59/315 (20060101)
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CLAIMS

What is claimed is:

1. A catalyst for making acrylic acid, acrylic acid derivatives, or mixtures thereof by dehydrating lactic acid, lactic acid derivatives, or mixtures thereof; wherein said catalyst is a molten salt and comprises an ionic liquid (IL) and an acid; wherein said IL has a bromide anion (Br−); wherein said acid...

DESCRIPTION

FIELD OF THE INVENTION

The present invention generally relates to catalysts for making acrylic acid, acrylic acid derivatives, or mixtures thereof. Specifically, the present invention relates to making acrylic acid, acrylic acid derivatives, or mixtures thereof by contacting a feed stream containing lactic acid, lactic acid derivatives, or mixtures thereof with the catalyst in...
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