Method For The Dehydration Of Lactate Salt To Acrylic Acid Or Acrylic Salt

摘要

Methods for catalytically dehydrating lactate salt to acrylic acid, acrylate salt, or mixtures thereof with high yield and selectivity and without significant conversion to undesired side products, such as, acetaldehyde, propionic acid, and acetic acid, are provided. The catalysts include acid-base bifunctional catalysts.

主权项

1. A method of making acrylic acid, metal acrylate, or mixtures thereof comprising dehydrating a metal lactate by contacting a stream comprising said metal lactate with an acid-base bifunctional catalyst comprising an acidic site and a basic site, and wherein said acidic site is a Brønsted acid with a pKa of about 4 to about 7.