CATALYST FOR PREPARING ACRYLIC ACID FROM LACTIC ACID AND PROCESS FOR PREPARING ACRYLIC ACID WITH THE CATALYST

摘要

The catalyst in the present invention can be used for the preparation of acrylic acid from lactic acid, and is characterized by containing β-zeolite molecular sieves or hydroxyapatite. In addition, the process of the present invention for preparing acrylic acid is characterized in that in the presence of the catalyst of the present invention, lactic acid is subject to a dehydration reaction and acrylic acid can be selectively produced. The selectivity and yield of acrylic acid are increased significantly using β-zeolite molecular sieves or hydroxyapatite in the catalyst for the preparation of acrylic acid from lactic acid.