Catalytic conversion of lactic acid to acrylic acid
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United States of America Patent
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Mar 27, 2018
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app pub date -
Mar 15, 2013
filing date -
Apr 11, 2012
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Abstract
Disclosed herein is a mixed phosphate catalyst for converting lactic acid to acrylic acid, which is characterized by a high conversion of lactic acid, a high selectivity for acrylic acid, a high yield of acrylic acid, and correspondingly low selectivity and molar yields for undesired by-products. This is achieved with a particular class of catalysts defined by a mixture of metal-containing phosphate salts. Further, the catalyst is believed to be stable and active for lengthy periods heretofore unseen in the art for such dehydration processes.
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