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Catalysts for the dehydration of hydroxypropionic acid and its derivatives

  • US 10,286,387 B2
  • Filed: 11/20/2017
  • Issued: 05/14/2019
  • Est. Priority Date: 08/28/2015
  • Status: Active Grant
First Claim
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1. A dehydration catalyst consisting essentially of one or more amorphous phosphate salts;

  • wherein said one or more amorphous phosphate salts consist essentially of one or more monovalent cations, and one or more amorphous phosphate salts are selected from the group represented by empirical formula (Ib);


    M1wN1(1-w)H2(1-x)PO(4-x) wherein MI and NI are two different monovalent cations;

    wherein x is any real number equal to or greater than 0 and equal to or less than 1; and

    wherein w is any real number greater than 0 and less than 1; and

    wherein said one or more amorphous phosphate salts of said dehydration catalyst are neutrally charged.

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