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US 12,203,114 B2Granted
Method for the production of acrylic acid or salts thereof
AssigneeBASF SE
InventorsDiego Ghislieri, Tobias Joachim Zimmermann, Stefan Seemayer, Michael Breuer, Doreen Schachtschabel
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Abstract
Described herein are methods for the production of ammonium acrylate or salts thereof from acrylonitrile using nitrilase as a catalyst.
Claims6
A process for producing (meth-) ammonium acrylate comprising the steps of
- a. Providing an aqueous medium comprising water, nitrilase and (meth-) acrylonitrile,
- b. Incubating the aqueous medium and
- c. Optionally isolating the (meth-) ammonium acrylate from the reaction mixture, wherein the nitrilase has at least 80% sequence identity to SEQ ID NO:2 and the amino acid differences between said nitrilase and the nitrilase of SEQ ID NO:2 are conservative amino acid substitutions;
- wherein the polypeptide has an activity of converting (meth-) acrylonitrile to (meth-) ammonium acrylate.
1 more element
Dependencies are inferred from the claim text.