Process for the preparation of ammeline
AssigneeDsm IP Assets B.V.
InventorsPetronella Catharina Raemakers-Franken, Renier Henricus Maria Kierkels
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Abstract
The present invention relates to a new process for the preparation of ammeline and/or ammelide from melamine by a solid-to-solid reaction in an aqueous reaction mixture comprising a biocatalyst, wherein the biocatalyst comprises at least one enzyme belonging to the amidohydrolase superfamily and having aminohydrolase activity towards 1,3,5-triazine compounds. The invention further relates a product obtainable by the process according to the invention, wherein the product comprises ammeline and/or ammelide.
Claims13
A process for the preparation of ammeline and optionally ammelide from melamine comprising:
- a) contacting solid melamine in an aqueous reaction mixture with a biocatalyst;
- b) incubating the aqueous reaction mixture comprising solid melamine and the biocatalyst for sufficient time to convert the melamine into a product comprising solid ammeline:
- and
- c) recovering the product, wherein the biocatalyst comprises at least one enzyme belonging to the amidohydrolase superfamily and having amidohydrolase activity towards 1, 3, 5-triazine compounds, and wherein the at least one enzyme comprises an amino acid sequence having at least 90% sequence identity to the sequence selected from the group consisting of SEQ ID NO:
- 5, SEQ ID NO:
- 6, SEQ ID NO:
- 7, SEQ ID NO:
- 8 and SEQ ID NO:
- 9.
Dependencies are inferred from the claim text.