Intellectual Property India Publishes Patent Application for 'Process For The Manufacture Of A Propylene-Derived Chemical Of Interest, In Particular An Acrylic Ester, From Renewably-Sourced Ethanol' Filed by Basf Se

MUMBAI, India, June 13 -- Intellectual Property India has published a patent application (202517049520 A) filed by Basf Se, Ludwigshafen am Rhein, Germany, on May 22, for 'process for the manufacture of a propylene-derived chemical of interest, in particular an acrylic ester, from renewably-sourced ethanol.'

Inventor(s) include Willersinn, Stefan; Kindler, Alois; Weinel, Christian; Keck, Daniel; Mackewitz, Thomas; Rahn, Dieter; and Eller, Johannes Lazaros Friedrich.

The application for the patent was published on June 13, under issue no. 24/2025.

According to the abstract released by the Intellectual Property India: "A process for the manufacture of an acrylic ester selected from n-butyl acrylate and 2-ethylhexyl acrylate comprises subjecting a feedstock comprising a renewably-sourced ethanol to dehydration to produce a renewably-sourced ethylene stream. The renewably- sourced ethylene stream is subjected to an olefin-interconversion to obtain renewably- sourced propylene; the olefin-interconversion comprising ethylene dimerization to obtain n-butenes; and metathesis reaction between n-butenes obtained according to (i) and ethylene to obtain propylene. The renewably-sourced propylene is subjected to a sequence of chemical conversions to obtain an acrylic ester selected from n-butyl acrylate and 2-ethylhexyl acrylate, the sequence of chemical conversions comprising a), ), d) and e) or a), ?), d) and e): a) hydroformylation of the propylene to produce n-butyraldehyde; ) hydrogenation reaction of the n-butyraldehyde obtained in a) to produce n-butanol; ?) condensation of the n-butyraldehyde obtained in a) to produce 2-ethyl-3-hydroxyhexanal and subjecting the 2-ethyl-3-hydroxyhexanal to a hydrogenation reaction to produce 2-ethylhexanol; d) oxidation reaction of the propylene to produce acrylic acid; e) esterification reaction of the acrylic acid with one of n-butanol obtained in ) or 2-ethylhexanol obtained in ?) to produce an acrylic ester. The process provides a reaction scheme for renewably-sourced n-butyl acrylate and 2-ethylhexyl acrylate."

The patent application was internationally filed on Oct. 27, 2023, under International application No.PCT/EP2023/080088.

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