Regeneration of Raney®-Nickel Catalyst for the Synthesis of High-Value Amino-Ester Renewable Monomers
Articolo
Data di Pubblicazione:
2020
Abstract:
Aiming to synthesize high-value renewable monomers for the preparation of renewable specialty polyamides, we designed a new protocol. Amino-esters, produced via the hydrogenation of unsaturated nitrile-esters, are alternative monomers for the production of these polymers. A high monomer yield can be obtained using a Raney®-nickel catalyst despite the drawback of fast deactivation. The hydrogenation of 10-cyano-9-decenoate (UNE11) was tentatively reactivated by three different regeneration procedures: solvent wash, regeneration under hydrogen, and regeneration under sonication. Among these procedures, the in-pot catalyst regeneration (H2 30 bar, 150 °C) demonstrated complete activity recovery and full recycling.
Tipologia CRIS:
03A-Articolo su Rivista
Keywords:
bio-based monomers; amino-esters; hydrogenation; Raney®-nickel regeneration
Elenco autori:
Soutelo Maria, A.; Dubois, J.-L.; Couturier, J.-L.; Brebion, M.; Cravotto, G.
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