 |
 |
 |
Journal articles
Bleaching Earths as Powerful Additives for Ru-Catalyzed Self-Metathesis of Non-Refined Methyl Oleate at Pilot Scale
Abstract : A practical and cost-effective ruthenium-catalyzed self-metathesis of non-refined methyl oleate (85%) derived from very high oleic sunflower oils was demonstrated at pilot scale using a robust and kg-scale commercially available SIPr-M71 pre-catalyst. The simple addition of 1 wt% bleaching earths (Tonsil 110FF) to a thermally pretreated oil could efficiently prevent catalyst deactivation. Remarkably, without the need for filtration, the catalytic system was able to achieve a turnover number (TON) of more than 744 000 at a catalyst loading of only 1 ppm. At large scale (up to 200 kg), the equilibrium of the self-metathesis reaction was reached within 1 hour at 50 degrees C under neat conditions at a very low 5 ppm catalyst loading to produce the expected primary metathesis products (PMP), that is, 9-octadecene and dimethyl-9-octadecenoate, with a productive TON of 94900.
Cited literature [5 references]
https://hal-univ-rennes1.archives-ouvertes.fr/hal-01614771
Contributor : Laurent Jonchère <>
Submitted on : Thursday, October 26, 2017 - 12:16:55 PM
Last modification on : Wednesday, January 13, 2021 - 9:41:30 AM
Long-term archiving on: : Saturday, January 27, 2018 - 12:57:48 PM
Contributor : Laurent Jonchère <>
Submitted on : Thursday, October 26, 2017 - 12:16:55 PM
Last modification on : Wednesday, January 13, 2021 - 9:41:30 AM
Long-term archiving on: : Saturday, January 27, 2018 - 12:57:48 PM
File
Mauduit et al. - Bleaching Ear...
Files produced by the author(s)