Process For Preparing A Carboxylic Acid
AssigneesAvril, Oleon NV, Universite Claude Bernard Lyon 1, Centre National de la Recherche Scientifique (CNRS)
InventorsMarc Lemaire, Estelle Metay, Marc Sutter, Yann Raoul, Eric Da Silva, Sophie Sambou, Philippe Blach
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Abstract
A process for preparing a carboxylic acid, including a step of bringing at least one vicinal diol or at least one vicinal polyol into contact with an atmosphere including oxygen, and a catalyst, and in the absence of additional solvent.
Claims23
A process for preparing carboxylic acid comprising a step of placing at least one vicinal diol or at least one vicinal polyol in contact with an atmosphere comprising oxygen, a catalyst and in the absence of additional solvent, the catalyst having the formula I below:
- [AlnSimOpMq][A]r (I)
- wherein:
- n, m and q are natural integers (), which may be identical or different, chosen, independently of each other, such that n, m and q may simultaneously be equal to 0;
- p is a nonzero natural integer (*);
- r is zero or;
- M corresponds to at least one chemical element chosen from zirconium, tungsten, titanium and rare-earth metals, and
- A corresponds to at least one chemical element chosen from alkaline-earth metals, alkali metals, rare-earth metals and titanium.
(canceled)
A composition comprising a mixture of pelargonic acid, or a derivative thereof, and of azelaic acid, or a derivative thereof, said mixture comprising a pelargonic acid/azelaic acid ratio ranging from 40:60 to 70:30.
(canceled)
Dependencies are inferred from the claim text.