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Jean-luc Dubois
Yasuhiro Magatani, Kimito Okumura, Jean Luc Dubois, Jean Francois Devaux: Catalyst and process for preparing acrolein and/or acrylic acid by dehydration reaction of glycerin. ARKEMA FRANCE, Millen White Zelano & Branigan P C, October 20, 2015: US09162954

A catalyst composition comprising at least an heteropolyacid deposited on a porous titania carrier. A catalyst composition comprising at least an heteropolyacid in which protons in the heteropolyacid may be partially exchanged by at least one cation selected from elements belonging to Group 1 to Gro ...


32
Jean-luc Dubois
Jean Luc Dubois: Method for producing bioresourced propionic acid from glycerol. ARKEMA FRANCE, Buchanan Ingersoll & Rooney P C, December 8, 2015: US09206110

A method for producing bioresourced propionic acid from glycerol. Also, a composition comprising more than 85 mass % of bioresourced propionic acid, and to the use of the propionic acid obtained from the method as a solvent, as a food preservative, for producing herbicide or for preparing vinyl prop ...


33
Jean-luc Dubois
Markus Brandhorst, Jean Luc Dubois: Method for cleaving unsaturated fatty chains. Arkema France, Steven D Boyd, May 19, 2015: US09035079

The invention relates to a method for cleaving unsaturated fatty chains comprising a step of oxidative cleavage in which at least one fatty acid derivative having at least one unsaturation is reacted in the liquid phase with hydrogen peroxide in the presence of a catalyst for activating the reaction ...


34
Jean-luc Dubois
Jean Luc Couturier, Jean Luc Dubois: Process for preparing amino acids or esters comprising a metathesis step. ARKEMA FRANCE, Buchanan Ingersoll & Rooney P C, December 29, 2015: US09221745

A process for synthesizing a long-chain saturated α,ω-amino ester (acid) including from 6 to 17 carbon atoms, said process including a first step of cross metathesis between a first acrylic compound chosen from acrylonitrile, acrylic acid or an acrylic ester and a second monounsaturated compound inc ...


35
Jean-luc Dubois
Jean Luc Dubois: Method for the production of acrylic acid from propane, in the absence of molecular oxygen. Arkema, Buchanan Ingersoll & Rooney PC, October 16, 2007: US07282604

The invention concerns a method for producing acrylic acid from propane, in the absence of molecular oxygen which consists in: a) introducing a gas mixture free of molecular oxygen and comprising propane, water vapor, and, optionally, an inert gas, into a first reactor with fluidized catalytic bed, ...


36
Jean-luc Dubois
Jean Luc Dubois: Method for preparing fluorinated olefin compounds. Arkema France, Brinks Gilson & Lione, November 17, 2015: US09187387

The present invention relates to a method for preparing fluorinated olefin compounds, in particular (chloro)fluoropropenes and (chloro)fluorobutenes, and specifically, the fluorinated compound 2,3,3,3-tetrafluoro-1-propene, including at least one step of fluorination, in the gaseous phase, with HF a ...


37
Jean-luc Dubois
Jean Luc Dubois, Antoine Piccirilli, Julien Magne: Lesquerella seed products and method and device for producing same. ARKEMA FRANCE, Buchanan Ingersoll & Roc P E, December 29, 2015: US09220287

A method for extraction from Lesquerella seeds having an acid value of less than 6 mg KOH/g, said method including the following steps: a seed-processing step i) that includes a single operation of flattening the seeds and at least one operation of drying the seeds; and a step ii) of placing the pro ...


38
Jean-luc Dubois
Jean Luc Dubois, Antoine Piccirilli: Process of reactive trituration directly on an oil cake. ARKEMA FRANCE, Buchanan Ingersoll & Rooney P C, September 1, 2015: US09120996

A process including at least one reactive trituration step which includes putting an oil cake including from 3% to 30% oil in contact with an anhydrous light alcohol and an alkaline catalyst under temperature and time conditions that are sufficient to allow for the extraction and transesterification ...


39
Jean-luc Dubois
Jean Luc Dubois, Stephanie Serreau, Fabienne Desdevises: Process for the preparation of acrylic acid comprising a partial oxidation of propane to propylene. Arkema France, Millen White Zelano & Branigan P C, June 8, 2010: US07732639

The invention relates to a method for preparing acrylic acid by oxidizing propylene and then acrolein, involving the recycling of gases that had not reacted by means of a partial oxidation of the propane, in parallel, at the end of the acrylic acid recovery step, then returning, to the propylene-con ...


40
Jean-luc Dubois
Jean Luc Dubois: Method for the synthesis of dialkoxy alkanes by means of the selective oxidation of alcohols. Arkema France, Smith Gambrell & Russell, December 23, 2014: US08916730

The invention relates to a method for the synthesis of dialkoxyalkanes by means of the partial selective oxidation of a light alcohol. According to said method, the light alcohol is oxidized in the presence of molecular oxygen or a gas containing molecular oxygen, and a solid oxidation catalyst base ...