Arkema France

Centre National De La Recherche Scientifique

Universite Claude Bernard – Lyon1

Markus Brandhorst

Jean-Luc Dubois

Jean-Luc Couturier

Eric Lacroix

Francois Fajula

Serge Hub

Jean-Pierre Disson

Isabelle Tartarin

Wolfgang Holderich

Mickaël Capron

François Fajula

Daniel Bianchi

Frederic Thevenet

Juergen Lohr

Wilm Eickelberg

Francesco DiRenzo

Christophe Dujardin

Francesco Di Renzo

A method for the combined synthesis of a mono-unsaturated nitrile-ester(acid) and of a bi-functional carbonyl compound, wherein it includes a step including the cross metathesis mc1 of an unsaturated fatty acid/ester compound with an unsaturated nitrile compound, in which mc1 is performed with partial conversion such as to obtain and recover, separately, at least the following products: a mono-unsaturated nitrile-ester/acid and a symmetrical compound, diester or diacid respectively including a double bond located in the middle of the molecular chain of compound, and subsequently a step including the oxidation cleavage cp2 of the double bond of compound, such as to form a single type of carbonyl compound having formula R2-(CH2)n-COR', in which R&#x2032; is H or OH, depending on the operating conditions selected for the oxidation cleavage cp2. Also, the production of monomers for the polymer industry.

Combined synthesis of a nitrile-ester/acid and of a diester/diacid

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 of oxidative cleavage and of molecular oxygen and in the absence of organic solvent.

Method for cleaving unsaturated fatty chains

The present invention relates to a method for preparing an aqueous solution of hydrogen peroxide from oxygen, hydrogen and optionally water. The invention more particularly relates to a method for preparing an aqueous solution of hydrogen peroxide in which at least a portion of the reactor is cooled down to a temperature lower than 15&#xb0; C.

Method for producing hydrogen peroxide

The present invention relates to a process for the preparation of lauryllactam in which a Beckmann rearrangement of cyclododecanone oxime is carried out. Said process is carried out in the gas phase at a temperature of between 180 and 450&#xb0; C. in the presence of a microporous material having a three-dimensional inorganic main structure composed of tetrahedra connected via a common edge, called zeolite.

Process for the synthesis of lauryllactam (L12) by gas phase catalytic rearrangement of cyclododecanone oxime

The use of a complex oxide having the following composition (I). MoVXXXXO(I) wherein Mo is molybdenum; V is vanadium; O is oxygen; Xis at least one element selected from tungsten, titanium, tantalum and niobium; Xis at least one element selected from copper, antimony, tellurium and bismuth; Xis at least one element selected from alkaline earth metals; Xis at least one element selected from alkaline metals; and O&#x3c;a&#x2266;10; O&#x2266;b&#x2266;4; O&#x3c;c&#x2266;5; O&#x2266;d&#x2266;2; O&#x2266;e&#x2266;2; and x is a numerical value determined by the extents of the oxidation of the other elements, as a catalyst in the preparation of a partial oxidation product of a lower alcohol by direct oxidation of a lower alcohol in the vapor phase.

Process for preparing partial oxidation products of lower alcohols by direct oxidation of a lower alcohol and catalysts for use in that process

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Lyons, France

Markus Brandhorst