Arkema France

Compagnie Generale Des Etablissements Michelin

Philippe Leduc

Dominique Deur-Bert

Jean-Luc Couturier

Jean-Philippe Gillet

Serge Hub

Dominique Garrait

Fabrice Domingues Dos Santos

Jean-Francois Devaux

Sergey Ivanov

Thierry Lannuzel

Etienne Fleury

Jean-François Devaux

Emmanuel Guiraud

Oleg Ugolnikov

Anne-Frédérique Salit

A method for preparing Cl&#x2014;SONHSOCl including a step of chlorinating sulphamic acid with at least one chlorinating agent and at least one sulphur-containing agent, the method resulting in a flow F1, preferably liquid, including Cl&#x2014;SONHSOCl and a gas stream F2 including HCl and SO, the method including a step a) of treating the gas stream F2. Also, a method for preparing LiFSl including the abovementioned method for preparing Cl&#x2014;SONHSOCl.

Method for preparing lithium bis(fluorosulphonyl)imide salt

The invention relates to a process for producing at least one alkoxylated polyphenol comprising the following successive steps:

Process for producing alkoxylated polyphenols

The present invention relates to the preparation of trifluoroethylene (VFor TrFE) by hydrogenolyzis of chlorotrifluoroethylene (CTFE) in the gaseous phase over a group VIII metal catalyst deposited on a support. This method can be used to obtain VFin an economical manner in conditions which minimize the risk of explosion of this molecule. Using a catalyst containing a group VIII metal and, more specifically, containing Pd deposited on a support and a specific series of steps of separation and purification makes it possible to obtain excellent CTFE conversion rates and high selectivity in VFat atmospheric pressure and at low temperatures.

Method for synthesising trifluoroethylene from chlorotrifluoroethylene

Growing community of inventors

Larajasse, France

Philippe Leduc