Commissariat a L'energie Atomique

Commissariat &#xc0; L'&#xc9;nergie Atomique Et Aux &#xc9;nergies Alternatives

Centre National De La Recherche Scientifique

Universitè De Montpellier

Jean Duhamet

Stéphane Pellet-Rostaing

Guilhem Arrachart

Florent Gandi

Jean-Pierre Feraud

Olivier Conocar

Patrick Rivalier

Romain Picard

Denis Ode

Gilles Borda

Jean-Yves Lanoe

Jean-Yves LanoË

Moussa Toure

The invention deals with a method for precipitating at least one solute in a reactor comprising:

Method for precipitating one or more solutes

Method of contacting a first and a second immiscible liquids without mixing them, including: (a) the first liquid is placed in at least one container comprising a wall made of a solid material that is non reactive with the first and second liquids, said wall having one or more through-holes and the first liquid being non wetting vis &#xe0; vis said solid material of the wall; (b) said first container is immersed in a volume of the second liquid so that the first liquid is in contact with the second liquid at the level of said through-holes; (c) the first liquid is left in contact with the second liquid for a time sufficient for mass exchange, transfer, to take place between the first and second liquids; and (d) said first container is withdrawn from the volume of the second liquid.

Method and device for contacting two immiscible liquids without mixing them

A precipitator comprises a counter-current circulation between the reacting substances () and a non-miscible and chemically inert organic confinement phase () to maintain the phase containing the reagent in an emulsion. The walls of the precipitator are hydrophobic to prevent the adhesion of the precipitate. The emulsion is maintained by a mobile stirrer body (). The precipitate is removed continually by a scavenging flow rate device ().

Solute precipitation method and device

An annular centrifugal extractor with an immersed agitation rotor. The liquid-liquid centrifugal extractor including an emulsion chamber and a settling chamber, aligned because of the addition of a section of axis to the rotor, which allows flow and operation to be regularized, especially by allowing the dimensions of the chambers to be selected more freely.

Annular centrifugal extractor with embedded stirring rotor

Growing community of inventors

Bagnols sur Ceze, France

Jean Duhamet