Ceca S.a.

Arkema France

Institut Francais Du Pe'trole

Elf Atochem S.a.

Ifp Energies Nouvelles

Dominique Plee

Alain Methivier

Jean-Jacques Masini

Patrice Gaillard

Serge Bordere

Daniel Cochard

Eric Dutilh

Philibert Leflaive

Ludivine Bouvier

Georges Fremy

Catherine Laroche

Alexander Korzhenko

Fabrice Domingues Dos Santos

Pierre-Louis Taberna

Gregory Schmidt

Stéphane Kieger

Guy Durand

André Lozowski

Jean-Louis Vidal

Jean-Claude Sacleux

Daniel Delcroix

Ludovic Hardouin DuParc

Stephane Kieger

Alain Méthiver

The invention relates to an anode for a Li-ion rechargeable battery, said anode being covered with a protective film based on fluorinated copolymer(s). The invention also relates to the processes for preparing this anode. The invention also relates to a Li-ion rechargeable battery comprising an anode according to the invention. The invention lastly relates to the use of fluorinated copolymer(s) as film for covering an anode for a lithium-ion battery comprising a negative electrode active material.

Anode for Li-ion battery

The present invention relates to the use of (poly)-oxymethylene dialkyl ethers as agents for capturing carbon oxides, CO and/or CO. The invention also relates to the process for capturing carbon oxides using at least one absorption agent chosen from said (poly)oxymethylene dialkyl ethers.

Carbon oxide capture

The present invention relates to a composite of carbon nanotubes and of graphenes in agglomerated solid form comprising: The present invention also relates to a process for preparing said composite, its use for the manufacture of a composite product, and also to the various applications of the composite product.

Thermoplastic and/or elastomeric composite based on carbon nanotubes and graphenes

A subject of the present invention is a process for producing carbon nanotubes, the process comprising: The invention also relates to nanotubes capable of being obtained according to the abovementioned process, which can be advantageously used in all the known fields of application of carbon nanotubes.

Process for producing carbon nanotubes from renewable raw materials

The present invention relates to agglomerated zeolitic adsorbents based on zeolite X with an Si/Al ratio such that 1.15&#x3c;Si/AL&#x3c;1.5, consisting of crystals with a mean diameter of 1.7 mm or less and of an inert binder, at least 90% of the exchangeable cationic sites of the zeolite X being occupied by barium ions. They may be obtained by agglomerating a zeolite X powder having a mean diameter of 1.7 mm or less with a binder, followed by zeolitization of the binder, exchange of the zeolite ions with barium (and potassium) ions and activation of the adsorbents thus exchanged. These adsorbents exhibit, simultaneously, excellent selectivity, reduced mass transfer resistance and excellent mechanical strength and are particularly suitable for the adsorption of the paraxylene contained in C8 aromatic hydrocarbon fractions in liquid phase in processes of the simulated moving bed type and especially for the separation of paraxylene of C8 aromatic hydrocarbon fractions by adsorption, but also for the separation of sugars, polyhydric alcohols, cresols, and substituted toluene isomers.

Agglomerated zeolitic adsorbents, their method of preparation and their uses

The present invention relates to a process for preparing CNTs by bringing a carbon source into contact with a multivalent metal and/or metal-oxide-based catalyst deposited on an inorganic substrate having a BET specific surface area of greater than 50 m/g. The CNTs obtained may be used as agents for improving the mechanical and electrical conductivity properties in polymeric compositions.

Method for synthesis of carbon nanotubes

The invention concerns a method for decarbonating gas streams polluted by CO, which consists in contacting them with an adsorbent consisting of an agglomerate of zeolite X with an Si/Al ratio of 1 to 1.15, highly sodium-exchanged comprising not more than 20% of inert binder, to eliminate at least the carbon dioxide.

Decarbonating gas streams using zeolite adsorbents

The invention relates to a novel method for preparing electrodes based on activated carbon and carbon nanotubes on a collector. The invention also relates to the electrode obtained thereby and the supercapacitor comprising same.

Method for making an electrode, resulting electrode and supercapacitor including same

The present invention relates to agglomerated zeolitic adsorbents containing zeolite X and an inert binder, the inert binder containing at least 80% by weight of clay which has undergone zeolitization by the action of an alkaline solution, the zeolite X having with an Si/Al ratio such that 1.15&#x3c;Si/Al&#x2266;1.5, at least 90% of the exchangeable cationic sites of the zeolite X of which are occupied either by barium ions alone or by barium ions and potassium ions whose Dubinin volume is greater than or equal to 0.240 cm/g. They are obtained by agglomerating zeolite powder with a binder, followed by the zeolitization of the binder, the exchange of the ions of the zeolite by barium ions (and potassium ions) and the activation of the adsorbents thus exchanged. These adsorbents are particularly suited to the adsorption of the para-xylene present in Caromatic hydrocarbon fractions in the liquid phase in processes of simulated moving bed type but also to the separation of sugars, polyhydric alcohols, cresols or substituted toluene isomers.

Agglomerated zeolitic adsorbents, their process of preparation and their uses

The present invention relates to agglomerated zeolitic adsorbents based on zeolite X with an Si/Al ratio such that 1.15&#x3c;Si/Al&#x2266;1.5, at least 90% of the exchangeable cationic sites of the zeolite X of which are occupied either by barium ions alone or by barium ions and potassium ions whose Dubinin volume is greater than or equal to 0.240 cm/g. They are obtained by agglomerating zeolite powder with a binder, followed by the zeolitization of the binder, the exchange of the ions of the zeolite by barium ions (and potassium ions) and the activation of the adsorbents thus exchanged. These adsorbents are particularly suited to the adsorption of the para-xylene present in Caromatic hydrocarbon fractions in the liquid phase in processes of simulated moving bed type but also to the separation of sugars, polyhydric alcohols, cresols or substituted toluene isomers.

Agglomerated zeolitic adsorbents, method for obtaining same uses thereof

The present invention relates to zeolites X, most of the exchangeable sites of which are occupied by lithium and di- and/or trivalent cations, having an improved thermal stability and an improved crystallinity with respect to zeolites of the prior art with the same degree of exchange of lithium and of di- and/or trivalent cations. The zeolites of the present invention are particularly effective as adsorbents of the nitrogen present in various gas mixtures and are well suited to the noncryogenic separation of the gases of the air.

Exchanged zeolites X, in particular exchanged with lithium, their process of preparation and their use as adsorbents of nitrogen in the separation of the gases of the air

A description is given of agglomerates of faujasite X with an Si/Al ratio of 1, the inert binder of which, on the one hand, has been converted to active zeolite by conversion to zeolite in an alkaline liquor, and which have been subjected, on the other hand, to an exhaustive lithium exchange. These adsorbents develop a nitrogen adsorption capacity (1 bar/25&deg; C.) of at least 26 cm /g, which makes them excellent adsorbents for the non-cryogenic separation of gases from air and for the purification of hydrogen.

Agglomerated adsorbent, process for the production thereof and use thereof for the non-cryogenic separation of industrial gases

Process for preparing zeolites of X type having an Si/Al atomic ratio of &lE;1.5 and having exchangeable cations including lithium, trivalent and/or divalent ions, and optionally sodium, potassium, ammonium and/or hydronium ions, involves distributing starting zeolite in a series of receptacles, percolating a solution of at least one lithium compound through the series, drawing a lithium-containing bleed from first receptacle of the carrousel, and drawing off a final effluent stream from a final receptacle in the series. The effluent stream contains compounds of exchangeable cations from the starting zeolite and traces of the lithium compound(s). After a desired degree of lithium exchange has occurred in the first receptacle, the first receptacle is removed and a fresh solution of at least one lithium compound is introduced into the next receptable in the series and percolated through the series. This step can be performed for each receptacle in the series.

Process for the preparation of agglomerated zeolites X and LSX exchanged with lithium

The present invention relates to a novel family of inorganic solids with a narrow and calibrated mesopore distribution which are agglomerated with a binder; these solids can advantageously be used as adsorbents for the industrial separation of gas-phase compounds having different boiling points.

Method for the separation of molecules in the gas phase by adsorption by means of agglomerated solid inorganic adsorbents with a narrow and calibrated mesopore distribution

Predominantly hydrogen gaseous flowstreams containing contaminating amounts of at least carbon monoxide and/or nitrogen impurities are purified by PSA adsorption of such impurities therefrom, via transport over a faujasite zeolite adsorbent, the Si/Al ratio of which ranges from 1 to 3, preferably from 1 to 1.5, and at least 85% of the aluminum tetrahedra comprising the crystal lattices being combined with lithium and calcium cations, the lithium/lithium&plus;calcium ratio therein being at least 70%.

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Lons, France

Dominique Plee