Rhodia Operations

Performance Polyamides, Sas

Fabien Ocampo

Philippe Leconte

Sergio Mastroianni

Avelino Corma

Olivier Larcher

Julien Hernandez

Virginie Harle

Naotaka Ohtake

Francis Francis

Barry W L Southward

Mitsuhiro Okazumi

Qiang Zhao

Thomas English

Sandra Chouzier

Rui Miguel Jorge Coelho Marques

Javier Diaz-Maroto Carpintero

Javier Tirso Lopez Ausens

Mercedes Boronat

Shengyin Ye

Barry WL Southward

Javier Tirso LÓPEZ Ausens

The present invention relates to a mixed oxide with enhanced resistance and NOstorage capacity. The mixed oxide may be used as a component of a NOtrap material in an exhaust system of an internal combustion engine. The invention also relates to a method for treating an exhaust gas from an internal combustion engine using the mixed oxide.

Mixed oxide with enhanced resistance and NOx storage capacity

The present invention relates to cerium oxide particles that have excellent heat resistance and/or pore volume especially useful for catalysts, functional ceramics, solid electrolyte for fuel cells, polishing, ultraviolet absorbers and the like, and particularly suitable for use as a catalyst or cocatalyst material, for instance in catalysis for purifying vehicle exhaust gas. The present invention also relates to a method for preparing such cerium oxide particles, and a catalyst, such as for purifying exhaust gas, utilizing these cerium oxide particles.

Cerium oxide particles and method for production thereof

The present invention concerns a method of oxidizing a cycloalkane to form a product mixture containing a corresponding alcohol and ketone, said method comprising contacting a cycloalkane with a hydroperoxide compound in the presence of a catalytic effective amount of a cerium oxide based catalyst.

Cycloalkane oxidation catalysts and method to produce alcohols and ketones

The present teachings are directed to inorganic oxide materials that include AlO, CeO, and at least one of MgO and PrO. The present teachings are also directed to catalysts having at least one noble metal supported on these inorganic oxide materials, as well as methods for treating exhaust gases from internal combustion engines using such catalysts.

Inorganic oxide material

A process for the preparation of aliphatic amines, comprises reacting an aliphatic alcohol with an aminating agent in the presence of a catalyst. The catalyst contains copper oxide on a support made of porous alumina, wherein the porous alumina has a volume, corresponding to pores greater than 500 &#x212b; in diameter, of from 10 ml/100 g to 95 ml/100 g.

Macroporous catalyst for the preparation of aliphatic amines

The present invention relates to cerium oxide particles that have excellent heat resistance especially useful for catalysts, functional ceramics, solid electrolyte for fuel cells, polishing, ultraviolet absorbers and the like, and particularly suitable for use as a catalyst or co-catalyst material, for instance in catalysis for purifying vehicle exhaust gas. The present invention also relates to a method for preparing such cerium oxide particles, and a catalyst, such as for purifying exhaust gas, utilizing these cerium oxide particles.

Described herein are methods for forming inorganic composite oxides. Such methods include combining, at a substantially constant pH of between about 5 and about 6.75 over a period of at least about 5 minutes, an acidic precursor composition and a basic composition to form a precipitate composition, wherein the acidic precursor composition comprises an alumina precursor, a ceria precursor, a zirconia precursor and optionally one or more dopant precursors; stabilizing the precipitate by increasing the pH of the precipitate composition to between about 8 and about 10; and calcining the stabilized precipitate to form an inorganic composite oxide. Also described are inorganic composite oxides formed using such methods.

Inorganic composite oxides and methods of making the same

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La Courneuve, France

Fabien Ocampo