Ifp Energies Nouvelles

Raquel Martinez Franco

Bogdan Harbuzaru

Nicolas Bats

Eric Llido

David Berthout

Monique Prigent

Philibert Leflaive

Antoine Fecant

Gerhard Pirngruber

Laëtitia Jothie

The present invention relates to a process for the rapid synthesis of an AFX-structure zeolite comprising at least:

Method for fast synthesis of an AFX-structure zeolite with a FAUjasite source

The invention describes a process for the photocatalytic reduction of carbon dioxide carried out in the liquid phase and/or in the gas phase under irradiation employing a photocatalyst of microporous crystalline metal sulfide type, said process being carried out by bringing a charge containing the COand at least one sacrificial compound into contact with said photocatalyst, then by irradiating the photocatalyst by at least one irradiation source producing at least one wavelength lower than the bandgap width of said photocatalyst, so as to reduce the COand to oxidize the sacrificial compound, so as to produce an effluent containing, at least in part, Cor more carbon-based molecules other than CO.

Method for the photocatalytic reduction of COusing a microporous crystalline metal sulfide photocatalyst

The invention relates to a process for preparing an AFX-structure zeolite comprising at least the following steps:

Method for preparing a high-purity AFX structural zeolite with a nitrogen-containing organic structuring agent

Method for synthesizing an AFX-structure zeolite of very high purity in the presence of an organic nitrogen-containing structuring agent

The invention relates to a process for preparing a synthetic IZM-2 zeolite, which consists in performing a hydrothermal treatment of an aqueous gel containing a source of silicon and a source of amorphous aluminium, two nitrogenous or structuring organic compounds including two quaternary ammonium functions, 1,6-bis(methylpiperidinium)hexane dihydroxide and 1,6-bis(methylpiperidinium)hexane dibromide, used as a mixture, in combination with a source of a specific alkali metal chloride M (preferably NaCl), the aqueous gel not comprising any source of at least one fluoride anion.

Process for preparing an IZM-2 zeolite in the presence of a mixture of nitrogenous organic structuring agents in hydroxide form and of bromide and of an alkali metal chloride

The present invention relates to a process for preparing a zeolite composite material composed of a mixture of AFX and BEA zeolites, comprising at least the following steps:

Method for synthesizing a composite material consisting of a mixture of AFX- and BEA-structure zeolites in the presence of an organic nitrogen-containing structuring agent

The invention relates to a process for preparing an IZM-2 zeolite, comprising at least:

Process for preparing an IZM-2 zeolite in the presence of a nitrogenous organic structuring agent in hydroxide form and of an alkali metal chloride, in fluorinated or non-fluorinated medium

A novel process is described for the preparation of a microporous crystalline solid, known as IZM-2 microporous solid or IZM-2 zeolite. This novel process consists of carrying out the synthesis of IZM-2 zeolite by conversion/transformation of a zeolite with structure type FAU under hydrothermal conditions. In particular, said novel process consists of carrying out the synthesis of an IZM-2 zeolite starting from a zeolite with structure type FAU used as the source of silicon and aluminium and a specific organic molecule or template comprising two quaternary ammonium functions, namely 1,6-bis(methylpiperidinium)hexane dibromide.

Process for the synthesis of IZM-2 zeolite in the presence of a template, 1,6-bis(methylpiperidinium)hexane dibromide

A novel process is described for the preparation of a microporous crystalline solid, known as IZM-2 microporous solid or IZM-2 zeolite. This novel process consists of carrying out the synthesis of IZM-2 zeolite by conversion/transformation of a zeolite with structure type FAU in a fluorinated medium under hydrothermal conditions. In particular, said novel process consists of carrying out the synthesis of an IZM-2 zeolite in a fluorinated medium starting from a zeolite with structure type FAU used as the source of silicon and aluminium and a specific organic molecule or template comprising two quaternary ammonium functions, namely 1,6-bis(methylpiperidinium)hexane dihydroxide.

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Rueil-Malmaison, France

Raquel Martinez Franco