Institut Francais Du Pe'trole

Institut Français du Pétrole

Institut Francais Du P&eacute;trole

Jacques Baron

Ronan Le Dred

Eric Benazzi

Sylvie Lacombe

Jocelyne Brendle

Daniel Saehr

Jean-Francois Joly

Jean-Louis Guth

Philippe Caullet

Anne-Catherine Faust

Nathalie Georges-Marchal

V&eacute;ronique Schlussel

The present invention relates to stevensite or kerolite type trioctahedral phyllosilicates 2:1 containing fluorine, fluorinated in synthesis in an acid medium and modified post-synthesis to bring about Si/Al and/or Mg/Al substitutions which impart acid properties to the solid. These phyllosilicates may be incorporated in the composition of catalysts used to convert hydrocarbons, in particular for hydrocracking.

Trioctahedral phyllosilicates 2:1 of a stevensite or kerolite type modified post-synthesis, method of preparation and use in catalysis

This invention pertains to the use of a catalyst that contains at least one dioctahedral phyllosilicate 2:1, which is preferably synthesized in a fluoride medium in the presence of HF acid and/or another source of fluoride anions, whose reticulate distance is equal to at least 20&times;10,m (2 nm) and which includes pillars that are based on at least one oxide from the elements of groups IVB, VB, VIB, VIII, IB, IIB, IIA, IVA, or any combination of these oxides, and preferably selected from the group composed of SiO,, Al,O,, TiO,, ZrO,, and V,O,, or any combination of the latter and at least one element from group VIII, in a process for isomerization of a feedstock that contains mainly normal paraffins that carry 5 to 10 carbon atoms per molecule.

Process for isomerization of normal C5-C10 paraffins using bridged long-reticulate-distance dioctahedral phyllosilicate 2:1

The invention relates to dioctahedral phyllosilicates 2:1 whose basal spacing is at least equal to 2.0.times.10.sup.-9 m and which in the interlayer space comprise pillars based on at least one of the compounds that is selected from the group that is formed by SiO.sub.2, Al.sub.2 O.sub.3, TiO.sub.2, ZrO.sub.2, V.sub.2 O.sub.5, or any combination of the latter. Preferably, they contain fluorine. The invention also relates to a process for their preparation that includes treatment with a surfactant, followed by treatment with a primary or secondary amine and at least one alkoxide of an element that is selected from the group that is formed by the elements Si, Al, Zr, Ti and V. The invention also relates to a catalyst that comprises said phyllosilicate, at least one matrix, and optionally a zeolite Y. The invention also relates to a process for converting hydrocarbons with this catalyst, and in particular a hydrocracking process.

Long-reticulate-distance pillared dioctahedral phyllosilicate 2:1,

MTW-type zeolite and its preparation process

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Mulhouse, France

Jacques Baron