Arkema France

Institut Francais Du Pe'trole

Centre National De La Recherche Scientifique

Ifp Energies Nouvelles

Université Lille 1 - Sciences Et Technologies

Centre National De La Recherche Scientifique-cnrs

Carole Lamonier

Pascal Blanchard

Edmond Payen

Georges Fremy

Patrice Barre

Karine Sanchou

Alexia Cordova

Virginie France Harle

Audrey Bonduelle

Karin Marchand

Denis Guillaume

Fabrice Bertoncini

Michel Fournier

Georges Frémy

Karima Ben Tayeb

Catherine Martin

Hélori Salembier

Georges FRÉMY

The invention relates to a process for preparing methyl mercaptan from a mixture of carbon oxide, hydrogen sulfide and hydrogen, in the presence of a catalyst based on molybdenum and potassium supported on zirconia, said catalyst not comprising any promoter.

Process for the preparation of methyl mercaptan

The invention relates to a catalyst comprising an active component based on molybdenum and on potassium and a support based on hydroxyapatite, and also to a process for preparing said catalyst and a process for producing methyl mercaptan in a catalytic process by reaction of carbon monoxide, sulphur and/or hydrogen sulphide and hydrogen, comprising the use of said catalyst.

Catalyst for the synthesis of methyl mercaptan and process for producing methyl mercaptan from synthesis gas and hydrogen sulphide

The invention describes a heteropolycompound constituted by a nickel salt of a lacunary Keggin type heteropolyanion comprising tungsten in its structure, with formula:NiAWO, zHOwherein Ni is nickel, A is selected from phosphorus, silicon and boron, W is tungsten, O is oxygen, y=0 or 2, x=3.5 if A is phosphorus, x=4 if A is silicon, x=4.5 if A is boron, and x=m/2+2 for the rest, and z is a number in the range 0 to 36, in which said heteropolycompound has no nickel atom in substitution for a tungsten atom in its structure, said nickel atoms being placed in the counter-ion position in the structure of said compound.

Lacunary Keggin type heteropolyanion based on tungsten for hydrocracking

A process is described for preparing a solution formed by at least one cobalt and/or nickel salt of at least one heteropolyanion combining molybdenum and cobalt or molybdenum and nickel in its structure, said process comprising:

Process for preparing at least one cobalt and/or nickel salt of at least one Anderson heterpolyanion combining molybdenum and cobalt or nickel in its structure

A catalyst contains at least one group VIII element and at least molybdenum and/or tungsten, said elements being present at least in part in the catalyst in the dry state in the form of at least one heteropolyanion with formula MABOHC, tHO; MABOHC, tHO; MABOHC, tHO; MABOHC, tHO; or MABOHC, tHO, in which M is cobalt and/or nickel and/or iron and/or copper and/or zinc, A is one or two elements from group VIII of the periodic table, B is molybdenum and/or tungsten and C is an Hion and/or a (NRRRR)type ammonium ion, in which R, R, Rand R, which may be identical or different, correspond either to a hydrogen atom or to an alkyl group and/or caesium and/or potassium and/or sodium, t is a number between 0 and 15 and x takes a value in the range 0 to 4 depending on the formula.

Catalyst based on a group VI metal and a group VIII metal at least partially present in the form of heteropolyanions in the oxide precursor

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Armentieres, France

Carole Lamonier