Solvay (societe Anonyme)

Solvay Sa

Solvay Fluor Und Derivate Gmbh

Solvay & Cie (societe Anonyme)

Solvay

Reilly Chemicals S.a.

Solvey (societe Anonyme)

Francine Janssens

Vincent Wilmet

Jean-Paul Schoebrechts

Pascal Pennetreau

James Franklin

Max Josef Braun

Philippe Krafft

Alain Lambert

V&eacute;ronique Mathieu

Olivier Buyle

Lionel Casaubon Seignour

Kerstin Eichholz

Johannes Eicher

Stefan Palsherm

Stephen Bloomfield

Patrick Markus Dhaese

Veronique Mathieu

Alain Vandenbussche

Werner Rudolph

Pierre Barthelemy

Jean-Pierre Catinat

Rene Walraevens

Matthias Rieland

Roberto Garaffa

Jose Miguel Campos Martin

Jose Luis Garcia Fierro

Charles Dogimont

Véronique Mathieu

Frans Grunchard

Gema Blanco Brieva

Eckhard Hausmann

Manuel Montiel Argaiz

Reiner Fischer

A process for manufacturing hydrogen peroxide by an anthraquinone autoxidation process (AO-process) comprising two alternate (essential) steps of: (a) hydrogenation of a working solution in a hydrogenation unit in the presence of a catalyst, wherein such working solution contains at least one alkylanthraquinone dissolved in at least one organic solvent, to obtain at least one corresponding alkylanthrahydroquinone compound; and (b) oxidation of the at least one alkylanthrahydroquinone compound to obtain hydrogen peroxide in an oxidation unit; and further comprising the step of: (c) extracting the hydrogen peroxide formed in the oxidation step in an extraction unit, wherein the units of step (a) to (c), optionally together with further ancillary units as appropriate, constitute a hydrogen peroxide production site, wherein one or more of said units are equipped with one or more sensors for monitoring one or more AO-process parameters at the hydrogen peroxide production site, said sensors being interconnected with one or more first computers at the hydrogen peroxide production site, said first computers being linked via a communication network to one or more second computers in a control room being remote from the hydrogen peroxide production site, and said control room being remotely controlling such hydrogen peroxide production site.

Process for producing hydrogen peroxide

A process for manufacturing hydrogen peroxide by an anthraquinone autoxidation process (AO-process) comprising two alternate essential steps of: (a) hydrogenation of a working solution in a hydrogenation unit in the presence of a catalyst, wherein the working solution contains at least one alkylanthraquinone dissolved in at least one organic solvent, to obtain at least one corresponding alkylanthrahydroquinone compound; and (b) oxidation of the at least one alkylanthrahydroquinone compound to obtain hydrogen peroxide in an oxidation unit; and further comprising step (c): extracting the hydrogen peroxide formed in the oxidation step in an extraction unit, wherein the hydrogenation, oxidation and extraction steps are performed in an reactor system which is designed as a compact modular system of a hydrogenation, an oxidation and an extraction unit, and wherein the reactor system is configured to operate without a reversion (regeneration) unit for continuous reversion of the working solution as a small to medium scale AO-process with a production capacity of hydrogen peroxide of up to 20 kilo tons per year, wherein the working solution and/or the catalyst are replaced and/or treated for regeneration or reactivation only intermittently or periodically, e.g., with a low frequency.

A catalyst support comprising a material functionalized with at least one acid group and at least one halogen atom; and a supported catalyst comprising (i) a catalyst and (ii) the catalyst support comprising the functionalized material, as well as their uses in production of hydrogen peroxide. A process for producing hydrogen peroxide, comprising reacting hydrogen and oxygen in the presence of the supported catalyst comprising the functionalized material, optionally with the addition of an inert gas, in a reactor.

Process to obtain hydrogen peroxide, and catalyst supports for the same process

A telomerisation process is described whereby haloalkanes like tetrachloromethane are added to halogenated olefins like 2-chloroprop-1-ene in the presence of an iron catalyst and a phosphite. The reaction products, e.g. 1,1,1,3,3-pentachlorobutane, can be fluorinated.

Process for the preparation of halogenated hydrocarbons with at least 3 carbon atoms in the presence of iron and a phosphite

Process for obtaining a hydrofluoroalkane which is purified of organic impurities, according to which the hydrofluoroalkane containing organic impurities is subjected to at least one purification treatment chosen from

Process for obtaining a purified hydrofluoroalkane

The present invention relates to a fluorination method for the synthesis of halofluoroorganic compounds which can be used, inter alia, as precursors in the synthesis of 2,3-unsaturated fluoroorganic carbonyl compounds comprising a fluorine substituent in the 2 position.

Process for the synthesis of fluoroorganic compounds

Method of manufacture of a hydrofluoroalkane comprising the use of a Lewis base as stabilizer of the hydrofluoroalkane. No drawings.

Method of manufacture of a hydrofluoroalkane

Process for the preparation of a hydro(chloro)fluoroalkane according to which a halogenated precursor of the hydro(chloro)fluoroalkane is reacted with hydrogen fluoride in the presence of a catalyst comprising chromium (Cr) and at least one other metal selected from the group consisting of aluminium, barium, bismuth, calcium, cerium, copper, iron, magnesium, strontium, vanadium and zirconium.

Method for preparing a hydro(chloro)fluoroalkane and catalyst

The invention relates to a process for the preparation of 1-chloro-1-fluoroethane and 1,1-difluoroethane by reaction of vinyl chloride with hydrogen fluoride, in an organic solvent consisting of at least one saturated halogen-containing hydrocarbon.

Process for the preparation of 1-chloro-1-fluoroethane and/or 1,1-difluoroethane

1,1,1,3,3-pentafluoropropane is produced by reaction between 1,1,1,3,3-pentachloropropane and hydrogen fluoride in the presence of a hydrofluorination catalyst. The 1,1,1,3,3-pentachloropropane may advantageously be obtained by reaction between vinyl chloride and tetrachloromethane in the presence of a telomerization catalyst and of a nitrile.

Process for the preparation of 1.1.1.3.3-pentafluoropropane

Carboxylic acid fluorides having a boiling point of preferably less than 100&#xb0; C. are suitable for use as pesticides. Acetyl fluoride is highly suitable, and Chlorodifluoroacetyl fluoride and trifluoroacetyl fluoride are also very useful. Mixtures of carboxylic acid fluoride pesticides and other pesticides are also disclosed.

Carboxylic acid fluorides as pesticides

The invention relates to a process for the preparation of chloro-1-fluoroethane and 1,1-difluoroethane by reaction of vinyl chloride with hydrogen fluoride, in organic solvent consisting of at least one saturated halogen-containing hydrocarbon.

1,1,1,3,3-Pentafluoropropane is produced by reaction between 1,1,1,3,3-pentachloropropane and hydrogen fluoride in the presence of a hydrofluorination catalyst. The 1,1,1,3,3-pentachloropropane may advantageously be obtained by reaction between vinyl chloride and tetrachloromethane in the presence of a telomerization catalyst and of a nitrile.

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Vilvoorde, Belgium

Francine Janssens