Interox (societe Anonyme)

Solvay (societe Anonyme)

Solvay Sa

Solvay Interox (societe Anonyme)

Jean-Pierre Ganhy

Jean-Pierre Catinat

Pierre Jacobs

Paul Deschrijver

Johan Martens

Koen Vermeiren

Marleen Baes

An amorphous catalyst support comprising at least a first oxide selected from the group consisting of: silica, germanium oxide, titanium oxide, zirconium oxide or mixtures thereof, preferably silica gel beads or diatomaceous earth; a group 3 metal oxide; and anions in an amount not greater than 10% by weight of the catalyst support; wherein the group 3 metal oxide is incorporated in the first oxide structure at the molecular level. The catalyst support is prepared by (a) mixing the first oxide, with an anhydrous source of the group 3 metal oxide, and water, at a pH above 11, thus forming a suspension, (b) washing the catalyst support with water, (c) separating the catalyst support from the water, and (d) optionally drying and/or calcining the catalyst support. A catalyst based on such a support has improved catalytic properties.

Catalyst support and process for the preparation thereof

The present invention refers to an aqueous hydrogen peroxide solution having a hydrogen peroxide concentration [HO] expressed as % by weight of the solution and an apparent pH of from pHto pH, such that pH=3.45&#x2212;0.0377&#xd7;[HO], and pH=3.76&#x2212;0.0379&#xd7;[HO]. The present invention also relates to a process for the preparation of said hydrogen peroxide solution and the use of said solution in a process for the epoxidation of olefins.

Aqueous hydrogen peroxide solution, process for its preparation and use thereof

Process for the synthesis of alkylated aromatic hydrocarbons

A quinoxaline is oxidized by means of hydrogen peroxide in an inert solvent medium in the presence of water and of a catalyst selected from selenium and selenium compounds. The process applies to the preparation of substituted and unsubstituted 2,3-dihydroxyquinoxalines.

Process for the manufacture of a 2,3-dihydroxyquinoxaline, and

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Jean-Pierre Ganhy