Solvay (societe Anonyme)

S.a. Lhoist Recherche Et Developpement

Solvay Deutschland Gmbh

Universite De Liege, Interface Entreprises-universite

Universitéde Liége

Jean-Paul Pirard

Benoit Heinrichs

Alain Laudet

Jean-Paul Schoebrechts

Claude Vogels

Alain Brasseur

Jacques Van Weynbergh

Christophe Bossuot

Patrice Delhez

Rene Pirard

Veronique Delattre

Albert Germain

The invention relates to a solid mineral composition of heavy metals, in particular mercury, in flue gas, to a method for preparing such a solid mineral compound and to the use thereof for reducing heavy metals, in particular mercury, in flue gas, by placing the flue gas in contact with the solid mineral composition.

Solid mineral composition, method for preparing same and use thereof for reducing heavy metals in flue gas

Method for the manufacture of carbon nanotubes by thermal decomposition of at least one gaseous hydrocarbon () in the presence of a solid catalyst in a reactor () into which the catalyst is introduced via an inlet lock chamber () flushed by an inert gas () and from which the carbon nanotubes are withdrawn via an outlet lock chamber () which is flushed with a flow of inert gas ().

Method and installation for the manufacture of carbon nanotubes

Process for the preparation of a catalyst including a metal of group VIII and a metal of group Ib, according to which the mixture including the alkoxide precursor of an inorganic oxide and complexes including the metals of group VIII and Ib and difunctional complexing compounds including an electron-donor group and a hydrolysable group is hydrolysed in order to form a gel. Process for the conversion of chloroalkanes into alkenes containing less chlorine by means of hydrogen, using such a catalyst.

Process for the preparation of a catalyst and its use for the conversion

A process for preparing a supported catalyst comprising a transition metal selected from palladium, platinum, nickel, cobalt or copper on an aerogel support, which includes the steps of providing a mixture containing an alkoxide precursor of the aerogel, a chelate complex of the transition metal with a chelating agent having Si(OR).sub.3 anchor groups, and an organic solvent in which the chelate complex is soluble; hydrolyzing the mixture by admixing it with water to form a gel; and converting the gel under supercritical conditions into the transition metal aerogel-supported catalyst. The supported catalyst has an especially homogeneous distribution of the metal component and is suitable, for example, for use as a hydrogenation catalyst.

Transition metal aerogel-supported catalyst

Process for the manufacture of an aqueous solution of hydrogen peroxide by direct synthesis from hydrogen and oxygen in a three-phase system, according to which hydrogen and oxygen are reacted directly in the gaseous state at the surface of a solid heterogeneous catalyst, the reaction being performed continuously in a reactor with a stationary trickle bed, filled with solid catalyst particles forming the stationary bed through which a liquid consisting of an aqueous solution and the gas phase containing the hydrogen and oxygen are made to trickle concurrently.

Process for the manufacture of hydrogen peroxide by direct synthesis

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Liege, Belgium

Jean-Paul Pirard