Solvay (Societe Anonyme)

Kali-Chemie Aktiengesellschaft

Solvay Deutschland Gmbh

Solvay & Cie (Societe Anonyme)

Solvay Umweltchemie Gmbh

Engelhard Process Chemicals Gmbh

Solvay Catalysts Gmbh

Solvay Unweltchemie Gmbh

Helmut Derleth

Karl-Heinz Bretz

Michel Strebelle

Abel Grosjean

Benoit Koch

Michael Sell

Robert Walter

Fabienne Wijzen

Andre Rulmont

Dirk Bonse

Gunter Weidenbach

Deniz Adem

Artur Kurs

Philippe Francois

Heinz-Helmer Rasche

Michael Hoffmeister

Alfred Ottmann

Gerhard Neuenfeldt

Norbert Schwetje

Alf-Eric Wischnat

Michael Bischoff

Hubert Schindler

Ludwig Walter

Guenther Sauer

Peter Engelmann

Andreas Meyer-Anderson

Kristen Fuhrmann

Egon Schultz

Karl H Bretz

Maria Hansen

Ingeborg Lange

Karl-Heinrich Bretz

Gunther Sauer

Catalytic composition comprising copper chloride, magnesium chloride and potassium chloride deposited on an alumina, which may be used in particular for the oxychlorination of ethylene into 1,2-dichloroethane. In the processes for the oxychlorination of ethylene in oxygen in a fluid bed, this catalytic composition makes it possible to obtain an excellent yield of 1,2-dichloroethane without causing the deposition of soiling material on the surface of the bundle of tubes of the heat exchanger located in the reactor.

Catalytic composition and process for the oxychlorination of ethylene using such a composition

Process for producing spherical catalyst particles containing a zeolite as active element, according to which a sol containing zeolite crystals and at least one gel-forming compound is sprayed from below directly into a reaction zone containing a reaction gas such that the sol breaks up into individual sol beads immediately before or upon entry into the reaction zone, the sol beads flow through the reaction zone on a curved trajectory, in so doing are pre-consolidated and the sol beads are collected on a collecting means.

Process for producing spherical catalyst particles, catalyst particles and their use in a chemical synthesis

A process for producing porous polymer beads in which polymers, preferably polyolefins or polyvinyl chloride, are dissolved in a solvent, preferably halogenated hydrocarbons or alkyl esters, at temperatures close to the boiling point of the solvent. The hot polymer solution is cooled, and the polymer beads formed during the cooling process are separated, washed and dried. The porous polymer beads are useful, for example, as catalyst carriers or as adsorption agents.

Process for producing porous polymer globules

Process for the manufacture of a support containing silica and at least one constituent chosen from alumina and aluminum phosphate, according to which an alcohol, water, a silicon alkoxide and an acid are mixed under conditions such that gelling or precipitation of silica is prevented, an acidic solution of an aluminum compound and/or a solution of a source of phosphate ions are added thereto, a gelling agent is added thereto, a gel is recovered which is washed with water and then by means of an organic liquid, the gel is then dried by atomization until a powder is obtained, and the powder is calcined. Polymerization of olefins in the presence of a catalyst containing chromium on a support as described above.

Process for the preparation of a support for catalysts, catalyst for the

Method of producing spherical particles

Process for the production of a microspheroidal powder of low dispersity, according to which a hydrogel is prepared, an aqueous suspension of the ground hydrogel is subjected to atomisation in a stream of gas, gelled particles containing moisture are collected from the atomisation, the particles are brought into contact with an organic liquid in order to remove at least some of the moisture and the particles are then subjected to drying. The process applies to the production of silica powders intended to serve as support for chromium oxide catalysts which may contain titanium oxide and are suitable for the polymerisation of ethylene.

Process for the production of a microspheroidal powder of low

Process for catalytic treatment of effluents containing organic and

Catalytic composition comprising copper chloride, magnesium chloride and caesium chloride deposited on an alumina, which may be used in particular for the oxychlorination of ethylene into 1,2-dichloroethane. In the processes for the oxychlorination of ethylene in oxygen in a fluid bed, this catalytic composition makes it possible to obtain an excellent yield of 1,2-dichloroethane without causing the deposition of soiling material on the surface of the bundle of tubes of the heat exchanger located in the reactor.

Catalytic composition and process for the oxychlorination of ethylene

Abrasion-resistant catalyst carrier formed of transition aluminas

Abrasion-resistant carrier catalyst

A process for preparing fracture-resistant sol/gel particles which contain silicon dioxide, in which a highly disperse filler is added to the aqueous alkali metal silicate solution and/or the aqueous acid solution used in the preparation process.

Process for preparing fracture-resistant sol/gel particles

A method for the sorption of organic compounds using a sorbent, comprising activated carbon in a preferably amorphous oxidic support is described. Novel sorbents are also described.

Sorption of organic compounds from fluids

The invention relates to a process for the oxychlorination of ethylene by means of a catalyst composition comprising an alumina support impregnated with cupric chloride, magnesium chloride and a chloride of an alkali metal chosen from sodium and lithium. The oxychlorination performed in this manner makes it possible to obtain an excellent yield without the reactor being corroded by the catalyst composition employed.

Process for the oxychlorination of ethylene and catalyst compositions

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Nienburg, Germany

Helmut Derleth