Lonza Inc.

Roche Vitamins Inc.

Lonza Ag

Eidgenossische Technische Hochschule Zurich

Umicore Ag & Co Kg

Alfons Baiker

Tamas Mallat

Wendelin Jan Stark

Stefan Loher

Sotiris-Emmanuel Pratsinis

Thomas Kreuzer

Oleg Werbitzky

Stephan Eckhoff

Ulrich Goebel

Wilfried Mueller

Marek Maciejewski

Daniel Gasser

Erich Armbruster

Ruediger Hoyer

Hans-Joachim Guntherodt

Ina Grisstede

Marek Glinski

Peter Dollenmeier

Achim Fischer

Halim Baris

Volker Franzen

Remo Hutter

Jan-Dierk Grunwaldt

Meike Wittrock

Niklaus K&uuml;nzle

Christina Maria Casapu

Maria Cristina Casapu

Dominique Dutoit

Stefan Fridolin Loher

Described is a method for the production of metal salts, wherein the cationic metal is preferably selected from Group I to IV metals and mixtures thereof and the anionic group is selected from phosphates, silicates, sulfates, carbonates, hydroxides, fluorides and mixtures thereof, and wherein said method comprises forming a mixture of at least one metal source that is a metal carboxylate with a mean carbon value per carboxylate group of at least 3 and at least one anion source into droplets and oxiding said droplets in a high temperature environment, preferably a flame. This method is especially suited for the production of calcium phosphate biomaterials such as hydroxyapatite (HAp,Ca10(PO4)6(OH)2) and tricalcium phosphate (TCP,Ca3(PO4)2) that exhibit excellent biocompatibility and osteoconductivity and therefore are widely used for reparation of bony or periodontal defects, coating of metallic implants and bone space fillers.

Flame synthesis of metal salt nanoparticles, in particular calcium and phosphate comprising nanoparticles

Described is a method for the production of metal salts, wherein the cationic metal is preferably selected from Group I to IV metals and mixtures thereof and the anionic group is selected from phosphates, silicates, sulfates, carbonates, hydroxides, fluorides and mixtures thereof, and wherein said method comprises forming a mixture of at least one metal source that is a metal carboxylate with a mean carbon value per carboxylate group of at least 3 and at least one anion source into droplets and oxiding said droplets in a high temperature environment, preferably a flame. This method is especially suited for the production of calcium phosphate biomaterials such as hydroxyapatite (HAp,Cal0(P04)6(OH)2) and tricalcium phosphate (TCP,Ca3(P04)2) that exhibit excellent biocompatibility and osteoconductivity and therefore are widely used for reparation of bony or periodontal defects, coating of metallic implants and bone space fillers.

Nitrogen oxide storage catalysts are used for removing the nitrogen oxides present in the lean-burn exhaust gas of lean-burn engines. Here, the purifying action is based on the nitrogen oxides being stored in the form of nitrates by the storage material of the storage catalyst during a lean-burn operating phase of the engine and the previously formed nitrates being decomposed in a subsequent rich-burn operating phase of the engine and the nitrogen oxides which are being liberated again being reacted with the reducing exhaust gas constituents over the storage catalyst to form nitrogen, carbon dioxide and water. Storage catalysts are thermally aged by high temperatures. The aging is due to sintering of the catalytically active noble metal components of the catalyst and to formation of compounds of the storage components with the support materials. According to the invention, the formation of compounds of the storage materials can be largely reversed by treatment of the storage material with a gas mixture comprising nitrogen dioxide and/or carbon dioxide and water vapor at temperatures of from 300 to 500&#xb0; C. The reactivation can be carried out either directly on the vehicle by setting appropriate exhaust gas conditions or during a routine service by removal of the catalyst from the vehicle and treatment with a gas mixture in an appropriate apparatus.

Method for the reactivation of thermally aged nitrogen oxide storage catalytic converters

The invention relates to a continuous process for enantioselective catalytic hydrogenation of an alpha ketocarbonyl compound such as alpha ketoesters and alpha ketolactones to produce an alpha hydroxy carbonyl compound.

Continuous process for the enantioselective hydrogenation of alpha ketocarbonyl compounds

Process for the preparation of amines

1,n-cyclohexanediamines (n&equals;2, 3, 4) of general formula (I), wherein one of the radicals R to R is an amino group and the two others mean hydrogen, are produced from the corresponding cyclohexanediols and ammonia in the presence of a catalyst containing cobalt, at 100&deg; to 350&deg; C. and 50 to 300 bar. The compounds that can be produced according to the invention are structural elements for polymers, especially polyamides, polyimides, polyurea or polyurethanes, and ligands for cytostatically effective transition metal complexes.

Method for producing cyclohexanediamines

Heterogeneous catalysts

New activated palladium zirconium oxide catalysts on the basis of amorphous or crystallized alloys as well as new palladium zirconium oxide precipitation catalysts. The new catalysts are suitable for totally oxidizing carbon monoxide and hydrocarbons.

Catalyst for the oxidation of carbon compounds

Catalyst for the reductive conversion of nitrogen oxides, optionally accompanied by sulfur dioxides, in waste gases, produced by the impregnation of a support, for example, a TiO.sub.2 support, with a vanadium alkoxide, and treatment of the impregnated support in the oxygen-containing gas current. The catalyst brings about a conversion of the nitrogen oxides even at a relatively low temperature of 150.degree. to 350.degree. C.

Catalyst for reductive conversion of nitrogen oxides in waste gases

Catalytically-active metallic glasses containing at least one element from a subgroup of the periodic system and at least one element from a main group of the periodic system. Process for the production of catalytically-active metallic glasses where the metallic glass is produced from at least one element from a subgroup of the periodic system and at least from one element from a main group of the periodic system. The metallic glasses are activated by self-activation or by an oxidative and/or reductive treatment. The catalytically-active metallic glasses can be used as hydrogenation, oxidation or isomerization catalysts.

Process for the production of catalytically-active metallic glasses

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Opfikon, Switzerland

Alfons Baiker