Degussa Aktiengesellschaft

Umicore Ag & Co Kg

Degussa - Huls Ag

Dmc, Inc

Emmanuel Auer

Thomas Lehmann

Stefan Wieland

Karl-Anton Starz

Andreas Freund

Robert Schwarz

Hans Lansink-Rotgerink

Udo Stenke

Michael Gross

Karl Vogel

Conny Vogler

Peter Biberbach

Heike Riedemann

Hauke Jacobsen

Edwin Staab

Andreas Gutsch

Peter Albers

Karsten Ruth

Walter Behl

Rolf Hartung

Markus Pridöhl

Gerhard Heinz

Walther Behl

Process and apparatus for the thermal treatment of pulverulent substances, in which the pulverulent substance is dispersed in a carrier gas and is passed in a continuous manner through a heated reactor where it is thermally treated and is then quenched by a cooling medium and is collected in a gas-solids separating unit.

Process and apparatus for the thermal treatment of pulverulent substances

Electrocatalyst which are formed of a carbon support, which is a carbon black with an H content of >4000 ppm and, as the catalytically active component, platinum or bi- or multi-metallically doped or alloyed platinum. The electrocatalysts are prepared by deposition of noble metals on the carbon black surface. They can be used for the production of fuel cells.

Electrocatalyst for fuel cells

A multimetallic catalyst for hydrogenation of substituted nitroaromatic compounds to give the corresponding aromatic amines. By doping iridium with at least one element from the group manganese, cobalt, iron, nickel, copper and ruthenium, a catalyst is obtained which is characterized by high selectivity.

Multimetallic catalyst and process for preparing substituted aromatic amines

A platinum alloy catalyst on an electrically conductive carbon support which contains an alloy of 40 to 60 atom-% of platinum, 10 to 20 atom-% of rhodium and 20 to 50 atom-% of iron in the form of finely divided alloy particles. The catalyst is characterised in that the average particle size of the alloy particles is less than 10 nm.

Pt/Rh/Fe alloy catalyst for fuel cells and a process for producing the

A platinum/ruthenium alloy catalyst that includes finely dispersed alloy particles on a powdery, electrically conductive carrier material. The catalyst is particularly resistant to carbon monoxide poisoning when the alloy particles display mean crystallite sizes of 0.5 to less than 2 nm.

Anode catalyst for fuel cells with polymer electrolyte membranes

A platinum supported catalyst is disclosed for the anode in a PEM fuel cell with high resistance to poisoning by carbon monoxide. The catalyst contains the noble metals platinum and ruthenium on a finely divided, conductive support material. The two noble metals are not alloyed with each other and are present in highly dispersed form on the support material, wherein the crystallite size of the platinum is less than 2 nm and that of the ruthenium is less than 1 nm.

Co-tolerant anode catalyst for PEM fuel cells and a process for its

Inorganic support materials containing sulphonate and mercapto groups, and a process for the modification of these materials with the corresponding difunctional organosilicon compounds and use thereof as catalysts in acid-catalyzed reactions.

Inorganic support materials containing sulphonate and mercapto groups,

A process for the production of 2,2'-bis(4-hydroxyphenyl)propanes by reacting the corresponding phenols and carbonyl compounds in the presence of organopolysiloxanes containing sulphonate and mercapto groups and acting as a catalyst, consisting of units of the formula

Production of 2,2'-bis (4-hydroxyphenyl) propanes in the presence of

Growing community of inventors

Frankfurt-am-Main, Germany

Emmanuel Auer