Umicore Ag & Co Kg

Heraeus Precious Metals Gmbh & Co. Kg

Heraeus Deutschland Gmbh & Co Kg

Dirk Born

Martin Votsmeier

Holger Rauter

Stefan Zeuner

Dietmar Königs

Artur Wiser

Dietmar Koenigs

Kai Groh

Christian Goerens

Dieter Prasch

The invention relates to a wire made of platinum group metals for producing grid catalysts comprising platinum and rhodium. The invention is characterized in that the wire is made as a sheathed wire and consists of a core and one or more sheaths arranged one over the other outwards from the core in a radially symmetrical manner, and the rhodium concentration in the outermost sheath is lower than the rhodium concentration in the sheath or core arranged directly under the outermost sheath.

Precious metal grid for catalyzing gas phase reactions

The invention relates to a method for producing large stainless steel meshes on flatbed knitting machines, comprising the steps of providing stainless steel wire and knitting a stainless steel mesh, characterized in that one stainless steel mesh each is knitted on the front and the rear needle bed of the flatbed knitting machine at the same time, and these two stainless steel meshes are linked to each other on one side by connecting stitches.

Knitting of precious metal networks and a method using same

Catalyst gauze () for the reduction of the amount of NO in an ammonia oxidation process, containing a first layer () of woven or knitted first wire material (), whereby said first wire material () is made from Pd or a Pd-rich alloy, whereby said first layer () contains a reinforcement in the form of a second wire material () which is woven or knitted among the first wire material () and which has a different composition than the first wire material ().

Catalyst gauze and installation for the catalytic oxidation of ammonia

Methods are provided for the production of bendamustine alkyl ester, bendamustine, as well as derivatives thereof. With the methods the production of these compounds is possible in reproducibly high yields. To this end, hydroxyl-group-containing esters are used as the starting material, whose hydroxyl groups are substituted in a simple way by halogen groups. This substitution is possible in the presence of (i) oxalyl chloride and (ii) dialkylformamide, dialkyl acetamide or dimethyl sulfoxide. In a subsequent reaction, the resulting esters can be hydrolyzed to form the acid.

Process for the production of bendamustine alkyl ester, bendamustine, and derivatives thereof

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Biebergemünd, Germany

Dirk Born