Metallgesellschaft Aktiengesellschaft

Outokumpu Oyj

Dietrich Werner

Nikola Anastasijevic

Stefan Laibach

Martin Hirsch

Werner Stockhausen

Martin Rahn

Jean-Paul Nepper

Georg Schmidt

Konrad Schymura

Egon Winkler

Hans Werner Schmidt

Anette Wingen

Walter Pech

Wilhelm Lange

Hans Georgi

Holger Langschied

Heinrich Cieslak

Franz-Ferdinand Sch&uuml;th

Achim Hollnagel

Marcus Runkel

A catalyst for reacting SO with molecular oxygen to form SO is suited for a continuous operation at temperatures of 700&deg; C. and above, when the same consists of a carrier and an active component connected with the carrier, the active component consists of 10 to 80 wt-% iron, the carrier has a BET surface of 100 to 2000 m /g and an SiO content of at least 90 wt-%, and the weight ratio carrier:active component is 1:1 to 100:1.

Catalyst for oxidizing SO2 to SO3 and utilization of the catalyst in a method for producing sulfuric acid

This invention concerns a process in which gases or gas mixtures are reacted in the presence of an ion-conductive liquid in an electro-chemical cell. The cell has at least one anode (,) and at least one cathode (,) to which an external electrical constant potential is applied so that a direct current flows through the ion-conducting liquid. In the lower region of the cell a sump (,) of ion-conductive liquid is located into which the electrodes are partially immersed. At least 20% of the entire surface of at least one of the electrodes is located outside the sump in an upper region through which gas flows. This upper region of the cell is sprayed or irrigated with the ion-conductive liquid and the electrode surface at least partially wet. During this wetting process, the gas flows across the electrode surface.

Process for carrying out chemical reactions in an electrochemical cell

Electrolytic cell with removable bipolar electrodes

Fluidized bed process for producing alumina from aluminum hydroxide

A temperature measurement device for rotary kilns comprises a stripping sleeve rigidly mounted in a bore or the shell of a rotary kiln and has one end portion extending into the rotary kiln. A ceramic ring is mounted at the one end portion of the sleeve and a protective tube is slidably mounted in the stripping sleeve and through the opening in the ceramic ring. A thermocouple is disposed in the protective tube at one end portion thereof that corresponds to the one end portion of the stripping sleeve. The protective tube is lifted to retract its one end portion until the end thereof is disposed in the ceramic ring thereby scraping off any crust thereon and the tube is then lowered to such an extent that the one end portion thereof protrudes from the ceramic ring so that temperature measurement can be effected.

Temperature measuring device for rotary kilns

Growing community of inventors

Messel, Germany

Dietrich Werner