Basf Aktiengesellschaft

Harman Becker Automotive Systems Gmbh

Basf Se Corporation

Guenther Huber

Wolfgang Habermann

Michael Maier

Thomas Sagcob

Juergen Vogel

Bernd Broghammer

Karl Buehler

Gerd Mauthe

Ernst-Heinrich Pommer

Hardo Siegel

Thomas Heidemann

Hartwig Voss

Alexander Panchenko

Holger Friedrich

Sebastian Ahrens

Ursula Seeliger

Michael Lutz

Josef Guth

Joana Coelho Tsou

Peter Hammes

Wolfgang F Mueller

Albena Kostova

Frank Heimann

Annebart Engbert Wentink

Werner Simmler

Manfred Munzinger

Heinz Neumann

Hubert Engelhardt

Uwe Behling

Axel Franke

Wolfgang Geiger

Michael Wille

Walter Goesele

Elisabeth Gunkel

Reinhard Oettl

Martina Schulz

Matthias Stahl

Gerhard Ruf

Ralph Hamleser

Hans-Juergen Bender

Volker Esswein

Rolf Klassen

The invention relates to a process for the electrochemical separation of hydrogen from a hydrogen-comprising reaction mixture R by means of a gastight membrane-electrode assembly comprising at least one selectively proton-conducting membrane and at least one electrode catalyst on each side of the membrane, where at least part of the hydrogen present in the reaction mixture R is oxidized to protons over the anode catalyst on the retentate side of the membrane and the protons are, after passing through the membrane to the permeate side,

Method for electrochemically removing hydrogen from a reaction mixture

An electrolysis device producing alkali metals from a liquid alkali metal heavy metal alloy, including at least two connected tubes forming an electrolysis unit. Two solid electrolyte tubes are arranged concentrically in each tube and oriented with openings towards one end of each tube such that a first annular gap for guiding a liquid alkali metal forming an anode is located between the inside of the tube and the outside of the solid electrolyte tubes. An alloy inlet and outlet for the liquid alkali metal in each of the tubes leads into the first annular gap of a tube. An inner chamber sealed off from the alloy inlet, first annular gap, and alloy outlet in each solid electrolyte tube receives liquid alkali metal that can be used as a cathode connected to the alkali metal outlet. Two respective closure devices are arranged at the two ends of each tube.

Electrolysis device for the production of alkali metal

An electrolysis cell for preparing alkali metals from a liquid alkali metal heavy metal alloy, including a tube arranged essentially horizontally having a closure device at each of the two ends of the tube. At least one solid electrolyte tube arranged concentrically in the tube and oriented with openings towards one end of the tube such that a first annular gap for conducting a liquid alkali metal, which forms an anode, is present between the inside of the tube and the outside of the solid electrolyte tube. An interior space in the solid electrolyte tube, sealed off from an alloy inlet, first annular gap and an alloy outlet, accommodates liquid alkali metal that can be used as a cathode.

Electrolysis cell for producing alkali metal

A video signal processing system for processing a video data Vand graphic data Dincludes a filter unit, which receives the video data V. The filter unit filters the video data Vto convert the video data Vinto video pictures formatted with a different number of columns and/or lines, and provides a filtered video signal indicative thereof. The filter unit buffers individual pixels and/or lines in a first memory device. A second memory device receives and stores the graphic data Dand the filtered video signal and provides stored signals indicative thereof. A third memory device is connected to the second memory, and stores data received from the second memory device. A mixing unit receives and mixes the stored graphic data and the stored filtered video data to provide a video output signal V.

Video signal processing system

A video signal processing system for processing a video data V and graphic data D includes a filter unit, which receives the video data V . The filter unit filters the video data V to convert the video data V into video pictures formated with a different number of columns and/or lines, and provides a filtered video signal indicative thereof. The filter unit buffers individual pixels and/or lines in a first memory device. A second memory device receives and stores the graphic data D and the filtered video signal and provides stored signals indicative thereof. A third memory device is connected to the second memory, and stores data received from the second memory device. A mixing unit receives and mixes the stored graphic data and the stored filtered video data to provide a video output signal V .

A process for the simultaneous production of dicarboxylic acids and diamines from a) polymers based on polyamides of dicarboxylic acids or their derivatives with diamines, or

Simultaneous production of dicarboxylic acids and diamines by splitting

Metal ions are removed from process wastewaters by using an electrically conducting, cathodically polarized filter-aid layer whose potential is at least 50 mV more negative than the redox potential of the metal ions to be removed, by passing the metal ion-containing water through the filter-aid layer and periodically renewing the filter-aid layer at intervals of from 2 to 180 minutes by backwashing, classifying and precoating processes.

Removal of metal ions from process wastewaters

In a fuel cell which has an activated carbon-containing anode and an activated carbon-containing cathode and is preferably used for the oxidative treatment of waste waters containing oxygen or oxygen-containing compounds, the cathode has been subjected to partial anodic oxidation in a mineral acid at a potential .epsilon..sub.h of from +1.3 to +10V and then doped with molybdenum(VI) and/or tungsten(VI) and/or vanadium(V) compounds, and the anode has been subjected to partial anodic oxidation in an aqueous mineral acid, cathodically reduced in an aqueous mineral acid and then impregnated with cobalt hydroxide and/or nickel hydroxide and/or copper hydroxide and/or zinc hydroxide, the anode and the cathode being separated by a porous polyelectrolyte through which the waste water flows.

Fuel cell

Growing community of inventors

Ludwigshafen, Germany

Guenther Huber