Basf Aktiengesellschaft

Basf Se Corporation

Bayer Aktiengesellschaft

Fraunhofer-gesellschaft Zur Foerderung Der Angewandten Forschung E.v.

Envec Mess- Und Regeltechnik Gmbh + Co.

Hermsforfer Inst. Fur Technische Keramik E.v.

Muw Screentec Filter- Und Präzisionstechnik Aus Metall Gmbh

Reinhardt Beton Gmbh

Hermsdorfer Institut Für Technische Keramik E.v.

Ingolf Voigt

Hannes Richter

Hartwig Voss

Stefan Bitterlich

Armin Diefenbacher

Gunter Schuch

Manfred Noack

Hartwig Voβ

Ronald Schäfer

Jürgen Caro

Hartmut Hibst

Frank Hegner

Andreas Tenten

Elke Maria Schmidt

Andreas Rossberg

Andreas Fischer

Andreas Nickel

Werner Weppner

Jörg Therre

Ralf Kriegel

Joerg Therre

Henry Ludwig

Susanne Kaemnitz

Tilo Reinhardt

Joerg Gruetzner

Dirk Martin

Nadine Kaltenborn

Ute Pippardt

Barbel Voigtsberger

Juergen Caro

Olaf Stange

Gundula Fischer

Michael Stahn

Birgit Köhler

Gregor Dudziak

Jörg GRÜTZNER

Susanne KÄMNITZ

Norbert Lenke

Wolfram Reinhardt

Lothar Goretzki

Thomas Hoyer

Petra Puhlfuerss

The invention relates to a permselective membrane () for removal of water from water-containing gas mixtures, said permselective membrane () being a carbon membrane of a material whose structure is graphite similar and formed by at least one sequence of layers of the material, the layers being arranged in planes, adjacent layers having an average distance between the layers of less than 0.45 nm (4.5 &#x212b;), and the sequence of layers being turbostratically disordered. The invention further relates to processes for preparing membrane () and to uses of membrane () for exchanging water between two gas streams and also for removing water from chemical equilibrium reactions. Assemblies comprising membrane () on porous ceramic carriers () and apparatuses for separating water from a water-containing gas mixture are also described.

Carbon membrane, process for the manufacture of carbon membranes and use thereof

The use of solutions of organic polymers for production of carbon membranes suitable for gas separation, and a process for producing carbon membranes suitable for gas separation, comprising the steps of a) coating a porous substrate with solutions of organic polymers, b) drying the polyester coating on the porous substrate by removing the solvent, and c) pyrolyzing the polyester coating on the porous substrate to form the carbon membrane suitable for gas separation, it being possible to conduct any of steps a) to c) or the sequence of steps a) to c) more than once.

Process for producing carbon membranes

A method for producing membranes which contain at least one solid layer on one side of a porous substrate by treating the side of the support, which is to be coated, with a synthetic solution that forms the solid layer. The inventive method is characterized in that the space located behind the side of the porous support, which is not to be coated, is filled with an inert fluid during the production of the solid layer on the porous support, 'behind' being from the perspective of the support. The pressure and/or the temperature of the fluid is/are selected such that the synthetic solution is essentially prevented from entering in contact with the side of the porous support, which is not to be coated.

Membrane production method

A process for the production of a composite membrane, one or more microporous separation layers comprising a zeolite of the MFI type being produced by hydrothermal synthesis on a porous substrate, wherein one or more additives from the group consisting of linear (C-C)-alcohols, ammonia, primary, secondary and tertiary amines having in each case (C-C)-alkyl radicals, (C-C)-aminoalcohols and (C-C)-ketones are added to the synthesis solution for the hydrothermal synthesis.

Process for producing a composite membrane

A separation module which contains at least one bundle of ceramic capillaries (), in which, for controlling the material transport and the flow in the separation module, a certain distance is established between the capillaries () by joining. The separation module can be used in a variety of ways in the separation of substances by filtration, also in combination with further measures of chemical process engineering.

Separation module, method for its production and its use

Composite membranes comprising at least one porous substrate layer and at least one microporous separation layer, comprising at least one zeolite of the MFI type, are described, the separation layer being produced by a hydrothermal synthesis in which the molar ratio of silicon to aluminum is greater than 120 and the separation layer contains less than 10% by weight of aluminum in elemental or chemically bound form in a zone of at least 100 nm adjacent to the separation layer.

Composite membrane

The invention relates to a fuel cell having a moderate operating temperature which comprises a cathode, an anode and an electrolyte, where at least the cathode comprises a material having the composition (SrCa)AMnBOand

Fuel cell

Oxidative reactions using membranes that selectively conduct oxygen

This process serves to form a long-time-vacuum-tight, high-strength, and corrosion-resistant joint, by means of a joining material, between a first body and a second body each made of sintered, polycrystalline alumina ceramic with a purity greater than 92 wt. % or of sapphire. The joining material is interposed in the form of a paste, a foil, or a slip between the first body and the second body. The joining material has been made from 1) an agglomerate-free, highly disperse, high-purity .alpha.-alumina powder with particles of as high a degree of calcination as possible and of a size not exceeding 100 nm (=10.sup.-7 m), 2) an anorganic oxidic powder of an auxiliary sintering agent with particles of approximately the same size as the particle size of the .alpha.-alumina powder, 3) an organic vehicle which is dissolved or suspended in an organic or aqueous solvant and in which the particles of the respective powder are distributed as evenly as possible. Instead of the anorganic oxidic powder of an auxiliary sintering agent an anorganic oxidic auxiliary sintering agent produced chemically as envelopes around or attachment to the particles of the .alpha.-alumina powder can be used, the total .alpha.-alumina and auxiliary-sintering-agent content of the paste, the foil, or the slip ranging between 50% and 70%. After interposing the joining material the bodies are heated to a temperature of not more than 1,300.degree. C. and then allowing them to cool down.

Process for joining alumina ceramic bodies

Growing community of inventors

Jena, Germany

Ingolf Voigt