Deutsche Carbone Ag

Gft Ingenieurburo Fur Industrieanlagenbau

Other

Hartmut E Bruschke

Hermann A Steinhauser

Guido Ellinghorst

Walter H Schneider

Jean M Neel

Quang T Nguyen

Frank Marggraff

Joel Huret

Hartmut Ganz

Raif Abouchar

A membrane comprising a pore-free separation layer, wherein the separation layer consists of poly-dimethyl aminoethyl methacrylate homopolymers or N-vinylpyrrolidone dimethyl aminoethyl methacrylate copolymer or N-vinylcaprolactam dimethyl aminoethyl methacrylate copolymer or N-vinylcaprolactam N-vinylpyrrolidone dimethyl aminoethyl methacrylate terpolymers.

Pervaporation membranes and use thereof

Process for the manufacture of composite plasma membranes with the production of a pore-free impermeable polymer layer on a porous substrate through the plasma polymerization of a gaseous mixture, said gaseous mixture containing a hydrocarbon as the matrix-forming component and a nitrogen-, silicon-, sulphur- or phosphorus-containing inorganic compound as the non-matrix-forming component and an oxygen-containing compound, by means of glow discharge in an electrical alternating field. The pore-free impermeable polymer layer is produced directly on a porous substrate without the use of an impermeable intermediate layer, said porous substrate having a pore diameter of less than 100 nm on the side facing the pore-free polymer layer. The composite plasma membranes are used for separating C.sub.1 -C.sub.3 alkanols from mixtures thereof with other organic liquids using the method of pervaporation.

Process for the manufacture of a composite plasma membrane and use

A process for the separation of liquid component mixtures by combined pervaporation-vapor permeation with a feed flow in the form of a vapor-liquid mixture being employed and the feed flow being passed from bottom to top as a vapor-liquid mixture over a vertically arranged membrane, so that a permanent thorough mixing of vapor and liquid results, and no stationary liquid film is able to form on the surface of the membrane.

Membrane process for separation of fluid mixtures

A plate module and its use for separating fluid mixtures according to the methods of pervaporation and vapor permeation is comprised of a feed plate, a cover plate, a gasket, and a membrane to define at least one feed compartment and one permeate compartment. The feed compartment is connected to supply and removal ducts. The feed plate is formed as a single plate with no welding or deformation. Changes in the feed plate and distribution ducts can be easily effected without additional costs.

Plate module and its use for separting fluid mixtures

Composition membrane for separating water from fluids containing organic

A multi-layer membrane having a porous backing layer of polyacrylonitrile, polysulfone or the like, and an active separating layer of polyvinyl alcohol or cellulose acetate. The membrane is particularly suitable or the separation of water-alcohol mixtures according to the pervaporation process.

Multi-layer membrane and the use thereof for the separation of liquid

A multi-layer membrane having a porous backing layer of polyacrylonitrile, polysulfone or the like, and an active separating layer of polyvinyl alcohol or cellulose acetate. The membrane is particularly suitable for the separation of water-alcohol mixtures according to the pervaporation process.

A membrane module is disclosed which comprises at least one elongated, planar membrane element which is composed of two membranes aligned opposite one another so as to define a closed cavity into which active surfaces of both membranes face. At both ends of the membrane element, separate conduits attached to the two membranes are in communication with the cavity, such that the feed flow from one conduit to the other through the cavity is radial, relative to the membrane element. The membrane element can be spirally wound around one or both of the conduits.

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Nussloch, Germany

Hartmut E Bruschke