Blucher Gmbh

Mhb Filtration Gmbh & Co. Kg

Ernest De Ruiter

Hasso Von Blücher

Bertram Böhringer

Stefan Kämper

Michael Moskopp

Ludovic Ouvry

Jonas Toernblom

Joachim Metz

Gerhard Heuberger

Jost Heiner Kames

Hasso Von Bl&uuml;cher

Disclosure is made of a specific process for producing activated carbon in spherical form, starting with organic polymer spherules based on styrene and divinylbenzene, wherein said polymer spherules contain chemical groups leading to the formation of free radicals and thus to cross-linkages by their thermal decomposition, in particular sulfonic acid groups. Furthermore, various application purposes for the thus-produced activated carbon spherules are named.

Process for producing spherical activated carbon

Disclosed is an adsorbing material (), particularly for producing protective suits, comprising an especially planar supporting material (), an at least substantially air-impermeable, steam-permeable barrier layer (), and an adsorbing layer (). The baffler layer () is applied to the supporting material () and is used as an adhesive layer for the adsorbing layer () that is disposed on the face of the barrier layer (), which lies opposite the supporting material (). The baffler layer () is provided with a steam permeability of at least 20 l/mper 24 h at 25&#xb0; C. and at a thickness of 50 &#x3bc;m.

Adsorbing material and use thereof

Method for producing spherical activation carbon

An adsorption filter material used especially for producing protective materials, such as NBC protective suits, has a first layer, a second layer, and an adsorption layer arranged between the first layer and the second layer. The adsorption layer has a first activated carbon layer with granular or spherical activated carbon particles. The first activated carbon layer additionally contains activated carbon fibers and/or the adsorption layer additionally contains a second activated carbon layer with activated carbon fibers.

Adsorption filter material with high adsorption capacity and low breakthrough behavior

A filter unit for the purification of air includes at least a first filter element, which contains granular, especially spherical, activated carbon as an adsorbent material, and at least a second filter element, which contains a combination of granular, especially spherical, activated carbon and activated carbon fibers as an adsorbent material. The filter unit is suitable especially for use in ventilation plants, ventilation systems, air-conditioning systems and the like.

Air filter unit with several filter elements

The present invention relates to a fresh air filter that comprises a highly air-permissive two- or three-dimensional support made of a cross-linked polymeric foam which includes pores of large dimensions. The support comprises joining portions which are coated with a layer of ion-exchange globules.

Fresh air filter

A process for producing activated carbon granules in which (a) a mixture of distillation residues from isocyanate production, a carbon-containing processing auxiliary substance, and optionally one or more other additives is shaped into flowable granules; (b) the resulting granules are then carbonized at low temperatures, and (c) the carbonized product is activated. The activated carbon granules produced in this way can be used to manufacture adsorbent substrate structures loaded with this product, in particular adsorption filters, filter mats, odor filters, surface filters for protective suits against chemical poisons, and ambient air purifying filters.

Granular activated carbon from distillation residues

A filtering material with adsorbing properties which comprises a flat carrier, the carrier being provided on one or both sides with a binder coating which becomes tacky when heated and to which an adsorption material is adhered. An adsorption filter can be produced from at least two layers of the filtering material. The invention also relates to a process for producing the filtering material.

Filtering material and process for the production thereof, and adsorption filter produced from said filtering material

A method of processing spent ion-exchange resins contaminated with suspended particles, inorganic residues and/or organic foreign matter so as to render the resin ineffective for continued use, by which method this waste material can be processed to produce useful activated carbon particles instead of simply being dumped in a landfill. In accordance with the invention, granular spent organic ion-exchange resin having an ash content of from 5 to 30% is first dried, then carbonized under a substantially inert atmosphere at a temperature of 300 to 900&deg; C., the inert atmosphere containing 0.2 to 4 volume percent oxygen up to 400&deg; C., and finally activated at a temperature of at least 700&deg; C. under a substantially inert atmosphere containing 3 to 50 volume percent steam.

Method of producing activated carbon particles from spent granular organic ion-exchange resin

Granulated activated carbon is produced by an improved process which involves carbonizing pellets of a styrene-divinyl benzene copolymer matrix with concentrated sulfuric acid at temperatures up to at least 750.degree. C., followed by activation at temperatures of 800.degree. C. to 900.degree. C.

Process for producing granulated activated carbon

A filter material suitable for making protective clothing comprising an air-permeable pliable textile support, substantially spherical adsorber particles, and an adhesive discontinuously securing said particles to said textile support, wherein the adsorber particles comprise a copolymer based mainly on styrene and divinylbenzene, eventually crosslinked by CH.sub.2 -bridges.

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Leverkusen, Germany

Ernest De Ruiter