Agfa-gevaert Ag

Henkel Kommanditgesellschaft Auf Aktien

Cognis Deutschland Gmbh & Co. Kg

Roland Hourticolon

Juergen Latzel

Gunther Koepke

Gerd Goebel

Franz-Josef Carduck

Hans Frenken

Guenther Demmering

Rudolf Meyer

Eberhard Peukert

Lothar Friesenhagen

Heinrich Bussmann

Hans-Peter Kubersky

Julius Geiger

Udo Kreutzer

Helmut Schaffer

Friedrich Hommers

Gerhard Pogrzeba

Hans-Guenther Richard

Axel Geisler

Alfred Neworal

Rudolf Hannappel

Reinhard Eltner

Heinz Auweiler

Gerhard Roth

Petro Mendia

Hermann Kloettschen

A liquid distributor, for a substantially vertical reactor with a fixed bed catalyst, in the form of a channel distributor with drainage outlets and further comprising an internal cleaning mechanism with cleaning elements to be lowered into the openings of the drainage outlets, is disclosed.

Liquid distributor with cleaning mechanism

Naturally occurring fats, oils and fatty derivatives are continuously hydrogenated to fatty alcohols in a fixed-bed reactor in the presence of hydrogen in excess and hydrogenation catalysts under static pressures of 50 to 300 bar and at temperatures of 160 to 320&deg; C. The liquid product is cooled and the excess hydrogen is returned to the reactor entrance by a gas circulation pump as a recycle gas after separation of the liquid product. The expense involved in cooling and reheating the recycle gas is eliminated without any reduction in the quality of the fatty alcohol produced providing the recycle gas is returned to the reactor entrance without reheating and the hydrogenation reaction is carried out under static pressures of at least 200 bar.

Process for the production of fatty alcohols

A method for the removal of a spent catalyst from a fixed-bed reactor is disclosed, wherein a suction hose, in which a high pressure hose comprising a high-pressure nozzle is integrated, is introduced into the reactor, the catalyst is then size-reduced by water under high pressure passed through the nozzle, the catalyst/water mixture is removed under suction and is optionally collected in a separator.

Method for emptying fixed-bed reactors

An apparatus for scraping solid materials from a conveyor belt comprising an elongate segmented scraper blade formed from a plurality of individual component blades which are aligned adjacent one another in a blade holder and which are supported to engage the conveyor belt under variable linear pressure, each component blade being adjustably attached by a flexible member to provide an elongate segmented scraping edge, the segments of which can independently and automatically flex to provide an elongate scraping edge which conforms to an irregular conveyor surface.

Apparatus for scraping solid materials from a conveyor surface

The invention relates to a web guide roller for a web which is required to be moved at a high speed, having cavities arranged on its surface for receiving the air carried with the moving web, whereby a finely branched network of compression chambers is arranged on the surface between plateau-like smoothly ground and polished areas on which the web lies in contact. Further the invention relates to a process for the production of this web guide rollers for use at high speed.

Web guide roller for use at high speeds and process for producing the

The electrical conductivity of the surface of eloxated aluminium rollers in the pores of the eloxation layer a metal is deposited which has little or no tendency to corrosion.

Anodized aluminium rollers with improved electrical conductivity and a

The invention relates to an apparatus and a method for cambering the edge of webs of thermoplastic materials on one or both sides wherein the edges of the web are continuously guided through stamping units and the edges are provided with stampings. The thermoplastic cambering is made by utilizing the energy of ultrasonic vibration. The stamping unit consists of a stamping wheel with pressure apparatus for the wheel and a stationary ultrasonic head arranged beneath it with a sonotrode. A calibration apparatus can be arranged downstream of the stamping unit.

Method and an apparatus for cambering the edges of webs of thermoplastic

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Leichlingen, Germany

Roland Hourticolon