Bayer Aktiengesellschaft

Bayer Materialscience Ag

Werner Breuer

Karl-Heinz Köhler

Frieder Heydenreich

Helmut Judat

Herbert Ungerechts

Herbert Blaschke

G&uuml;nter Jeromin

A generator including a double-chamber lock comprising two tapered or vertical chambers lined with ceramics or plastics, as a charging device, at least one tubular shaft furnace comprising a water-cooled double jacket of steel, a double-walled, water-cooled inlet nozzle of copper for a gasification mixture, arranged centrally in the tubular shaft furnace above the base, a dry dust-removing device, and optionally a desulfurising device. The double-chamber lock has a mechanism which causes one of the chambers to open when the lower chamber of the double-chamber lock is flushed with inert gas after charging/opening operations, and the inlet nozzle constitutes the mixing member for the constituents of the gasification mixture, the inlet nozzle has a radius of curvature of the surface of the cylindrical portion of the nozzle which continuously becomes smaller to the outlet opening, and the direction of flow of the gases leaving the inlet nozzle is directed upwards.

CO generator

The present invention provides a process for the preparation of carbon monoxide gas (CO gas) that is free of sulfur compounds to the greatest possible extent and a process to use that gas in chemical syntheses, for example, for the synthesis of phosgene from carbon monoxide and chlorine.

Process for the desulfurization of CO gas

A device for mixing and reacting multiphase gaseous and liquid mixtures is disclosed. The device comprise in sequence a first inflow cylindrical space, at least one cylindrical chamber tapering towards said cylindrical space, a second cylindrical space positioned perpendicularly to said first cylindrical space, and an outflow space. Also disclosed is a method of using the device, in particular in the interfacial process for preparing diphenyl carbonates or polycarbonates.

Device for mixing and reacting multiphase gaseous and liquid mixtures and use of this device

Growing community of inventors

Krefeld, Germany

Werner Breuer