Bayer Materialscience Ag

Michel Haas

Tim Loddenkemper

Rainer Bruns

Dietmar Wastian

Bernd Rüffer

Chlorine is prepared by catalytic oxidation of a hydrogen chloride stream having a content of sulfur in elemental or bonded form of less than 100 ppm, preferably less than 50 ppm, more preferably less than 5 ppm, most preferably less than 1 ppm, based on the weight of the hydrogen chloride stream.

Process for the oxidation of a gas mixture containing hydrogen chloride

Processes for separating carbon monoxide from a hydrogen chloride-containing gas, which comprise reacting the carbon monoxide with chlorine to form phosgene and then optionally separating the phosgene from the hydrogen chloride-containing gas. The hydrogen chloride-containing gas that is used preferably derives from a phosgenation or isocyanate forming reaction.

Growing community of inventors

Dormagen, Germany

Michel Haas