FIELD: chemistry.
SUBSTANCE: invention can be used in chemical industry. To produce gaseous chlorine by catalytic oxidation of hydrogen chloride, one or more reactors filled with a catalyst are provided, which reactors are connected in series or in parallel. Gas stream containing hydrogen chloride and a gas stream containing oxygen to oxidise the hydrogen chloride-containing gas stream are fed to the first of said one or more reactors. Gas stream containing hydrogen chloride and/or a gas stream containing oxygen to oxidise the hydrogen chloride-containing gas stream are fed to downstream reactors. Portion of the resulting gas stream is directly returned without separating it from the last of said reactors into any of said one or more reactors. Remainder of the resulting gas stream is separated from the last of said reactors to produce gaseous chlorine.
EFFECT: invention prolongs the service life of the catalyst, reduces production costs by effectively regulating and utilising reaction heat.
26 cl, 3 dwg, 2 tbl, 4 ex
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