Metallgesellschaft Aktiengesellschaft

Ronald Apel

Georg Schmidt

Egon Winkler

Roland Fach

Hartmut Wagner

Peter-Bernhard Stougie

Dieter Knoblich

Nitrosylsulphuric acid is mixed in a mixing reactor with sulphuric acid saturated with SO,. The acid mixture is led into a saturating reactor into the bottom region of which water and an SO,-containing gas are introduced. The gas partially serves as stripping gas inside the saturating reactor. SO,-saturated, No,-free sulphuric acid with 5 to 60 wt % H,SO,is removed from the bottom region of the saturating reactor and part thereof is mixed with nitrosylsulphuric acid in the mixing reactor.

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Moers, Germany

Ronald Apel