PROCESS FOR PREPARING ANHYDROUS SODIUM SULFITE

PROCESS FOR PREPARING ANHYDROUS SODIUM SULFITE

In the production of anhydrous sodium sulfide, sodium sulfide containing 35-45% water with mixing is passed through an apparatus, in which the product temperature of approximately 20 degrees C at the place of solid injection gradually rises to at least 180 degrees C while the subpressure is maintain...

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Hauptverfasser: RUTZEL KARL-HEINZ, RASIG GERHARD, MAGIERA ROBERT DR, MUNZENBERG JORG DR, DESCHLER ULRICH DR, BATZ-SOHN CHRISTOPH DR, GOEDECKE RALF DR, ALT HANS CHRISTIAN, KNAPP VOLKER
Format: Patent
Sprache:cze ; eng
Schlagworte:
CHEMISTRY
COMPOUNDS THEREOF
INORGANIC CHEMISTRY
METALLURGY
NON-METALLIC ELEMENTS
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Beschreibung
Zusammenfassung:In the production of anhydrous sodium sulfide, sodium sulfide containing 35-45% water with mixing is passed through an apparatus, in which the product temperature of approximately 20 degrees C at the place of solid injection gradually rises to at least 180 degrees C while the subpressure is maintained at less than 20, preferably less than 11 torr.