Fremgangsmåde til fremstilling af vandfrit natriumsulfid

Fremgangsmåde til fremstilling af vandfrit natriumsulfid

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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Bibliographische Detailangaben
Hauptverfasser: MAGIERA, ROBERT DR, BATZ-SOHN, CHRISTOPH DR, GOEDECKE, RALF DR, RUETZEL, KARL-HEINZ, DESCHLER, ULRICH DR, MUENZENBERG, JOERG DR, ALT, CHRISTIAN, KNAPP, VOLKER, RASIG, GERHARD
Format: Patent
Sprache:dan
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.