PROCESS FOR THE PREPARATION OF HYDROGEN FLUORIDE AND ANHYDRITE

PROCESS FOR THE PREPARATION OF HYDROGEN FLUORIDE AND ANHYDRITE

In a process for the preparation of hydrofluoric acid and anhydrite by reaction of fluorspar with sulphuric acid in several steps, the last step consists of heating in an indirectly heated rotary pipe and the energy necessary for heating is added to the pipe predominantly by radiation.

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Bibliographische Detailangaben
Hauptverfasser: BECK, HANS-JOACHIM, KAULE, GUSTAV, STOLLE, JOHANN-PETER, RINKES, HANS
Format: Patent
Sprache:eng ; ger
Schlagworte:
CHEMISTRY
COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM,CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THERARE-EARTH METALS
COMPOUNDS THEREOF
INORGANIC CHEMISTRY
METALLURGY
NON-METALLIC ELEMENTS
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Beschreibung
Zusammenfassung:In a process for the preparation of hydrofluoric acid and anhydrite by reaction of fluorspar with sulphuric acid in several steps, the last step consists of heating in an indirectly heated rotary pipe and the energy necessary for heating is added to the pipe predominantly by radiation.