PREPARATION OF CAMPHOR WITH ISOBORNEOL BY GAS PHASE DEHYDROGENATION

PREPARATION OF CAMPHOR WITH ISOBORNEOL BY GAS PHASE DEHYDROGENATION

This invention belongs to composition method of camphor. The ios-borneol proceeds gas phase decompression and dehydrogenation in fixed bed with zinc-calcium as catalyst. The dehydrogenation temp. is 240-320 deg.C., pressure is 0-60 mm Hg, space shifting of matter is 0.05-1.0 per hr. The technologic...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: CHENG QINGZHI, YANG GUOLI ET AL, JI YUNLUNG
Format: Patent
Sprache:eng
Schlagworte:
ACYCLIC OR CARBOCYCLIC COMPOUNDS
CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
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Beschreibung
Zusammenfassung:This invention belongs to composition method of camphor. The ios-borneol proceeds gas phase decompression and dehydrogenation in fixed bed with zinc-calcium as catalyst. The dehydrogenation temp. is 240-320 deg.C., pressure is 0-60 mm Hg, space shifting of matter is 0.05-1.0 per hr. The technologic method provided by this invention has the adventages of simple operation, capably continuous proceeding, no need of solvent and no three-wastes. The conversion rate of iso-borneol is more than 98% and selectivity is more than 98%.