PRODUCTION OF D,L-MENTHOL FROM D-MENTHOL

Continuous process for prodn. of d,l-menthol by catalytic conversion of optically active d-menthol in the presence of hydrogen at a H2 press. of 50-350 bar and a temp. of 200-350 degrees C over a solid catalyst bed of carrier-free catalyst bodies obtd. by redn. of pressed bodies of powdered Ni-, Mn-...

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Hauptverfasser:	GERUTOOMIHIYAERU PETORUKU, GERUHARUTO DARUSOU
Format:	Patent
Sprache:	eng
Schlagworte:	ACYCLIC OR CARBOCYCLIC COMPOUNDS CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY METALLURGY ORGANIC CHEMISTRY PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL THEIR RELEVANT APPARATUS TRANSPORTING
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Beschreibung
Zusammenfassung:	Continuous process for prodn. of d,l-menthol by catalytic conversion of optically active d-menthol in the presence of hydrogen at a H2 press. of 50-350 bar and a temp. of 200-350 degrees C over a solid catalyst bed of carrier-free catalyst bodies obtd. by redn. of pressed bodies of powdered Ni-, Mn- and alkaline earth metal (hydr)oxides and opt. (hydr)oxides of elements of subgroup V and/or VI of the periodic system.