CATALYTIC HYDROGENATION OF ALPHA METHYL STYRENE

CATALYTIC HYDROGENATION OF ALPHA METHYL STYRENE

1,272,168. Cumene. ALLIED CHEMICAL CORP. 16 Sept., 1970 [22 Sept., 1969], No. 44244/70. Heading C5E. Cumene is prepared by catalytically hydrogenating, at 24-400‹ C. and 0-5000 p.s.i.g., α-methylstyrene obtained from the decomposition of cumene hydroperoxide the hydrogenation being performed on α-me...

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Bibliographische Detailangaben
Hauptverfasser: EDWIN D. LITTLE, ZAFARULLAH K. CHEEMA
Format: Patent
Sprache:eng
Schlagworte:
ACYCLIC OR CARBOCYCLIC COMPOUNDS
CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
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Zusammenfassung:1,272,168. Cumene. ALLIED CHEMICAL CORP. 16 Sept., 1970 [22 Sept., 1969], No. 44244/70. Heading C5E. Cumene is prepared by catalytically hydrogenating, at 24-400‹ C. and 0-5000 p.s.i.g., α-methylstyrene obtained from the decomposition of cumene hydroperoxide the hydrogenation being performed on α-methylstyrene which is substantially free from hydroxyacetone. Hydroxyacetone may be removed from crude α-methylstyrene by water washing, extractive azeotropic distillation or treatment with an amine which reacts with carbonyl group containing impurities.