METHOD FOR RECOVERING 1-BUTENE/2-BUTENE

PURPOSE:To recover the subject compound by selectively reacting, removing and purifying isobutylene in a 4C hydrocarbon mixture in the presence of a catalyst obtained by subjecting activated or acid clay to calcining treatment at a specific temperature in air at a specified temperature. CONSTITUTION...

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Bibliographische Detailangaben
Hauptverfasser:	MITA YUKIMITSU, MIENO MICHIHIRO, ISAKA KENICHI
Format:	Patent
Sprache:	eng
Schlagworte:	ACYCLIC OR CARBOCYCLIC COMPOUNDS APPARATUS THEREFOR CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY GENERAL METHODS OF ORGANIC CHEMISTRY METALLURGY ORGANIC CHEMISTRY PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL THEIR RELEVANT APPARATUS TRANSPORTING
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Beschreibung
Zusammenfassung:	PURPOSE:To recover the subject compound by selectively reacting, removing and purifying isobutylene in a 4C hydrocarbon mixture in the presence of a catalyst obtained by subjecting activated or acid clay to calcining treatment at a specific temperature in air at a specified temperature. CONSTITUTION:Isobutylene in a 4C hydrocarbon mixture containing the isobutylene and 1-butene and/or 2-butene is selectively oligomerized, removed and purified in the presence of a catalyst obtained by subjecting activated or acid clay at 200-600 deg.C, preferably 400-500 deg.C temperature in air for 1-10hr, preferably 3-5hr at 50-150 deg.C, preferably 70-100 deg.C temperature under 5-40kg/cm pressure to suppress oligomerization of the 1-butene or isomerization thereof to 2-butene and recover the 1-butene and/or 2-butene useful as a comonomer for high-density polyethylene or low-pressure process low-density polyethylene in a high concentration.