METHOD OF PREPARING PALLADIUM CATALYST FOR HYDROGENATING ACETYLENE

FIELD: chemistry. ^ SUBSTANCE: invention relates to methods of preparing catalysts for purifying ethane-ethylene fractions of pyrolysis gas from acetylene impurities through selective hydrogenation. The invention describes a method of preparing a palladium catalyst on an alumina support for selectiv...

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Hauptverfasser:	JARULLIN RAFINAT SAMATOVICH, GUMEROV FARID MUKHAMEDOVICH, JAKUSHEV IL'GIZAR ALJALTDINOVICH, BILALOV TIMUR RENATOVICH, KHANNANOV AJRAT FANISOVICH, GABITOV RASHIT FARIZANOVICH, KHARLAMPIDI KHARLAMPIJ EHVKLIDOVICH, FEDOROV GENNADIJ IL'ICH
Format:	Patent
Sprache:	eng ; rus
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:	FIELD: chemistry. ^ SUBSTANCE: invention relates to methods of preparing catalysts for purifying ethane-ethylene fractions of pyrolysis gas from acetylene impurities through selective hydrogenation. The invention describes a method of preparing a palladium catalyst on an alumina support for selective hydrogenation of acetylene in an ethane-ethylene fraction, which involves preparation of a support, heating the support and a solution of a palladium organometallic complex, saturation of the support with the solution, removal of solvent from the support and reduction of the metal. The method is distinguished by that, heating and saturation are carried out at 1.0ëñT/Tcrëñ1.2 and 1.3ëñP/Pcrëñ5.6 with benzonitrile dissolved in carbon dioxide or with styrene or with a cyclohexane complex of palladium chloride. The solvent is removed from the support through simple release of pressure to P