Copper-exchanged zeolite catalysts for the cyclodimerization of butadiene--2. Catalyst structure

Journal Article · Fri Feb 01 00:00:00 EST 1980 · J. Catal.; (United States)

DOI:https://doi.org/10.1016/0021-9517(80)90396-6· OSTI ID:6389400

Maxwell, I E; De Boer, J J; Downing, R S

An X-ray structure analysis of natural faujasite which was exchanged with cupric ions and dehydrated at 150/sup 0/C, showed copper ions at sites I', II, II', and III. On exposure to butadiene, copper cations migrated to site III. The unsaturated coordination and the location at the supercage pore entrances of these ions is apparently responsible for the high selectivity for the conversion of butadiene to 4-vinylcyclohexene. The zeolite framework stabilizes the copper ions but does not contribute towards the reaction otherwise.

• Research Organization: Shell Res. B.V.
• OSTI ID: 6389400
• Journal Information: J. Catal.; (United States), Vol. 61:2
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
BUTADIENE
DIMERIZATION
FAUJASITE
ION EXCHANGE
STRUCTURAL CHEMICAL ANALYSIS
CATIONS
CHEMICAL REACTION KINETICS
COPPER IONS
CYCLOALKENES
DEHYDRATION
HIGH TEMPERATURE
MICROSTRUCTURE
POROSITY
SPECIFICITY
STABILIZATION
ALKENES
CHARGED PARTICLES
CHEMICAL REACTIONS
CRYSTAL STRUCTURE
DIENES
HYDROCARBONS
INORGANIC ION EXCHANGERS
ION EXCHANGE MATERIALS
IONS
KINETICS
MATERIALS
MINERALS
ORGANIC COMPOUNDS
POLYENES
POLYMERIZATION
REACTION KINETICS
SILICATE MINERALS
ZEOLITES
400201* - Chemical & Physicochemical Properties
400301 - Organic Chemistry- Chemical & Physicochemical Properties- (-1987)