The new process of producing adamantane compounds
Tricyclo (5.2.1.0/sup 2,6/) decane was preferably rearranged to adamantane over sodium Y type zeolite exchanged with 28.4-58.7Vertical Bar3< lanthanum(III), either alone (at 250/sup 0/C) or as a support for a 0.75Vertical Bar3< platinum/0.25Vertical Bar3< rhenium (250/sup 0/C) or platinum-rhenium-cobalt catalyst. The zeolitic catalysts were superior to several aluminum halide and platinum/alumina catalysts tested, since the zeolites exhibited sufficient activity, a longer life, and easier regenerability, via hydrogen treatment at 400/sup 0/C. For industrial use, 1,3-dimethyladamantane was preferably synthesized by hydroisomerizing tetracyclo (6.2.1.1/sup 3,6/0/sup 2,7/) dodecane (TCDD, made from ethylene and dicyclopentadiene) at 250/sup 0/C over Vertical Bar3: 50Vertical Bar3< lanthanum-exchanged zeolite either alone or as a support for 3Vertical Bar3< nickel, 0.75Vertical Bar3< platinum/0.25Vertical Bar3< rhenium, or platinum-rhenium-nickel, and also over silica/alumina-supported platinum-rhenium-nickel. DMA was also synthesized by isomerizing cyclododecatriene to acenaphthenes, such as perhydroacenapthene (PHA), over Y zeolites exchanged with lanthanum(III) or calcium(II), and in a second step, isomerizing PHA over platinum-rhenium-nickel supported on lanthanum zeolite.
- Research Organization:
- Idemitsu Kosan Co. Ltd.
- OSTI ID:
- 6684710
- Report Number(s):
- CONF-790415-
- Journal Information:
- Am. Chem. Soc., Div. Pet. Chem., Prepr.; (United States), Journal Name: Am. Chem. Soc., Div. Pet. Chem., Prepr.; (United States) Vol. 24:1; ISSN ACPCA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
400301* -- Organic Chemistry-- Chemical & Physicochemical Properties-- (-1987)
ADAMANTANE
ALKANES
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
CATALYSTS
CATALYTIC EFFECTS
CHALCOGENIDES
COBALT
COMPARATIVE EVALUATIONS
CYCLOALKANES
ELEMENTS
HYDROCARBONS
INORGANIC ION EXCHANGERS
ION EXCHANGE MATERIALS
MATERIALS
METALS
MINERALS
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PLATINUM
PLATINUM METALS
RHENIUM
SYNTHESIS
TRANSITION ELEMENTS
ZEOLITES