Investigation of oxide predecessors of active structures in Al-Ni-Mo hydrogenation catalysts by means of extractive separation of components. ii. state of nickel and molybdenum in catalysts and products from separation of components, as determined by diffuse reflection and raman spectroscopy
Journal Article
·
· Kinet. Catal. (Engl. Transl.); (United States)
OSTI ID:7229543
Diffuse reflection and Raman spectroscopy have been used in studying aluminanickel-molybdenum oxide catalysts and the products obtained in selective separation of their components by extraction with water and aqua ammonia. It has been shown that water extraction of the catalysts dissolves the bulk particles of polymolybdenum compounds that are localized in the microvoids of the support, and this dissolution is accompanied by breakdown of the Al-Ni-Mo surface compounds, while the oxide monolayer of Mo on the support surface and the nickel inserted into the near-surface layers of ..gamma..-Al/sub 2/O/sub 3/ are retained. Extraction with aqua amomonia destroys the Mo monolayer.
- Research Organization:
- All-Union Sci-Res Institute for Petroleum Processing, Moscow
- OSTI ID:
- 7229543
- Journal Information:
- Kinet. Catal. (Engl. Transl.); (United States), Vol. 27:1,PT.2
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
02 PETROLEUM
ALUMINIUM OXIDES
CATALYTIC EFFECTS
STRUCTURAL CHEMICAL ANALYSIS
MOLYBDENUM OXIDES
NICKEL OXIDES
PETROLEUM
HYDROGENATION
AMMONIA
AQUEOUS SOLUTIONS
CATALYST SUPPORTS
MOLYBDENUM
NICKEL
RAMAN SPECTRA
SOLVENT EXTRACTION
WATER
ALUMINIUM COMPOUNDS
CHALCOGENIDES
CHEMICAL REACTIONS
DISPERSIONS
ELEMENTS
ENERGY SOURCES
EXTRACTION
FOSSIL FUELS
FUELS
HYDRIDES
HYDROGEN COMPOUNDS
METALS
MIXTURES
MOLYBDENUM COMPOUNDS
NICKEL COMPOUNDS
NITROGEN COMPOUNDS
NITROGEN HYDRIDES
OXIDES
OXYGEN COMPOUNDS
REFRACTORY METAL COMPOUNDS
SEPARATION PROCESSES
SOLUTIONS
SPECTRA
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
020400* - Petroleum- Processing
ALUMINIUM OXIDES
CATALYTIC EFFECTS
STRUCTURAL CHEMICAL ANALYSIS
MOLYBDENUM OXIDES
NICKEL OXIDES
PETROLEUM
HYDROGENATION
AMMONIA
AQUEOUS SOLUTIONS
CATALYST SUPPORTS
MOLYBDENUM
NICKEL
RAMAN SPECTRA
SOLVENT EXTRACTION
WATER
ALUMINIUM COMPOUNDS
CHALCOGENIDES
CHEMICAL REACTIONS
DISPERSIONS
ELEMENTS
ENERGY SOURCES
EXTRACTION
FOSSIL FUELS
FUELS
HYDRIDES
HYDROGEN COMPOUNDS
METALS
MIXTURES
MOLYBDENUM COMPOUNDS
NICKEL COMPOUNDS
NITROGEN COMPOUNDS
NITROGEN HYDRIDES
OXIDES
OXYGEN COMPOUNDS
REFRACTORY METAL COMPOUNDS
SEPARATION PROCESSES
SOLUTIONS
SPECTRA
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
020400* - Petroleum- Processing