Preparation and properties of Raney nickel-cobalt catalysts

Journal Article · Tue Nov 01 04:00:00 EST 1983 · J. Catal.; (United States)

DOI:https://doi.org/10.1016/0021-9517(83)90097-0· OSTI ID:5318428

Orchard, J P; Tomsett, A D; Wainwright, M S; Young, D J

The leaching behavior in aqueous NaOH of Al-Co-Ni alloys containing 50 wt % Al and approximately 0, 10, 20, 30, 40, and 50 wt % Co has been examined. The alloys were partially leached and the product was examined metallographically. All of the alloys leached rapidly, with the relative reactivity of the phases in the nickel-aluminum alloy being Al(Ni) > NiAl/sub 3/ > Ni/sub 2/Al/sub 3/. All cobalt-aluminum phases were found to leach rapidly to completion. Catalysts prepared from the Al-Co-Ni alloys were characterized by physical adsorption, chemisorption, and temperature-programmed desorption experiments. The H/sub 2/ evolved in the TPD tests decreased with cobalt addition and seems related to the Ni part of the catalyst. Studies of the hydrogenation of cyclohexene and adiponitrile at 25/sup 0/C and 101 kPa were used to evaluate catalyst activities. The rates of hydrogenation of both compounds increased in the order cobalt less than or equal to nickel-cobalt < nickel. 17 references, 3 figures, 8 tables.

• Research Organization: Univ. of New South Wales, Kensington, Australia
• OSTI ID: 5318428
• Journal Information: J. Catal.; (United States), Journal Name: J. Catal.; (United States) Vol. 84:1; ISSN JCTLA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201 -- Chemical &amp; Physicochemical Properties
400301* -- Organic Chemistry-- Chemical &amp; Physicochemical Properties-- (-1987)
ADSORPTION
ALKALI METAL COMPOUNDS
ALKANES
ALLOY SYSTEMS
ALLOYS
ALUMINIUM ALLOYS
AQUEOUS SOLUTIONS
CATALYSTS
CATALYTIC EFFECTS
CHEMICAL ANALYSIS
CHEMICAL PREPARATION
CHEMICAL REACTIONS
CHEMISORPTION
COBALT ALLOYS
COHERENT SCATTERING
CYCLOALKANES
CYCLOHEXANE
DATA
DESORPTION
DIFFRACTION
DISPERSIONS
DISSOLUTION
ELEMENTS
EXPERIMENTAL DATA
HIGH TEMPERATURE
HYDROCARBONS
HYDROGEN
HYDROGEN COMPOUNDS
HYDROGENATION
HYDROXIDES
INFORMATION
ION MICROPROBE ANALYSIS
LEACHING
LOW PRESSURE
MEDIUM TEMPERATURE
METALLOGRAPHY
MICROANALYSIS
MIXTURES
NICKEL ALLOYS
NITRILES
NITROGEN
NONDESTRUCTIVE ANALYSIS
NONMETALS
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
OXYGEN COMPOUNDS
POROSITY
PRESSURE DEPENDENCE
PROGRAMMING
QUANTITY RATIO
SCATTERING
SEPARATION PROCESSES
SODIUM COMPOUNDS
SODIUM HYDROXIDES
SOLUTIONS
SORPTION
SORPTIVE PROPERTIES
SURFACE AREA
SURFACE PROPERTIES
SYNTHESIS
TEMPERATURE DEPENDENCE
TEMPERATURE MEASUREMENT
TERNARY ALLOY SYSTEMS
X-RAY DIFFRACTION