Raney nickel alloy expanded mesh hydrogenation catalysts
Hydrogenation processes utilizing improved Raney nickel alloy catalysts are disclosed. The catalyst comprises a monolithic mesh type structure of a nickel alloy having an integral Beta phase Raney Ni /SUB x/ M/sub 1//sub -/ /SUB x/ coating on its outer surfaces, where M is a catalytic activator selected from the group consisting of molybdenum, ruthenium, tantalum and titanium and where x, the weight fraction of nickel in the combined alloy, is between about 0.80 and about 0.95. The catalyst is effective in processes for hydrogenation of aromatic compounds based on benzene or naphthalene and supplemented by a hydrogen atom or an aliphatic chain containing from about 1 to about 9 carbon atoms or a phenyl radical, a hydrogen atom or an aliphatic chain containing from about 1 to about 3 carbon atoms, and hydrogen atoms, hydroxy, or nitro groups. When this catalyst is used, substantially higher reactant flow rates and lower operating temperatures are possible as compared to conventional fluidized bed granular catalysts.
- Assignee:
- Olin Corp.
- Patent Number(s):
- US 4513149
- OSTI ID:
- 6477759
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
020400* -- Petroleum-- Processing
ALLOYS
AROMATICS
BENZENE
CATALYSTS
CATALYTIC EFFECTS
CHEMICAL ACTIVATION
CHEMICAL COMPOSITION
CHEMICAL REACTIONS
COMPARATIVE EVALUATIONS
CONDENSED AROMATICS
CRYSTAL STRUCTURE
HYDROCARBONS
HYDROGENATION
MICROSTRUCTURE
MOLYBDENUM ALLOYS
NAPHTHALENE
NICKEL ALLOYS
ORGANIC COMPOUNDS
PLATINUM METAL ALLOYS
QUANTITY RATIO
RUTHENIUM ALLOYS
TANTALUM ALLOYS
TITANIUM ALLOYS