Raney nickel catalysis of aromatic amines

Patent · Tue Mar 05 04:00:00 EST 1985

OSTI ID:5587179

Gray, Th J; Hagstrom, R A; Masse, N G

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 hydrogenating an amine-substituted aromatic compound of the type R1, R2, R3, R4-RING K wherein K is either benzene or naphthalene, R/sub 1/ is a hydrogen atom or an aliphatic chain containing from about 1 to about 12 carbon atoms or a phenyl radical, R/sub 2/ is a hydrogen atom, an amine group or an aliphatic chain containing from about 1 to about 3 carbon atoms, R/sub 3/ is hydrogen or an amine group, and R/sub 4/ is an amine group. 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 Corporation
• Patent Number(s): US 4503251
• OSTI ID: 5587179
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020400* -- Petroleum-- Processing
ACTIVATION ENERGY
ALLOYS
AMINES
AROMATICS
BENZENE
CATALYSTS
CATALYTIC EFFECTS
CHEMICAL COMPOSITION
CHEMICAL REACTIONS
COATINGS
CONDENSED AROMATICS
ELEMENTS
ENERGY
HYDROCARBONS
HYDROGENATION
METALS
MOLYBDENUM
NAPHTHALENE
NICKEL ALLOYS
NICKEL BASE ALLOYS
ORGANIC COMPOUNDS
PLATINUM METALS
RUTHENIUM
TANTALUM
TITANIUM
TRANSITION ELEMENTS