Determination of the active center in calcium-nickel phosphate dehydrogenation catalyst

Journal Article · Sun Jun 01 00:00:00 EDT 1980 · J. Catal.; (United States)

DOI:https://doi.org/10.1016/0021-9517(80)90105-0· OSTI ID:6200570

Attali, S ^[1]; Vigouroux, B; Lenzi, M; Pescia, J

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1. Ec. Natl. Super. Chim. Toulouse

Determination of the active center in calcium-nickel phosphate dehydrogenation catalyst, used industrially in the dehydrogenation of butenes to butadiene, showed that a stable trivalent nickel ion is involved. Apparently, electrons generated in the first (oxidation) step of the reaction are eliminated by reducing the trivalent to divalent nickel which is reoxidized by protons. The results were obtained by propanol dehydration-dehydrogenation on calcium-nickel phosphate (Ca/sub 8/Ni(PO/sub 4//sub )/6) calcined at 400/sup 0/-900/sup 0/C and by ESR spectroscopy.

• OSTI ID: 6200570
• Journal Information: J. Catal.; (United States), Vol. 63:2
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
BUTENES
DEHYDROGENATION
CALCIUM PHOSPHATES
CATALYTIC EFFECTS
NICKEL PHOSPHATES
PROPANOLS
DEHYDRATION
CATALYSTS
CATIONS
CHEMICAL REACTION KINETICS
ELECTRON SPIN RESONANCE
STRUCTURAL CHEMICAL ANALYSIS
ALCOHOLS
ALKALINE EARTH METAL COMPOUNDS
ALKENES
CALCIUM COMPOUNDS
CHARGED PARTICLES
CHEMICAL REACTIONS
HYDROCARBONS
HYDROXY COMPOUNDS
IONS
KINETICS
MAGNETIC RESONANCE
NICKEL COMPOUNDS
ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
PHOSPHATES
PHOSPHORUS COMPOUNDS
REACTION KINETICS
RESONANCE
TRANSITION ELEMENT COMPOUNDS
400201* - Chemical & Physicochemical Properties
400301 - Organic Chemistry- Chemical & Physicochemical Properties- (-1987)