New, highly selective and stable catalytic system for transforming formamides to nitriles

Journal Article · Thu Feb 01 00:00:00 EST 1979 · Am. Chem. Soc., Div. Pet. Chem., Prepr.; (United States)

OSTI ID:6811068

Rodriguez, M; Delmon, B; Portenart, M; Viehe, H G

A new, highly selective and stable catalytic system for transforming formamides to nitriles, a bismuth phosphomolybdate having a 1:12:1 phosphorus-molybdenum-bismuth atomic ratio, gave a conversion of 100% of ethylformamide feed and an at least 91% molar yield of propionitrile at 450/sup 0/C with 3; 50% of water, a liquid hourly space velocity of 3, and an oxygen gas hourly space velocity of 4000 for a 4:1 oxygen-ethylformamide mole ratio. The oxygen was necessary to prevent catalyst deactivation and did not attack reactants or products. These operating variables and the catalyst composition were optimum for the ranges studied. The catalyst retained its activity during a 113 hr run. The reactivities of phenyl-, benzyl-, ethyl-, n-butyl-, and tert.-butyl-formamides were determined at temperatures, oxygen flows, and liquid hourly space velocities of 550/sup 0/C, 4000, and 3 (A) or 450/sup 0/C, 1600, and 0.4 (B); the phenylnitrile was obtained in the maximum yield of 97.5Vertical Bar3< under B conditions; other yields were lower.

• Research Organization: Univ. of Catholique, Louvain
• OSTI ID: 6811068
• Journal Information: Am. Chem. Soc., Div. Pet. Chem., Prepr.; (United States), Vol. 24:1
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
BISMUTH COMPOUNDS
CATALYTIC EFFECTS
FORMAMIDE
CHEMICAL REACTIONS
MOLYBDATES
NITRILES
CHEMICAL REACTION YIELD
ACTIVATION ENERGY
CATALYSTS
EXPERIMENTAL DATA
PERFORMANCE
AMIDES
DATA
ENERGY
INFORMATION
MOLYBDENUM COMPOUNDS
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
OXYGEN COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
YIELDS
400301* - Organic Chemistry- Chemical &amp; Physicochemical Properties- (-1987)