CONTINUOUS PROCESS FOR OXIDATION OF TOLUENE TO BENZOIC ACIDNATHAN FRAGENJOHN G. HUNDLEY
LOOP OXIDATION OF TOLUENE TO BENZOIC ACIDA process of liquid phase oxidation of a hydrocarbon compound involving injection of pure oxygen into a hquid hydrocarbon in a reaction vessel while maintaining the atmosphere of the reaction vessel headspace outside the explosion triangle for the oxygen-...
Toluene is metabolized to benzoic acidand finally, to hippuric acid and benzoylglucuronide.The latter two are excreted in urinealong with small amounts of cresols, formedby direct hydroxylation of toluene. Chronicexposure may cause some accumulation oftoluene in fatty tissues, which may be eliminated...
Based on the UV spectrophotometer and GC-MS analyses, the degradation pathways were observed: first, the methyl group was oxidized leading to the generation of benzoic acid, the benzene ring was subsequently opened by the action of hydr...
The modification of V2O5-Sb2O3/TiO2 catalyst was made to obtain excellent catalytic activities, in terms of toluene conversion, selectivity to benzoic acid and life for the subject reaction. A variety of oxides as second additives to a V2O5-Sb2O3/TiO2 catalyst were examined, and found that ...
9) Though, the methyl side chain in toluene is susceptible to oxidation. Toluene reacts with Potassium permanganate to yield benzoic acid, and with chromyl chloride to yield benzaldehyde alike Etard reaction. 10) The methyl group in toluene undergoes halogenation under free-radical conditions. For...
aFor example, in order to obtain high yield of benzoic acid, toluene oxidation is catalyzed by a homogeneous transition-metal salts as catalysts using a halogenic or acid solvent, which is a key step for synthesizing ε-caprolactam in the Snia–Viscosa process 例如,为了得到高出产量安息香酸,甲...
The heterogeneous catalytic vapour phase oxidation of toluene give benzaldehyde, benzoic acid, maleic acid-and CO_2 as products over LaFeO_3 and LaFeO_3 supported on Al_2O_3 and SiO_2 as catalysts. LaFeO_3 supported on Al_2O_3 has been found to be the most active and selective catalyst...
A process for the manufacture of benzoic acid is described. The process is based on the reaction of toluene in a liquid phase oxidation with an oxygen containing gas in the presence of a phase-transfer catalyst (a), a transition metal salt (b) and traces of a polar solvent, such as ...
(n-propyl)thioncarbamate, diethyl dithiocarbamyl sulfenamide, methylphenyl dithiocarbamyl sulfenamide, benzyl thionpropionate, methylthion cyclohexane carboxylate, isoamyl p-thiontoluate, dithiobenzoic acid, ethyl dithio-n-heptanoate, n-butyl dithiocyclohexanecarboxylate, carboxymethyldithio acid phenyl...