| 摘要 |
1307009 Ammoxidation process RHONE POULENC SA 23 Dec 1970 [30 Dec 1969 30 Oct 1970] 61219/70 Heading C2C Nitriles of the formula Y-C#N; wherein Y is an alkylphenyl radical or an alkenyl radical of the formula where R 1 , R 2 and R 3 are hydrogen atoms or alkyl groups with at least one of them being a methyl radical; are obtained by treating compounds of the formula Y-CH 2 -Cl with oxygen and ammonia in the vapour phase in the presence of at least one element of Groups Ib, III, IV, V or VIb of the Periodic Table or of iron or of a derivative thereof. Methacrolein and O-methylbenzaldehyde may be obtained as by-products in the ammoxidation of methallyl chloride and ochloromethyltoluene respectively.. O -Methyl - benzaldehyde may be separated from the reaction product by converting it to its bisulphite addition compound. Specified elements present in the catalyst are copper, aluminium, antimony, iron, tin, lead, titanium, zirconium, vanadium, thallium, boron, phosphorus, silicon and germanium. |
