发明授权
US4140722A Oxidation of substituted p-xylenes to substituted terephthalaldehydes 失效
取代的对二甲苯氧化成取代的对苯二甲醛

Oxidation of substituted p-xylenes to substituted terephthalaldehydes
摘要:
Substituted terephthalaldehydes are produced by the vapor phase oxidation of similarly substituted p-xylenes in the presence of a catalyst mixture of tungsten in the form of an oxide or silicotungstic acid, molybdenum in the form of an oxide and optionally bismuth in the form of an oxide.
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