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Wang Guangxin;Zhou zhiqiang;Liu Daojun;Zhang Shusheng(Qingdao Institute of Cheniical Technology,Postcode 266042)  
An elctro-synthesis method for preparation of o-toluic aldehyde through electro-oxidation of o-xylene with Mn(m)is presented in this pap0。The oxidant Mn(Ⅲ)was obtained fromelectrolysis of Mn(Ⅱ)and could be used repeat-edly.In the presence of an excess of o-xylene,pseudo-apparent rate constants of the reaction forpreparation of o-toluic aldehyde at several tem-peratures(30~60℃)were measured and theapparent activation energy of this reaction in thepresence of tetrabutyl ammonium bromide wasdetermined,△E_a=31.3KJ·mol ̄-1.
【CateGory Index】: TQ244.3
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