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Catalytic Oxidation of alcohol in the presence of oxygen under the action of the corresponding acid is an important reaction in organic synthesis , and has a very wide range of applications in organic synthesis and fine chemicals . With the continuous improvement of environmental voice in recent years , the traditional strong oxidant because of its toxic and highly corrosive and is no longer suitable for the needs of the development of the times . Therefore the use of clean , environmentally O2 , H2O2 as an oxidant , the development of green , mild and efficient catalytic system organic alcohol oxidized to the corresponding acid , has become a hotspot of current research . The this paper coatings, widely used in the ink industry isooctanoate target product , step isooctanol oxidized ethylhexanoate . Oxidant cheap and easy to get the oxygen , using homemade catalyst , by optimizing the preparation conditions of the catalyst as well as the conditions of the reaction process , the establishment of efficient general-purpose , environmentally friendly , highly selective oxidation of alcohols . Al2O3 as carrier , a series of transition metal oxide catalysts were prepared by impregnation , screened two active best single component catalyst , ZnO/Al2O3 and MgO/Al2O3 oxidized isooctanol to experiment . Examine both catalyst preparation conditions for the catalyst activity , and catalysts were characterized by means of XRD, BET, SEM . The results showed that the calcination temperature of 800 ° C , the loading of 3% ZnO/Al2O3 catalyst has high catalytic activity , isooctanol conversion rate of 42.4% , and differences bitterness yield of 18.1 % . Spinel structure of the catalyst produced by the high temperature calcination has a key role on the catalyst activity increases . By the sol - gel prepared a series of powdered spinel catalyst . Emphasis on the sol - gel prepared ZnFe2O4 the catalytic activity , as well as active distribution ratio and calcination temperature of the catalyst activity , found that the catalytic activity than the single - component catalyst increased . Effects of oxidation reaction of isooctanol amount of catalyst, reaction temperature, reaction time , and other process conditions on the catalyst activity and the mechanism and kinetics of the reaction studied . The results indicate that the radical mechanism isooctanol catalytic oxidation mechanism of isooctanoate apparent activation energy 93.4kJ/mol, and significantly reduce the activation energy when compared to not using the catalyst .
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