CAJ | 학술논문

苯甲醛是一种重要的化学中间体和美国食品药物管理局认证的添加剂.现代化工生产苯甲醛的工艺存在很多的不足，本文通过向溶剂中添加乙酸酐的方法提高了苯甲醛的选择性和产率，讨论了乙酸酐在甲苯氧化过程中的作用，并获得其优化工艺条件.在该条件下苯甲醛选择性最高达68.69%，产率最高为26.12%，且反应温度(98℃)，反应压力(1 atm O2)都较之前报道的文献温和很多，该反应条件有腐蚀性低、能耗低、副产物少等优点.此外，本文还研发出一种简便有效的催化剂回收方法.
분갑철시일충중요적화학중간체화미국식품약물관리국인증적첨가제.현대화공생산분갑철적공예존재흔다적불족，본문통과향용제중첨가을산항적방법제고료분갑철적선택성화산솔，토론료을산항재갑분양화과정중적작용，병획득기우화공예조건.재해조건하분갑철선택성최고체68.69%，산솔최고위26.12%，차반응온도(98℃)，반응압력(1 atm O2)도교지전보도적문헌온화흔다，해반응조건유부식성저、능모저、부산물소등우점.차외，본문환연발출일충간편유효적최화제회수방법.
Benzaldehyde is an important chemical intermediate and F.D.A.-approved synthetic flavoring substance.There are many drawbacks in the present industrial processes and the improvements are urgently required.In this study,we increased the selectivity and yield of benzaldehyde by simply adding acetic anhydride(AA).The role of AA was investigated and an easier recycling procedure for catalysts was developed.At a mild reaction temperature of 9 8 ℃ and rather low pressure of 1 atm oxygen,which gives the advantages of lower equipment corrosion rate,the lower energy cost,and less by-products,the selectivity and yield of benzaldehyde can reach as high as 68.69% and 26.12%,respectively.