摘要
介绍戊二醛合成方法的发展沿革,对吡啶法、吡喃法、戊二醇法、戊二酸法、环戊烯法等戊二醛的主要合成方法进行了述评和简单的比较,分析了各种方法的优缺点.随着石油化工的迅速发展,环戊烯(CPE)资源日趋丰富,CPE的氧化法日益受到关注;随着绿色化学的兴起,H2O2水溶液氧化法是研究的焦点;而过氧化氢一步氧化环戊烯法是最可行的工业化生产方法.CPE在不同的催化剂存在下,用H2O2氧化直接制得戊二醛,收率随使用的催化剂及溶剂不同而异.介绍了催化氧化的机理,重点对催化剂进行了分析.催化剂可以分为过渡金属络合物催化剂、过渡金属酸催化剂、杂多酸催化剂三类,如钼催化剂、钨一硼共催化剂、杂多酸催化剂、钨催化剂等.分析了其优缺点,指出了开发研究的方向.
Glutaraldehyde is an important chemical intermediate and fine chemical product. It is applied widely to leather, medicine, medical treatment, environment protect and so on. The synthetic methodologies of glutaraldehyde are summarized, and the characteristics are analyzed. Besides, the processes for synthesis of glutaraldehyde by pyridine method, pyran method, oxidation - dehydrogenation of 1, 5 - pentanediol, and cyclopentene oxidation by H2O2 and so forth are mainly reviewed. One - step oxidation of cyclopentene with 30% hydrogen peroxide in solvent such as aqueous solution, is considered one of the best methodologies of glutaraldehyde.
出处
《宁夏工程技术》
CAS
2004年第1期51-54,共4页
Ningxia Engineering Technology
基金
宁夏自然科学基金资助项目(B024)
