γ-丁内酯合成研究的新进展  

Advances in synthesis of γ -butyrolactone

作　　者：杨骏[1] 郑洪岩[1] 张渊明[1] 唐渝[1] 朱玉雷[2] 

机构地区：[1]暨南大学化学系,广东广州510632 [2]中国科学院山西煤炭化学研究所煤转化国家重点实验室,山西太原030001

出　　处：《现代化工》2004年第3期24-27,共4页Modern Chemical Industry

基　　金：国家自然科学基金(20276077)资助项目

摘　　要：评述了γ-丁内酯合成研究的进展,重点介绍了一些绿色环保的新工艺,如:顺酐加氢与1,4-丁二醇脱氢偶合法、糠醛加氢与1,4-丁二醇脱氢偶合法以及顺酐超临界CO2流体加氢法等,在这些新工艺中广泛采用无毒害的催化剂和溶剂。加氢和脱氢耦合法可将加氢反应的放热用于脱氢反应的供热,减小了过程的热效应,可有效避免反应器的局部过热或过冷;脱氢反应释放的氢可用于加氢反应,整个过程无氢消耗,具有能量和原子的经济性,显著地提高了整个过程的效率。顺酐超临界CO2流体加氢采用无害的溶剂替代昂贵的溶剂,且催化剂和产物易于分离。指出今后的研究方向是开发具有高效、高选择性的催化剂和新的对环境友好的合成工艺。The advances in synthesis of γ-butyrolactone were reviewed. The emphasis was placed on the novel environment-friendly processes, such as the coupling process of the maleic anhydride (MA) hydrogenation and 1,4-butanediol dehydrogenation, the coupling process of furfural hydrogenation and 1,4-butanediol dehydrogenation, the hydrogenation of maleic anhydride in supercritical CO2, in which harmless catalysts and solvents were widely adopted. In the new coupling process which combines the hydrogenation and dehydrogenation reaction into one catalytic system, the heat released by the hydrogenation reaction can be used for the dehydrogenation reaction, and the H2 released by the dehydrogenation reaction can be utilized by the hydrogenation reaction, leading to much easier temperature control and more perfect hydrogen mass balance (with hydrogen recycle but no hydrogen supply and release). This process can be carried out in an atomically economic way from the viewpoints of both material and energy utilization, which could significantly improve the efficiency of the process. The hydrogenation of MA in critical CO2 would be performed with a simple supported catalyst and a harmless solvent thereby accomplishing the goal of green chemistry, further more the catalyst and products are easier separated. It was pointed out that the future study on synthesis of γ-butyrolactone should be mainly concentrated on more efficient and also more selective catalyst and environment-friendly process.

关 键 词：γ—丁内酯 催化加氢 催化脱氢 

分 类 号：TQ426.8[化学工程]