SO42-_O2_Fe3O4_TiO2催化剂的制备及其性能研究深度思考.doc

唐 山 学 院 毕 业 设 计 设计题目：SO42-/ZrO2/Fe3O4/TiO2催化剂的制备及其性能研究 系 别： 环境与化学工程系 班 级： 11化学工程与工艺（1）班 姓　 　名： 范洪涛 指 导 教 师： 李海花 2015年6月6日SO42-/ZrO2/Fe3O4/TiO2催化剂的制备及其性能研究 摘 要 固体超强酸催化剂是近年来研究和开发的一种新型固体酸催化剂，它具有酸性强度高，易分离等特点，具有非常重要的应用价值。它可以克工业上传统催化剂(如浓硫酸、浓磷酸等无机液体酸等金属卤化物）的诸多弊端：易腐蚀、污染环境、难分离、副反应多、产物选择性低、催化活性不高等。SO42-ZrO2型固体超强酸催化剂即为其中一种，这种超强酸催化剂具有高催化活性、水热稳定性、产物与催化剂易分离、不腐蚀设备、不污染环境和重复使用等优点。 利用化学共沉淀法制备磁性基质，并与固体酸氧化物复合合成既具有磁性又具有较高酸强度的磁性固体酸催化剂。通过催化二苯甲醇与乙酸乙酰乙酯等亲核试剂的反应，来检测该催化剂的活性，并通过超强磁铁来分离反应产物与催化剂。结果表明该催化剂有很强的催化活性，二苯甲醇与乙酰乙酸乙酯反应产率可到88.33%。 .关键词: 磁性 催化剂 氯氧化锆Study on the Preparation and Properties of SO42-/ZrO2/Fe3O4/TiO2Catalyst Abstract Solid superacid catalyst is a new type of catalyst materials which have been developed in recent yeas. This catalyst has been proved to be a very effective from the viewpoint of activity, selectivity and reusability in the preparation of various important chemicals which have a number of difficulties with homogeneous catalysts, and can overcome such as corrosion, pollution, more vice-reactions, difficult of separation,and low selectivity. SO42-/ZrO2 is a kind of them, which has such advantages as high activity, hydrothermal stability, easy of separation of production with catalyst, non-corrosion and non-environment polluting. Magnetic matrix was prepared by chemical coprecipitation, then with solid acid oxide composite. The catalyst had high acid strength and magnetic. The activity of the catalyst was detected by catalytic reaction of benzhydrol with ethyl acetate and other affinity reagents. And through the super magnet to separate the reaction product and catalyst. It was found that catalyst showed high catalytic performance. And the conversion rates of benzhydrol and ethylacetoacetate can up to 88.33%.  Key word: magnetic; solid acid catalyst; zirconium oxide目录 1引言 1 1.1固体酸催化剂 2 1.1.1固体酸催化剂的组成 2 1.1.2固体酸催化剂的定义 2 1.1.3固体酸催化剂的优点 3 1.1.4固体酸催化剂