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....................................................................... 5 固體催化劑的制備 .............................................................................................. 6 磁性基質(zhì)的合成方法 ............................................................................... 6 SO42/ZrO2/TiO2制備 ................................................................................ 6 催化反應(yīng)產(chǎn)物檢測(cè)方法 ...................................................................................... 7 薄層色譜法 ............................................................................................... 7 柱狀色譜法 ............................................................................................... 8 研究目的及意義 .................................................................................................. 9 2 實(shí)驗(yàn)部分 ....................................................................................................................... 10 實(shí)驗(yàn)藥品及儀器 ................................................................................................ 10 實(shí)驗(yàn)步驟 ............................................................................................................ 11 磁性基質(zhì)的合成實(shí)驗(yàn)過(guò)程 ..................................................................... 11 SO42/ZrO2/Fe3O4/TiO2磁性超強(qiáng)酸的合成 ........................................... 11 催化劑活性檢測(cè) ................................................................................................ 13 乙酸與乙醇的反應(yīng) ................................................................................. 13 二苯甲醇和乙酰乙酸乙酯的反應(yīng) ......................................................... 13 二苯甲醇與對(duì)甲苯磺酰胺的反應(yīng) ......................................................... 13 實(shí)驗(yàn)檢測(cè)操作 .................................................................................................... 14 薄層色譜檢測(cè)操作 ................................................................................. 14 柱層層析法檢測(cè)操作 ............................................................................. 14 3 結(jié)果與討論 ................................................................................................................... 16 磁性固體催化劑的制備 .................................................................................... 16 磁性基質(zhì)的制備 ..................................................................................... 16 SO42/ZrO2/Fe3O4/TiO2磁性超強(qiáng)酸的合成 ........................................... 16 催化反應(yīng) ............................................................................................................ 16 催化 乙酸和乙醇的反應(yīng) ......................................................................... 16 催化 二苯甲醇和乙酰乙酸乙酯的反應(yīng) ................................................. 17 催化 二苯甲醇與對(duì)甲苯磺酰胺的反應(yīng) ................................................. 18 結(jié)論 .................................................................................................................................. 20 謝辭 .................................................................................................................................. 21 參考文獻(xiàn) .......................................................................................................................... 22 唐 山 學(xué) 院 畢 業(yè) 設(shè) 計(jì) 1 1 引言 酸催化反應(yīng)是化學(xué)工業(yè)中重要的反應(yīng)過(guò)程之一,但是大多數(shù)的酸催化反應(yīng)是以液體酸為催化劑的 [12]。 .關(guān)鍵詞 : 磁性 固體酸 催化劑 氯氧化鋯 Study on the Preparation and Properties of SO42/ZrO2/Fe3O4/TiO2/Catalyst 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 overe such as corrosion, pollution, more vicereactions, 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, noncorrosion and nonenvironment polluting. Magic matrix was prepared by chemical coprecipitation, then with solid acid oxide posite. The catalyst had high acid strength and magic. The activity of the catalyst was detected by catalytic reaction of benzhydrol with ethyl acetate and other affinity reagents. And through the super mag 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 %. Key word: magic。通過(guò)催化二苯甲醇與乙酸乙酰乙酯 等親核試劑的反應(yīng),來(lái)檢測(cè)該催化劑的活性,并通過(guò)超強(qiáng)磁鐵來(lái)分離反應(yīng)產(chǎn)物與催化劑。 SO42/ZrO2型固體超強(qiáng)酸催化劑即為其中一種 , 這種超強(qiáng)酸催化劑具有高催化活性、水熱穩(wěn)定性、產(chǎn)物與催化劑易分離、不腐蝕設(shè)備、不污染環(huán)境和重復(fù)使用等優(yōu)點(diǎn)。 唐 山 學(xué) 院 畢 業(yè) 設(shè) 計(jì) 設(shè)計(jì)題目: SO42/ZrO2/Fe3O4/TiO2催化劑的制備及其性能研究 系 別: 環(huán)境與化學(xué)工程系 班 級(jí): 11 化學(xué)工程與工藝( 1)班 姓 名: 范洪濤 指 導(dǎo) 教 師: 李?;? 2020 年 6 月 6 日 SO42/ZrO2/Fe3O4/TiO2催化劑的制備及其性能研究 摘 要 固體超強(qiáng)酸催化劑是近年來(lái)研究和開發(fā)的一種新型固體酸催化劑,它具有酸性強(qiáng)度高,易分離等特點(diǎn), 具有非常重要的應(yīng)用價(jià)值 。 它可以克 服 工業(yè)上傳統(tǒng)催化劑 (如濃硫酸、濃磷酸等無(wú)機(jī)液體酸等金屬鹵化物 ) 的諸多弊端 : 易腐蝕、污染環(huán)境、難分離、副反應(yīng)多、產(chǎn)物選擇性低、催化活性不高等。 利用化學(xué)共沉淀法制備磁性基質(zhì),并與固體 酸氧化物復(fù)合 , 合成既具有磁性又具有較高酸強(qiáng)度的 磁性固體酸催化劑。結(jié)果表明該催化劑有很強(qiáng)的催化活性 , 二苯甲醇與乙酰乙酸乙酯反應(yīng)產(chǎn)率可到 %。 solid acid catalyst。以液體酸作為催化劑有很大的缺點(diǎn),比如它會(huì)使反應(yīng)容器受到腐蝕,反應(yīng)后的產(chǎn)物與催化劑難以分離,既污染了環(huán)境,又浪