化學(xué)工程與工藝四川理工學(xué)院畢業(yè)設(shè)計(jì)-全文預(yù)覽
【正文】 .................................................................................................... 8 在飼料方面的應(yīng)用 ..................................................................................... 8 1. 3 生產(chǎn)方法 ............................................................................................................ 8 尿囊素合成方法 ........................................................................................ 8 本研究采用的路線和方法 .......................................................................... 9 第 2 部分 實(shí)驗(yàn)材料與研究方法 ..................................................................................... 10 實(shí)驗(yàn)材料及儀器 ................................................................................................ 10 實(shí)驗(yàn)材料與試劑 ...................................................................................... 10 實(shí)驗(yàn)儀器及設(shè)備 ...................................................................................... 10 催化劑的制備 ....................................................................................................11 SO42/SiO2ZrO2的制備 ..............................................................................11 稀土鑭修飾的 SiO2ZrO2的制備 ................................................................11 催化劑表征 ........................................................................................................11 XRD .........................................................................................................11 TEM ........................................................................................................ 12 IR ............................................................................................................ 12 BET ......................................................................................................... 12 尿囊素合成反應(yīng) ................................................................................................. 12 催化實(shí)驗(yàn)過程 .......................................................................................... 12 產(chǎn)品收率的確定 ...................................................................................... 12 產(chǎn)品表征 ........................................................................................................... 13 純度測(cè)定 ................................................................................................. 13 元素分析 ................................................................................................. 13 IR ............................................................................................................ 13 第 3 部分 鋯基催化劑用于尿囊素合成的研究 ................................................................ 14 固體超強(qiáng)酸催化作用原理 ................................................................................ 14 催化劑篩選 ....................................................................................................... 14 Si： Zr 比 .................................................................................................. 14 焙燒溫度 .................................................................................................. 12 焙燒時(shí)間 .................................................................................................. 16 浸漬液濃度 ............................................................................................. 16 浸漬時(shí)間 ................................................................................................. 17 稀土 La 修飾 ........................................................................................... 18 工藝條件優(yōu)化 ................................................................................................... 18 催化劑用量 ............................................................................................. 19 反應(yīng)物配 比 ............................................................................................. 19 反應(yīng)溫度 ..........................................
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