| 第 36 卷第 2 期 |  | Vol. 36 No. 2 | | 2006 年 4 月 | Apr 2006 |
|
所屬欄目：功能材料
納米固體超強酸ZrO_2/SO_4~(2-)的制備及其苯催化硝化 |
| 奚立民; 李曉敏; 于紅艷(臺州職業(yè)技術(shù)學(xué)院生物與化學(xué)工程系; 浙江臺州) |
| 摘 要：采用納米化學(xué)技術(shù)制備了新型的納米固體超強酸催化劑ZrO2/SO24-,并用XRD、TEM進(jìn)行了表征。結果表明:所研制的ZrO2/SO42-催化劑為晶態(tài)納米粒子,平均粒徑為41nm,分散性較好;考察了在不同工藝條件下苯硝化反應的收率影響因素,找出優(yōu)化反應條件為:催化劑活化溫度620℃,反應溫度75℃,n(硝酸)∶n(苯)=2∶1,m(苯)∶m(催化劑)=30∶1,反應時(shí)間6h,收率達85.0%。 |
| 關(guān)鍵詞：納米固體超強酸; 硝基苯; 催化硝化 |
| 中圖分類(lèi)號：O643.36 文獻標識碼：A 文章編號：1009-9212(2006)02-0053-03 |
|
| Preparation of Nanosolid Superacid ZrO_2/SO_4~(2-) and catalytic nitration of benzene |
| XI Li-min; LI Xiao-min; YU Hong-yan（Departement of Biological and Chemical Engineering; Taizhou Technical College; Taizhou 318000; China） |
| Abstract：The new nanosolid superacid ZrO2 /SO 42- was prepared using nanometer chemical technology,and was characterized by XRD and TEM. The results showed that ZrO2 /SO 2-4 was superfine nanocrystal solid,and its average size was 41 nm with good distribution. The influences of benzene nitration reaction on the yield were investigated by orthogonal design in various process conditions. The optimum reaction conditions were obtained as follow: the activated temperature of catalyst was 620 ℃,and the reaction was carrie... |
| Key words：nanosolid superacid; nitrobenzene; catalytic nitration |
|
基金項目：浙江省教育廳科研計劃項目(20040109)
|
收稿日期：2006-03-14
|
| 閱讀全文 |
|