初次采用吡啶红外光谱探针法测定了离子液体的酸性. 该方法能鉴别离子液体的Brnsted/Lewis酸类型,并可以粗略指示离子液体的Lewis酸强度. 将[bmim]Cl/AlCl3类离子液体用于催化异丁烷与丁烯的烷基化反应,考察了酸强度、反应温度、压力和时间对产物分布的影响,并在最优操作条件下与传统的H2SO4催化剂进行了比较. 结果表明,离子液体对烷基化反应的催化活性和选择性与H2SO4可比,而且它更容易与产物分离,不经任何处理可循环利用10次.
参考文献
[1] | Zhao D B;Wu M;Kou Y;Min E Z .[J].Catalysis Today,2002,74(1-2):157. |
[2] | Chauvin Y;Di Marco-Van Tiggelen F;Olivier H.[J].Journal of the Chemical Society Dalton Transactions,1993(07):1009. |
[3] | Fannin A A Jr;King L A;Levisky J A;Wilkes J S .[J].Journal of Physical Chemistry,1984,88(12):2609. |
[4] | Hsiu S-I;Huang J-F;Sun I-W;Yuan C-H,Shiea J .[J].Electrochimica Acta,2002(47):4367. |
[5] | Gray J L;Maciel G E .[J].Journal of the American Chemical Society,1981,103(24):7147. |
[6] | Zawodzinski T A;Osteryoung R A .[J].Inorganic Chemistry,1989,28(09):1710. |
[7] | Angell C A;Bennett P D .[J].Journal of the American Chemical Society,1982,104(23):6304. |
[8] | Carlin R T;Wilkes J S .[J].Journal of Molecular Catalysis(China),1990,63(02):125. |
[9] | Woodcock C;Shriver D F .[J].Inorganic Chemistry,1986,25(13):2137. |
[10] | Sun W D;Zhao Zh B;Guo CH;Ye X K,Wu Y .[J].Industrial and Engineering Chemistry Research,2000,39(10):3717. |
[11] | Yang Y L;Kou Y.[J].Chemical Communications,2004(02):226. |
[12] | Parry E P .[J].Journal of Catalysis,1963,2(05):371. |
[13] | Albright L F .[J].Oil & Gas Journal,1990(88):79. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分:
-
10%
-
20%
-
30%
-
40%
-
50%