负载型Cs2.5H0.5PW12O40醚化催化剂的制备与催化性能

王海彦; 陈文艺; 魏民

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负载型Cs_2.5H_0.5PW₁₂O₄₀醚化催化剂的制备与催化性能

催化、动力学与反应器 | 更新时间：2025-12-10

- 负载型Cs_2.5H_0.5PW₁₂O₄₀醚化催化剂的制备与催化性能
- PREPARATION AND CATALYTIC PERFORMANCE OF SUPPORTED Cs_2.5H_0.5PW₁₂O₄₀ ETHERIFICATION CATALYST
- 化工学报 2003年第10期页码：1374-1377
- 作者机构：
  
  辽宁石油化工大学石油化工系,辽宁,抚顺,113001
- 作者简介：
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- 网络首发：2003-10-25，
  
  纸质出版：2003-10-25
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王海彦, 陈文艺, 魏民. 负载型Cs_2.5H_0.5PW₁₂O₄₀醚化催化剂的制备与催化性能[J]. 化工学报, 2003,(10):1374-1377.

WANG Haiyan, CHEN Wenyi, WEI Min. PREPARATION AND CATALYTIC PERFORMANCE OF SUPPORTED Cs_2.5H_0.5PW₁₂O₄₀ ETHERIFICATION CATALYST[J]. CIESC Journal, 2003, (10): 1374-1377.
王海彦, 陈文艺, 魏民. 负载型Cs_2.5H_0.5PW₁₂O₄₀醚化催化剂的制备与催化性能[J]. 化工学报, 2003,(10):1374-1377. DOI：

WANG Haiyan, CHEN Wenyi, WEI Min. PREPARATION AND CATALYTIC PERFORMANCE OF SUPPORTED Cs_2.5H_0.5PW₁₂O₄₀ ETHERIFICATION CATALYST[J]. CIESC Journal, 2003, (10): 1374-1377. DOI：

摘要

制备了负载型磷钨酸铯(Cs2.5H0.5PW12O40)催化剂，考察了载体种类、载体性质、制备方法和制备条件对催化剂性能的影响

对制备的催化剂进行了表征，并考察了负载型Cs2.5H 0.5PW12O40作为醚化催化剂的催化活性.结果表明

大孔硅胶是Cs2.5H0.5PW12O40的适宜载体，硅胶的钠含量越低制备的Cs2.5H0.5PW12O40/SiO2催化剂的活性越高.采用一步法和二步法制备的Cs2.5H0.5PW12O40/SiO2催化剂均具有较强的酸性、催化活性以及良好的稳定性

可以替代液体酸和阳离子交换树脂

成为一种环境友好的固体酸催化剂.

Abstract

Some supported cesium salts of 12-tungstophoric acid (Cs2.5H0.5PW12O40) were prepared. The effects of support category

support properties

preparation methods and preparation conditions on the performance of supported Cs2.5H0.5PW12O40 catalysts were investigated. The catalysts prepared were characterized by XRD and Hammett indicator method. The results showed that silica gel is the preferred support

among Al2O3

silica gel

active carbon

MCM-41 and Si MCM-41. With decreasing sodium content of silica gel support

the activity of prepared catalyst increased. The catalysts prepared by both one-step method and two-step method showed strong acidity

high activity and excellent stability. XRD revealed that CsCO3 completely reacted with H3PW12O40 and formed Cs2.5 H0.5PW12O40 on the surface of silica gel support. Hammett constant（H0）of the catalyst was lower than -13.61. The Cs2.5H0.5PW12O40/SiO2 catalyst (loading of Cs2.5H0.5PW12O40 40%) showed the highest catalytic activity for the etherification of FCC light gasoline

and the etherification conversion of tertiary carbonic olefins was up to 56.54%

which could replace liquid acids and ion exchange resin and become a environmentally friendly solid acid catalyst.

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