Rare Earth Pyrophosphates: Effective Catalysts for the Production of Acrolein from Vapor-phase Dehydration of Glycerol

被引：69

作者：

Liu, Qingbo ^{[1
,2
]}

Zhang, Zhen ^{[1
,2
]}

Du, Ying ^{[1
,2
]}

Li, Jing ^{[1
,2
]}

Yang, Xiangguang ^{[1
,2
]}

机构：

[1] Chinese Acad Sci, Changchun Inst Appl Chem, Lab Green Chem & Proc, Changchun 130022, Peoples R China

[2] Chinese Acad Sci, Grad Sch, Beijing, Peoples R China

来源：

CATALYSIS LETTERS | 2009年 / 127卷 / 3-4期

关键词：

Glycerol; Acrolein; Alcohol dehydration; Rare earth pyrophosphates; Solid acid; N-BUTANE; OXIDATIVE DEHYDROGENATION; SUSTAINABLE PRODUCTION;

D O I：

10.1007/s10562-008-9723-y

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Vapor-phase dehydration of glycerol to produce acrolein was investigated at 320 A degrees C over rare earth (including La, Ce, Nd, Sm, Eu, Gd, Tb, Ho, Er, Tm, Yb, Lu) pyrophosphates, which were prepared by precipitation method. The most promising catalysts were characterized by means of XRD, FT-IR, TG-DTA, BET and NH3-TPD measurements. The excellent catalytic performance of rare earth pyrophosphate depends on the appropriate surface acidity which can be obtained by the control of pH value in the precipitation and the calcination temperature, e.g. Nd-4(P2O7)(3) precipitated at pH = 6 and calcined at 500 A degrees C in the catalyst preparation.

引用

页码：419 / 428

页数：10

共 24 条

[1]

Adkins H., 1941, ORG SYNTH COLL, V1, P15

[2] Surface alteration of (VO)2P2O7 by α-Sb2O4 as a route to control the n-butane selective oxidation [J].