Liquid-phase hydrodechlorination of chlorobenzene over palladium-supported catalysts -: Influence of HCl formation and NaOH addition

被引：73

作者：

Aramendía, MA ^{[1
]}

Boráu, V ^{[1
]}

García, IM ^{[1
]}

Jiménez, C ^{[1
]}

Lafont, F ^{[1
]}

Marinas, A ^{[1
]}

Marinas, JM ^{[1
]}

Urbano, FJ ^{[1
]}

机构：

[1] Univ Cordoba, Dept Organ Chem, E-14014 Cordoba, Spain

来源：

JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL | 2002年 / 184卷 / 1-2期

关键词：

palladium catalysts; hydrodechlorination; chlorobenzene; deactivation; NaOH addition;

D O I：

10.1016/S1381-1169(01)00530-1

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：

The influence of HCl production and NaOH addition on catalytic activity in the liquid-phase hydrodechlorination of chlorobenzene over palladium-supported catalysts was studied. The rate of dehydrochlorination reaction falls with time owing to the poisoning effect of HCl gradually formed as by-product. A partial reaction order of -1 in HCl was found over the concentration range 0.05-0.3 M. The addition of NaOH as a proton acceptor was found to have a favourable effect only with the most disperse catalysts-by contrast, the alkali had an adverse effect on the activity of the least disperse solids. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：237 / 245

页数：9

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