Selective isoprene hydrogenation over LnNi (Ln=Pr, Gd, Tm) intermetallic compounds

被引：10

作者：

Branco, JB ^{[1
]}

Gasche, TA ^{[1
]}

Gonçalves, AP ^{[1
]}

de Matos, AP ^{[1
]}

机构：

[1] ITN, Dept Quim, P-2686953 Sacavem, Portugal

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2001年 / 323卷

关键词：

intermetallic compounds; nickel; lanthanides; isoprene; selective hydrogenation;

D O I：

10.1016/S0925-8388(01)01190-2

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：

Isoprene hydrogenation on LnNi (Ln=Pr, Gd, Tm) rare earth intermetallic compounds has been studied. The effect of rare earth elements on nickel catalytic behaviour was investigated. The results at steady state indicate that the compounds are all more active than pure nickel. The main reaction products are 2M2B (2-methyl-2-butene) and 2M1B (2-methyl-1-butene) with a selectivity greater than 90%. The activity at t(o) (initial time reaction) and the selectivity at isoprene isoactivity clearly indicate the promotion of nickel's catalytic behaviour by the rare earth element. (C) 2001 Elsevier Science B.V. All rights reserved.

引用

页码：610 / 613

页数：4

共 17 条

[1]

ATKINSON GB, 1978, Patent No. 4071473

[2] HIGH-TEMPERATURE OXIDATION OF LNCU(2) INTERMETALLICS AND THEIR CATALYTIC BEHAVIOR IN 4-METHYL-2-PENTANOL DECOMPOSITION [J].