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Hydrogenation of 2,5‐dimethyl‐2,4‐hexadiene and cis ‐2‐heptene on palladium black modified by lead, thallium and cadmium
Author(s) -
Červeny Libor,
Paseka Ivo,
Tobola Stanislav,
Ružička Vlastimil
Publication year - 1986
Publication title -
journal of chemical technology and biotechnology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.64
H-Index - 117
eISSN - 1097-4660
pISSN - 0268-2575
DOI - 10.1002/jctb.280360307
Subject(s) - palladium , heptene , thallium , cadmium , chemistry , lead (geology) , nuclear chemistry , polymer chemistry , inorganic chemistry , organic chemistry , catalysis , geology , geomorphology
The competitive hydrogenation of 2,5‐dimethyl‐2,4‐hexadiene and cis ‐2‐heptene catalysed by palladium black modified by lead, thallium and cadmium to various degrees of surface coverage, was investigated. An electrochemical method was used to determine the amounts of hydrogen dissolved and adsorbed on the catalyst. The effect of ad‐atoms of lead, thallium and cadmium on the kinetics of the competitive hydrogenation is discussed in terms of measured values of the reaction selectivity.