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Book Review Catalytic Processes and Proven Catalysts. by C. L. Thomas

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The spectra of simple molecular ions in the gaseous phase
are surveyed by G. Herzberg. Spectra of this kind permit
an insight into the electronic structure, and thus into the
bonding, of the corresponding neutral molecules. Experimental methods for production of molecular ions are
considered first, and their emission, absorption, photoelectron, and fluorescence spectra are then discussed.
Molecular ions have also been detected in planetary
atmospheres and in interstellar gas. [Spectra and Structure
of Molecular Ions. Quart. Rev. Chem. SOC.25, 201-222
(1971); 52 references, 23 figures]
[Rd 407 IE -K]
NMR studies of molecular relaxation processes in solid
polymers are described by D. W. McCali. A discussion of
theoretical principles is followed by a wealth of examples
of applications. Thus the method can be used to follow the
movements of several different side chains, special movements of the main chain in crystalline polymers, and processes occurring near the glass transition temperature.
[Nuclear Magnetic Resonance Studies of Molecular
Relaxation Mechanisms in Polymers. Accounts Chem.
Res. 4,223-232 (1971); 46 references, 17 figures]
[Rd 404 IE -El
Catalytic Processes and Proven Catalysts. By C. L. Thornns.
Academic Press, New York-London 1970. xiii, 284 pp.,
19 tab., bound, $12.50.
important, it aims to provide the catalyst user with a wealth
of important practical information, all of which was specifically obtained on the range of catalysts distributed by ICI.
Thanks to his long years of service as a scientific advisor
to the Sun Oil Company, the author has a wealth of experience in the operation of commercial catalytic processes.
He has now done us the service of setting this experience
down in book form, for the first time making publicly
available proprietary information which in many cases
was previously jealously guarded.
Many well-known scientists, including S. P. S. Andrew,
G. W Bridger, J . S. Campbell, G . C. Chinchen, P. Crauen,
D. A. Dowden, D. R. Goodman,J . J . PhiElipson,C.B. Snowdon,
W Spendley, and P. W Young, have collaborated in the
preparation of this book. The questions of catalyst activity,
selectivity, and lifetime, of decisive importance in all
processes, are dealt with thoroughly by all the authors, and
run as an underlying theme throughout the book. The
specific reactions described are the desulfurization of
hydrocarbons, hydrocarbon-reforming, removal of carbon
monoxide, and ammonia synthesis. In each case the various
methods used, the selection of catalyst, the reaction mechanism, and the kinetics are described; mention is also made
of problems concerned with the need to use certain feedstock blends and to control catalyst poisons. One section
is devoted to the testing and another to the practical
handling of catalysts. In addition, computer programs for
converter calculations are included. An extensive tabular
appendix contains data on ICI catalysts, substance properties, and gas-phase equilibrium constants, together with
examples of calculations.
The book includes descriptions of a large number of catalytic reactions, arranged by reaction type. They include
oxidation, hydrogenation, dehydrogenation, dehydration,
alkylation, isomerization, cracking and reforming, polymerization, ammonia and methanol synthesis, synthesis
gas and hydrogen production, and gas purification processes. Proven catalysts are described for each reaction, and
their advantages and disadvantages are discussed ; commercial catalysts are also described, but only those from
American manufacturers. In addition, the book contains
data on the most favorable operating conditions, particularly temperature and concentrations, the space-velocity,
and the catalyst lifetime. There is also information on the
various types of reactors, the handling of catalysts, catalyst
poisons, and the regeneration (especially by eliminating
carbon deposits) of inactivated catalysts. In conclusion,
there is a section on carriers.
The book is not intended as a textbook, but it can be used
as a guide or collection of formulations, which should be
particularly pleasing to practising chemists and chemical
engineers, who will find it a valuable aid in the solution
of catalyst problems.
E.-G. Schlosser [NB 989 lE]
Catalyst Handbook. Wolfe Scientific Books, London 1970.
1st ed., 231 pp., 81 figs., 16 tab., f, 3.15.
This book, specifically concerned with unit processes encountered in the manufacture of ammonia and hydrogen,
deserves attention for two reasons. In the first place, it contains a number of full yet concise explanations of the fundamentals of heterogeneous catalysis, which justifies its description as a "handbook". But secondly, and what is more
Angew. Chem. internat. Edit. J Vol. 10 (1971) J N O . 10
This book is an important reference work for the plant
designer and chemicalengineer and is highly recommended.
E.-G. Schlosser [NB 988 IE]
Technique of Organic Chemistry. Edited by A . Weissberger.
Vol. K/Part 2 : Microwave Molecular Spectra. By
W Gordy and R . L. Cook. Interscience, New York 1970,
2nd Edit., 747 pp., bound, ca. DM 139.-['1.
In recent years, microwave spectroscopy has progressed
in measuring technique, theory, and evaluation technique
to such a degree that this method is applicable to a series
of problems that face the chemist. It provides the most
precise geometrical data on molecules, allows the study
of conformation equilibria, rearrangements, and shortlived intermediates, is suitable for qualitative and quantitative analyses, and provides information about the
electronic structure. Microwave spectroscopy was formerly
[I] Cf. Angew. Chem. internat. Edit. 6 , 1092 (1967).
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