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Book Review Active Carbon. Manufacture Properties and Applications. By M. Smiek and S

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BOOK REVIEWS
Active Carbon. Manufacture, Properties and Applications.
By M . Srniiek and S. Cerny. Elsevier Publishing
Company, Amsterdam-London-New York 1970. 1st
Edit., vii, 479 pp., ca. DM 97.--.
Active carbon has long been known in the form of carbo
animalis, blood charcoal, etc., but it was only at the
beginning of this century that it was first manufactured
on a commercial scale. It soon found a wide field of applications as an adsorbent and as a catalyst or catalyst support. Depending on the way in which it is produced, active
carbon may have narrow or wide pores; the first type is
better suited to the adsorption of gases or vapors, and the
second to the adsorption of dissolved substances.
The present book is a revised and improved translation of
a volume originally published in 1964 in Czech, in which
other authors were involved in the writing of certain
chapters. It deals with the manufacture and many of the
applications of active carbon, and the theory of adsorption
and the various equations for describing adsorption
isotherms, together with methods for measuring the pore
volume and the pore radius distribution, are all given in
detail. However, the reader will seek in vain for de Boer’s
recently developed t-method for the determination of pore
size distribution. Although eight pages are devoted to the
catalytic oxidation of hydrogen sulfide on active carbon,
there is no mention of the process for the separation of
sulfur dioxide from flue gases by means of active
carbon.
The authors have taken some trouble to give as comprehensive a survey as possible of the current knowledge
on active carbon. In a book of this size, however, details can
only be handled very briefly. Because of its limited subject
matter, the book will only be of use to a relatively small
circle of specialists.
H . P . Boehrn [NB 965 IE]
Chemie und Technologie der Silicone (Chemistry and Technology of Silicones). By W. NolI, Verlag Chemie, Weinheim 1968. 2nd Edit., xvi, 612 pp., 124 illustrations,
115 Tables, bound, DM 98.-.
The first edition appeared in 1960[’] and the present
second edition in 1968. It is characteristic of the rapid
overall growth in the chemistry and technology of macromolecular substances that after eight years this book,
dealing with a specific field, required a fundamental
revision, amplification, and extension; we should be
thankful that this has in fact been done. This is particularly
true of the chemistry of the low-molecular organosilicon
compounds, the technology of silicone rubbers, and the
copolymers obtained by various methods. The diligence
and thoroughness with which the revision has been carried
out can be seen by a comparison of the literature
references, which are given at the end of each chapter and
(in the new edition) listed on the contents page. Unfortunately, there is no author index to enable the work of a
given author to be located.
The author is justified in pointing out in the foreword
that the extension of Chapter 4 (present length ca. 50
pages, as opposed to 20 previously) on the chemistry of
low-molecular organosilicon compounds, which have
[I]
Cf. Angew. Chem. 74,914 (1962).
360
indeed been the starting-point for further developments,
was particularly necessary. Here and in Chapter 7 (Copolymers) there are very informative tables.
The value of this book, which concentrates on essentials,
can be seen by comparing Chapter 7 (Other Organosilicon
Polymers, 42 pp.) with “Organosilicon Heteropolymers
and Heterocompounds” (Plenum Press, New York, 1970,
568 pp.), the English translation of the monograph by
Borisov, Voronkov and Lukevits, in which no summarizing
survey is given.
For the many readers who are interested in polymeric
organosiloxanes, Chapter 6 is still very important. This
chapter gives a survey of the fundamentals of chemical and
steric structure, the types of bonding, the effect of
substituents, the S i - C bonding (comparison with C-C
bonding), and the intermolecular forces. This survey leads
to a better understanding of the overall properties and
thus of the technical and operational behavior.
The very high standard of presentation of the book could
be improved still further if certain important concepts
(e.g . configuration, tacticity, conformation) were used
consistently.
The book is strongly recommended to all those interested
in the chemistry and technology of macromolecular
substances.
Werner Kern [NB 960 IEJ
Fortschritte der Verfahrenstechnik (Advances in Process
Technology). Edited by W . Springer. Verlag Chemie,
Weinheim 1969. 1st. Edit., xxvii, 1243 pp., 93 illustrations, 31 Tables, linen binding, DM 260.--.
The publication explosion in the field of chemical engineering continues, and it is becoming increasingly difficult to
obtain an overall picture of progress in this branch of
engineering. The annual publication of “Fortschritte der
Verfahrenstechnik” is an attempt to meet this need, and
now we have the eighth volume containing the literature
for 19661967.
The very fact of the delay in publication (the first annual
volume covered the period 1952-1953 and appeared as
1954) shows that the subject specialist cannot expect this
type of compilation to act as a report on recent progress
in his own particular field (computer-based SDI systems
are far more suitable for this purpose) but rather to give
him a survey of advances in subjects related to but different
from his own. The individual sections of the latest volume
fulfil this task with varying degrees of success. For example,
the newly instituted Section 8, “Methods of Optimization”,
meets the above requirements and does it extremely well.
On the other hand Section 7, “Technical Reactions and
Reactors”, still retains an arrangement which not only
makes it difficult to get a comprehensive view of the
topic, but also does not make use of the advances made in
the systematics of this topic in the meantime ( e . g . reaction
analysis as opposed to reactor design).
If individual sections are omitted from time to time ( e . g .
in the present volume “Physics of High and Ultrahigh
Pressures” and “Distillation and Rectification”) in order
to arrive at long-term critical evaluations rather than
just a simple arranging and listing, then this is all to the
Angew. Chem. internat. Edit. J Vol. 10 (1971)
1 No. 5
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