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Book Review Ullmanns Encyklopdie der technischen Chemie (Ullmann's Encyclopedia of Industrial Chemistry). Edited by E. Bartholom E. Biekert H. Hellmann and H. Ley (deceased). Vol

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for the hydroxyalkylation of polyols. [DOS 2420774; Air
Products and Chemicals, Inc., Allentown (USA)]
[PR 275 IE-D]
N,N,N’,N’-Tetramethyl-2,2!-oxydiethylamine (bis[2-(N,Ndimethylamino)ethyl] ether is a very effective catalyst for
reactions of organic isocyanates. It is particularly suitable
in combination with organic tin compounds such as tin(I1)
octanoate for catalysis of the preparation of polyurethane
foams. [DOS 1795762; Union Carbide Corp., New York
[PR 276 IE-D]
(1) which are accessible by condensation of cyanohydrins
with monocyanoethylated amines. [DOS 2435 167; Ciba
Geigy AG, Basel (Switzerland)]
[PR 277 IE-D]
Polyols suitable for the preparation of flame-resistant polyurethanes are obtained by the addition of alkylene oxides to the
3-Amind-(aminomethyl)pyrrolidines (3) suitable as hardening
agents for epoxide resins, are formed on catalytic hydrogena(2) under pressure in
tion of 3-amino-4-cyano-3-pyrrolines
the presence of ammonia. The compounds (2) can be obtained
in good yield by Thorpe-Ziegler cyclization of the dinitriles
R L=an aliphatic group containing at least one alcoholic OH group; R z = H ,
alkyl, or an aliphatic group containing at least one alcoholic OH group
liquid (hydroxyalky1aminomethyl)isocyanurate (I) obtained
by condensation of isocyanic acid, formaldehyde, and amino
alcohols. [DOS 2 166652; Naphthachimie S. A., Paris
R’=(subst.) hydrocarbon group; R Z = H (subst.) hydrocarbon group; R3= H,
alkyl group (CI-C~), or R2R3= pentamethylene group
[PR 278 IE-D]
Ullmanns Encyklopiidie der technischen Chemie (Ullmann’s
Encyclopedia of Industrial Chemistry). Edited by E. Bartholomi, E. Biekert, H. Hellmann, and H . Ley (deceased).Vol. 4:
Verfahrensentwicklung und Planung von Anlagen. Dokumentation (Process Development and Plant Design. Documentation). Verlag Chemie, GmbH, Weinheim 1974, 4th
Edit., XVI, 728 pp., 600 figs., 90 tables, subscription price
DM 345.-, final price ca. DM 385.-.
This volume of the general part of the new Ullmann[*l
is the last of the four volumes dealing with the whole sector
of chemical process technology and reaction engineering. Two
further volumes will complete the general part, dealing with
physical and physicochemical methods of analysis and with
the techniques of measurement, protection of the environment,
and protection at work.
The subjects of the present volume are process development
and plant design, including the methods used for these fields
of work; in addition, it contains a section on documentation
and the combined index to volumes 1 4 in German and
English. In detail, it consists of the following contributions:
Process Development (69 pp.), Planning and Construction
of Chemical Plant (89 pp.), Network Technology(l3pp.), General Methods ofControl(96pp.), Plant Control (44 pp.), Digital
Computers (programing languages 22 pp., construction and
methods of operation 26 pp.), Process Computers (48 pp.),
Analog Computers (42 pp.), Mathematical Models (127 pp.),
Regression Analysis (13 pp.), Optimization (26 pp.), Documentation (16 pp.). The chemist, and particularly the industrial
[*] Cf. Angew. Chem. internat. Edit. 14, 268 (1975).
chemist engaged in research and production, will find special
interest in the contributions on process development and mathematical models, of which the latter treats the construction
of models in general and also methods of calculation for
specific general operations (e.g. rectification) and reactor types
(e. g. cooled tube reactors).The section on process development
is short compared with other sections, and the reviewer at
any rate would have liked this chapter to have been more
detailed. The section on documentation is also worth reading
by every chemist, particularly as chemical documentation,
i. e. the documentation of chemical compounds and reactions,
is most emphasized; the special problems of documenting
industrial processes are only lightly touched upon.
As in the case of the previous volumes, recognized specialists
have been commissioned as authors. Correlation of the individual contributions is naturally far from easy, and overlapping
cannot be avoided: in some cases it is indeed an advantage,
so as to provide a comprehensive picture of one theme, and
this is shown in the present volume by the series of problems
raised by cost estimation, as treated from the point of view
of the development chemist (in the section on process develop
ment) and of the development engineer (in the section on
plant design); in any case, both here and elsewhere, more
frequent cross-referencesin the text would have been welcome;
there is no such cross-reference in the second of the sections
just mentioned.
The overall verdict must be that the book represents an
excellent production by the press, editors, and authors, no
less than the previous volumes.
Ulfert Onken [NB 277 IE]
Angew. Chem. internat. Edit. / Vol. 14 ( 1 9 7 5 ) / N o . 8
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