Molecular Sieves

Molecular Sieves PDF Author: Rosemarie Szostak
Publisher: Springer Science & Business Media
ISBN: 9401095299
Category : Science
Languages : en
Pages : 473

Get Book Here

Book Description
From areport by a Lieutenant Colonel W.A. Ross (Chern. News, Nov.15, 1878, p. 236). Progress did not accelerate during the next 50 years. McBain, in his clas sic 1932 book, The Sorption oi Gases by So lids, devoted a chapter to sorp tion by chabasite, other zeolites, and permeable crystals. McBain remarked that "great interest attaches to the finding of Weigel and Steinhoff [0. Weigel and E. Steinhoff, Z. Kris!., 61, 125 (1925{raquo}) that chabasite rapidly sorbs the vapors of water, methyl and ethyl alcohol and formie acid, whereas acetone, ether and benzene are largely excluded. The significance of their results was pointed out by McBain [J.W. McBain, Colloid. Syrnp. Mon., 20, 1 (1926{raquo}) and recognized by alliater writers. It is evident that the partially dehydrated chabasite forms a nearly perfect molecular sieve or a semipermeable membrane of extremely regular structure ... ". While the significance of the above observation may have been recog nized, it had little impact. Thus, an eminent pioneer in the synthesis and characterization af zeolites, Professor R.M. Barrer, spent nearly two dec ades (following his Ph. D. studies in the 1930s) developing a firm foundation for the rapid growth in scientific understanding and industrial applications of zeolites which has taken place during the last 30 years.

Molecular Sieves

Molecular Sieves PDF Author: Rosemarie Szostak
Publisher: Springer Science & Business Media
ISBN: 9401095299
Category : Science
Languages : en
Pages : 473

Get Book Here

Book Description
From areport by a Lieutenant Colonel W.A. Ross (Chern. News, Nov.15, 1878, p. 236). Progress did not accelerate during the next 50 years. McBain, in his clas sic 1932 book, The Sorption oi Gases by So lids, devoted a chapter to sorp tion by chabasite, other zeolites, and permeable crystals. McBain remarked that "great interest attaches to the finding of Weigel and Steinhoff [0. Weigel and E. Steinhoff, Z. Kris!., 61, 125 (1925{raquo}) that chabasite rapidly sorbs the vapors of water, methyl and ethyl alcohol and formie acid, whereas acetone, ether and benzene are largely excluded. The significance of their results was pointed out by McBain [J.W. McBain, Colloid. Syrnp. Mon., 20, 1 (1926{raquo}) and recognized by alliater writers. It is evident that the partially dehydrated chabasite forms a nearly perfect molecular sieve or a semipermeable membrane of extremely regular structure ... ". While the significance of the above observation may have been recog nized, it had little impact. Thus, an eminent pioneer in the synthesis and characterization af zeolites, Professor R.M. Barrer, spent nearly two dec ades (following his Ph. D. studies in the 1930s) developing a firm foundation for the rapid growth in scientific understanding and industrial applications of zeolites which has taken place during the last 30 years.

Zeolite Molecular Sieves

Zeolite Molecular Sieves PDF Author: Donald W. Breck
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 792

Get Book Here

Book Description


Handbook Of Molecular Sieves

Handbook Of Molecular Sieves PDF Author: Rosemarie Szostak
Publisher: Springer Science & Business Media
ISBN: 9780442318994
Category : Science
Languages : en
Pages : 620

Get Book Here

Book Description
This handbook is the only up-to-date, A to Z compilation of commercial and research zeolites. The volume presents complete patent-researched reference information on structural data, synthesis parameters, and characteristic properties. For each known zeolite there is an entry on all organics which crystallize a given structure, physical data, and applications. Data is presented in tabular or graphical form with minimal text, and a cross-referenced literature review is provided.

Mesoporous Molecular Sieves 1998

Mesoporous Molecular Sieves 1998 PDF Author: L. Bonneviot
Publisher: Elsevier
ISBN: 0080536247
Category : Technology & Engineering
Languages : en
Pages : 633

Get Book Here

Book Description
The original properties of mesoporous molecular sieves are so unique that the design of most existing catalysts could be reconsidered. It might indeed be of interest to introduce MMS either as a support or as the active phase, merely on the basis of their high surface areas, narrow pore size distribution and flexibility in composition. The recent literature provides examples of MMS based catalysts of many types such as acid-base solids, supported metals and supported oxides, mixed oxides, anchored complexes and clusters, grafted organic functional groups and others. Examples of all these developments are documented in the present proceedings including some spectacular new proposals. The new metallic (Pt) mesophases are specially worth mentioning because they represent a new approach to producing non-supported highly dispersed metals.In these proceedings the reader will find feature articles and regular papers from many worldwide groups, covering all aspects of synthesis, physical characterization and catalytic reactivity of MMS and their chemically modified forms. It is actually remarkable that this recent development brought together an even broader spectrum of scientists from traditionally unrelated fields such as those of liquid crystals, surfactants, sol-gels, amorphous oxides and mixed oxides, solid state, adsorbents and heterogeneous catalysts. Obviously, this is a fast-growing research area which triggers the imagination and creativity at the cross-road between material design, molecular surface tailoring and catalytic applications.

An Introduction to Zeolite Molecular Sieves

An Introduction to Zeolite Molecular Sieves PDF Author: Alan Dyer
Publisher: John Wiley & Sons
ISBN:
Category : Science
Languages : en
Pages : 178

Get Book Here

Book Description
This book provides a comprehensive introduction to zeolite science. Synthetic zeolites are important major catalysts in the oil industry, they are also important in the separation of gases from the air, in the treatment of nuclear wastes and as a component in detergents. In addition they are natural minerals with a unique role in mineralogy and occurences throughout the world. The book assesses the importance of zeolites in all these applications.

Introduction to Zeolite Molecular Sieves

Introduction to Zeolite Molecular Sieves PDF Author: Jiri Cejka
Publisher: Elsevier
ISBN: 008055041X
Category : Technology & Engineering
Languages : en
Pages : 1095

Get Book Here

Book Description
Introduction to Zeolite Molecular Sieves, 3rd Edition presents a collection of the most important results and ideas in the field of molecular sieve chemistry and technology, the most important experimental techniques related to the research activities in molecular sieves, and identifies new areas of molecular sieve chemistry. Chapters start at a reasonably simple entry level, but also covers the present state-of-the-art in the field. Topics covered include structure, synthesis, characterization, ion exchange, adsorption, diffusion, separations, and natural zeolites.* 6 years since the last edtion this book brings together the rapid development within the field of molecular sieve chemistry and applications * Accessible to newcomers to the field, also containing valuable information for experienced researchers * 27 chapters written by renowned scientists in their field, including updates on some 2nd edition chapters

Molecular Sieves

Molecular Sieves PDF Author: Jiří Čejka
Publisher: Elsevier
ISBN: 044452083X
Category : Science
Languages : en
Pages : 1223

Get Book Here

Book Description


Gel Chromatography

Gel Chromatography PDF Author: Helmut Determann
Publisher: Springer
ISBN: 3662287064
Category : Science
Languages : en
Pages : 205

Get Book Here

Book Description
The efforts spent on many a scientific book cannot be justified, no matter how many words are said about it. The opposite is true for this book and a few brief remarks upon its publication. Within a short period of time, short even by all present standards, gel chromatography has gone through a development and experienced an acceptance that is unknown to any other method. From experience, the new and unique separation technique is today known and liked in all laboratories that are concerned with substances of high molecular weight; in others, the technique is known from hearsay, the least. Soon it became evident that a comprehensive coverage of the conceptual development, the theoretical principles, and the experimental technique of the new method would be desirable. This coverage is now offered by the book of an expert. Its author has personally participated in the development from its beginning and helped to promote it. He has made possible the gel chromatography, also of proteins, on thin layer plates; for lipophilic substances he has contributed considerably to the transition from water to organic solvent systems and developed theoretical concepts for a better understanding of the effects that are responsible for the separation. The book, so it appears to me, is pointing in new directions. The reader does not only expect a clear presentation of facts but also that of instructions for practical applications. Both these expectations have been met by the expert.

Guidelines for Mastering the Properties of Molecular Sieves

Guidelines for Mastering the Properties of Molecular Sieves PDF Author: Denise Barthomeuf
Publisher: Springer Science & Business Media
ISBN: 146845787X
Category : Science
Languages : en
Pages : 424

Get Book Here

Book Description
Low dimensionality is a multifarious concept which applies to very diversified materials. Thus, examples of low-dimensional systems are structures with one or several layers, single lines or patterns of lines, and small clusters isolated or dispersed in solid systems. Such low dimensional features can be produced in a wide variety of materials systems with a broad spectrum of scientific and practical interests. These features, in turn, induce specific properties and, particularly, specific transport properties. In the case of zeolites, low dimensionality appears in the network of small-diameter pores of molecular size, extending in one, two or three di mensions, that these solids exhibit as a characteristic feature and which explains the term of "molecular sieves" currently used to name these ma terials. Indeed, a large number of industrial processes for separation of gases and liquids, and for catalysis are based upon the use of this low dimensional feature in zeolites. For instance, zeolites constitute the first class of catalysts employed allover the world. Because of the peculiarity and flexibility of their structure (and composition), zeolites can be adapted to suit many specific and diversified applications. For this reason, zeolites are presently the object of a large and fast-growing interest among chemists and chemical engineers.

Molecular Sieves: From Basic Research to Industrial Applications

Molecular Sieves: From Basic Research to Industrial Applications PDF Author: Jiri Cejka
Publisher: Elsevier
ISBN: 0080473512
Category : Science
Languages : en
Pages : 2190

Get Book Here

Book Description
Due to their unique porous properties, zeolites (also referred to as molecular sieves) are used in a variety of applications - major uses are in petrochemical cracking, ion-exchange (water softening and purification), and in the separation and removal of gases and solvents. Molecular Sieves: From Basic Research to Industrial Applications, Volume 158 A,B presents over 265 worldwide contributions on the latest developments in zeolitic research. Readers will find this book, which is divided into five sections: Synthesis, Characterization, Adsorption, Catalysis, and Novel applications, ideal for staying up to date on current research on porous materials.* Comprehensive overview of current research on porous materials* Contains experimental as well as theoretical input, reflecting the increasing overlap between theory and experiment* Contributions from the world's leading authorities