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Apparatus and method to measure a molecular diffusion coefficient in a porous powder
FOCUS effluent can completely satisfy the Comprehensive Discharge Standard. Original Source: Xiandai Huagong/Modern Chemical Industry, Apr 2017, 37 (4), 152-155 (Website: http://www.xdhg.com.cn) © China National Chemical Information Center 2017.
PATENTS Nanoparticles, nanosponges, methods of synthesis, and methods of use This patent describes novel metallic nanoparticles coated with a thin protective carbon shell, and three-dimensional nanometallic sponges; methods of preparation of the nanoparticles; and uses for these novel materials, including wood preservation, strengthening of polymer and fiber/polymer building materials, and catalysis. US 9,574,136, Board of Supervisors of Louisiana State University And Agricultural and Mechanical College, Baton Rouge, LA USA, 21 FEB 2017.
Selective olefin metathesis with cyclometalated ruthenium complexes This invention relates generally to C–H activated ruthenium olefin metathesis catalyst compounds, which are stereogenic at the ruthenium center, to their preparation, and the use of such catalysts in the metathesis of olefins and olefin compounds. In particular, the invention relates to the use of C–H activated ruthenium olefin metathesis catalyst compounds in Z-selective olefin metathesis reactions, enantio-selective olefin metathesis reactions, and enantio-Zselective olefin metathesis reactions. The invention has utility in the fields of catalysis, organic synthesis, polymer chemistry, and industrial and fine chemicals chemistry. US 9,676,676, California Institute of Technology, Pasadena, CA USA, 13 JUN 2017.
Apparatus and method to measure a molecular diffusion coefficient in a porous powder An apparatus and method for measuring molecular diffusivity in porous powders or minerals, e.g., the microporous synthetic minerals used for gas separation and chemical catalysis, is described that allows a varying pressure in the gas around the powder during the measurement. This obviates the need for
July 2017
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C ATA LY S T S
the pressure to be constant and the attendant complicated component parts. A mass balance model equation of the sample cell with the diffusivity as an adjustable parameter is used to deduce the sample cell pressure change versus time (uptake curve) until the equilibration of gas diffusion into the powder. A numerical analysis method is used to solve the mathematical model to compute a simulated uptake curve. Curve fitting of the simulated and measured uptake curves is used to optimize the diffusivity parameter, which gives the measured diffusivity. The apparatus and method are simple, easy to use, and automation is also simple. US Patent Appl. US2017160184 (A1), Tsinghua University, Beijing, CN, 8 JUN 2017.
BOOKSHELF Encapsulated Catalysts This book describes the many different types of encapsulated catalysts and their applications in organic, inorganic, hybrid, and biological systems. This resource focuses on topics of current interest including the encapsulation effects on reactivity and selectivity, the difficulty of their separation from reaction mixture, and/or their sensitivity to reaction conditions, and the limit of their industrial applications. The book also reviews immobilization of homogenous catalysts on inorganic or organic supports and how it enables the separation of homogenous catalysts, as well as the protection or reuse of catalysts. The text also discusses the most promising advances in catalysis and recent developments in the area, including enzyme mimic catalysts and new nano-materials for catalyst encapsulation. It provides interdisciplinary coverage of organic, inorganic, and biological materials for encapsulation of catalysts. It also describes various types of reactions, which can be catalyzed in presence of encapsulated catalysts. Samahe Sadjadi (ed), 1st edn, July 2017, Academic Press, Cambridge, MA USA, ISBN13: 978-0128038369, 554 pp.
Nanotechnology Commercialization: Manufacturing Processes and Products This text presents a detailed look at the state of the art in nanotechnology and explores key issues that must still be addressed in order to successfully commercialize that vital technology. Written by a team of distinguished experts in the field, it covers a range of
applications notably: military, space, and commercial transport applications, as well as applications for missiles, aircraft, aerospace, and commercial transport systems. The drive to advance the frontiers of nanotechnology has become a major global initiative with profound economic, military, and environmental implications. Nanotechnology has tremendous commercial and economic implications with a projected $ 1.2 trilliondollar global market. This book describes current research in the field and details its commercial potential—from work bench to market. It examines the state of the art in nanotechnology and explores key issues surrounding its commercialization. It takes a real-world approach, with chapters written from a practical viewpoint, detailing the latest research and considering its potential commercial and defense applications. It presents the current research and proposed applications of nanotechnology in such a way as to stimulate further research and development of new applications. The major challenge currently faced by researchers in nanotechnology is successfully transitioning laboratory research into viable commercial products for the 21st century. T. Mensah, B. Wang, G. Bothun, J. Winter, and V. Davis, 1st edn, October 2017, Wiley AIChE, New York, NY USA, ISBN-13: 9781119371724, 448 pp.
Essentials of Chemical Reaction Engineering H. Scott Fogler builds on the strengths of the previous edition to enable students to learn chemical reaction engineering through logic rather than memorization. This is the complete, modern introduction to chemical reaction engineering for today's readers: students who demand instantaneous access to information, have no time to waste, and want to enjoy learning as they build their critical thinking and creative problem solving skills. Fogler provides extensive resources to help students gain a deep intuitive understanding of how reactors behave in diverse situations, providing more than 60 realistic interactive simulations on the associated website which offers tools, videos, and games designed to support students with many different learning styles. By integrating algorithms, modern computational techniques, the companion website, interactive computer modules, and project-based learning with open-ended problems, Fogler has created an unsurpassed learning platform for today's chemical engineering student. H. S. Fogler, 2nd edn, October 2017, Pearson Education, Prentice Hall, Upper Saddle River, NJ USA, ISBN-13: 978-0134663890, 800 pp.
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PATENTS Nanoparticles, nanosponges, methods of synthesis, and methods of use This patent describes novel metallic nanoparticles coated with a thin protective carbon shell, and three-dimensional nanometallic sponges; methods of preparation of the nanoparticles; and uses for these novel materials, including wood preservation, strengthening of polymer and fiber/polymer building materials, and catalysis. US 9,574,136, Board of Supervisors of Louisiana State University And Agricultural and Mechanical College, Baton Rouge, LA USA, 21 FEB 2017.
Selective olefin metathesis with cyclometalated ruthenium complexes This invention relates generally to C–H activated ruthenium olefin metathesis catalyst compounds, which are stereogenic at the ruthenium center, to their preparation, and the use of such catalysts in the metathesis of olefins and olefin compounds. In particular, the invention relates to the use of C–H activated ruthenium olefin metathesis catalyst compounds in Z-selective olefin metathesis reactions, enantio-selective olefin metathesis reactions, and enantio-Zselective olefin metathesis reactions. The invention has utility in the fields of catalysis, organic synthesis, polymer chemistry, and industrial and fine chemicals chemistry. US 9,676,676, California Institute of Technology, Pasadena, CA USA, 13 JUN 2017.
Apparatus and method to measure a molecular diffusion coefficient in a porous powder An apparatus and method for measuring molecular diffusivity in porous powders or minerals, e.g., the microporous synthetic minerals used for gas separation and chemical catalysis, is described that allows a varying pressure in the gas around the powder during the measurement. This obviates the need for
July 2017
ON
C ATA LY S T S
the pressure to be constant and the attendant complicated component parts. A mass balance model equation of the sample cell with the diffusivity as an adjustable parameter is used to deduce the sample cell pressure change versus time (uptake curve) until the equilibration of gas diffusion into the powder. A numerical analysis method is used to solve the mathematical model to compute a simulated uptake curve. Curve fitting of the simulated and measured uptake curves is used to optimize the diffusivity parameter, which gives the measured diffusivity. The apparatus and method are simple, easy to use, and automation is also simple. US Patent Appl. US2017160184 (A1), Tsinghua University, Beijing, CN, 8 JUN 2017.
BOOKSHELF Encapsulated Catalysts This book describes the many different types of encapsulated catalysts and their applications in organic, inorganic, hybrid, and biological systems. This resource focuses on topics of current interest including the encapsulation effects on reactivity and selectivity, the difficulty of their separation from reaction mixture, and/or their sensitivity to reaction conditions, and the limit of their industrial applications. The book also reviews immobilization of homogenous catalysts on inorganic or organic supports and how it enables the separation of homogenous catalysts, as well as the protection or reuse of catalysts. The text also discusses the most promising advances in catalysis and recent developments in the area, including enzyme mimic catalysts and new nano-materials for catalyst encapsulation. It provides interdisciplinary coverage of organic, inorganic, and biological materials for encapsulation of catalysts. It also describes various types of reactions, which can be catalyzed in presence of encapsulated catalysts. Samahe Sadjadi (ed), 1st edn, July 2017, Academic Press, Cambridge, MA USA, ISBN13: 978-0128038369, 554 pp.
Nanotechnology Commercialization: Manufacturing Processes and Products This text presents a detailed look at the state of the art in nanotechnology and explores key issues that must still be addressed in order to successfully commercialize that vital technology. Written by a team of distinguished experts in the field, it covers a range of
applications notably: military, space, and commercial transport applications, as well as applications for missiles, aircraft, aerospace, and commercial transport systems. The drive to advance the frontiers of nanotechnology has become a major global initiative with profound economic, military, and environmental implications. Nanotechnology has tremendous commercial and economic implications with a projected $ 1.2 trilliondollar global market. This book describes current research in the field and details its commercial potential—from work bench to market. It examines the state of the art in nanotechnology and explores key issues surrounding its commercialization. It takes a real-world approach, with chapters written from a practical viewpoint, detailing the latest research and considering its potential commercial and defense applications. It presents the current research and proposed applications of nanotechnology in such a way as to stimulate further research and development of new applications. The major challenge currently faced by researchers in nanotechnology is successfully transitioning laboratory research into viable commercial products for the 21st century. T. Mensah, B. Wang, G. Bothun, J. Winter, and V. Davis, 1st edn, October 2017, Wiley AIChE, New York, NY USA, ISBN-13: 9781119371724, 448 pp.
Essentials of Chemical Reaction Engineering H. Scott Fogler builds on the strengths of the previous edition to enable students to learn chemical reaction engineering through logic rather than memorization. This is the complete, modern introduction to chemical reaction engineering for today's readers: students who demand instantaneous access to information, have no time to waste, and want to enjoy learning as they build their critical thinking and creative problem solving skills. Fogler provides extensive resources to help students gain a deep intuitive understanding of how reactors behave in diverse situations, providing more than 60 realistic interactive simulations on the associated website which offers tools, videos, and games designed to support students with many different learning styles. By integrating algorithms, modern computational techniques, the companion website, interactive computer modules, and project-based learning with open-ended problems, Fogler has created an unsurpassed learning platform for today's chemical engineering student. H. S. Fogler, 2nd edn, October 2017, Pearson Education, Prentice Hall, Upper Saddle River, NJ USA, ISBN-13: 978-0134663890, 800 pp.
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