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  • 1
    UID:
    b3kat_BV037195558
    Format: 1 Online-Ressource , 109 b&w, halftones
    ISBN: 1849730768 , 9781849730761
    Series Statement: RSC Green chemistry v. 4
    Note: This book describes carbon-hydrogen bond formations in aqueous media via radical reactions with a specific focus on Hydrogen Atom Transfer, Chemists are now moving away from volatile, environmentally harmful, and biologically incompatible organic solvents. With its low cost, ready availability, and capacity to remove environmentally unfriendly by-products, water is an obvious replacement. Recent advances in free radical chemistry in water have expanded the versatility and flexibility of homolytic carbon-hydrogen, carbon-carbon, carbon-halogen, carbon-nitrogen bond formations in aqueous media. This textbook highlights the substantial progress which has been made in the last decade to "tame" the reactive free radical species in aqueous phase reactions. It describes carbon-hydrogen bond formations in aqueous media via radical reactions with a specific focus on HAT (Hydrogen Atom Transfer). Suitable for students of chemistry, industrial chemists and academic researchers, it combines extensive knowledge of free radical chemistry with the latest innovations and creative applications. Divided into five main areas, it covers the: generation of carbon centred free radicals; radical initiators; solubility of substrate; suitability of free radical hydrogen donors, and HAT reactions in aqueous media. The book describes radical reactions in organic and aqueous media and their applications in total synthesis, DNA structural probing, isotope labelling, living polymerization and various other applications. It shows that, armed with an elementary knowledge of kinetics and some common sense, it is possible to harness radicals into tremendously powerful tools for solving synthetic problems. Written with the needs of students in mind, it offers just the right level of detail for undergraduate study. All the basic principles and facts on each topic area are presented in a concise yet++ , comprehensive style that is appropriate for both core and specialist courses. It provides a step-wise introduction, taking students from the basic principles of radical reactions through to their applications in industry and their role in biological and environmental processes. Case studies are used to illustrate reactions in landmark synthesis and problems, with outlined answers, test the reader's understanding. There are also suggestions for further reading
    Language: English
    Subjects: Chemistry/Pharmacy
    RVK:
    Keywords: Electronic books
    URL: Volltext  (Deutschlandweit zugänglich)
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  • 2
    UID:
    b3kat_BV037195487
    Format: 1 Online-Ressource (144 p.) , 95 b&w, ill
    ISBN: 1847558305 , 9781847558305
    Series Statement: RSC Green chemistry v. 1
    Note: This book depicts how practical limitations posed by glycerol chemistry are solved based on the understanding of the fundamental chemistry of glycerol and by application of catalysis science and technology, By-products of global biodiesel manufacturing are a global fact and the immense amount of glycerol by-product stacking unsold until mid 2005 gave a visual image of the huge loss of energy and material resources. This was due to the lack of suitable conversion processes for this, the oldest organic molecule known to man, despite various experiments by some biodiesel producers. The large surplus of glycerol by-product which entered the chemical market has caused closure of existing glycerol plants and the discovery of processes that use glycerol as a raw material for the production of value-added chemicals and even of energy. This was followed by 3-4 years of intense research activity worldwide, where human chemical ingenuity opened up a number of practical avenues to convert glycerol into value added products of mass consumption. For instance, the batteries of your laptop and iPod, as well as your car's antifreeze will soon be based on glycerol, the same sweet viscous substance currently present in soaps. Reporting and commenting on such achievements this book aims to inform chemistry professionals, including managers and technologists, on the large potential of glycerol as versatile biofeedstock for the production of a variety of chemicals, polymers and fuels. Whilst filling a gap in the current literature, this nicely illustrated book is written in a clear, concise style and presents the numerous uses of glycerol as a new raw material which are starting to have an impact on industry worldwide. Elucidation of the principles governing the new chemistry of glycerol goes along with updated industrial information that is generally difficult to retrieve. Through i++ , ts 10 chapters, the monograph tells the story of a chemical success -- that of converting glycerol into value added products -- and highlight the principles that made it possible. Whether as solvent, antifreeze, detergent, monomer for textiles or drug, new catalytic conversions of glycerol have been discovered that are finding application for the synthesis of products whose use range from everyday life to the fine chemical industry. Readers are also shown how a number of practical limitations posed by glycerol chemistry, such as the low selectivity encountered employing traditional stoichiometric and older catalytic conversions, were actually solved based on the understanding of the fundamental chemistry of glycerol and by application of catalysis science and technology. Readers also find a thorough discussion on the sustainability issues of bioglycerol production covering societal, environmental and economic dimensions to reflect the needs of politicians and citizens of today who require cross border research. By explaining the advantages and problems as well as offering solutions the book aids understanding as to whether biodiesel and glycerol refineries are convenient and economically sound. Chemical research on glycerol has shown that given a strong economic input, chemists are able to rapidly devise a whole set of new upgrading processes for the biorefinery and that the latter integrated unity for production energy and chemicals is not just dream of environmentally-minded scientists but an inevitable reality of today. Due to the ever decreasing energy return on energy invested, global society is being forced to switch from fossil to renewable fuels until cheap and abundant energy of solar origin becomes a reality. In this evolution, biofuels, particularly biodiesel, will certainly play a role and therefore, glycerol will be a key raw material for the biore++n , ery for many years to come. Dealing with such a hot topic of urgent scientific and commercial interest, this is a true "living book" in which updates will be posted yearly on the RSC website. The book's users include industry's top managers and management consultants and also R&D and marketing managers. Along with technical content of a high quality, this is also a strategic book for top managers of the chemical, biofuel, oleochemical and detergent industries
    Language: English
    Keywords: Electronic books
    URL: Volltext  (Deutschlandweit zugänglich)
    URL: Volltext  (Deutschlandweit zugänglich)
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  • 3
    UID:
    b3kat_BV037195530
    Format: 1 Online-Ressource (292 p.) , 339 b&w, 4 col.ill., halftones
    ISBN: 184755976X , 9781847559760
    Series Statement: RSC Green chemistry v. 3
    Note: This book is devoted to the preparation of fine chemicals by new emerging approaches in the field of eco-friendly processes and procedures, The 20th century has seen a phenomenal growth in the global economy and continuous improvement in the standard of living in the industrialized countries. Sustainable development has become an ideal target in recent years and in the early 1990s the concept of "Green chemistry" was launched in the USA as a new paradigm, and since 1993 it has been promoted by the National Science Foundation (NSF) and the Environmental Protection Agency (EPA). The success of the pharmaceutical industry is, in large part, due to the towering achievement of organic chemistry, a mature science which emerged as a distinct discipline well over 150 years ago, however this has been both a blessing and a curse. Many of our most reliable strategies for assembling target molecules employ reactions which are fifty to one hundred years old and are often named in honour of their discoverers. During these early years, the chronic toxicological properties of chemicals were often completely unknown and many unwittingly became indispensable tools of the trade. Early pioneers in green chemistry included Trost (who developed the atom economy principle) and Sheldon (who developed the E-Factor). These measures were introduced to encourage the use of more sustainable chemistry and provide some benchmarking data to encourage scientists to aspire to more benign synthesis. Green chemistry is essentially the design of chemical processes and procedures that reduce or eliminate the use, or the generation, of hazardous substances. Green chemistry is a growing area of research and an increasing number of researchers are now involved in this field. The number of publications has dramatically increased and new recognition of advances made is necessary with respect to other res++ , earch areas. The synthesis of "Fine Chemicals" represents one of the main goals in organic synthesis and this new book extensively examines the main processes and procedures for their preparation under eco-friendly conditions. The book is a collection of selected research topics delivered by scientists involved in some of the more prominent fields of green chemistry. It is devoted to the synthesis of fine chemicals by the use of alternative eco-friendly solvents (ionic liquids, polyethylene glycol, water, etc.) , supported organic catalysis, microwave irradiation or high pressure as contributors to more efficient processes, photochemistry as a green procedure and solvent-free processes. Each chapter gives an introduction to the various methods or procedures and their contribution to green chemistry and a variety of the most representative examples of the eco-friendly synthesis of fine chemicals are reported and discussed. In addition, there is a chapter dedicated to the application of simple reaction to the synthesis of complex molecules.The chapters are all written by authors who are experts in their field and are exhaustively referenced and the book will be invaluable for researchers and industrialists as well as academia
    Language: English
    Keywords: Feinchemikalie ; Chemische Synthese ; Umweltverträglichkeit ; Aufsatzsammlung
    URL: Volltext  (Deutschlandweit zugänglich)
    URL: Volltext  (Deutschlandweit zugänglich)
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  • 4
    Book
    Book
    New York, NY u.a. :VCH,
    UID:
    almahu_BV009719825
    Format: XI, 126 S. : graph. Darst.
    ISBN: 1-56081-507-8
    Language: English
    Subjects: Chemistry/Pharmacy
    RVK:
    RVK:
    Keywords: Organische Synthese ; Trägerfixiertes Reagenz ; Anorganische Verbindungen ; Katalyse ; Organische Synthese ; Trägerkatalysator ; Anorganische Verbindungen
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  • 5
    Book
    Book
    Berlin [u.a.] :Springer,
    UID:
    almafu_BV001003078
    Format: XII, 245 S. : Ill., graph. Darst.
    ISBN: 3-540-09375-3 , 0-387-09375-3
    Series Statement: Monographs on endocrinology 14
    Note: Literaturverz. S. [203] - 235
    Language: English
    Subjects: Biology
    RVK:
    RVK:
    Keywords: Steroide ; Sexualität ; Frau
    URL: Cover
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  • 6
    Book
    Book
    Chichester, U.K. :Wiley,
    UID:
    almahu_BV035263656
    Format: XIV, 184 S. : , Ill.
    Edition: 1. publ.
    ISBN: 0-470-05805-6 , 978-0-470-05805-3
    Series Statement: Wiley series in renewable resources
    Language: English
    Subjects: Engineering , Biology
    RVK:
    RVK:
    RVK:
    Keywords: Biomasseverarbeitung ; Organische Verbindungen ; Biomasse ; Organische Verbindungen ; Natürliche Ressourcen
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  • 7
    Online Resource
    Online Resource
    Oxford, England :Woodhead Publishing,
    UID:
    almafu_9959235061202883
    Format: 1 online resource (684 p.)
    Edition: 1st ed.
    ISBN: 1-61344-354-4 , 0-85709-049-6
    Series Statement: Woodhead Publishing Series in Energy, Number 15
    Content: In response to the global increase in the use of biofuels as substitute transportation fuels, advanced chemical, biochemical and thermochemical biofuels production routes are fast being developed.Research and development in this field is aimed at improving the quality and environmental impact of biofuels production, as well as the overall efficiency and output of biofuels production plants. The range of biofuels has also increased to supplement bioethanol and biodiesel production, with market developments leading to the increased production and utilisation of such biofuels as biosyngas
    Note: Description based upon print version of record. , Cover; Handbook of biofuels production: Processes and technologies; Copyright; Contents; Contributor contact details; Woodhead Publishing Series in Energy; Foreword; Part I Key issues and assessment of biofuels production; 1Introduction: an overview of biofuelsand production technologies; 1.1 Introduction; 1.2 Development of (bio)chemical conversion technologies; 1.3 Development of biological conversion technologies; 1.4 Development of thermochemical conversion technologies; 1.5 Integration of biofuels into biorefineries; 1.6 Future trends; 1.7 Acknowledgements , 1.8 Sources of further information1.9 References; 2Multiple objectives policy for biofuelsproduction: environmental, socio-economicand regulatory issues; 2.1 Introduction; 2.2 Energy security and supply; 2.3 Emission reductions, land use and other environmental impacts; 2.4 Food safety and development of rural areas; 2.5 Biofuels support policies; 2.6 Conclusions and future trends; 2.7 List of selected economies in Fig. 2.1 and 2.2, and Tables 2.1 and 2.2; 2.8 References; 3Life cycle sustainability assessment of biofuels; 3.1 Introduction , 3.2 Sustainability issues along the life cycle of biofuels3.3 Environmental sustainability of biofuels; 3.4 Economic sustainability of biofuels; 3.5 Future trends; 3.6 Appendix: Life cycle assessment (LCA) methodology; 3.7 Sources of further information; 3.8 References; 4Vegetable-based feedstocksfor biofuels production; 4.1 Introduction; 4.2 Most frequent vegetable raw materials to produce first-generation biodiesel; 4.3 Raw materials to produce low-cost biodiesel; 4.4 Vegetable raw materials to produce bioethanol; 4.5 Vegetable raw materials to produce biofuels from other technologies , 4.6 Acknowledgements4.7 References; Part II Biofuels from chemical and biochemical conversion processes and technologies; 5Production of biodiesel via chemicalcatalytic conversion; 5.1 Introduction; 5.2 Biodiesel definition; 5.3 Treatment of the feedstocks prior to production of the biodiesel; 5.4 Current technologies of biodiesel production; 5.5 Purification of biodiesel; 5.6 Industrial production of biodiesel; 5.7 Influence of the feedstock and technology on biodiesel properties; 5.8 Conclusions and future trends; 5.9 References; 6Biochemical catalytic production of biodiesel , 6.1 Introduction6.2 The enzymatic process; 6.3 Limitations of the enzymatic approach; 6.4 Sources of the enzyme: lipase; 6.5 Feedstock; 6.6 Acyl acceptors; 6.7 Effect of temperature; 6.8 Immobilized lipase; 6.9 Kinetics of enzymatic production of biodiesel; 6.10 Future trends; 6.11 Sources of further information; 6.12 References; 7Production of glycerol-free andalternative biodiesels; 7.1 Introduction; 7.2 Novel types of biodiesel: biofuels that incorporate glycerol into their composition; 7.3 Advantages in the use of biofuels integrating glycerol , 7.4 Processing of oils and fats in the current oil refining plants , English
    Additional Edition: ISBN 1-84569-679-4
    Language: English
    Keywords: Electronic books.
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  • 8
    UID:
    gbv_1685428029
    Format: Online-Ressource (200 p) , 200 b&w, halftones
    Edition: RSC eBook Collection 1968-2009
    ISBN: 1847559735 , 9781847559739
    Series Statement: RSC Green chemistry v. 5
    Content: Summarises new trends in organic synthesis, based on flow continuous processes, mini- and micro-reactors, homogeneous and heterogeneous catalysts and reagents, Pharmaceutical and fine chemical products are typically synthesised batchwise which is an anomaly since batch processes have a series of practical and economical disadvantages. On the contrary, flow continuous processes present a series of advantages leading to new ways to synthesise chemical products. Flow processes - * enable control reaction parameters more precisely (temperature, residence time, amount of reagents and solvent etc.) , leading to better reproducibility, safer and more reliable processes * can be performed more advantageously using immobilized reagents or catalysts * improve the selectivity and productivity of the process and possibly even the stability of the catalyst * offer opportunities for heat exchange and energy conservation as well as an easy separation and recycling of the reactants and products by adequate process design * achieve multistep syntheses by assembling a line of reactors with minimum or no purification in between two reaction steps * can be assured by facile automation * scale-up can be easily conducted by number-up With all the new research activity in manufacturing chemical products, this comprehensive book is very timely, as it summarises the latest trends in organic synthesis. It gives an insight into flow continuous processes, outlining the basic concepts and explaining the terminology of, and systems approach to, process design dealing with both homogeneous and heterogeneous catalysis and mini- or micro-reactors. The book contains case studies, extensive bibliographies and reference lists in each chapter to enable the reader to grasp the contents and to go on to more detailed texts on specific subjects if desired. The book is written by both organic chemists and engineers giving a multidisciplinary vision of the new tools and methodologies in this field. It is essential reading for organic chemists (in industry or academia) working alongside chemical engineers or who want to undertake chemical engineering projects. It will also be of interest for chemical engineers to see how basic engineering concepts are applied in modern organic chemistry
    Note: Ebook , Epublication based on: 9780854041923 , Functional Organic Materials for the development of efficient Flow-Through processes. Zeolites and related Materials for Developing Continuous Flow Systems. Microfluidic devices Engineering factors for efficient Flow processes Flow Processes in non-conventional media On-line monitoring Flow Processes. An industrial perspective.
    Language: English
    URL: Volltext  (Deutschlandweit zugänglich)
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  • 9
    UID:
    gbv_1685427715
    Format: Online-Ressource (300 p)
    Edition: RSC eBook Collection 1968-2009
    ISBN: 1847552684 , 9781847552686
    Series Statement: RSC Green chemistry v. 4
    Content: Outlines the contribution of chemistry and renewable chemical or biological resources to the sustainability concept and potential resolution of the world's energy problems, Limited supplies of fossil fuels and concerns about global warming have created a strong desire to solve the resource issue in the age "beyond petroleum". This reference book, from the "Green Chemistry Series", contains the essential areas of green chemistry and sustainability in modern economies. It is the first book to outline the contribution of chemistry, and of renewable chemical or biological resources, to the sustainability concept and to the potential resolution of the world's energy problems. It describes the current status of technical research, and industrial application, as well as the potential of biomass as a renewable resource for energy generation in power stations, as alternative fuels, and for various uses in chemistry. It outlines the historical routes of the sustainability concept and specifies sustainability in metrics, facts and figures. The book is written by European experts from academia, industry and investment banking who are world leaders in research and technology regarding sustainability, alternative energies and renewable resources. The sustainability aspects covered include: * consumer behaviour and demands, lifestyles and mega trends, and their impact on innovation in the industry * consumer industry requirements and their impact on suppliers * emerging paradigm changes in raw material demand, availability, sourcing, and logistics * the contribution of the industry to restore the life support systems of the Earth * socially responsible banking and investment * sustainability metrics The book highlights the potential of the different forms of renewable raw materials including: * natural fats and oils * plant-based biologically active ingredients * industrial starch * sucrose * natural rubber * wood * natural fibres It also covers the actual status of biomass usage for green energy generation, green transportation, green chemistry and sustainable nutrition and consumer goods, and it depicts the potentials of green solvents and white biotechnology for modern synthesis and manufacturing technologies. The book is aimed at technical and marketing people in industry, universities and institutions as well as readers in administrations and NGOs. The book will also be of value to the worldwide public interested in sustainability issues and strategies as well as others interested in the practical means that are being used to reduce the environmental impact of chemical processes and products, to further eco-efficiency, and to advance the utilization of renewable resources
    Note: Ebook , Epublication based on: 9781847559050
    Additional Edition: ISBN 1847552684
    Additional Edition: ISBN 9781847552686
    Language: English
    URL: Volltext  (Deutschlandweit zugänglich)
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  • 10
    UID:
    almafu_BV002731400
    Format: 226 S. : Ill., graph. Darst.
    ISBN: 3-8200-1204-4
    Series Statement: Life sciences research reports 3
    Language: English
    Subjects: Biology
    RVK:
    RVK:
    Keywords: Cytologie ; Hormon ; Cytologie ; Antihormon ; Zielzelle ; Antihormon ; Zielzelle ; Hormon ; Konferenzschrift
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