Acetaldehyde Trimerisation 1\0 Acetal Formation 94 Acid Catalysis 525
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New Synthesis Routes for Production of Ε-Caprolactam by Beckmann
New synthesis routes for production of ε-caprolactam by Beckmann rearrangement of cyclohexanone oxime and ammoximation of cyclohexanone over different metal incorporated molecular sieves and oxide catalysts Von der Fakultät für Mathematik, Informatik und Naturwissenschaften der RWTH Aachen University zur Erlangung des akademischen Grades eines Doktors der Naturwissenschaften genehmigte Dissertation vorgelegt von Anilkumar Mettu aus Guntur/Indien Berichter: Universitätprofessor Dr. Wolfgang F. Hölderich Universitätprofessor Dr. Carsten Bolm Tag der mündlichen Prüfung: 29.01.2009 Diese Dissertation ist auf den Internetseiten der Hochschulbibliothek online verfügbar. Dedicated to my Parents This work reported here has been carried out at the Institute for Chemical Technolgy and Heterogeneous Catalysis der Fakultät für Mathematik, Informatik und Naturwissenschaften in the University of Technology, RWTH Aachen under supervision of Prof. Dr. Wolfgang F. Hölderich between June 2005 and August 2008. ACKNOWLEDGEMENTS I would like to express my deepest sence of gratitude to my supervisor Prof. Dr. rer. nat. W. F. Hölderich for giving me the opportunity to do my doctoral study in his group. His guidance and teaching classes have allowed me to grow and learn my subject during my Ph.d. He has provided many opportunities for me to increase my abilities as a researcher and responsibilities as a team member. I am grateful for the financial support of this work from Sumitomo Chemicals Co., Ltd, Niihama, Japan (Part One) and Uhde Inventa-Fischer GmBH, Berlin (Part Two). Our collaborators at Sumitomo Chemicals Co., Ltd (Dr. C. Stoecker) and Uhde Inventa- Fischer GmBH (Dr. R. Schaller and Dr. A. Pawelski) provided thoughtful guidance and suggestions for each project. -
Handbook of Less-Common Nanostructures
HANDBOOK OF LESS-COMMON NANOSTRUCTURES Boris I. Kharisov • Oxana Vasilievna Kharissova Ubaldo Ortiz-Mendez CRC Press Taylor &. Francis Croup Boca Raton London NewYork CRC Press is an imprint of the Taylor & Francis Group, an Informa business Contents Abbreviations xix Preface xxiii Acknowledgments xxv Authors xxvii PART I Introduction to Nanostructures Chapter 1 Methods for Obtaining Nanoparticles and Other Nanostructures 3 1.1 General Remarks on Nanoparticle Fabrication 3 1.2 Examples of Several Important Methods for the Synthesis of Nanoobjects 3 1.2.1 Vapor and Plasma-Based Techniques 3 1.2.2 Electrochemical Methods 10 1.2.3 Microwave, Ultrasonic, and UV-Irradiation Techniques 14 1.2.4 High-Pressure Methods 18 1.2.5 Use of Microfluidic Chips 20 1.2.6 Synthesis in Reversed Micelles 21 1.2.7 Hot-Plate Method 21 1.2.8 Other Chemical Routes 22 1.2.9 Biochemical and Self-Assembly Methods 24 1.3 "Green" Aspects of Nanoparticle Synthesis 26 References 27 Chapter 2 Brief Description of Some Classic Nanostructures 31 2.1 Carbon-Based Nanostructures 31 2.1.1 Carbon Nanotubes 31 2.1.2 Fullerenes 34 2.1.3 Nanodiamonds 35 2.1.4 Graphene and Graphane 37 2.2 Conventional Noncarbon Nanostructures 38 2.2.1 Simple and Core-Shell Nanoparticles 38 2.2.2 Nanometals 42 2.2.3 Gallery of Other Conventional Nanostructures 42 References 48 PART II Less-Common Nanostructures Chapter 3 Simple, Linear ID, 2D, and 3D Nanostructures 57 3.1 Nanolines 57 3.2 Nanopencils 61 ix X Contents 3.3 Nanodumbbells 66 3.4 Nanoshuttles 70 3.5 Nanopeapods 73 3.6 Nanopins 77 3.7 -
Synthesis of Functionalized Polyamide 6 by Anionic Ring-Opening Polymerization Deniz Tunc
Synthesis of functionalized polyamide 6 by anionic ring-opening polymerization Deniz Tunc To cite this version: Deniz Tunc. Synthesis of functionalized polyamide 6 by anionic ring-opening polymerization. Poly- mers. Université de Bordeaux; Université de Liège, 2014. English. NNT : 2014BORD0178. tel- 01281327 HAL Id: tel-01281327 https://tel.archives-ouvertes.fr/tel-01281327 Submitted on 2 Mar 2016 HAL is a multi-disciplinary open access L’archive ouverte pluridisciplinaire HAL, est archive for the deposit and dissemination of sci- destinée au dépôt et à la diffusion de documents entific research documents, whether they are pub- scientifiques de niveau recherche, publiés ou non, lished or not. The documents may come from émanant des établissements d’enseignement et de teaching and research institutions in France or recherche français ou étrangers, des laboratoires abroad, or from public or private research centers. publics ou privés. Logo Université de cotutelle THÈSE PRÉSENTÉE POUR OBTENIR LE GRADE DE DOCTEUR DE L’UNIVERSITÉ DE BORDEAUX ET DE L’UNIVERSITÉ DE LIEGE ÉCOLE DOCTORALEDE SCIENCES CHIMIQUES (Université de Bordeaux) ÉCOLE DOCTORALE DE CHIMIE (Université de Liège) SPÉCIALITÉ POLYMERES Par Deniz TUNC Synthesis of functionalized polyamide 6 by anionic ring-opening polymerization Sous la direction de Stéphane CARLOTTI et Philippe LECOMTE Soutenue le 30 octobre 2014 Membres du jury: M. PERUCH, Frédéric Directeur de recherche, Université de Bordeaux Président M. HOOGENBOOM, Richard Professeur, Ghent University Rapporteur M. MONTEIL, Vincent Chargé de recherche, Université Claude Bernard Rapporteur M. YAGCI, Yusuf Professeur, Istanbul Technical University Examinateur M. AMEDURI, Bruno Directeur de recherche, Institut Charles Gerhardt Examinateur M. SERVANT, Laurent Professeur, Université de Bordeaux Invité Preamble This PhD had been performed within the framework of the IDS FunMat joint doctoral programme. -
Influence of Ε-Caprolactam on Growth and Physiology of Environmental Bacteria
Ann Microbiol (2013) 63:1471–1476 DOI 10.1007/s13213-013-0610-4 ORIGINAL ARTICLE Influence of ε-caprolactam on growth and physiology of environmental bacteria Nandita N. Baxi Received: 14 July 2012 /Accepted: 22 January 2013 /Published online: 24 February 2013 # Springer-Verlag Berlin Heidelberg and the University of Milan 2013 Abstract ε-Caprolactam was found to have an effect on Introduction ecologically important soil bacteria. It inhibited the growth of several Bacillus sp. and Rhizobium sp. but cells of Microbial activity in soil has numerous functions contribut- Arthrobacter sp. were able to grow in the presence of capro- ing to soil fertility. It is involved in organic nutrient cycles, lactam. Sphingomonas sp. lost its inherent capacity to produce the release of minerals and fixation of nutrients from the air, extracellular polymer (EPS) if grown in medium containing rendering nutrients more accessible and easily transportable caprolactam. In the case of raw domestic sewage, the diversity to plant roots, prevention of aggressive plant pathogens of native bacteria was diminished in presence of caprolactam. taking hold, improving the ability of plants to withstand Polluted sea water yielded predominantly one type of disease effects, the decrease of inorganic fertilizer loss caprolactam-degrading bacteria of the genus Achromobacter. through erosion and leaching, short-term immobilization, These cells efficiently utilized up to 10 g caprolactam/L as the and decrease of persistence of pesticides in soils. However, sole source of carbon and nitrogen in synthetic medium even the soil biological ecosystem (manifested both by microbial in the presence of 20 g NaCl/L. Compared to cells of and enzymatic activities) can be significantly impaired by Arthrobacter sp., cells of Achromobacter sp. -
Synthesis, Reactivity, and Catalysis of Group 3 and Lanthanide Alkyl Complexes
Synthesis, Reactivity, and Catalysis of Group 3 and Lanthanide Alkyl Complexes By Daniel Steven Levine A dissertation submitted in partial satisfaction of the requirements for the degree of Doctor of Philosophy in Chemistry in the Graduate Division of the University of California, Berkeley Committee in charge: Professor T. Don Tilley, Co-Chair Professor Richard A. Andersen, Co-Chair Professor Alexis T. Bell Summer 2016 Abstract Synthesis, Reactivity, and Catalysis of Group 3 and Lanthanide Alkyl Complexes by Daniel Steven Levine Doctor of Philosophy in Chemistry University of California, Berkeley Professor T. Don Tilley, Co-Chair Professor Richard A. Andersen, Co-Chair Chapter 1. A series of scandium dialkyl complexes, (PNP)ScR2 (R = neopentyl, trimethylsilylmethyl), supported by the monoanionic, chelating PNP ligand (2,5- bis(dialkylphosphinomethyl)pyrrolide; alkyl = cyclohexyl, tert-butyl) was synthesized and the reactivities of these complexes toward simple hydrocarbons was investigated. The scandium– carbon bonds undergo σ-bond metathesis reactions with hydrogen and these complexes are catalysts for the hydrogenation of alkenes. Reactions with primary amines led to formation of amido complexes that undergo cyclometalation via σ-bond metathesis, without involvement of an imido complex intermediate. A variety of carbon-hydrogen bonds are also activated, including sp-, sp2-, and sp3-C–H bonds (intramolecularly in the latter case). Levine, D. S.; Tilley, T. D.; Andersen, R. A. Organometallics 2015, 34 (19), 4647. Chapter 2. Terminal group 3 methylidene complexes are generated by thermolysis of monoanionic PNP-supported scandium and yttrium dialkyl complexes. The reaction mechanism has been probed by deuterium-labeling experiments and DFT calculations. Abstraction of a γ- hydrogen from one alkyl group by the other affords a metallacyclobutane that undergoes [2+2] cycloreversion, analogous to a key step in the olefin metathesis reaction, to generate a methylidene complex and isobutene. -
Green Chemistry Accepted Manuscript
Green Chemistry Accepted Manuscript This is an Accepted Manuscript, which has been through the Royal Society of Chemistry peer review process and has been accepted for publication. Accepted Manuscripts are published online shortly after acceptance, before technical editing, formatting and proof reading. Using this free service, authors can make their results available to the community, in citable form, before we publish the edited article. We will replace this Accepted Manuscript with the edited and formatted Advance Article as soon as it is available. You can find more information about Accepted Manuscripts in the Information for Authors. Please note that technical editing may introduce minor changes to the text and/or graphics, which may alter content. The journal’s standard Terms & Conditions and the Ethical guidelines still apply. In no event shall the Royal Society of Chemistry be held responsible for any errors or omissions in this Accepted Manuscript or any consequences arising from the use of any information it contains. www.rsc.org/greenchem Page 1 of 21 Green Chemistry Green Chemistry RSCPublishing CRITICAL REVIEW Catalytic Routes towards Acrylic Acid, Adipic Acid and ε-Caprolactam starting from Biorenewables Cite this: DOI: 10.1039/x0xx00000x Rolf Beerthuis, Gadi Rothenberg and N. Raveendran Shiju* Received 00th January 2012, The majority of bulk chemicals are derived from crude oil, but the move to biorenewable resources is Accepted 00th January 2012 gaining both societal and commercial interest. Reviewing this transition, we first summarise the types of today’s biomass sources and their economical relevance. Then, we assess the biobased productions DOI: 10.1039/x0xx00000x of three important bulk chemicals: acrylic acid, adipic acid and ε-caprolactam. -
Caprolactam 99/00-4
Caprolactam 99/00-4 March 2001 TABLE OF CONTENTS Page I EXECUTIVE SUMMARY - 1 - A. SYNOPSIS - 1 - B. TECHNOLOGY DEVELOPMENTS - 1 - 1. Enhancements to Conventional Technology - 2 - 2. Caprolactam from Alternative Sources - 2 - C. TECHNO-ECONOMICS - 5 - 1. Enhancements to Conventional Technology - 5 - 2. Routes Based on Butadiene - 5 - D. COMMERCIAL STATUS - 8 - 1. Consumption - 8 - 2. Supply/Demand Balance - 9 - 3. Trade - 9 - 4. Ammonium Sulfate - 10 - E. STRATEGIC ISSUES - 12 - 1. Cyclicality - 12 - 2. Nylon Feedstocks from One Source - 13 - F. NYLON RECYCLING - 14 - G. CONCLUSIONS - 15 - II INTRODUCTION - 16 - A. AIM OF THE STUDY - 1 - B. OVERVIEW - 17 - 1. Enhancements to Conventional Technology - 17 - 2. Caprolactam from Alternative Sources - 17 - C. CHEM SYSTEMS PRODUCTION COST METHODOLOGY - 20 - 1. Capital Cost Estimation - 20 - (a) Battery Limits Investment - 20 - (b) Off-Sites Investment - 21 - (c) Contractor Charges(2) Typically 15-25 Percent of Installed BL and OS Costs - 22 - (d) Project Contingency Allowance(2) - 22 - (e) Working Capital - 22 - (f) Other Project Costs(3) - 23 - (1) Start-Up/Commissioning Costs - 23 - (2) Miscellaneous Owner’s Costs - 23 - 2. Cost of Production Elements - 24 - (a) Battery Limits - 24 - (b) Production Costs - 25 - (1) Labor - 25 - TABLE OF CONTENTS (Continued) Page III CAPROLACTAM FROM AROMATIC-DERIVED FEEDSTOCKS - 26 - A. COMMERCIAL TECHNOLOGIES - 26 - 1. Overview - 26 - 2. Process Chemistry - 26 - (a) Cyclohexanone Synthesis - 26 - (b) Oxime Formation with Cyclohexanone Using Hydroxylamine -
Environmental Health Risk Assessment—Guidelines
Contents Figures .................................................................................................................................................................................. vi Tables ................................................................................................................................................................................... vii Objectives ............................................................................................................................................................................ viii Audience ............................................................................................................................................................................. viii Acknowledgments ................................................................................................................................................................. ix PART 1: BASIC CONCEPTS IN ENVIRONMENTAL HEALTH RISK ASSESSMENT ..................................................... 1 Chapter 1: Introduction to environmental health risk assessment .................................................................................................... 3 1.1 What is risk assessment? ............................................................................................................................................ 3 1.2 When to undertake risk assessment .......................................................................................................................... -
Extraction of Sulphuric Acid from Technological Solution of Hydroxylamine Sulphate
EXTRACTION OF SULPHURIC ACID FROM TECHNOLOGICAL SOLUTION OF HYDROXYLAMINE SULPHATE SK96K0041 Maciej Wisniewski, Mariusz Bogumil Bogacki and Jan Szymanowski Poznan University of Technology, Institute of Chemical Technology and Engineering, PL M. Sklodowskiej Curie 2, 60-965 Poznan, Poland In chemical industry waste liquid streams contain often mineral acids alone or in the presence of various salts. The concentration of these acids can differ significantly. However, this concentration is usually too small to obtain commercially acceptable products. Thus, such streams are neutralised with lime and dumped. They are also neutralised with ammonia forming appropriate ammonium salts which are used as low quality fertilizers. Important amounts of ammonium sulphate are produced in caprolactam plants in Poland. Cyclohexanone is oximated with hydroxylamine sulphate and the obtained oxime gives caprolactam by Beckmann rearrangement carried out in concentrated sulphuric acid. Sulphuric acid is neutralised with ammonia to ammonium sulphate. Recovery of sulphuric acid from post reaction mixture is one of the main factors which could permit to improve the economy of the process. Sulphuric acid is also present in hydroxylamine sulphate solution. In Nitrogen Chemical Plants in Pulawy and Tarnow, Poland the hydroxylamine sulphate is obtained by catalytic hydrogenation of nitrogen(II) oxide earned out in the presence of sulphuric acid. Ammonium sulphate is formed as the by-product. The technological solution contains 305-315 g/dm^ hydroxylamine sulphate, 35-45 g/dnP sulphuric acid and 10-20 g/dm^ ammonium sulphate. The aim of this work is to study the recovery of sulphuric acid from such technological solution. Cyanex 923 which contains trialkyl phosphine oxide as the active substance is used for sulphuric acid extraction. -
Organic Materials for Electronic Devices
Organic Materials for Electronic Devices by Lichang Zeng Submitted in Partial Fulfillment of the Requirements for the Degree Doctor of Philosophy Supervised by Professor Shaw H. Chen and Professor Ching W. Tang Department of Chemical Engineering Arts, Sciences and Engineering Edmund A. Hajim School of Engineering and Applied Sciences University of Rochester Rochester, New York 2010 ii To my family iii CURRICULUM VITAE Lichang Zeng was born in 1978 in Fujian, China. In 2001, he received a Bachelors of Engineering degree in Polymer Materials from Zhejiang University, Hangzhou, China. He continued on at Zhejiang University receiving his Master of Science degree in 2004. He then moved to the University of Rochester to pursue his doctorate in Chemical Engineering under the joint supervision of Professors Shaw H. Chen and Ching W. Tang, receiving a Master of Science degree in 2009. His field of research was in organic electronic materials and devices. Selected Publications in Referee Journals 1. Zeng, L. C.; Tang, C. W.; Chen, S. H. “Effects of Active Layer Thickness and Thermal Annealing on Polythiophene:Fullerene Bulk Heterojunction Photovoltaic Cells.” Applied Physics Letters, 2010, 97, 053305. 2. Zeng, L. C.; Blanton, T. N.; Chen, S. H. “Modulation of Phase Separation between Spherical and Rod-Like Molecules Using Geometric Surfactancy.” Langmuir 2010, 26, 12877. 3. Zeng, L. C.; Lee, T. Y. S.; Merkel, P. B.; Chen, S. H. “A New Class of Non-Conjugated Bipolar Hybrid Hosts for Phosphorescent Organic Light-Emitting Diodes.” Journal of Materials Chemistry 2009, 19, 8772. 4. Zeng, L. C.; Yan, F.; Wei, S. K. H.; Culligan, S. -
Sub-10 Nm Nano-Structured Carbohydrate-Based Block Copolymer Thin Films for Organic Photovoltaic Applications Yoko Otsuka
Sub-10 nm nano-structured carbohydrate-based block copolymer thin films for organic photovoltaic applications Yoko Otsuka To cite this version: Yoko Otsuka. Sub-10 nm nano-structured carbohydrate-based block copolymer thin films for organic photovoltaic applications. Theoretical and/or physical chemistry. Université Grenoble Alpes, 2017. English. NNT : 2017GREAV024. tel-01830370 HAL Id: tel-01830370 https://tel.archives-ouvertes.fr/tel-01830370 Submitted on 5 Jul 2018 HAL is a multi-disciplinary open access L’archive ouverte pluridisciplinaire HAL, est archive for the deposit and dissemination of sci- destinée au dépôt et à la diffusion de documents entific research documents, whether they are pub- scientifiques de niveau recherche, publiés ou non, lished or not. The documents may come from émanant des établissements d’enseignement et de teaching and research institutions in France or recherche français ou étrangers, des laboratoires abroad, or from public or private research centers. publics ou privés. THÈSE Pour obtenir le grade de DOCTEUR DE LA COMMUNAUTE UNIVERSITE GRENOBLE ALPES Spécialité : Chimie Physique Moléculaire et Structurale Arrêté ministériel : 7 août 2006 Présentée par Yoko OTSUKA Thèse dirigée par Redouane BORSALI préparée au sein du Centre de Recherche sur les Macromolécules Végétales (CERMAV) et du Centre de Technique du Papier (CTP) dans l'École Doctorale Chimie et Sciences du Vivant Films minces nanostructurés de domaines sub-10 nm à partir de copolymères biosourcés pour des applications dans le photovoltaïque organique Thèse soutenue publiquement le « 4 janvier 2017 », devant le jury composé de : M. Patrice RANNOU Directeur de Recherche au CNRS, SPrAM (Président) M. Martin BRINKMANN Directeur de Recherche au CNRS, ICS (Rapporteur) M. -
Active Metals • Preparation • Characterization • Applications
Active Metals • Preparation • Characterization • Applications Edited by Alois Fürstner Weinheim • New York VCH Basel • Cambridge • Tokyo Contents Preface V List of Contributors XVII 1 Rieke Metals: Highly Reactive Metal Powders Prepared by Alkali Metal Reduction of Metal Salts R. D. Rieke, M. S. Seil, W. R. Klein, T. Chen, J. D. Brown, and M. V. Hanson 1.1 Introduction 1 1.1.1 Physical Characteristics of Highly Reactive Metal Powders 3 1.2 Rieke Magnesium, Calcium, Strontium, and Barium 3 1.2.1 Formation of Rieke Magnesium 4 1.2.2 Formation of Rieke Calcium, Strontium, and Barium 4 1.2.3 Grignard Reactions Using Rieke Metals 5 1.2.4 1,3-Diene-Magnesium Reagents 7 1.2.4.1 Preparation 7 1.2.4.2 Regioselectivity 7 1.2.4.3 Carbocyclization of (l,4-Diphenyl-2-butene-l,4-diyl)magnesium with Organic Dihalides 8 1.2.4.4 1,2-Dimefhylenecycloalkane-Magnesium Reagents 11 1.2.4.5 Synthesis of Fused Carbocycles, ß, y-Unsaturated Ketones and 3-Cyclopentenols from Conjugated Diene-Magnesium Reagents 12 1.2.4.6 Synthesis of Spiro y-Lactones and Spiro (5-Lactones from 1,3-Diene- Magnesium Reagents 16 1.2.4.7 Synthesis of y-Lactams from Conjugated Diene-Magnesium Reagents ... 20 1.3 Rieke Zinc 24 1.3.1 The Preparation of Rieke Zinc 24 1.3.2 Direct Oxidative Addition of Functionalized Alkyl and Aryl Halides .... 24 1.3.3 Reactions of Organozinc Reagents with Acid Chlorides 25 1.3.4 Reactions of Organozinc Reagents with a,/?-Unsaturated Ketones 25 1.3.5 Reactions with Allylic and Alkynyl Halides 28 1.3.6 Cross-Coupling of Vinyl and Aryl Organozinc Reagents