Polyethylene Terephthalate Production Process - Cost Analysis - PET E12A


Book Description

This report presents a cost analysis of Polyethylene Terephthalate (PET) production from ethylene glycol and purified terephthalic acid (PTA). The process examined is similar to Invista NG3 process. In this process, PET oligomers are first polymerized in a melt-phase step, and then passed through a solid-state polymerization step. This report was developed based essentially on the following reference(s): US Patents 5786443 and 5730913, both issued to DuPont in 1998 (both assigned to Invista in 2004) Keywords: Thermoplastic Polymer, Polyester, High Intrinsic Viscosity, Melt-Phase Polycondensation




Paraxylene Production from Mixed Xylenes - Cost Analysis - Paraxylene E12A


Book Description

This report presents a cost analysis of para-Xylene production from mixed xylenes with o-xylene co-production. The process examined is a xylene isomerization process with ethylbenzene (EB) isomerization. In this process, p-Xylene is recovered from a mixture of C8 aromatics via an adsorption unit. The remaining xylenes as well as the ethylbenzene are isomerized and the product from isomerization is recycled to the adsorption unit. Part of the o-xylene is also recovered as by-product. This report was developed based essentially on the following reference(s): (1) US Patent 7301064, issued to UOP in 2007 (2) US Patent 3997620, issued to UOP in 1976 Keywords: Mixed Xylenes, C8 Aromatics, UOP, PAREX, Isomar, Axens, Eluxyl, ExxonMobil, Oparis, MHAI




Terephthalic Acid Production from p-Xylene - Cost Analysis - TPA E12A


Book Description

This report presents a cost analysis of Purified Terephthalic Acid (PTA) production from p-xylene. The process examined is a conventional catalytic oxidation process. In this process, p-xylene is oxidized to Terephthalic Acid. The Terephthalic Acid from reaction passes through separation and drying steps and Crude Terephthalic Acid (CTA) is obtained as an intermediate. Subsequently, the CTA is subjected to purification via hydrogenation and PTA is separated as the final product. This report was developed based essentially on the following reference(s): (1) US Patent 5292934, issued to Amoco in 1994 (2) EP Patent 0824653, issued to DuPont in 2000 (3) US Patent 9018415, issued to Davy Process Technology in 2015 Keywords: Para-xylene, Paraxylene, TPA, CTA, Hydrogenation, Amoco, Catalytic Oxidation, Acetic Acid, BP, X Technology, PET, Polyethylene Terephthalate, Bromine




Polypropylene Homopolymer via Hybrid Process - Cost Analysis - PP E12A


Book Description

This report presents a cost analysis of Polypropylene (PP) homopolymer production from polymer grade (PG) propylene using a hybrid (slurry/gas phase) process. The process examined is similar to Borealis BORSTAR process. This process is based on a dual reactor system (slurry and gas phase reactors) to produce PP homopolymer. This report was developed based essentially on the following reference(s): (1) US Patent 6339136, issued to Borealis in 2002 (2) US Patent 6559348, issued to Borealis in 2003 Keywords: PG Propylene, Propene, Dual Reactor System, Slurry Reactor, Tubular Reactor, Loop Reactor




Nanomaterials by Severe Plastic Deformation


Book Description

These proceedings of the "Second International Conference on Nanomaterials by Severe Plastic Deformation" review the enormous scientific avalanche that has been developing in the field over recent years. A valuable resource for any scientist and engineer working in this emerging field of nanotechnology.




Polyethylene Terephthalate Production Process - Cost Analysis - PET E11A


Book Description

This report presents a cost analysis of Polyethylene Terephthalate (PET) production from ethylene glycol and purified terephthalic acid (PTA). The process examined is a typical melt-phase polymerization followed by solid-state polymerization. In this process, initially an oligomer intermediate is produced by the esterification of PTA with ethylene glycol. The oligomer then undergoes a melt-polymerization and a solid-state polymerization, leading to a bottle grade PET. This report was developed based essentially on the following reference(s): (1) "Polyesters, Thermoplastic", Kirk-Othmer Encyclopedia of Chemical Technology, 5th edition (2) "Polyesters", Ullmann's Encyclopedia of Industrial Chemistry, 7th edition Keywords: Thermoplastic Polymer, Polyester, High Intrinsic Viscosity, Melt-Phase Polycondensation




Thermoacoustics


Book Description

This updated new edition provides an introduction to the field of thermoacoustics. All of the key aspects of the topic are introduced, with the goal of helping the reader to acquire both an intuitive understanding and the ability to design hardware, build it, and assess its performance. Weaving together intuition, mathematics, and experimental results, this text equips readers with the tools to bridge the fields of thermodynamics and acoustics. At the same time, it remains firmly grounded in experimental results, basing its discussions on the distillation of a body of experiments spanning several decades and countries. The book begins with detailed treatment of the fundamental physical laws that underlie thermoacoustics. It then goes on to discuss key concepts, including simple oscillations, waves, power, and efficiency. The remaining portions of the book delve into more advanced topics and address practical concerns in applications chapters on hardware and measurements. With its careful progression and end-of-chapter exercises, this book will appeal to graduate students in physics and engineering as well as researchers and practitioners in either acoustics or thermodynamics looking to explore the possibilities of thermoacoustics. This revised and expanded second edition has been updated with an eye to modern technology, including computer animations and DeltaEC examples.




Materials Under Extreme Conditions


Book Description

Materials Under Extreme Conditions: Recent Trends and Future Prospects analyzes the chemical transformation and decomposition of materials exposed to extreme conditions, such as high temperature, high pressure, hostile chemical environments, high radiation fields, high vacuum, high magnetic and electric fields, wear and abrasion related to chemical bonding, special crystallographic features, and microstructures. The materials covered in this work encompass oxides, non-oxides, alloys and intermetallics, glasses, and carbon-based materials. The book is written for researchers in academia and industry, and technologists in chemical engineering, materials chemistry, chemistry, and condensed matter physics. - Describes and analyzes the chemical transformation and decomposition of a wide range of materials exposed to extreme conditions - Brings together information currently scattered across the Internet or incoherently dispersed amongst journals and proceedings - Presents chapters on phenomena, materials synthesis, and processing, characterization and properties, and applications - Written by established researchers in the field




Community Pharmacy


Book Description

Now in its fourth edition, this best-selling book is fully updated to address the ever increasing demands on healthcare professionals to deliver high-quality patient care. A multitude of factors impinge on healthcare delivery today, including an ageing population, more sophisticated medicines, high patient expectation and changing health service infrastructure. Time demands on primary care doctors have caused other models of service delivery to be adopted across the world, leading to ongoing changes in the traditional boundaries of care between doctors, nurses, and pharmacists. Certain medical tasks are now being performed by nurses and pharmacists, for example prescribing. Healthcare policies to encourage patients to manage their own health have led to more medicines becoming available over the counter, allowing community pharmacists to manage and treat a wide range of conditions. Further deregulation of medicines to treat acute illness from different therapeutic areas seems likely. Government policy now encourages chronic disease management as a self-care activity, and could well be the largest area for future growth of reclassification of medicines. Pharmacists, now more than ever before, need to be able to recognise the signs and symptoms, and use an evidence-based approach to treatment. Community Pharmacy is intended for all non-medical prescribers but especially for pharmacists, from undergraduate students to experienced practitioners. Key features - Guidance for arriving at a differential diagnosis - Practical prescribing tips - Trigger points for referral boxes - Other hints and tips boxes - Specific questions to ask boxes - Case studies - Self-assessment questions Consistent approach gives: - Anatomy overview - History taking and physical examination - Prevalence and epidemiology - Aetiology - Arriving at a differential diagnosis - Clinical features - Conditions to eliminate Likely causes Unlikely causes Very unlikely causes - Evidence base for OTC medicine - Practical prescribing and product selection - More on the examination of eyes, ears and mouth - New sections on future-proofing (vaccinations etc.) - New material covering inter-professional education for clinical skills. Now with a free accompanying e-book on StudentConsult which also gives additional material on: - evidence-based medicine - videos on physical examination - additional written case studies - more multiple-choice questions