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    Step-change in Enhancing Extrusion as a Unit Operation

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    Publication date
    2005
    Author
    Benkreira, Hadj
    Keyword
    Extrusion
    Polymer Processing
    Solid Conveying
    Mixing
    Pumping
    Melting
    Rights
    © 2005 IChemE. Reproduced in accordance with the publisher's self-archiving policy.
    Peer-Reviewed
    Yes
    
    Metadata
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    Abstract
    Extrusion-a unit operation in polymer processing has been in extensive use since the great age of plastic technology. It is a simple operation that enables within one equipment the sequential conveying of solid polymer chips or powder, their melting, mixing, pumping and shaping via a die into a variety of high tonnage and/or value products. Pipes, bottles, films are the most common examples but the list of applications is endless from tiny micromoulded parts to large structural profiles. Extrusion is not limited to plastics but is used hot or cold to process soft solids like food, industrial and pharmaceutical pastes, as well as metals and ceramics. Most of the advances in extrusion processing have concentrated in improving the essential functions of extrusion: solid conveying, melting, pumping and mixing. The literature abounds with descriptions of such advances pushing the limits of the extrusion in an incremental way. In this paper, we describe step-changes in enhancing extrusion, which opens up new applications to better old technology-make them safer, cheaper and cleaner. The new designs presented in this paper have also the potential to develop new reactor technology for viscous fluids.
    URI
    http://hdl.handle.net/10454/861
    Citation
    Benkreira, H. Step-change in Enhancing Extrusion as a Unit Operation. The 7th World Congress on Chemical Engineering. Glasgow. 10-14 July 2005. Proceedings of the 7th World Congress on Chemical Engineering. Glasgow, IChemE, 2005.
    Link to publisher’s version
    http://www.icheme.com/books
    Type
    Conference paper
    Collections
    Engineering and Informatics Publications

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