Assumed Mechanism of Polymeric Deposit Formation in Recycle Propylene Washing Column during Bulk Polymerization

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This study presents the results of polymeric deposit analysis from propylene washing column of «Spheripol» process polymerization unit using such methods as gel-permation chromatography, differential scanning calorimetry (DSC), X-ray phase analysis, IR and NMR13C-spectroscopy and analytical process control methods. For comparison the relative data for larger volume polypropylene grades have been presented as well. Based on the findings and available similar practice in a slurry process an assumed formation mechanism was proposed for the discussion.

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179-186

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April 2015

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© 2015 Trans Tech Publications Ltd. All Rights Reserved

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