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Separation of Polymethylene Polyphenyl Polyisocyanate (PMPPI) from the PMPPI-Chlorobenzene Pyrolysis Liquid Using Molecular Distillation
LONG Shi-liang CAO Yan LI Hui-quan CHEN Jia-qiang WANG Li-guo HUANG Ke-lin
. 2014, (4): 587 -592 .