| 摘要 |
A process for discharging a granular organic polymer, which is sensitive to molecular oxygen at elevated temperatures, from a treatment zone in which it has been continuously treated, at above 70 DEG C., with an inert gas which is free from molecular oxygen, and has subsequently been cooled, which process comprises withdrawing the polymer at </=50 DEG C. through a narrow elongate tubular discharge zone, the said zone always being filled with granular polymer.
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