Post-treatment device and method for carbon dioxide-based polycarbonate diol

The invention relates to a post-treatment device and method for carbon dioxide-based polycarbonate diol. The post-treatment device comprises a first washing stripper, a first separation tower, a second washing stripper, a second separation tower and a vacuum dryer. The first washing stripper is conn...

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Bibliographische Detailangaben
Hauptverfasser:	HUANG SHAOYUAN, XU YANGBIN, TAN XINBO, YANG WUBIN, CHEN YONGQIANG
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY COMPOSITIONS BASED THEREON MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY MIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SEPARATION THEIR PREPARATION OR CHEMICAL WORKING-UP THEIR RELEVANT APPARATUS TRANSPORTING
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Beschreibung
Zusammenfassung:	The invention relates to a post-treatment device and method for carbon dioxide-based polycarbonate diol. The post-treatment device comprises a first washing stripper, a first separation tower, a second washing stripper, a second separation tower and a vacuum dryer. The first washing stripper is connected with a crude product source and a hot water source, so that a crude product and hot water are mixed in the first washing stripper, and a first mixture is obtained; the first separation tower is connected with the first washing stripper, so that the first mixture is subjected to standing layering, and a first intermediate is obtained; the second washing stripper is connected with the first separation tower, and the second washing stripper is connected with a hot water source, so that the first intermediate and hot water are mixed in the second washing stripper, and a second mixture is obtained; the second separation tower is connected with the second washing stripper, so that the second mixture is subjected to