Method for removing SBS homogeneous hydrogenation catalyst in SEBS solution

The invention discloses a method for removing an SBS homogeneous hydrogenation catalyst in an SEBS solution. The method comprises the following steps: S1, pumping a complexing extraction agent solution from the upper part of a turntable extraction tower; s2, pumping an SEBS solution containing a tit...

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Hauptverfasser: LYU HUI, CAO GUIPING, PAN SHAOFENG, HE RUI
Format: Patent
Sprache:chi ; eng
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Beschreibung
Zusammenfassung:The invention discloses a method for removing an SBS homogeneous hydrogenation catalyst in an SEBS solution. The method comprises the following steps: S1, pumping a complexing extraction agent solution from the upper part of a turntable extraction tower; s2, pumping an SEBS solution containing a titanocene dichloride catalyst from the lower part of the turntable extraction tower; s3, fully mixing and contacting the complexing extraction agent solution and the SEBS solution in the turntable extraction tower; s4, the complexing extraction agent solution enters a tower bottom oil separation section, and oil-water separation is achieved; and S5, enabling the SEBS solution without the catalyst to enter a tower top bleeding section to realize oil-water separation, and then removing the solvent in the SEBS according to a common process to obtain the SEBS rubber block. The method for removing the SBS homogeneous hydrogenation catalyst in the SEBS solution is green, efficient, simple in operation technological process