Extraction process utilzing liquified carbon dioxide
    7.
    发明授权
    Extraction process utilzing liquified carbon dioxide 有权
    萃取过程利用液化二氧化碳

    公开(公告)号:US07915379B2

    公开(公告)日:2011-03-29

    申请号:US12342068

    申请日:2008-12-22

    IPC分类号: C08G65/46 C08G64/00

    摘要: A method for removing contaminants from synthetic resin material includes contacting a particulate synthetic resin material containing at least one contaminant with a solvent other than carbon dioxide. At least a portion of the contaminant is removed from the particulate synthetic resin material and becomes dispersed in the solvent. The solvent, with the contaminant dispersed therein, is then removed from the particulate synthetic resin material. Thereafter, at least a portion of the solvent still contained on the synthetic resin material is removed by contacting the particulate synthetic resin material with liquid carbon dioxide to dissolve the solvent into the carbon dioxide.

    摘要翻译: 从合成树脂材料中除去污染物的方法包括将含有至少一种污染物的颗粒状合成树脂材料与二氧化碳以外的溶剂接触。 至少一部分污染物从颗粒状合成树脂材料中除去并分散在溶剂中。 然后将分散有污染物的溶剂从颗粒状合成树脂材料中除去。 此后,通过使颗粒状合成树脂材料与液体二氧化碳接触来除去合成树脂材料中仍含有的至少一部分溶剂,以将溶剂溶解到二氧化碳中。

    EXTRACTION PROCESS UTILZING LIQUIFIED CARBON DIOXIDE
    8.
    发明申请
    EXTRACTION PROCESS UTILZING LIQUIFIED CARBON DIOXIDE 有权
    萃取工艺利用二氧化碳

    公开(公告)号:US20090178693A1

    公开(公告)日:2009-07-16

    申请号:US12342068

    申请日:2008-12-22

    IPC分类号: B08B7/00 B08B3/08

    摘要: A method for removing contaminants from synthetic resin material includes contacting a particulate synthetic resin material containing at least one contaminant with a solvent other than carbon dioxide. At least a portion of the contaminant is removed from the particulate synthetic resin material and becomes dispersed in the solvent. The solvent, with the contaminant dispersed therein, is then removed from the particulate synthetic resin material. Thereafter, at least a portion of the solvent still contained on the synthetic resin material is removed by contacting the particulate synthetic resin material with liquid carbon dioxide to dissolve the solvent into the carbon dioxide.

    摘要翻译: 从合成树脂材料中除去污染物的方法包括将含有至少一种污染物的颗粒状合成树脂材料与二氧化碳以外的溶剂接触。 至少一部分污染物从颗粒状合成树脂材料中除去并分散在溶剂中。 然后将分散有污染物的溶剂从颗粒状合成树脂材料中除去。 此后,通过使颗粒状合成树脂材料与液体二氧化碳接触来除去合成树脂材料中仍含有的至少一部分溶剂,以将溶剂溶解到二氧化碳中。