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    • 39. 发明申请
    • Method and Device for Cleaning an Absorptive Polyester
    • 用于清洗吸收性聚酯的方法和装置
    • US20100137550A1
    • 2010-06-03
    • US12598480
    • 2008-05-02
    • Anja EnderleManfred Schmitt
    • Anja EnderleManfred Schmitt
    • C08G63/90B01D11/00
    • C08G63/90C08G63/08
    • In a method for cleaning an absorptive polyester, the polymer is dissolved in a first solvent (12) and subsequently the polymer solution is brought into tight contact with a second solvent (41) in a turbulent shear field under the influence of strong shear forces. Here, the second solvent (41) represents a non-solvent for the absorptive polyester and is mixable with the first solvent (12) to an unlimited extent. Subsequently, the polymer suspension resulting from the addition of the second solvent (41) is conveyed onto or into a rotating, cylindrical screen body (71) of a drum shear screen (70) and then the moist polymer mass is removed from the screen body (71) and subsequently dried. The method is suitable for the production of absorptive polyester with a high degree of quality and may be performed in a cost-effective fashion on an industrial scale as well.
    • 在清洗吸收性聚酯的方法中,将聚合物溶解在第一溶剂(12)中,随后在强剪切力的影响下,在湍流剪切场中使聚合物溶液与第二溶剂(41)紧密接触。 这里,第二溶剂(41)表示用于吸收性聚酯的非溶剂,并且与第一溶剂(12)混合无限制。 随后,将由第二溶剂(41)加入产生的聚合物悬浮液输送到滚筒筛网(70)的旋转的圆柱形筛网(71)上,然后将湿的聚合物物质从筛体 (71),随后干燥。 该方法适用于生产具有高质量的吸收性聚酯,并且可以在工业规模上以成本有效的方式进行。