Process for the removal of foreign materials from a post-consumer
plyethylene terephthalate feed stream
    3.
    发明授权
    Process for the removal of foreign materials from a post-consumer plyethylene terephthalate feed stream 失效
    用于从消费后的对苯二甲酸乙二醇酯进料流中除去异物的方法

    公开(公告)号:US5223544A

    公开(公告)日:1993-06-29

    申请号:US860963

    申请日:1992-03-31

    摘要: In today's environment, it is becoming increasingly more important to recycle plastics including polyethylene terephthalate. Technology available today allows for polyethylene terephthalate to be recycled into a wide variety of useful products. For instance, carbonated beverage bottles which are comprised of polyethylene terephthalate can be recycled into new polyethylene terephthalate beverage bottles. However, a relatively pure polyethylene terephthalate post consumer feed stream is required in many such recycling programs. Unfortunately, such feed streams are often contaminated with foreign material. This invention relates to a process for removing foreign materials from a post-consumer polyethylene terephthalate feed stream which comprises: (1) depolymerizing the polyethylene terephthalate feed stream into a melt having a melt viscosity which is within the range of 0.001 poise to 1000 poise, (2) feeding the melt into a separation device, (3) allowing low density foreign materials to float to the surface of the melt, (4) allowing high density foreign materials to sink to the bottom of the melt, and (5) removing molten polyethylene terephthalate oligomer from an area which is located intermediately between the surface of the melt and the bottom of the melt.

    摘要翻译: 在当今的环境下,回收包括聚对苯二甲酸乙二醇酯在内的塑料变得越来越重要。 今天提供的技术可以将聚对苯二甲酸乙二醇酯再循环到各种有用的产品中。 例如,由聚对苯二甲酸乙二酯组成的碳酸饮料瓶可以再循环到新的聚对苯二甲酸乙二醇酯饮料瓶中。 然而,在许多这样的回收程序中需要相对纯的聚对苯二甲酸乙二醇酯后消费进料流。 不幸的是,这种进料流通常被外来物质污染。 本发明涉及从消费后聚对苯二甲酸乙二醇酯进料流中除去异物的方法,该方法包括:(1)将聚对苯二甲酸乙二醇酯进料流解聚成熔体粘度在0.001泊至1000泊范围内的熔体中, (2)将熔体输送到分离装置中,(3)允许低密度异物漂浮到熔体的表面,(4)允许高密度异物沉入熔体的底部,和(5)去除 熔融的聚对苯二甲酸乙二醇酯低聚物位于熔融物表面之间的区域和熔体的底部之间。

    Apparatus and method for separating materials of various type

    公开(公告)号:US09776343B2

    公开(公告)日:2017-10-03

    申请号:US15031566

    申请日:2014-11-20

    发明人: Flavio Previero

    IPC分类号: B29B17/02 C08J11/06 B29K67/00

    摘要: A method for separating materials of various type having different softening temperature values, includes pouring a mixture of flakes and fragments of materials on a movable receiving and conveying device in a uniformly distributed manner and advancing it along a first portion of path; actuating an electromagnetic inductor to heat an outer metal surface by electromagnetic induction, which surface is included in the movable receiving and conveying device to achieve a first lower softening temperature corresponding to a first material of the mixture; subjecting the mixture to a separating action during which a first fraction, remains stuck to the outer metal surface, whereas a remaining second fraction of materials having higher softening temperatures than the first softening temperature freely slips by gravity towards a lower receiving zone.

    Plastic bottle processing apparatus and vehicle having same mounted thereon
    5.
    发明授权
    Plastic bottle processing apparatus and vehicle having same mounted thereon 有权
    具有安装在其上的塑料瓶处理装置和车辆

    公开(公告)号:US09352366B2

    公开(公告)日:2016-05-31

    申请号:US14538935

    申请日:2014-11-12

    申请人: Susumu Yamada

    发明人: Susumu Yamada

    摘要: A plastic bottle processing apparatus includes: an apparatus body having a conveying path section in which a plastic bottle is conveyed; and a label separating unit arranged in a middle of the conveying path section so as to separate a label from the plastic bottle. The label separating unit includes: a label cutting member that cuts the label of the plastic bottle, which is conveyed in the conveying path section along the axial direction of the plastic bottle; a heating member that heats the label cut by the label cutting member; and a brush member disposed so as to be able to make contact with the label heated by the heating member and remove the label from the plastic bottle body by making contact with the label.

    摘要翻译: 一种塑料瓶加工设备,包括:具有输送路径部分的装置主体,塑料瓶被输送到该输送路段中; 以及标签分离单元,布置在输送路径部分的中间,以将标签与塑料瓶分开。 标签分离单元包括:标签切割构件,其切割沿着塑料瓶的轴向方向在输送路径部分中输送的塑料瓶的标签; 加热构件,其加热由所述标签切割构件切割的所述标签; 以及刷构件,其设置成能够与由加热构件加热的标签接触,并通过与标签接触从塑料瓶主体移除标签。

    METHOD AND DEVICE FOR SEPARATING FOREIGN POLYMERS FROM A POLYMER MIXTURE
    6.
    发明申请
    METHOD AND DEVICE FOR SEPARATING FOREIGN POLYMERS FROM A POLYMER MIXTURE 有权
    用于从聚合物混合物分离外来聚合物的方法和装置

    公开(公告)号:US20120157557A1

    公开(公告)日:2012-06-21

    申请号:US13330842

    申请日:2011-12-20

    IPC分类号: C08J11/06 F27B14/00

    摘要: A method of separating foreign polymers from a polymer mixture that comprises amorphous PET particles and crystalline PET particles, wherein the softening point of the foreign polymers is lower than that of the crystalline PET particles, and wherein the method includes separating the amorphous PET particles from the polymer mixture, heating the resulting polymer mixture to a temperature between the softening point of the foreign polymers and that of the crystalline PET particles, and separating the foreign polymers from the resulting polymer mixture. Also, a device for separating foreign polymers from a polymer mixture that comprises amorphous PET particles and crystalline PET particles, the device including a first separation unit for separating the amorphous PET particles from the polymer mixture, and a second separation unit for separating the foreign polymers from the resulting polymer mixture.

    摘要翻译: 从包含无定形PET颗粒和结晶PET颗粒的聚合物混合物中分离外来聚合物的方法,其中外来聚合物的软化点低于结晶PET颗粒的软化点,并且其中所述方法包括将无定形PET颗粒从 聚合物混合物,将得到的聚合物混合物加热至外来聚合物的软化点和结晶PET颗粒的软化点之间的温度,并将外来聚合物与所得聚合物混合物分离。 另外,一种用于从含有非晶PET颗粒和结晶PET颗粒的聚合物混合物中分离外来聚合物的装置,该装置包括用于从聚合物混合物中分离无定形PET颗粒的第一分离单元和用于分离外来聚合物的第二分离单元 从得到的聚合物混合物中。

    Method and device for separating foreign polymers from a polymer mixture
    8.
    发明授权
    Method and device for separating foreign polymers from a polymer mixture 有权
    从聚合物混合物中分离外来聚合物的方法和装置

    公开(公告)号:US09061443B2

    公开(公告)日:2015-06-23

    申请号:US13330842

    申请日:2011-12-20

    摘要: A method of separating foreign polymers from a polymer mixture that comprises amorphous PET particles and crystalline PET particles, wherein the softening point of the foreign polymers is lower than that of the crystalline PET particles, and wherein the method includes separating the amorphous PET particles from the polymer mixture, heating the resulting polymer mixture to a temperature between the softening point of the foreign polymers and that of the crystalline PET particles, and separating the foreign polymers from the resulting polymer mixture. Also, a device for separating foreign polymers from a polymer mixture that comprises amorphous PET particles and crystalline PET particles, the device including a first separation unit for separating the amorphous PET particles from the polymer mixture, and a second separation unit for separating the foreign polymers from the resulting polymer mixture.

    摘要翻译: 从包含无定形PET颗粒和结晶PET颗粒的聚合物混合物中分离外来聚合物的方法,其中外来聚合物的软化点低于结晶PET颗粒的软化点,并且其中所述方法包括将无定形PET颗粒从 聚合物混合物,将得到的聚合物混合物加热至外来聚合物的软化点和结晶PET颗粒的软化点之间的温度,并将外来聚合物与所得聚合物混合物分离。 另外,用于将外来聚合物与包含无定形PET颗粒和结晶PET颗粒的聚合物混合物分离的装置,该装置包括用于从聚合物混合物中分离无定形PET颗粒的第一分离单元和用于分离外来聚合物的第二分离单元 从得到的聚合物混合物中。

    SEPARATION OF COMPONENTS OF PLASTIC
    9.
    发明申请
    SEPARATION OF COMPONENTS OF PLASTIC 有权
    塑料成分的分离

    公开(公告)号:US20130231407A1

    公开(公告)日:2013-09-05

    申请号:US13774130

    申请日:2013-02-22

    申请人: NEXTEK LIMITED

    发明人: Edward Kosior

    IPC分类号: C08J11/06

    摘要: The present invention relates to a process for separating two or more components of a plastic material for the purposes of recycling, with particular application to purifying poly(ethylene terephthalate) (PET) during recycling procedures. The process comprises contacting a quantity of the plastic material with one or more discrete pre-heated particles.

    摘要翻译: 本发明涉及一种用于分离塑料材料的两种或多种组分以便再循环的方法,特别是用于在再循环过程中纯化聚对苯二甲酸乙二醇酯(PET)。 该方法包括将一定数量的塑料材料与一种或多种离散的预加热颗粒接触。