公开(公告)号：US07462649B2

公开(公告)日：2008-12-09

申请号：US10491783

申请日：2002-10-16

申请人： Takuo Nakao ,  Tetsuya Chikatsune ,  Minoru Nakashima ,  Minoru Suzuki ,  Hiroki Nagano

发明人： Takuo Nakao ,  Tetsuya Chikatsune ,  Minoru Nakashima ,  Minoru Suzuki ,  Hiroki Nagano

IPC分类号： C08J11/22 ,  C08J11/24

CPC分类号： C08J11/24 ,  C07C51/09 ,  C07C67/03 ,  C08G63/183 ,  C08G63/78 ,  C08G63/80 ,  C08G63/85 ,  C08J2367/02 ,  Y02W30/706 ,  C07C63/26 ,  C07C69/82

摘要： A through process comprising depolymerization reaction of used PET bottles with EG, recovering DMT by ester interchange reaction with MeOH, obtaining terephthalic acid by hydrolysis of the recovered DMT, and manufacturing a PET polymer which can be used for manufacturing PET bottles again by using the terephthalic acid.

摘要翻译： 一种通过方法，包括使用的PET瓶与EG的解聚反应，通过与MeOH的酯交换反应回收DMT，通过回收的DMT的水解获得对苯二甲酸，以及制备可用于通过使用对苯二甲酸 酸。

公开(公告)号：US20070299150A1

公开(公告)日：2007-12-27

申请号：US11882941

申请日：2007-08-07

申请人： Takuo Nakao ,  Tetsuya Chikatsune ,  Minoru Nakashima ,  Minoru Suzuki ,  Hiroki Nagano

发明人： Takuo Nakao ,  Tetsuya Chikatsune ,  Minoru Nakashima ,  Minoru Suzuki ,  Hiroki Nagano

IPC分类号： C08J11/04

CPC分类号： C08J11/24 ,  C07C51/09 ,  C07C67/03 ,  C08G63/183 ,  C08G63/78 ,  C08G63/80 ,  C08G63/85 ,  C08J2367/02 ,  Y02W30/706 ,  C07C63/26 ,  C07C69/82

摘要： A through process comprising depolymerization reaction of used PET bottles with EG, recovering DMT by ester interchange reaction with MeOH, obtaining terephthalic acid by hydrolysis of the recovered DMT, and manufacturing a PET polymer which can be used for manufacturing PET bottles again by using the terephthalic acid.

摘要翻译： 一种通过方法，包括使用的PET瓶与EG的解聚反应，通过与MeOH的酯交换反应回收DMT，通过回收的DMT的水解获得对苯二甲酸，以及制备可用于通过使用对苯二甲酸 酸。

公开(公告)号：US08420703B2

公开(公告)日：2013-04-16

申请号：US12527978

申请日：2008-02-19

申请人： Kouji Mukai ,  Minoru Nakashima

发明人： Kouji Mukai ,  Minoru Nakashima

IPC分类号： C08J11/04

CPC分类号： C08J11/24 ,  C08J2367/02 ,  Y02W30/706

摘要： The purpose of the present invention is to provide a method for collecting effective components from polyester fiber waste containing polyalkylene telephthalate as the main component, more specifically to provide a method for separating and removing foreign matters (mainly cotton) contained in polyester fiber waste. The purpose of the invention can be achieved by a method for separating and removing foreign matters from polyester waste, which includes throwing polyester fiber waste that contains polyalkylene telephthalate as the main component and foreign matters other than the polyalkylene telephthalate into a depolymerization reaction tank, subjecting a part or all of the polyester fiber to a depolymerization reaction with alkylene glycol to give a depolymerization reaction liquid, and then continuously or intermittently feeding the liquid to a foreign matter-separating and removing apparatus having specified characteristics.

摘要翻译： 本发明的目的是提供一种以聚对苯二甲酸亚烷基酯为主要成分的聚酯纤维废料收集有效成分的方法，更具体地说，提供了分离除去聚酯纤维废料中所含的异物（主要是棉花）的方法。 本发明的目的可以通过一种从聚酯废物中分离除去异物的方法来实现，该方法包括以聚邻苯二甲酸亚烷基酯为主要成分的聚酯纤维废料和聚对苯二甲酸亚烷基酯外的异物投入到解聚反应槽中， 将一部分或全部聚酯纤维与亚烷基二醇进行解聚反应，得到解聚反应液，然后将液体连续或间歇地送入具有特定特性的异物分离除去装置。

公开(公告)号：US08113354B2

公开(公告)日：2012-02-14

申请号：US12307200

申请日：2007-06-28

申请人： Kozo Toida ,  Kazumasa Mizuno ,  Minoru Nakashima ,  Hitoshi Nagasawa

发明人： Kozo Toida ,  Kazumasa Mizuno ,  Minoru Nakashima ,  Hitoshi Nagasawa

IPC分类号： B03B5/62

CPC分类号： B03B5/28 ,  B03B5/38 ,  B03B5/623 ,  B03B9/061 ,  B03B11/00 ,  B29B17/02 ,  B29B17/0412 ,  B29B2017/0203 ,  B29B2017/0244 ,  B29K2023/06 ,  B29K2067/00 ,  B29L2031/565 ,  B29L2031/7158 ,  Y02W30/521 ,  Y02W30/524 ,  Y02W30/622 ,  Y02W30/625

摘要： A problem of the invention is to provide a method which targets on polyethylene terephthalate-made bottle scraps composed mainly of polyethylene and/or polypropylene, polystyrene and a polyester and which is able to treat continuously a large amount of the polyester component with a high purity and sort and recover it in a high recovery. The problem of the invention can be solved by a separation method of waste plastics, which is characterized by forming previously a crushed plastic into a water slurry, feeding the water slurry in a fixed rate range such that a swirling flow is generated within a cylindrical tank and that water rises in a fixed rate range and recovering a polyester with a high specific gravity as a precipitated component within the cylindrical tank and a plastic with a low specific gravity as an overflow component from the top of the cylindrical tank, respectively.

摘要翻译： 本发明的一个问题是提供一种以聚对苯二甲酸乙二醇酯制成的主要由聚乙烯和/或聚丙烯，聚苯乙烯和聚酯组成的瓶废料的方法，其能够连续地以高纯度处理大量的聚酯组分 并在高回复期间进行分类和恢复。 本发明的问题可以通过废塑料的分离方法来解决，废旧塑料的分离方法的特征在于，先将破碎的塑料制成水浆，将水浆以固定的速率范围供给，使得在圆柱形罐内产生旋流 并且水以固定的速率范围升高，并且分别从圆柱形罐的顶部以圆柱形罐中的沉淀组分和具有低比重的塑料作为溢流部分回收高比重的聚酯。

公开(公告)号：US07959807B2

公开(公告)日：2011-06-14

申请号：US11996229

申请日：2006-07-31

申请人： Kouji Mukai ,  Minoru Nakashima

发明人： Kouji Mukai ,  Minoru Nakashima

IPC分类号： B01D11/02

CPC分类号： B01D11/0223 ,  B01D11/0288 ,  C07C67/03 ,  C08J11/24 ,  C08J2367/02 ,  C09B67/0096 ,  D06P5/137 ,  Y02W30/706 ,  C07C69/82

摘要： To establish an efficient and economical useful component recovery method capable of recovering high purity useful components from a dyed polyester fiber.A method for recovering useful components from a dyed polyester fiber, includes a dye extraction step, a solid liquid separation step, a depolymerization reaction step, an ester interchange reaction step, and a useful component separation step, for recovering useful components from the dyed polyester fiber, wherein the dye extraction step includes a step of extracting and removing a dye at the glass transition temperature of the polyester or higher and at 220° C. or less with a xylene extracting solvent and an alkylene glycol extracting solvent in combination.

摘要翻译： 建立一种能够从染色的聚酯纤维中回收高纯度有用组分的有效和经济的有用成分回收方法。 从染色的聚酯纤维中回收有用组分的方法包括染色提取步骤，固液分离步骤，解聚反应步骤，酯交换反应步骤和有用组分分离步骤，用于从染色的聚酯中回收有用组分 纤维，其中所述染料提取步骤包括在二甲苯提取溶剂和亚烷基二醇提取溶剂组合下在聚酯的玻璃化转变温度或更高和在220℃或更低的温度下提取和除去染料的步骤。

公开(公告)号：US20090133200A1

公开(公告)日：2009-05-28

申请号：US11996229

申请日：2006-07-31

申请人： Kouji Mukai ,  Minoru Nakashima

发明人： Kouji Mukai ,  Minoru Nakashima

IPC分类号： C09B67/54

CPC分类号： B01D11/0223 ,  B01D11/0288 ,  C07C67/03 ,  C08J11/24 ,  C08J2367/02 ,  C09B67/0096 ,  D06P5/137 ,  Y02W30/706 ,  C07C69/82

摘要： To establish an efficient and economical useful component recovery method capable of recovering high purity useful components from a dyed polyester fiber.A method for recovering useful components from a dyed polyester fiber, includes a dye extraction step, a solid liquid separation step, a depolymerization reaction step, an ester interchange reaction step, and a useful component separation step, for recovering useful components from the dyed polyester fiber, wherein the dye extraction step includes a step of extracting and removing a dye at the glass transition temperature of the polyester or higher and at 220° C. or less with a xylene extracting solvent and an alkylene glycol extracting solvent in combination.

摘要翻译： 建立一种能够从染色的聚酯纤维中回收高纯度有用组分的有效和经济的有用成分回收方法。 从染色的聚酯纤维中回收有用组分的方法包括染色提取步骤，固液分离步骤，解聚反应步骤，酯交换反应步骤和有用组分分离步骤，用于从染色的聚酯中回收有用组分 纤维，其中所述染料提取步骤包括在二甲苯提取溶剂和亚烷基二醇提取溶剂组合下在聚酯的玻璃化转变温度或更高和在220℃或更低的温度下提取和除去染料的步骤。

公开(公告)号：US20050004390A1

公开(公告)日：2005-01-06

申请号：US10491783

申请日：2002-10-16

申请人： Takuo Nakao ,  Tetsuya Chikatsune ,  Minoru Nakashima ,  Minoru Suzuki ,  Hiroki Nagano

发明人： Takuo Nakao ,  Tetsuya Chikatsune ,  Minoru Nakashima ,  Minoru Suzuki ,  Hiroki Nagano

IPC分类号： C07C51/09 ,  C07C67/03 ,  C08G63/183 ,  C08G63/78 ,  C08G63/80 ,  C08G63/85 ,  C08J11/24 ,  C07C69/76

CPC分类号： C08J11/24 ,  C07C51/09 ,  C07C67/03 ,  C08G63/183 ,  C08G63/78 ,  C08G63/80 ,  C08G63/85 ,  C08J2367/02 ,  Y02W30/706 ,  C07C63/26 ,  C07C69/82

摘要： A through process comprising depolymerization reaction of used PET bottles with EG, recovering DMT by ester interchange reaction with MeOH, obtaining terephthalic acid by hydrolysis of the recovered DMT, and manufacturing a PET polymer which can be used for manufacturing PET bottles again by using the terephthalic acid.

摘要翻译： 一种通过方法，包括使用的PET瓶与EG的解聚反应，通过与MeOH的酯交换反应回收DMT，通过回收的DMT的水解获得对苯二甲酸，以及制备可用于通过使用对苯二甲酸 酸。

公开(公告)号：US06706843B1

公开(公告)日：2004-03-16

申请号：US10111010

申请日：2002-04-19

申请人： Kenichi Ishihara ,  Kenji Ishida ,  Masanori Miyamoto ,  Minoru Nakashima ,  Kazuhiro Sato ,  Hideo Hasegawa

发明人： Kenichi Ishihara ,  Kenji Ishida ,  Masanori Miyamoto ,  Minoru Nakashima ,  Kazuhiro Sato ,  Hideo Hasegawa

IPC分类号： C08J1104

CPC分类号： C07C67/03 ,  C07C29/1285 ,  C08G63/183 ,  C08J11/24 ,  C08J2367/02 ,  C09D167/08 ,  Y02W30/706 ,  C07C69/82 ,  C08L2666/02 ,  C07C31/202

摘要： For separation and recovery of dimethyl terephthalate (DMT) and ethyiene glycol (EG) from polyester waste containing foreign materials, the polyester waste is treated in EG containing a polyester depolymerization catalyst, a solid foreign material fraction floated on the surface of the resultant reaction solution is removed and the residual solid foreign material fraction is removed from the remaining solution fraction. The remaining solution fraction is distilled and concentrated and the distilled EG is recovered. A transesterification reaction catalyst and methanol are mixed into the distillation residue. The resultant reaction mixture is recrystallized and subjected to centrifugal separation to separate the reaction mixture into the DMT cake and a mixture solution, and then the cake is distilled whereby high-purity DMT is recovered. The residual mixture solution is subjected to distillation treatment for recovery of the methanol, and the distillation residue is distilled to recover EG.

摘要翻译： 为了从含有异物的聚酯废物中分离和回收对苯二甲酸二甲酯（DMT）和乙二醇（EG），聚酯废物在含有聚酯解聚催化剂的EG中处理，固体异物部分漂浮在所得反应溶液的表面 并从剩余的溶液馏分中除去残留的固体异物馏分。 将剩余的溶液馏分蒸馏并浓缩并回收蒸馏的EG。 将酯交换反应催化剂和甲醇混合到蒸馏残余物中。 将所得反应混合物重结晶并进行离心分离，将反应混合物分离成DMT滤饼和混合溶液，然后将滤饼蒸馏，从而回收高纯度DMT。 将残留的混合溶液进行蒸馏处理以回收甲醇，并蒸馏残余物以回收EG。

公开(公告)号：US20100298524A1

公开(公告)日：2010-11-25

申请号：US12445867

申请日：2007-11-06

申请人： Kozo Toida ,  Minoru Nakashima

发明人： Kozo Toida ,  Minoru Nakashima

IPC分类号： C08G63/127

CPC分类号： C07C51/09 ,  C08G63/183 ,  C07C63/26

摘要： A liquid mixture of terephthalic acid with an alkylene glycol suitable as a starting material mixture for a polyester polycondensation reaction is produced by preparing a liquid mixture of terephthalic acid particles prepared by the hydrolysis of a dialkyl terephthalate with at least one type of alkylene glycol and having a temperature of 100 to 130° C., and then stirring the liquid mixture for 15 minutes to 3 hours while the temperature of the liquid mixture is maintained in the above-mentioned range, to control the slurry properties of the liquid mixture.

摘要翻译： 通过制备通过将对苯二甲酸二烷基酯与至少一种类型的亚烷基二醇水解制备的对苯二甲酸颗粒的液体混合物制备对苯二甲酸与适合作为聚酯缩聚反应原料混合物的亚烷基二醇的液体混合物， 温度为100〜130℃，然后在液体混合物的温度保持在上述范围内的同时将液体混合物搅拌15分钟至3小时，以控制液体混合物的浆料性质。

公开(公告)号：US20100032618A1

公开(公告)日：2010-02-11

申请号：US12527978

申请日：2008-02-19

申请人： Kouji Mukai ,  Minoru Nakashima

发明人： Kouji Mukai ,  Minoru Nakashima

IPC分类号： C09K3/00

CPC分类号： C08J11/24 ,  C08J2367/02 ,  Y02W30/706

摘要： The purpose of the present invention is to provide a method for collecting effective components from polyester fiber waste containing polyalkylene telephthalate as the main component, more specifically to provide a method for separating and removing foreign matters (mainly cotton) contained in polyester fiber waste. The purpose of the invention can be achieved by a method for separating and removing foreign matters from polyester waste, which includes throwing polyester fiber waste that contains polyalkylene telephthalate as the main component and foreign matters other than the polyalkylene telephthalate into a depolymerization reaction tank, subjecting a part or all of the polyester fiber to a depolymerization reaction with alkylene glycol to give a depolymerization reaction liquid, and then continuously or intermittently feeding the liquid to a foreign matter-separating and removing apparatus having specified characteristics.

摘要翻译： 本发明的目的是提供一种以聚对苯二甲酸亚烷基酯为主要成分的聚酯纤维废料收集有效成分的方法，更具体地说，提供了分离除去聚酯纤维废料中所含的异物（主要是棉花）的方法。 本发明的目的可以通过一种从聚酯废物中分离除去异物的方法来实现，该方法包括以聚邻苯二甲酸亚烷基酯为主要成分的聚酯纤维废料和聚对苯二甲酸亚烷基酯外的异物投入到解聚反应槽中， 将一部分或全部聚酯纤维与亚烷基二醇进行解聚反应，得到解聚反应液，然后将液体连续或间歇地送入具有特定特性的异物分离除去装置。