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公开(公告)号：US11839996B2
公开(公告)日：2023-12-12
申请号：US17168223
申请日：2021-02-05
Applicant: POLYMETRIX AG
Inventor： Andreas Christel , Karl Schöpf
IPC: B01J8/18 , B01D53/86 , B01D53/02 , B29B9/10 , B29K67/00 , B29K105/00 , B29K105/26
CPC classification number: B29B9/10 , B01D53/02 , B01D53/8696 , B01J8/1809 , B01J8/1818 , B01J8/1836 , B01J2208/00132 , B29K2067/00 , B29K2105/253 , B29K2105/26
Abstract: A method for processing a mixture of recycled polyester material and a polyester prepolymer from a polyester manufacturing process, wherein a recycled polyester material is mixed with a polyester prepolymer, from a polyester manufacturing process, and treated in a bulk thermal treatment reactor (7) with a process gas which flows in a counter-current or a cross-current flow direction to the flow direction of the mixture. In this process, the process gas, before entering a catalyst vessel (14), is passed through a protective bed (11) containing a solid adsorbent material that removes high-boiling organic substances or organic substances, with a high combustion temperature, from the process gas stream.
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公开(公告)号：US20200317862A1
公开(公告)日：2020-10-08
申请号：US16909085
申请日：2020-06-23
Applicant: POLYMETRIX AG
Inventor： Andreas CHRISTEL , Brent Allan CULBERT
Abstract: The present invention relates to a process for continuous production of partly crystalline polycondensate pellet material, comprising the steps of forming a polycondensate melt into pellet material; separating the liquid cooling medium from the pellet material in a first treatment space, wherein the pellets after exit from the first treatment space exhibit a temperature TGR, and crystallizing the pellet material in a second treatment space, wherein in the second treatment space fluidized bed conditions exist, and in the second treatment space the pellets are heated by supply of energy from the exterior by means of a process gas.
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公开(公告)号：US20250034392A1
公开(公告)日：2025-01-30
申请号：US18709302
申请日：2022-11-08
Applicant: POLYMETRIX AG
Inventor： Andreas CHRISTEL , Karl SCHÖPF
Abstract: A process for producing a polyester solids mixture by adding together a proportion of recycled polyester material and a proportion of polyester material from a polyester manufacturing process. The proportion of recycled polyester material in the polyester solids mixture comprises 10-90% and has a b* value (BR), and the proportion of polyester material from a polyester manufacturing process in the polyester solids mixture comprises 90-10% and has a b* value (BN) and the resulting polyester solids mixture has a b* value (BM), wherein the BM BN.
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公开(公告)号：US11566104B2
公开(公告)日：2023-01-31
申请号：US16909076
申请日：2020-06-23
Applicant: POLYMETRIX AG
Inventor： Andreas Christel , Brent Allan Culbert
IPC: B29C71/00 , C08G63/88 , B29B9/06 , B29B9/16 , F26B17/00 , B01J2/06 , C08J3/12 , B29K67/00 , B29B9/12
Abstract: The present invention relates to a process for continuous production of partly crystalline polycondensate pellet material, comprising the steps of forming a polycondensate melt into pellet material; separating the liquid cooling medium from the pellet material in a first treatment space, wherein the pellets after exit from the first treatment space exhibit a temperature TGR, and crystallizing the pellet material in a second treatment space, wherein in the second treatment space fluidized bed conditions exist, and in the second treatment space the pellets are heated by supply of energy from the exterior by means of a process gas.
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公开(公告)号：US20210245399A1
公开(公告)日：2021-08-12
申请号：US17168223
申请日：2021-02-05
Applicant: POLYMETRIX AG
Inventor： Andreas CHRISTEL , Karl SCHÖPF
Abstract: A method for processing a mixture of recycled polyester material and a polyester prepolymer from a polyester manufacturing process, wherein a recycled polyester material is mixed with a polyester prepolymer, from a polyester manufacturing process, and treated in a bulk thermal treatment reactor (7) with a process gas which flows in a counter-current or a cross-current flow direction to the flow direction of the mixture. In this process, the process gas, before entering a catalyst vessel (14), is passed through a protective bed (11) containing a solid adsorbent material that removes high-boiling organic substances or organic substances, with a high combustion temperature, from the process gas stream.
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Patent Agency Ranking
公开(公告)号：US20200148838A1
公开(公告)日：2020-05-14
申请号：US16663508
申请日：2019-10-25
Applicant: POLYMETRIX AG
Inventor： Andreas CHRISTEL , Martin MÜLLER
Abstract: A process for continuous production of partly crystalline polycondensate pellet material which comprises the step of crystallizing the pellet material in a second treatment space (6a) under fixed bed conditions by supply of energy from the exterior by means of a process gas, wherein the process gas has a temperature (TGas), which is higher than the sum of the pellet temperature (TGR) and the temperature increase (TKR) which occurs due to heat of crystallization released hi the second treatment space (6a), i.e., (TGas>(TGR+TKR)). The pellets at the exit from the second treatment space (6a) have an average temperature (TPH), which is 10 to 90° C. higher than the sum of the temperature of the pellets (TGR) and the temperature increase (TKR) which occurs due to heat of crystallization released in the second treatment space (6a), i.e., (TGR+TKR+90° C.)≥TPH≥(TGR+TKR+10°).
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公开(公告)号：US11286365B2
公开(公告)日：2022-03-29
申请号：US16803227
申请日：2020-02-27
Applicant: POLYMETRIX AG
Inventor： Andreas Christel
IPC: C08J11/06
Abstract: A process for recycling polyolefins comprising the steps of extruding used polyolefin material, producing granules from the polyolefin material exiting from the extrusion into a liquid cooling medium, separating the cooling medium to obtain a dry polyolefin granulate, and treating the dry polyolefin granulate in a treatment space with a treatment gas, preferably by counter-current flow, immediately after separation of the cooling medium, the dry polyolefin granules still have a granule temperature (T2) which is above a temperature (T1) of the liquid cooling medium and in the range of 71° C.-200° C., preferably 80° C.-160° C., but below the melting point of the granules, and at least 75% of the dry polyolefin granules, in the treatment space, have a dry temperature (T3) which is in the range of granule temperature (T2)±20° C., but below the melting point of the granules.
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公开(公告)号：US20200347182A1
公开(公告)日：2020-11-05
申请号：US16909076
申请日：2020-06-23
Applicant: POLYMETRIX AG
Inventor： Andreas CHRISTEL , Brent Allan CULBERT
Abstract: The present invention relates to a process for continuous production of partly crystalline polycondensate pellet material, comprising the steps of forming a polycondensate melt into pellet material; separating the liquid cooling medium from the pellet material in a first treatment space, wherein the pellets after exit from the first treatment space exhibit a temperature TGR, and crystallizing the pellet material in a second treatment space, wherein in the second treatment space fluidized bed conditions exist, and in the second treatment space the pellets are heated by supply of energy from the exterior by means of a process gas.
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公开(公告)号：US20200291200A1
公开(公告)日：2020-09-17
申请号：US16803227
申请日：2020-02-27
Applicant: POLYMETRIX AG
Inventor： Andreas CHRISTEL
IPC: C08J11/06
Abstract: A process for recycling polyolefins comprising the steps of extruding used polyolefin material, producing granules from the polyolefin material exiting from the extrusion into a liquid cooling medium, separating the cooling medium to obtain a dry polyolefin granulate, and treating the dry polyolefin granulate in a treatment space with a treatment gas, preferably by counter-current flow, immediately after separation of the cooling medium, the dry polyolefin granules still have a granule temperature (T2) which is above a temperature (T1) of the liquid cooling medium and in the range of 71° C.-20020 C., preferably 80° C.-160° C., but below the melting point of the granules, and at least 75% of the dry polyolefin granules, in the treatment space, have a dry temperature (T3) which is in the range of granule temperature (T2)±20° C., but below the melting point of the granules.
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公开(公告)号：US10745517B2
公开(公告)日：2020-08-18
申请号：US15435817
申请日：2017-02-17
Applicant: POLYMETRIX AG
Inventor： Andreas Christel , Brent Allan Culbert
IPC: B29C71/02 , C08G63/88 , B29B9/06 , B29C71/00 , B29B9/16 , F26B17/00 , B01J2/06 , C08J3/12 , B29K67/00 , B29B9/12
Abstract: The present invention relates to a process for continuous production of partly crystalline polycondensate pellet material, comprising the steps of forming a polycondensate melt into pellet material; separating the liquid cooling medium from the pellet material in a first treatment space, wherein the pellets after exit from the first treatment space exhibit a temperature TGR, and crystallizing the pellet material in a second treatment space, wherein in the second treatment space fluidized bed conditions exist, and in the second treatment space the pellets are heated by supply of energy from the exterior by means of a process gas.
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