CN117940485A - ε-己内酰胺和聚酰胺6低聚物的回收方法及聚酰胺6的制造方法 - Google Patents

ε-己内酰胺和聚酰胺6低聚物的回收方法及聚酰胺6的制造方法 Download PDF

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Publication number
CN117940485A
CN117940485A CN202280062228.6A CN202280062228A CN117940485A CN 117940485 A CN117940485 A CN 117940485A CN 202280062228 A CN202280062228 A CN 202280062228A CN 117940485 A CN117940485 A CN 117940485A
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CN
China
Prior art keywords
polyamide
caprolactam
oligomer
water
epsilon
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202280062228.6A
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English (en)
Chinese (zh)
Inventor
山下浩平
高桥昌佑
加藤昌史
西村美帆子
加藤公哉
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Toray Industries Inc
Original Assignee
Toray Industries Inc
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Filing date
Publication date
Application filed by Toray Industries Inc filed Critical Toray Industries Inc
Publication of CN117940485A publication Critical patent/CN117940485A/zh
Pending legal-status Critical Current

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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J11/00—Recovery or working-up of waste materials
    • C08J11/04—Recovery or working-up of waste materials of polymers
    • C08J11/10—Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation
    • C08J11/14—Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation by treatment with steam or water
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D223/00—Heterocyclic compounds containing seven-membered rings having one nitrogen atom as the only ring hetero atom
    • C07D223/02—Heterocyclic compounds containing seven-membered rings having one nitrogen atom as the only ring hetero atom not condensed with other rings
    • C07D223/06—Heterocyclic compounds containing seven-membered rings having one nitrogen atom as the only ring hetero atom not condensed with other rings with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
    • C07D223/08—Oxygen atoms
    • C07D223/10—Oxygen atoms attached in position 2
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D201/00—Preparation, separation, purification or stabilisation of unsubstituted lactams
    • C07D201/02—Preparation of lactams
    • C07D201/12—Preparation of lactams by depolymerising polyamides
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D201/00—Preparation, separation, purification or stabilisation of unsubstituted lactams
    • C07D201/16—Separation or purification
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G69/00—Macromolecular compounds obtained by reactions forming a carboxylic amide link in the main chain of the macromolecule
    • C08G69/02—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids
    • C08G69/04—Preparatory processes
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J11/00—Recovery or working-up of waste materials
    • C08J11/04—Recovery or working-up of waste materials of polymers
    • C08J11/10—Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation
    • C08J11/18—Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation by treatment with organic material
    • C08J11/28—Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation by treatment with organic material by treatment with organic compounds containing nitrogen, sulfur or phosphorus
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G69/00—Macromolecular compounds obtained by reactions forming a carboxylic amide link in the main chain of the macromolecule
    • C08G69/02—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids
    • C08G69/08—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids derived from amino-carboxylic acids
    • C08G69/14—Lactams
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G69/00—Macromolecular compounds obtained by reactions forming a carboxylic amide link in the main chain of the macromolecule
    • C08G69/46—Post-polymerisation treatment
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2377/00—Characterised by the use of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Derivatives of such polymers
    • C08J2377/02—Polyamides derived from omega-amino carboxylic acids or from lactams thereof
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/62—Plastics recycling; Rubber recycling

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Polyamides (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
CN202280062228.6A 2021-10-29 2022-10-17 ε-己内酰胺和聚酰胺6低聚物的回收方法及聚酰胺6的制造方法 Pending CN117940485A (zh)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2021178292 2021-10-29
JP2021-178292 2021-10-29
PCT/JP2022/038586 WO2023074437A1 (ja) 2021-10-29 2022-10-17 ε－カプロラクタムおよびポリアミド６オリゴマーの回収方法、ならびにポリアミド６の製造方法

Publications (1)

Publication Number Publication Date
CN117940485A true CN117940485A (zh) 2024-04-26

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202280062228.6A Pending CN117940485A (zh) 2021-10-29 2022-10-17 ε-己内酰胺和聚酰胺6低聚物的回收方法及聚酰胺6的制造方法

Country Status (7)

Country Link
US (1) US20250257037A1 (https=)
EP (1) EP4424748A4 (https=)
JP (1) JPWO2023074437A1 (https=)
KR (1) KR20240100346A (https=)
CN (1) CN117940485A (https=)
TW (1) TW202336112A (https=)
WO (1) WO2023074437A1 (https=)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN119613281A (zh) * 2024-12-06 2025-03-14 东华大学 一种含酰胺基聚合物的解聚再生方法

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2024286546A1 (en) * 2023-06-06 2025-12-18 Basf Se Process for hydrolytically depolymerizing a polyamide
WO2025234419A1 (ja) * 2024-05-08 2025-11-13 国立大学法人大阪大学 ポリアミド化合物の解重合用触媒及びそれを用いたポリアミド化合物の解重合方法

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4624035B1 (https=) * 1967-03-10 1971-07-09
DE4407222A1 (de) * 1994-03-04 1995-09-07 Basf Ag Verfahren zur Rückgewinnung von Caprolactam aus Oliogo- und/oder Polymeren des Caprolactams
US5495015A (en) 1994-12-12 1996-02-27 Basf Aktiengesellschaft Process for producing caprolactam through hydrolytic cleavage of molten polycaprolactam
US5455346B1 (en) 1994-12-12 1999-02-09 Basf Corp Obtaining caprolactam by cleavage of molten polycaprolactam
JPH08217746A (ja) 1995-02-09 1996-08-27 Toray Ind Inc ε−カプロラクタムの精製法
JPH10287645A (ja) * 1997-04-11 1998-10-27 Unitika Ltd 回収ε−カプロラクタム及びその精製法
NL1006575C2 (nl) * 1997-07-14 1999-01-15 Dsm Nv Depolymeriseren van polyamiden.
JP2000034363A (ja) * 1998-07-21 2000-02-02 Toray Ind Inc ナイロン６製品類のリサイクル方法
JP4182273B2 (ja) * 2000-06-27 2008-11-19 住友化学株式会社 ε−カプロラクタムの製造方法
JP2011088943A (ja) * 2009-10-20 2011-05-06 Toray Ind Inc ナイロン６製品のリサイクル方法
CN102352034B (zh) * 2011-07-22 2013-01-30 浙江华建尼龙有限公司 一种除去聚已内酰胺中环状低聚物的机械方法
WO2018055555A1 (en) 2016-09-22 2018-03-29 Sabic Global Technologies, B.V. An integrated process configuration involving the steps of pyrolysis, hydrocracking, hydrodealkylation and steam cracking

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN119613281A (zh) * 2024-12-06 2025-03-14 东华大学 一种含酰胺基聚合物的解聚再生方法

Also Published As

Publication number Publication date
TW202336112A (zh) 2023-09-16
EP4424748A4 (en) 2026-02-11
EP4424748A8 (en) 2024-12-25
WO2023074437A1 (ja) 2023-05-04
US20250257037A1 (en) 2025-08-14
EP4424748A1 (en) 2024-09-04
JPWO2023074437A1 (https=) 2023-05-04
KR20240100346A (ko) 2024-07-01

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