EP4743511A1 - METHOD FOR RECYCLING POLYURETHANE FOAM - Google Patents

METHOD FOR RECYCLING POLYURETHANE FOAM

Info

Publication number
EP4743511A1
EP4743511A1 EP24743741.1A EP24743741A EP4743511A1 EP 4743511 A1 EP4743511 A1 EP 4743511A1 EP 24743741 A EP24743741 A EP 24743741A EP 4743511 A1 EP4743511 A1 EP 4743511A1
Authority
EP
European Patent Office
Prior art keywords
polyurethane foam
recycling polyurethane
recycling
foam
polyurethane
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
EP24743741.1A
Other languages
German (de)
French (fr)
Inventor
Achim Stammer
Jens Ferbitz
Oliver Pikhard
Andreas Thomas Haedler
Patrick Weiss
Katharina Jeschonek
Anant Vikas Aggarwal
Nicolas Stefan Schork
Markus Herbig
Martinez Iran Otero
Clara Lauscher
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BASF SE
Original Assignee
BASF SE
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by BASF SE filed Critical BASF SE
Publication of EP4743511A1 publication Critical patent/EP4743511A1/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
    • B29B17/02—Separating plastics from other materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
    • B29B17/04—Disintegrating plastics, e.g. by milling
    • 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
    • C08J11/22—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 oxygen-containing compounds
    • C08J11/24—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 oxygen-containing compounds containing hydroxyl groups
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
    • B29B17/02—Separating plastics from other materials
    • B29B2017/0213—Specific separating techniques
    • B29B2017/0217—Mechanical separating techniques; devices therefor
    • B29B2017/0224—Screens, sieves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
    • B29B17/02—Separating plastics from other materials
    • B29B2017/0213—Specific separating techniques
    • B29B2017/0217—Mechanical separating techniques; devices therefor
    • B29B2017/0231—Centrifugating, cyclones
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
    • B29B17/02—Separating plastics from other materials
    • B29B2017/0213—Specific separating techniques
    • B29B2017/0217—Mechanical separating techniques; devices therefor
    • B29B2017/0234—Mechanical separating techniques; devices therefor using gravity, e.g. separating by weight differences in a wind sifter
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
    • B29B17/02—Separating plastics from other materials
    • B29B2017/0213—Specific separating techniques
    • B29B2017/0217—Mechanical separating techniques; devices therefor
    • B29B2017/0237—Mechanical separating techniques; devices therefor using density difference
    • B29B2017/0241—Mechanical separating techniques; devices therefor using density difference in gas, e.g. air flow
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
    • B29B17/02—Separating plastics from other materials
    • B29B2017/0213—Specific separating techniques
    • B29B2017/0217—Mechanical separating techniques; devices therefor
    • B29B2017/0237—Mechanical separating techniques; devices therefor using density difference
    • B29B2017/0244—Mechanical separating techniques; devices therefor using density difference in liquids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
    • B29B17/02—Separating plastics from other materials
    • B29B2017/0213—Specific separating techniques
    • B29B2017/0279—Optical identification, e.g. cameras or spectroscopy
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2075/00—Use of PU, i.e. polyureas or polyurethanes or derivatives thereof, as moulding material
    • 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
    • C08G2101/00—Manufacture of cellular products
    • 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
    • C08J2375/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
    • C08J2375/04—Polyurethanes
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Polyurethanes Or Polyureas (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
EP24743741.1A 2023-07-14 2024-07-11 METHOD FOR RECYCLING POLYURETHANE FOAM Pending EP4743511A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP23185549 2023-07-14
PCT/EP2024/069663 WO2025016860A1 (en) 2023-07-14 2024-07-11 Process for recycling polyurethane foams

Publications (1)

Publication Number Publication Date
EP4743511A1 true EP4743511A1 (en) 2026-05-20

Family

ID=87340633

Family Applications (1)

Application Number Title Priority Date Filing Date
EP24743741.1A Pending EP4743511A1 (en) 2023-07-14 2024-07-11 METHOD FOR RECYCLING POLYURETHANE FOAM

Country Status (4)

Country Link
EP (1) EP4743511A1 (en)
KR (1) KR20260040604A (en)
CN (1) CN121487991A (en)
WO (1) WO2025016860A1 (en)

Family Cites Families (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2854940A1 (en) 1978-12-20 1980-07-10 Bayer Ag METHOD FOR SEPARATING POLYURETHANE FOAM HYDROLYSATES IN POLYOL AND DIAMINE
AU551979B2 (en) 1982-03-31 1986-05-15 Shell Internationale Research Maatschappij B.V. Epoxy polymerisation catalysts
DE3714439A1 (en) 1987-04-30 1988-11-10 Bayer Ag METHOD FOR PRODUCING (CYCLO) ALIPHATIC DIISOCYANATES
US5208379A (en) * 1992-05-14 1993-05-04 Arco Chemical Technology, L.P. Hydrolysis of polyurethanes
DE4217019A1 (en) 1992-05-22 1993-11-25 Bayer Ag Process for the preparation of aromatic diisocyanates
DE19817691A1 (en) 1998-04-21 1999-10-28 Basf Ag Production of diphenylmethanediisocyanate and polyphenylene-polymethylene-polyisocynate mixtures
DE10238995A1 (en) 2002-08-20 2004-02-26 Basf Ag Production of aromatic di-isocyanate e.g. used in polyurethane production, comprises gas-phase reaction of phosgene with diamine under moderate pressure in reactor with low phosgene hold-up
DE10260082A1 (en) 2002-12-19 2004-07-01 Basf Ag Process for the continuous production of isocyanates
DE102004013408A1 (en) 2004-03-18 2005-10-06 Basf Ag Polyether alcohols and process for the preparation of polyether alcohols for polyurethane synthesis
RU2376321C2 (en) 2004-05-12 2009-12-20 Фритц Науэр Аг. Flexible polyurethane foam
DE102004030164A1 (en) 2004-06-22 2006-01-19 Basf Ag Process for the preparation of isocyanates
DE102004047524A1 (en) 2004-09-28 2006-03-30 Basf Ag Process for the production of flexible polyurethane foams
EP2044009B1 (en) 2006-07-13 2015-02-25 Basf Se Method for producing isocyanates
US8168818B2 (en) 2006-11-07 2012-05-01 Basf Aktiengesellschaft Method for producing isocyanates
EP2188247B1 (en) 2007-08-30 2018-05-02 Basf Se Method for producing isocyanates
EP2408738B1 (en) 2009-03-20 2017-07-26 Basf Se Method for producing isocyanates
DE102010028583B4 (en) 2009-05-11 2015-04-23 Frank Prissok Degradation of polyurethanes in the presence of special ionic liquids and a low water content
HUE026304T2 (en) 2010-02-26 2016-06-28 Basf Se Method for producing isocyanates in the gas phase
EP2586770A1 (en) 2011-10-27 2013-05-01 Basf Se Method for producing isocyanates and/or polyisocyanates
ES2560408T3 (en) 2011-11-29 2016-02-18 Basf Se Process to produce isocyanates by phosgenation of the respective amines in the gas phase
JP6227624B2 (en) 2012-03-23 2017-11-08 ビーエーエスエフ ソシエタス・ヨーロピアＢａｓｆ Ｓｅ Process for producing polyurethane rigid foam and polyisocyanurate rigid foam
BR112016017431A8 (en) 2014-02-11 2020-06-16 Basf Se polyester polyol (p1), process for the production of rigid polyurethane foams or rigid polyisocyanurate foams, polyol component (pk), rigid foam and use of a polyester polyol (p1)
EP3250622B1 (en) 2015-01-30 2018-11-07 Basf Se Polyphenylene polymethylene polyisocyanates with low by-products
US11512046B2 (en) 2017-04-05 2022-11-29 Basf Se Heterogeneous catalysts for the direct carbonylation of nitro aromatic compounds to isocyanates
GB2598097B (en) * 2020-08-11 2022-12-28 Reliagen Holdings Ltd A method of processing waste material to produce various grades of plastics
EP3957453A1 (en) * 2020-08-20 2022-02-23 Covestro Deutschland AG Method and system for separating waste polyurethane foams
US12590055B2 (en) 2020-11-23 2026-03-31 Basf Se Process for producing isocyanates
EP4104994B1 (en) * 2021-06-18 2023-08-09 Repsol, S.A. Method for sorting flexible polyurethane foams
CN215319914U (en) * 2021-07-08 2021-12-28 山东东特环保科技有限公司 Impurity removing device for waste polyurethane regenerated polyol foam raw material

Also Published As

Publication number Publication date
CN121487991A (en) 2026-02-06
KR20260040604A (en) 2026-03-25
WO2025016860A1 (en) 2025-01-23

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