BE1030133B1 - Procede pour ameliorer le rendement du recyclage chimique de fibres d’acide polylactique et a conserver leurs proprietes physiques - Google Patents

Procede pour ameliorer le rendement du recyclage chimique de fibres d’acide polylactique et a conserver leurs proprietes physiques

Info

Publication number
BE1030133B1
BE1030133B1 BE20216092A BE202106092A BE1030133B1 BE 1030133 B1 BE1030133 B1 BE 1030133B1 BE 20216092 A BE20216092 A BE 20216092A BE 202106092 A BE202106092 A BE 202106092A BE 1030133 B1 BE1030133 B1 BE 1030133B1
Authority
BE
Belgium
Prior art keywords
improving
preserving
performance
physical properties
polylactic acid
Prior art date
Application number
BE20216092A
Other languages
English (en)
Other versions
BE1030133A1 (fr
Inventor
Hélène L'ebrellec
Faraj Hajar
Original Assignee
Noosa
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 Noosa filed Critical Noosa
Priority to BE20216092A priority Critical patent/BE1030133B1/fr
Priority to PCT/EP2022/088010 priority patent/WO2023126480A1/fr
Publication of BE1030133A1 publication Critical patent/BE1030133A1/fr
Application granted granted Critical
Publication of BE1030133B1 publication Critical patent/BE1030133B1/fr

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
    • C08J11/18—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
    • 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
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
    • C07C51/09—Preparation of carboxylic acids or their salts, halides or anhydrides from carboxylic acid esters or lactones
    • 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
    • C08J11/06—Recovery or working-up of waste materials of polymers without chemical reactions
    • C08J11/08—Recovery or working-up of waste materials of polymers without chemical reactions using selective solvents for polymer components
    • 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
    • B29B2017/0286—Cleaning means used for separation
    • B29B2017/0289—Washing the materials 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
    • B29B2017/0293—Dissolving the materials in gases or liquids
    • 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
    • B29K2067/00—Use of polyesters or derivatives thereof, as moulding material
    • B29K2067/04—Polyesters derived from hydroxycarboxylic acids
    • B29K2067/046—PLA, i.e. polylactic acid or polylactide
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/726—Fabrics
    • 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
    • C08J2367/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
    • C08J2367/04—Polyesters derived from hydroxy carboxylic acids, e.g. lactones

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Polymers & Plastics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Sustainable Development (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Environmental & Geological Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Biological Depolymerization Polymers (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)

Abstract

On décrit un procédé pour améliorer le rendement du recyclage de fibres textile PLA comprenant : - La décontamination de la matière textile ; - La séparation des fibres textile PLA des autres fibres textiles non-PLA, par dissolution dans un ester lactique; - L’hydrolyse de cette solution d’ester lactique en acide lactique; - La récupération de l’acide lactique sa polymérisation pour reformer du PLA Caractérisé en ce que l’on soumet les fibres textiles après l’étape de décontamination à une étape de séchage afin de réduire la teneur en eau.
BE20216092A 2021-12-29 2021-12-29 Procede pour ameliorer le rendement du recyclage chimique de fibres d’acide polylactique et a conserver leurs proprietes physiques BE1030133B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
BE20216092A BE1030133B1 (fr) 2021-12-29 2021-12-29 Procede pour ameliorer le rendement du recyclage chimique de fibres d’acide polylactique et a conserver leurs proprietes physiques
PCT/EP2022/088010 WO2023126480A1 (fr) 2021-12-29 2022-12-29 Procede pour isoler les fibres a base de d'acide polylactique hors d'un melange de fibres textiles et recuperation de ces dernieres ne contenant plus d'acide polylactique

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE20216092A BE1030133B1 (fr) 2021-12-29 2021-12-29 Procede pour ameliorer le rendement du recyclage chimique de fibres d’acide polylactique et a conserver leurs proprietes physiques

Publications (2)

Publication Number Publication Date
BE1030133A1 BE1030133A1 (fr) 2023-07-24
BE1030133B1 true BE1030133B1 (fr) 2023-07-31

Family

ID=79730303

Family Applications (1)

Application Number Title Priority Date Filing Date
BE20216092A BE1030133B1 (fr) 2021-12-29 2021-12-29 Procede pour ameliorer le rendement du recyclage chimique de fibres d’acide polylactique et a conserver leurs proprietes physiques

Country Status (1)

Country Link
BE (1) BE1030133B1 (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010118954A1 (fr) * 2009-04-14 2010-10-21 Galactic S.A. Recyclage chimique du pla par hydrolyse
US20210261748A1 (en) * 2017-02-20 2021-08-26 Ikea Supply Ag Polyester textile waste recycling

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1019608A3 (fr) 2009-04-14 2012-09-04 Galactic Sa Recyclage chimique du pla par alcoolyse.
BE1018882A3 (fr) 2009-09-10 2011-10-04 Galactic Sa Procede de recyclage stereospecifique d'un melange de polymeres a base de pla.

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010118954A1 (fr) * 2009-04-14 2010-10-21 Galactic S.A. Recyclage chimique du pla par hydrolyse
US20210261748A1 (en) * 2017-02-20 2021-08-26 Ikea Supply Ag Polyester textile waste recycling

Also Published As

Publication number Publication date
BE1030133A1 (fr) 2023-07-24

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FG Patent granted

Effective date: 20230731