BE1030134B1 - METHOD FOR ISOLATING FIBERS BASED ON POLYLACTIC ACID OUT OF A MIXTURE OF TEXTILE FIBERS AND RECOVERING THE LATTER NO LONGER CONTAINING POLYLACTIC ACID - Google Patents

METHOD FOR ISOLATING FIBERS BASED ON POLYLACTIC ACID OUT OF A MIXTURE OF TEXTILE FIBERS AND RECOVERING THE LATTER NO LONGER CONTAINING POLYLACTIC ACID

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Publication number
BE1030134B1
BE1030134B1 BE20216093A BE202106093A BE1030134B1 BE 1030134 B1 BE1030134 B1 BE 1030134B1 BE 20216093 A BE20216093 A BE 20216093A BE 202106093 A BE202106093 A BE 202106093A BE 1030134 B1 BE1030134 B1 BE 1030134B1
Authority
BE
Belgium
Prior art keywords
pla
textile fibers
polylactic acid
fibers
mixture
Prior art date
Application number
BE20216093A
Other languages
French (fr)
Other versions
BE1030134A1 (en
Inventor
Faraj Hajar
Hélène L'ebrellec
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 BE20216093A priority Critical patent/BE1030134B1/en
Priority to PCT/EP2022/088010 priority patent/WO2023126480A1/en
Publication of BE1030134A1 publication Critical patent/BE1030134A1/en
Application granted granted Critical
Publication of BE1030134B1 publication Critical patent/BE1030134B1/en

Links

Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F13/00—Recovery of starting material, waste material or solvents during the manufacture of artificial filaments or the like
    • D01F13/04—Recovery of starting material, waste material or solvents during the manufacture of artificial filaments or the like of synthetic polymers
    • 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
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C67/00—Preparation of carboxylic acid esters
    • C07C67/03—Preparation of carboxylic acid esters by reacting an ester group with a hydroxy group
    • 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
    • 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
    • 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
    • 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
    • C08J2363/00—Characterised by the use of epoxy resins; Derivatives of epoxy resins
    • C08J2363/04—Epoxynovolacs

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • General Chemical & Material Sciences (AREA)
  • Textile Engineering (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Environmental & Geological Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)

Abstract

On décrit un procédé de traitement d’un mélange de fibres textiles caractérisé en ce qu’il comprend les étapes suivantes : - Introduire le mélange de fibres textiles dans une cuve - Introduire dans cette cuve un solvant du PLA dans un rapport massique masse de PLA/ester lactique compris entre 0,06 et 0,09, à une température comprise entre 100 et 130°C - Récupérer la solution contenant les fibres textiles contenant du PLA et les soumettre à un traitement pour récupérer l’acide lactique - Séparer les fibres textiles non-PLA du solvant d’ester lactique par extraction liquide/solide - Introduire les fibres textiles non-PLA résiduelles dans un autre cuve munie d’un système de filtration - Laver les fibres textiles non-PLA et récupérer le solvant résiduel - Récupérer les fibres textiles non-PLA et les traiter pour les recarder et les réutiliserA process for treating a mixture of textile fibers is described, characterized in that it comprises the following steps: - Introducing the mixture of textile fibers into a tank - Introducing into this tank a solvent for PLA in a mass ratio of PLA /lactic ester between 0.06 and 0.09, at a temperature between 100 and 130°C - Recover the solution containing the textile fibers containing PLA and subject them to a treatment to recover the lactic acid - Separate the fibers non-PLA textiles from the lactic ester solvent by liquid/solid extraction - Introduce the residual non-PLA textile fibers into another tank equipped with a filtration system - Wash the non-PLA textile fibers and recover the residual solvent - Recover non-PLA textile fibers and process them for recarding and reuse

BE20216093A 2021-12-29 2021-12-29 METHOD FOR ISOLATING FIBERS BASED ON POLYLACTIC ACID OUT OF A MIXTURE OF TEXTILE FIBERS AND RECOVERING THE LATTER NO LONGER CONTAINING POLYLACTIC ACID BE1030134B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
BE20216093A BE1030134B1 (en) 2021-12-29 2021-12-29 METHOD FOR ISOLATING FIBERS BASED ON POLYLACTIC ACID OUT OF A MIXTURE OF TEXTILE FIBERS AND RECOVERING THE LATTER NO LONGER CONTAINING POLYLACTIC ACID
PCT/EP2022/088010 WO2023126480A1 (en) 2021-12-29 2022-12-29 Method for isolating fibers polylactic acid-based from a mixture of textile fibers and recovery of the latter no longer containing polylactic acid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE20216093A BE1030134B1 (en) 2021-12-29 2021-12-29 METHOD FOR ISOLATING FIBERS BASED ON POLYLACTIC ACID OUT OF A MIXTURE OF TEXTILE FIBERS AND RECOVERING THE LATTER NO LONGER CONTAINING POLYLACTIC ACID

Publications (2)

Publication Number Publication Date
BE1030134A1 BE1030134A1 (en) 2023-07-24
BE1030134B1 true BE1030134B1 (en) 2023-07-31

Family

ID=79730425

Family Applications (1)

Application Number Title Priority Date Filing Date
BE20216093A BE1030134B1 (en) 2021-12-29 2021-12-29 METHOD FOR ISOLATING FIBERS BASED ON POLYLACTIC ACID OUT OF A MIXTURE OF TEXTILE FIBERS AND RECOVERING THE LATTER NO LONGER CONTAINING POLYLACTIC ACID

Country Status (1)

Country Link
BE (1) BE1030134B1 (en)

Citations (2)

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

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6844307B1 (en) 2002-02-04 2005-01-18 Jeffrey Todd Sumner Compositions to reduce textile contaminants and associated processing methods

Patent Citations (2)

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

Also Published As

Publication number Publication date
BE1030134A1 (en) 2023-07-24

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FG Patent granted

Effective date: 20230731