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AR132874A1 - PROCESS FOR THE HYDROLYTIC DEPOLYMERIZATION OF A POLYAMIDE - Google Patents

PROCESS FOR THE HYDROLYTIC DEPOLYMERIZATION OF A POLYAMIDE

Info

Publication number
AR132874A1
AR132874A1 ARP240101435A ARP240101435A AR132874A1 AR 132874 A1 AR132874 A1 AR 132874A1 AR P240101435 A ARP240101435 A AR P240101435A AR P240101435 A ARP240101435 A AR P240101435A AR 132874 A1 AR132874 A1 AR 132874A1
Authority
AR
Argentina
Prior art keywords
polyamide
mixture
raw material
depolymerization
aqueous stream
Prior art date
Application number
ARP240101435A
Other languages
Spanish (es)
Inventor
Stefan Blei
Faissal El-Toufaili
- Ravikumar Vikram Raghavendhar Ali
Esther Matyka Laryea
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 AR132874A1 publication Critical patent/AR132874A1/en

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
    • 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
    • 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
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L77/00—Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
    • C08L77/02—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

Landscapes

  • 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)

Abstract

Un proceso para la despolimerización hidrolítica de poliamida comprendida en una materia prima química F, en donde el proceso comprende proporcionar la materia prima química F, proporcionar una corriente acuosa líquida SW, preparar una mezcla que comprende la materia prima F y la corriente acuosa líquida SW y someter dicha mezcla a condiciones de despolimerización de poliamida 6 en una unidad de reacción química UR, obtener una corriente acuosa SE que sale de UR, donde la corriente comprende e-caprolactama, en donde la mezcla que se debe someter a condiciones de despolimerización de poliamida 6 comprende poliamida 6 y comprende además tereftalato de polietileno y poliamida 6.6 a una relación de masa rS = (mPA₆.₆ + mPET) / mPA₆ con 0,01 &A process for the hydrolytic depolymerization of polyamide comprised in a chemical raw material F, wherein the process comprises providing the chemical raw material F, providing a liquid aqueous stream SW, preparing a mixture comprising the raw material F and the liquid aqueous stream SW and subjecting said mixture to polyamide 6 depolymerization conditions in a chemical reaction unit UR, obtaining an aqueous stream SE exiting UR, where the stream comprises e-caprolactam, wherein the mixture to be subjected to polyamide 6 depolymerization conditions comprises polyamide 6 and further comprises polyethylene terephthalate and polyamide 6.6 at a mass ratio rS = (mPA₆.₆ + mPET) / mPA₆ with 0.01 &

ARP240101435A 2023-06-06 2024-06-05 PROCESS FOR THE HYDROLYTIC DEPOLYMERIZATION OF A POLYAMIDE AR132874A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP23177597 2023-06-06
EP23211701 2023-11-23

Publications (1)

Publication Number Publication Date
AR132874A1 true AR132874A1 (en) 2025-08-06

Family

ID=91465250

Family Applications (1)

Application Number Title Priority Date Filing Date
ARP240101435A AR132874A1 (en) 2023-06-06 2024-06-05 PROCESS FOR THE HYDROLYTIC DEPOLYMERIZATION OF A POLYAMIDE

Country Status (3)

Country Link
AR (1) AR132874A1 (en)
TW (1) TW202506640A (en)
WO (1) WO2024251760A1 (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07330719A (en) * 1994-06-01 1995-12-19 Toray Ind Inc Method for purifying epsilon-caprolactam
JPH07330720A (en) * 1994-06-01 1995-12-19 Toray Ind Inc Method for purifying epsilon-caprolactam
JPH08217746A (en) * 1995-02-09 1996-08-27 Toray Ind Inc Urification of epsilon-caprolactam
JP5715415B2 (en) 2007-06-20 2015-05-07 ビーエーエスエフ ソシエタス・ヨーロピアＢａｓｆ Ｓｅ Process for producing polyamide in an extruder
EP2641939A1 (en) 2012-03-21 2013-09-25 Basf Se Brightly coloured flame-retardant polyamides

Also Published As

Publication number Publication date
TW202506640A (en) 2025-02-16
WO2024251760A1 (en) 2024-12-12

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