CA2261304C - Procede pour separer de la polyamide d'un colorant - Google Patents

Procede pour separer de la polyamide d'un colorant Download PDF

Info

Publication number
CA2261304C
CA2261304C CA 2261304 CA2261304A CA2261304C CA 2261304 C CA2261304 C CA 2261304C CA 2261304 CA2261304 CA 2261304 CA 2261304 A CA2261304 A CA 2261304A CA 2261304 C CA2261304 C CA 2261304C
Authority
CA
Canada
Prior art keywords
polyamide
solution
nylon
colorant
polymer
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.)
Expired - Fee Related
Application number
CA 2261304
Other languages
English (en)
Other versions
CA2261304A1 (fr
Inventor
Yiqi Yang
Lemoyne W. Plischke
George R. Mclellan
Jerauld L. Dickerson
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.)
Ascend Performance Materials LLC
Original Assignee
Solutia Inc
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
Priority claimed from US09/019,910 external-priority patent/US6036726A/en
Application filed by Solutia Inc filed Critical Solutia Inc
Publication of CA2261304A1 publication Critical patent/CA2261304A1/fr
Application granted granted Critical
Publication of CA2261304C publication Critical patent/CA2261304C/fr
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • C08J11/06—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
    • C08J11/02—Recovery or working-up of waste materials of solvents, plasticisers or unreacted monomers
    • 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

Abstract

Un procédé pour recycler un matériau en polyamide coloré comprend les étapes consistant à (a) mettre en contact le matériau polyamide de couleur solide avec une composition de solvant organique à une température efficace pour dissoudre le polyamide, formant ainsi une solution contenant le colorant et le polyamide dissous, et (b) séparer le colorant et le polyamide. Le procédé peut facultativement comprendre en outre l'étape consistant à récupérer le colorant, récupérer le polyamide, ou récupérer à la fois le polymère et le colorant. La composition de solvant organique est de préférence choisie dans le groupe constitué par les cétones aliphatiques et aromatiques, les alcools aliphatiques et aromatiques, les diols, l'eau et leurs combinaisons. Les compositions de solvants comprenant au moins un alcool choisi dans le groupe constitué par le butanediol, le butanol, l'éthanol et l'alcool benzylique sont préférées, telles les solutions aqueuses de 1-butanol ou d'éthanol.
CA 2261304 1998-02-06 1999-02-05 Procede pour separer de la polyamide d'un colorant Expired - Fee Related CA2261304C (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/019,910 US6036726A (en) 1995-10-27 1998-02-06 Process for separating polyamide from colorant
US09/019,910 1998-02-06

Publications (2)

Publication Number Publication Date
CA2261304A1 CA2261304A1 (fr) 1999-08-06
CA2261304C true CA2261304C (fr) 2008-09-23

Family

ID=29581767

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2261304 Expired - Fee Related CA2261304C (fr) 1998-02-06 1999-02-05 Procede pour separer de la polyamide d'un colorant

Country Status (1)

Country Link
CA (1) CA2261304C (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6036726A (en) * 1995-10-27 2000-03-14 Solutia Inc. Process for separating polyamide from colorant
GB2528494B (en) * 2014-07-24 2018-01-03 Worn Again Footwear And Accessories Ltd Process for extracting polyester and dyes from fabric
CN110433768A (zh) * 2019-04-26 2019-11-12 福建工程学院 一种高比表面积椰壳活性炭的制备方法
WO2021013849A1 (fr) 2019-07-24 2021-01-28 Smart Coloring Gmbh Procédé de décoloration d'un matériau de polymère polaire synthétique ou non synthétique coloré
EP3770208B1 (fr) * 2019-07-24 2024-02-07 Smart Coloring GmbH Procédé de décoloration d'un matériau polymère polaire synthétique ou non synthétique coloré
CN111892743B (zh) * 2020-06-30 2022-02-18 金发科技股份有限公司 一种聚酰胺回收工艺与通过回收工艺得到的聚酰胺

Also Published As

Publication number Publication date
CA2261304A1 (fr) 1999-08-06

Similar Documents

Publication Publication Date Title
US6036726A (en) Process for separating polyamide from colorant
US5898063A (en) Carpet recycling process for nylon containing carpeting
US6083283A (en) Method for removing color from ionically dyeable polymeric materials
EP2922905B1 (fr) Traitement de déchets de textiles en coton et polyester
WO2008125465A1 (fr) Procédé destiné à éliminer la couleur d'un matériau polymère
DE60121948T2 (de) Auf lösungsmittel basierende rückgewinnung und wiederverwertung eines polyamidmaterials
CA2261304C (fr) Procede pour separer de la polyamide d'un colorant
CA2417819C (fr) Procede pour la separation et la recuperation de polymeres cibles et de leurs additifs dans un materiau contenant des polymeres
US5849804A (en) Recovery of polyamides from composite articles
US6140463A (en) Process for recycling and recovery of purified nylon polymer
CN100443531C (zh) 回收溶液中聚合物的方法
JP2005255963A (ja) 繊維状ポリエステルからエステルモノマーを回収する方法
Mu et al. Rapid fiber-to-fiber recycling of poly (ethylene terephthalate) and its dye from waste textiles without damaging their chemical structures
US7790777B2 (en) Method for recovering a polymer in solution
US20060070188A1 (en) Colorant Removal from Polymeric Fibers
TW202235508A (zh) 用於回收處理之聚酯廢棄物的進料工程
CA2261303C (fr) Methode pour eliminer la couleur de matieres polymeres pouvant etre teintees ioniquement
US10640914B2 (en) Method for decolorizing textile materials
CN108350292B (zh) 用于使织物材料脱色的氧化方法
US20040229965A1 (en) Method for separating and recovering target polymers and their additives from a material containing polymers
US20040116563A1 (en) Method for separating at least one selected polymer from a mixture of polymers
CA3226741A1 (fr) Procede de production d'epsilon-caprolactame par depolymerisation de polycaprolactame (pa6)
GB2408047A (en) Colourant for use in thermoplastic compositions
CN116003874A (zh) 含聚酯、尼龙及染料的废弃织物处理方法
CN117897438A (zh) 纺织品分离方法

Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed

Effective date: 20150205

MKLA Lapsed

Effective date: 20150205