GB1084563A - Method for preparing a spinning solution from waste arising during the production offibres of acrylonitrile polymers or copolymers - Google Patents

Method for preparing a spinning solution from waste arising during the production offibres of acrylonitrile polymers or copolymers

Info

Publication number
GB1084563A
GB1084563A GB413365A GB413365A GB1084563A GB 1084563 A GB1084563 A GB 1084563A GB 413365 A GB413365 A GB 413365A GB 413365 A GB413365 A GB 413365A GB 1084563 A GB1084563 A GB 1084563A
Authority
GB
United Kingdom
Prior art keywords
organic solvent
waste
waste material
fibres
production
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
Application number
GB413365A
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.)
ZAKLADY WLOKIEN SZTUCZNYCH ANI
Original Assignee
ZAKLADY WLOKIEN SZTUCZNYCH ANI
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 ZAKLADY WLOKIEN SZTUCZNYCH ANI filed Critical ZAKLADY WLOKIEN SZTUCZNYCH ANI
Publication of GB1084563A publication Critical patent/GB1084563A/en
Expired 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
    • 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
    • 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
    • D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
    • D01F6/02—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D01F6/18—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds from polymers of unsaturated nitriles, e.g. polyacrylonitrile, polyvinylidene cyanide
    • 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
    • C08J2333/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers
    • C08J2333/18—Homopolymers or copolymers of nitriles
    • C08J2333/20—Homopolymers or copolymers of acrylonitrile
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
    • Y02P70/62—Manufacturing or production processes characterised by the final manufactured product related technologies for production or treatment of textile or flexible materials or products thereof, including footwear
    • 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)
  • Chemical Kinetics & Catalysis (AREA)
  • Textile Engineering (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Artificial Filaments (AREA)

Abstract

Spinning solutions are prepared from waste materials, arising during the production of fibres of acrylonitrile homo- or co-polymers from spinning solutions whose solvent is an aqueous solution of a suitable inorganic salt, e.g. sodium thiocyanate, by a process wherein the waste material comprising coagulates of the original spinning solution, or waste fibres, still containing 0.1 to 15% by weight of said salt is comminuted or cut into short chips, dried at 40-130 DEG C., added to a cooled organic solvent suitable for preparing spinning solutions from said polymers, allowed to swell for 0.5 to 20.0 hours, and the swollen material then heated in said organic solvent to 50-130 DEG C. until the waste material is completely dissolved. In the drying step, heating is preferably continued until the waste material has a water content not exceeding 5% by weight. Preferably, the dried material is added to the organic solvent, e.g. dimethylformamide, while the latter is being agitated and is at a temperature of 5-20 DEG C., agitation then being continued until dissolution of the waste material has been achieved. The solution obtained may then be filtered and deaerated before being spun into fibres in a bath of the said organic solvent diluted with water.
GB413365A 1964-01-31 1965-01-29 Method for preparing a spinning solution from waste arising during the production offibres of acrylonitrile polymers or copolymers Expired GB1084563A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL10359064 1964-01-31

Publications (1)

Publication Number Publication Date
GB1084563A true GB1084563A (en) 1967-09-27

Family

ID=19941372

Family Applications (1)

Application Number Title Priority Date Filing Date
GB413365A Expired GB1084563A (en) 1964-01-31 1965-01-29 Method for preparing a spinning solution from waste arising during the production offibres of acrylonitrile polymers or copolymers

Country Status (3)

Country Link
DD (1) DD46053A (en)
FR (1) FR1421934A (en)
GB (1) GB1084563A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013118132A1 (en) * 2012-02-10 2013-08-15 Adab Omid A process for conversion of grey acrylic fiber waste to acrylic powder
CN111518311A (en) * 2019-02-03 2020-08-11 中国石油天然气股份有限公司 Method for recovering waste silk of polyacrylonitrile-based carbon fiber precursor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013118132A1 (en) * 2012-02-10 2013-08-15 Adab Omid A process for conversion of grey acrylic fiber waste to acrylic powder
CN111518311A (en) * 2019-02-03 2020-08-11 中国石油天然气股份有限公司 Method for recovering waste silk of polyacrylonitrile-based carbon fiber precursor

Also Published As

Publication number Publication date
FR1421934A (en) 1965-12-17
DD46053A (en) 1966-03-05

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