EP3969645A4 - Recovery of chemicals in cellulose spinning - Google Patents

Recovery of chemicals in cellulose spinning Download PDF

Info

Publication number
EP3969645A4
EP3969645A4 EP20805931.1A EP20805931A EP3969645A4 EP 3969645 A4 EP3969645 A4 EP 3969645A4 EP 20805931 A EP20805931 A EP 20805931A EP 3969645 A4 EP3969645 A4 EP 3969645A4
Authority
EP
European Patent Office
Prior art keywords
chemicals
recovery
cellulose spinning
spinning
cellulose
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.)
Pending
Application number
EP20805931.1A
Other languages
German (de)
French (fr)
Other versions
EP3969645A1 (en
Inventor
Jonas ENGSTRÖM
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.)
Treetotextile AB
Original Assignee
Treetotextile AB
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 Treetotextile AB filed Critical Treetotextile AB
Publication of EP3969645A1 publication Critical patent/EP3969645A1/en
Publication of EP3969645A4 publication Critical patent/EP3969645A4/en
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
    • C08B1/00—Preparatory treatment of cellulose for making derivatives thereof, e.g. pre-treatment, pre-soaking, activation
    • C08B1/003—Preparation of cellulose solutions, i.e. dopes, with different possible solvents, e.g. ionic liquids
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
    • C08B16/00—Regeneration of cellulose
    • 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
    • D01F13/02—Recovery of starting material, waste material or solvents during the manufacture of artificial filaments or the like of cellulose, cellulose derivatives or proteins
    • 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
    • D01F2/00—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof
    • D01F2/02—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof from solutions of cellulose in acids, bases or salts
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Biochemistry (AREA)
  • Textile Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
EP20805931.1A 2019-05-15 2020-05-08 Recovery of chemicals in cellulose spinning Pending EP3969645A4 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE1950576 2019-05-15
PCT/SE2020/050475 WO2020231315A1 (en) 2019-05-15 2020-05-08 Recovery of chemicals in cellulose spinning

Publications (2)

Publication Number Publication Date
EP3969645A1 EP3969645A1 (en) 2022-03-23
EP3969645A4 true EP3969645A4 (en) 2023-06-21

Family

ID=73290252

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20805931.1A Pending EP3969645A4 (en) 2019-05-15 2020-05-08 Recovery of chemicals in cellulose spinning

Country Status (2)

Country Link
EP (1) EP3969645A4 (en)
WO (1) WO2020231315A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113800608B (en) * 2021-09-10 2022-07-05 宜宾丝丽雅股份有限公司 Control method and system for treating viscose waste liquid by using bipolar membrane applicable to spinning system
EP4368753A1 (en) 2022-11-08 2024-05-15 TreeToTextile AB A fabric with regenerated cellulose
WO2024102053A1 (en) 2022-11-08 2024-05-16 Treetotextile Ab A fabric with regenerated cellulose
WO2024146979A1 (en) 2023-01-05 2024-07-11 Infinited Fiber Company Oy Method of recycling an aqueous alkaline spin bath
WO2024184238A1 (en) 2023-03-03 2024-09-12 Ikea Supply Ag Mechanically bonded non-woven fabric

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2164943A (en) * 1984-09-27 1986-04-03 Neste Oy Improvements in carbamate production
WO2015000820A1 (en) * 2013-07-01 2015-01-08 Kiram Ab Alkali recycle in cellulose spinning process
WO2017178532A1 (en) * 2016-04-14 2017-10-19 Treetotextile Ab Process for spinning dissolved cellulose

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI69852C (en) * 1984-09-27 1986-05-26 Neste Oy CYCLIC FAR OIL FRAMING PROCESSING AND ENCOALIZATION OF CELLULOSE CARBAMATE FOR UTFAELLING AV CARBAMATE OCH FOERAOTERVINNING AV KEMIKALIERNA

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2164943A (en) * 1984-09-27 1986-04-03 Neste Oy Improvements in carbamate production
WO2015000820A1 (en) * 2013-07-01 2015-01-08 Kiram Ab Alkali recycle in cellulose spinning process
WO2017178532A1 (en) * 2016-04-14 2017-10-19 Treetotextile Ab Process for spinning dissolved cellulose

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
MAHMOUDKHANI M ET AL: "Low-energy sodium hydroxide recovery for CO"2 capture from atmospheric air-Thermodynamic analysis", INTERNATIONAL JOURNAL OF GREENHOUSE GAS CONTROL, ELSEVIER, AMSTERDAM, NL, vol. 3, no. 4, 1 July 2009 (2009-07-01), pages 376 - 384, XP026174261, ISSN: 1750-5836, [retrieved on 20090324], DOI: 10.1016/J.IJGGC.2009.02.003 *
See also references of WO2020231315A1 *

Also Published As

Publication number Publication date
EP3969645A1 (en) 2022-03-23
WO2020231315A1 (en) 2020-11-19

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