EP4136282A4 - Verfahren zur rückgewinnung und wiederverwendung von chemikalien in einem verfahren mit regenerierter cellulosefaser - Google Patents

Verfahren zur rückgewinnung und wiederverwendung von chemikalien in einem verfahren mit regenerierter cellulosefaser Download PDF

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Publication number
EP4136282A4
EP4136282A4 EP21789259.5A EP21789259A EP4136282A4 EP 4136282 A4 EP4136282 A4 EP 4136282A4 EP 21789259 A EP21789259 A EP 21789259A EP 4136282 A4 EP4136282 A4 EP 4136282A4
Authority
EP
European Patent Office
Prior art keywords
recycle
chemicals
recovery
cellulose fiber
regenerated 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
EP21789259.5A
Other languages
English (en)
French (fr)
Other versions
EP4136282A1 (de
Inventor
Lars Stigsson
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 EP4136282A1 publication Critical patent/EP4136282A1/de
Publication of EP4136282A4 publication Critical patent/EP4136282A4/de
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B1/00—Electrolytic production of inorganic compounds or non-metals
    • C25B1/01—Products
    • C25B1/14—Alkali metal compounds
    • C25B1/16—Hydroxides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/42—Electrodialysis; Electro-osmosis ; Electro-ultrafiltration; Membrane capacitive deionization
    • B01D61/422—Electrodialysis
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
    • C01D5/00—Sulfates or sulfites of sodium, potassium or alkali metals in general
    • C01D5/006—Recovery of sodium sulfate from coagulation baths for the spinning of viscose
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B1/00—Electrolytic production of inorganic compounds or non-metals
    • C25B1/01—Products
    • C25B1/22—Inorganic acids
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B15/00—Operating or servicing cells
    • C25B15/08—Supplying or removing reactants or electrolytes; Regeneration of electrolytes
    • C25B15/081—Supplying products to non-electrochemical reactors that are combined with the electrochemical cell, e.g. Sabatier reactor
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B9/00—Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies; Process-related cell features
    • C25B9/17—Cells comprising dimensionally-stable non-movable electrodes; Assemblies of constructional parts thereof
    • C25B9/19—Cells comprising dimensionally-stable non-movable electrodes; Assemblies of constructional parts thereof with diaphragms
    • C25B9/21—Cells comprising dimensionally-stable non-movable electrodes; Assemblies of constructional parts thereof with diaphragms two or more diaphragms
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/06—Wet spinning methods
    • 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)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Electrochemistry (AREA)
  • Metallurgy (AREA)
  • Inorganic Chemistry (AREA)
  • Textile Engineering (AREA)
  • Urology & Nephrology (AREA)
  • Health & Medical Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Artificial Filaments (AREA)
EP21789259.5A 2020-04-17 2021-04-16 Verfahren zur rückgewinnung und wiederverwendung von chemikalien in einem verfahren mit regenerierter cellulosefaser Pending EP4136282A4 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE2050437 2020-04-17
PCT/SE2021/050349 WO2021211046A1 (en) 2020-04-17 2021-04-16 Process for the recovery and recycle of chemicals in a regenerated cellulose fiber process

Publications (2)

Publication Number Publication Date
EP4136282A1 EP4136282A1 (de) 2023-02-22
EP4136282A4 true EP4136282A4 (de) 2024-10-02

Family

ID=78084826

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21789259.5A Pending EP4136282A4 (de) 2020-04-17 2021-04-16 Verfahren zur rückgewinnung und wiederverwendung von chemikalien in einem verfahren mit regenerierter cellulosefaser

Country Status (2)

Country Link
EP (1) EP4136282A4 (de)
WO (1) WO2021211046A1 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI131797B1 (en) * 2022-05-10 2025-12-03 Upm Kymmene Corp Process for preparing an alkaline cellulose solution
EP4616021A1 (de) 2022-11-08 2025-09-17 TreeToTextile AB Gewebe mit regenerierter zellulose
EP4368753A1 (de) 2022-11-08 2024-05-15 TreeToTextile AB Gewebe mit regenerierter zellulose

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0032007B1 (de) * 1979-12-11 1985-03-20 The Electricity Council Verfahren zur Regenerierung von Säure bei der Herstellung regenerierter Cellulose
CN103343403A (zh) * 2013-07-24 2013-10-09 宜宾海翔化工有限责任公司 一种粘胶纤维硫酸钠废液经双极膜电渗析法回收酸碱的工艺

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS535974B2 (de) * 1974-10-21 1978-03-03
US4504373A (en) * 1982-06-01 1985-03-12 Allied Corporation Electrodialytic water splitting process and apparatus for conversion of alkali metal sulfate values derived from spent rayon spin baths
DE3315626A1 (de) * 1983-04-29 1984-10-31 Hoechst Ag, 6230 Frankfurt Verfahren zur anreicherung von schwefelsaeure
ES2703390T3 (es) * 2009-03-09 2019-03-08 Treetotextile Ab Procedimiento de fabricación de celulosa conformada combinado con un sistema de recuperación de fábrica de pasta
EP3521248A1 (de) * 2013-07-01 2019-08-07 TreeToTextile AB Alkali-recycling in einem cellulosespinnverfahren
EP3231901A1 (de) * 2016-04-14 2017-10-18 TreeToTextile AB Verfahren zum spinnen aufgelöster cellulose enthaltend das rückgewinnen eines wässrigen natriumhydroxid lösungsmittel für cellulose aus der fällbadablauge
EP3231899A1 (de) * 2016-04-14 2017-10-18 TreeToTextile AB Verfahren und system zur herstellung einer spinnlösungszusammensetzung
EP3983583A4 (de) * 2019-06-13 2023-07-12 TreeToTextile AB Aus recyceltem zelluloseabfallmaterial hergestellte fasern

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0032007B1 (de) * 1979-12-11 1985-03-20 The Electricity Council Verfahren zur Regenerierung von Säure bei der Herstellung regenerierter Cellulose
CN103343403A (zh) * 2013-07-24 2013-10-09 宜宾海翔化工有限责任公司 一种粘胶纤维硫酸钠废液经双极膜电渗析法回收酸碱的工艺

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2021211046A1 *

Also Published As

Publication number Publication date
WO2021211046A1 (en) 2021-10-21
EP4136282A1 (de) 2023-02-22

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