WO2021211046A1 - Procédé de récupération et de recyclage de produits chimiques dans un procédé de fibre de cellulose régénérée - Google Patents
Procédé de récupération et de recyclage de produits chimiques dans un procédé de fibre de cellulose régénérée Download PDFInfo
- Publication number
- WO2021211046A1 WO2021211046A1 PCT/SE2021/050349 SE2021050349W WO2021211046A1 WO 2021211046 A1 WO2021211046 A1 WO 2021211046A1 SE 2021050349 W SE2021050349 W SE 2021050349W WO 2021211046 A1 WO2021211046 A1 WO 2021211046A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- cellulose
- electrolysis
- process according
- spinning
- sodium hydroxide
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 59
- 239000000126 substance Substances 0.000 title claims abstract description 20
- 238000011084 recovery Methods 0.000 title claims abstract description 11
- 229920003043 Cellulose fiber Polymers 0.000 title description 3
- 239000004627 regenerated cellulose Substances 0.000 title description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract description 99
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims abstract description 46
- 238000005868 electrolysis reaction Methods 0.000 claims abstract description 38
- 239000000835 fiber Substances 0.000 claims abstract description 38
- 229920002678 cellulose Polymers 0.000 claims abstract description 33
- 239000001913 cellulose Substances 0.000 claims abstract description 33
- 238000005406 washing Methods 0.000 claims abstract description 29
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims abstract description 26
- 238000009987 spinning Methods 0.000 claims abstract description 25
- 229910052938 sodium sulfate Inorganic materials 0.000 claims abstract description 23
- 235000011152 sodium sulphate Nutrition 0.000 claims abstract description 23
- 239000002904 solvent Substances 0.000 claims abstract description 12
- 229920000875 Dissolving pulp Polymers 0.000 claims abstract description 9
- 238000002203 pretreatment Methods 0.000 claims abstract description 6
- 229920002488 Hemicellulose Polymers 0.000 claims abstract description 5
- 238000004090 dissolution Methods 0.000 claims abstract description 4
- 230000008929 regeneration Effects 0.000 claims abstract description 3
- 238000011069 regeneration method Methods 0.000 claims abstract description 3
- 230000002378 acidificating effect Effects 0.000 claims description 11
- 239000012535 impurity Substances 0.000 claims description 10
- 229920000297 Rayon Polymers 0.000 claims description 7
- 238000001704 evaporation Methods 0.000 claims description 7
- 230000008020 evaporation Effects 0.000 claims description 7
- 238000005342 ion exchange Methods 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 238000005345 coagulation Methods 0.000 claims description 5
- 230000015271 coagulation Effects 0.000 claims description 5
- 150000001875 compounds Chemical class 0.000 claims description 5
- 239000007788 liquid Substances 0.000 claims description 4
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 3
- 238000005189 flocculation Methods 0.000 claims description 3
- 230000016615 flocculation Effects 0.000 claims description 3
- 238000005188 flotation Methods 0.000 claims description 3
- 239000002655 kraft paper Substances 0.000 claims description 3
- 238000000746 purification Methods 0.000 claims description 3
- 238000000926 separation method Methods 0.000 claims description 3
- 230000000295 complement effect Effects 0.000 claims description 2
- 238000001556 precipitation Methods 0.000 claims description 2
- 239000011701 zinc Substances 0.000 description 8
- QGJOPFRUJISHPQ-UHFFFAOYSA-N Carbon disulfide Chemical compound S=C=S QGJOPFRUJISHPQ-UHFFFAOYSA-N 0.000 description 6
- 239000002028 Biomass Substances 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 3
- 239000000654 additive Substances 0.000 description 3
- 239000002253 acid Substances 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000007380 fibre production Methods 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 239000010446 mirabilite Substances 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- 150000003752 zinc compounds Chemical class 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000003113 alkalizing effect Effects 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 238000005341 cation exchange Methods 0.000 description 1
- 238000003843 chloralkali process Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000001212 derivatisation Methods 0.000 description 1
- 238000003487 electrochemical reaction Methods 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 230000005686 electrostatic field Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- 150000004679 hydroxides Chemical class 0.000 description 1
- 239000003014 ion exchange membrane Substances 0.000 description 1
- 229920005610 lignin Polymers 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000005077 polysulfide Substances 0.000 description 1
- 229920001021 polysulfide Polymers 0.000 description 1
- 150000008117 polysulfides Polymers 0.000 description 1
- 239000003265 pulping liquor Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 229910001415 sodium ion Inorganic materials 0.000 description 1
- 159000000000 sodium salts Chemical class 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 150000003464 sulfur compounds Chemical class 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- NWONKYPBYAMBJT-UHFFFAOYSA-L zinc sulfate Chemical compound [Zn+2].[O-]S([O-])(=O)=O NWONKYPBYAMBJT-UHFFFAOYSA-L 0.000 description 1
- 229960001763 zinc sulfate Drugs 0.000 description 1
- 229910000368 zinc sulfate Inorganic materials 0.000 description 1
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
-
- 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
- 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
-
- 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
-
- 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
Abstract
La présente invention concerne un procédé de récupération et de recyclage de produits chimiques de filage destinés au filage de fibres cellulosiques régénérées à l'aide de solvants de cellulose alcalins pour dissoudre la cellulose, ledit procédé étant caractérisé en ce que des produits chimiques de filage et/ou de lavage de fibre sont traités par électrolyse du sulfate de sodium en leur sein, formant un flux comprenant de l'hydroxyde de sodium et un flux comprenant de l'acide sulfurique, et au moins une partie de l'hydroxyde de sodium formé étant utilisée pour prétraiter la cellulose à des fins de réglage de la viscosité intrinsèque de la cellulose, et/ou en tant qu'aide à l'élimination de l'hémicellulose de la cellulose et/ou pour dissoudre la cellulose dans un solvant à base d'hydroxyde de sodium, et/ou au moins une partie de l'acide sulfurique formé étant utilisée dans une ou plusieurs étapes du lavage de fibres et/ou dans le filage de cellulose et/ou à des fins de régénération de fibres.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP21789259.5A EP4136282A1 (fr) | 2020-04-17 | 2021-04-16 | Procédé de récupération et de recyclage de produits chimiques dans un procédé de fibre de cellulose régénérée |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE2050437 | 2020-04-17 | ||
| SE2050437-9 | 2020-04-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2021211046A1 true WO2021211046A1 (fr) | 2021-10-21 |
Family
ID=78084826
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/SE2021/050349 WO2021211046A1 (fr) | 2020-04-17 | 2021-04-16 | Procédé de récupération et de recyclage de produits chimiques dans un procédé de fibre de cellulose régénérée |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP4136282A1 (fr) |
| WO (1) | WO2021211046A1 (fr) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5147521A (fr) * | 1974-10-21 | 1976-04-23 | Toyo Boseki | |
| EP0096239A2 (fr) * | 1982-06-01 | 1983-12-21 | Allied Corporation | Procédé de dissociation électrodialytique de l'eau pour la transformation de sulfates de métaux alcalins provenant de bains de filage épuisés pour rayonne |
| US4613416A (en) * | 1983-04-29 | 1986-09-23 | Hoechst Aktiengesellschaft | Process for the concentration of sulfuric acid |
| WO2010104458A1 (fr) * | 2009-03-09 | 2010-09-16 | Kiram Ab | Procédé de fabrication de cellulose façonnée associé à un système de récupération d'usine de pâte à papier |
| WO2015000820A1 (fr) * | 2013-07-01 | 2015-01-08 | Kiram Ab | Recyclage d'alcalis lors d'un procédé de filage de cellulose |
| WO2017178532A1 (fr) * | 2016-04-14 | 2017-10-19 | Treetotextile Ab | Procédé de filage de cellulose dissoute |
| WO2017178531A1 (fr) * | 2016-04-14 | 2017-10-19 | Treetotextile Ab | Procédé et système pour la production d'une composition de solution de filage |
| WO2020251463A1 (fr) * | 2019-06-13 | 2020-12-17 | Treetotextile Ab | Fibres produites à partir de déchets cellulosiques recyclés |
-
2021
- 2021-04-16 EP EP21789259.5A patent/EP4136282A1/fr active Pending
- 2021-04-16 WO PCT/SE2021/050349 patent/WO2021211046A1/fr unknown
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5147521A (fr) * | 1974-10-21 | 1976-04-23 | Toyo Boseki | |
| EP0096239A2 (fr) * | 1982-06-01 | 1983-12-21 | Allied Corporation | Procédé de dissociation électrodialytique de l'eau pour la transformation de sulfates de métaux alcalins provenant de bains de filage épuisés pour rayonne |
| US4613416A (en) * | 1983-04-29 | 1986-09-23 | Hoechst Aktiengesellschaft | Process for the concentration of sulfuric acid |
| WO2010104458A1 (fr) * | 2009-03-09 | 2010-09-16 | Kiram Ab | Procédé de fabrication de cellulose façonnée associé à un système de récupération d'usine de pâte à papier |
| WO2015000820A1 (fr) * | 2013-07-01 | 2015-01-08 | Kiram Ab | Recyclage d'alcalis lors d'un procédé de filage de cellulose |
| WO2017178532A1 (fr) * | 2016-04-14 | 2017-10-19 | Treetotextile Ab | Procédé de filage de cellulose dissoute |
| WO2017178531A1 (fr) * | 2016-04-14 | 2017-10-19 | Treetotextile Ab | Procédé et système pour la production d'une composition de solution de filage |
| WO2020251463A1 (fr) * | 2019-06-13 | 2020-12-17 | Treetotextile Ab | Fibres produites à partir de déchets cellulosiques recyclés |
Non-Patent Citations (2)
| Title |
|---|
| MAGNUSSON HANS: "From recovery boiler to integration of a textile fiber plant : Combination of mass balance analysis and chemical engineering", KARLSTAD, 1 January 2015 (2015-01-01), XP055864774 * |
| ÖSTBERG LINDA: "Some Aspects on Pulp Pre-treatment Prior to Viscose Preparation", LICENTIATE THESIS, 1 January 2012 (2012-01-01), XP055864776, ISBN: 978-91-7-063427-7 * |
Also Published As
| Publication number | Publication date |
|---|---|
| EP4136282A1 (fr) | 2023-02-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5423959A (en) | Process and apparatus for the production of sulphuric acid and alkali metal hydroxide | |
| CA2915765C (fr) | Recyclage d'alcalis lors d'un procede de filage de cellulose | |
| CN102011216B (zh) | 一种纺丝塑化浴废液中锌的回收利用方法 | |
| CN103388198B (zh) | 一种双极膜电渗析法从粘胶纤维硫酸钠废液制取酸碱的方法 | |
| CN108927004A (zh) | 一种用双极膜电渗析法使芒硝转换成酸和碱的新工艺 | |
| CN111607802A (zh) | 一种副产硫酸钠制备酸碱的方法 | |
| CN112853550A (zh) | 一种碱液循环使用的处理方法 | |
| CN106315930A (zh) | 一种乙烯废碱液再生回用的方法 | |
| CN106380040A (zh) | 一种纤维素醚生产中废水的处理方法 | |
| CA1269345A (fr) | Methode pour deriver la lignine de ses solutions alcalines | |
| WO2021211046A1 (fr) | Procédé de récupération et de recyclage de produits chimiques dans un procédé de fibre de cellulose régénérée | |
| CN110980847B (zh) | 一种甲烷氯化物生产废碱的处理回收系统及方法 | |
| CN112758957A (zh) | 一种电渗析提纯氢氧化钠浓度的工艺 | |
| CN218910533U (zh) | 一种电解水制氢系统 | |
| CN104150519B (zh) | 一种利用硫酸钠废液制备硫酸钡和碳酸钠的方法 | |
| CN108927003A (zh) | 一种用双极膜电渗析法使芒硝转换成酸和碱的预处理工艺 | |
| CZ283622B6 (cs) | Způsob snižování obsahu chloridových iontů v systému pro regeneraci chemikálií, obsahujících síru a alkalický kov, používaných pri rozvlákňování buničiny | |
| US6579461B2 (en) | Method for preparing or purifying aqueous solutions of a tertiary amino-oxide | |
| Blanco et al. | Electrochemical treatment of black liquor from straw pulping | |
| CN105347578A (zh) | 一种改进的2-萘酚合成工艺 | |
| US5589053A (en) | Electrolysis process for removal of caustic in hemicellulose caustic | |
| CN111661967A (zh) | 利用双膜法回收粘胶纤维生产压榨废液中碱的系统及方法 | |
| CN210945190U (zh) | 一种粘胶纤维生产中含锌废水的资源回收装置 | |
| CN104854263A (zh) | 利用多硫化物制造用电解槽的连续电解方法以及实施该方法的电解装置 | |
| JPH08243358A (ja) | 液体の処理方法 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 21789259 Country of ref document: EP Kind code of ref document: A1 |
|
| ENP | Entry into the national phase |
Ref document number: 2021789259 Country of ref document: EP Effective date: 20221117 |
|
| NENP | Non-entry into the national phase |
Ref country code: DE |