EA201990396A1 - Способ регенерации целлюлозных волокон из использованного впитывающего изделия - Google Patents
Способ регенерации целлюлозных волокон из использованного впитывающего изделияInfo
- Publication number
- EA201990396A1 EA201990396A1 EA201990396A EA201990396A EA201990396A1 EA 201990396 A1 EA201990396 A1 EA 201990396A1 EA 201990396 A EA201990396 A EA 201990396A EA 201990396 A EA201990396 A EA 201990396A EA 201990396 A1 EA201990396 A1 EA 201990396A1
- Authority
- EA
- Eurasian Patent Office
- Prior art keywords
- cellulosic fibers
- treated
- soiling
- product
- inactivated
- Prior art date
Links
- 239000000835 fiber Substances 0.000 title abstract 5
- 229920002678 cellulose Polymers 0.000 title 1
- 239000001913 cellulose Substances 0.000 title 1
- 230000001105 regulatory effect Effects 0.000 title 1
- 229920000247 superabsorbent polymer Polymers 0.000 abstract 5
- 239000002250 absorbent Substances 0.000 abstract 3
- 230000002745 absorbent Effects 0.000 abstract 3
- 150000007524 organic acids Chemical class 0.000 abstract 2
- 239000007864 aqueous solution Substances 0.000 abstract 1
- 239000003153 chemical reaction reagent Substances 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 230000001590 oxidative effect Effects 0.000 abstract 1
- 230000001172 regenerating effect Effects 0.000 abstract 1
- 239000000243 solution Substances 0.000 abstract 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
- B09B3/0075—Disposal of medical waste
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
- B09B3/40—Destroying solid waste or transforming solid waste into something useful or harmless involving thermal treatment, e.g. evaporation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B5/00—Operations not covered by a single other subclass or by a single other group in this subclass
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
- B29B17/02—Separating plastics from other materials
-
- 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
-
- 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
-
- 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
- C08J11/10—Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation
- C08J11/16—Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation by treatment with inorganic material
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
- D21B1/00—Fibrous raw materials or their mechanical treatment
- D21B1/02—Pretreatment of the raw materials by chemical or physical means
- D21B1/021—Pretreatment of the raw materials by chemical or physical means by chemical means
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
- D21B1/00—Fibrous raw materials or their mechanical treatment
- D21B1/02—Pretreatment of the raw materials by chemical or physical means
- D21B1/026—Separating fibrous materials from waste
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C5/00—Other processes for obtaining cellulose, e.g. cooking cotton linters ; Processes characterised by the choice of cellulose-containing starting materials
- D21C5/02—Working-up waste paper
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C5/00—Other processes for obtaining cellulose, e.g. cooking cotton linters ; Processes characterised by the choice of cellulose-containing starting materials
- D21C5/02—Working-up waste paper
- D21C5/022—Chemicals therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/48—Wearing apparel
- B29L2031/4871—Underwear
- B29L2031/4878—Diapers, napkins
-
- 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
- C08J2300/00—Characterised by the use of unspecified polymers
- C08J2300/14—Water soluble or water swellable polymers, e.g. aqueous gels
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
-
- 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
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/141—Feedstock
- Y02P20/143—Feedstock the feedstock being recycled material, e.g. plastics
-
- 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
-
- 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
- Y02W30/64—Paper recycling
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Organic Chemistry (AREA)
- Polymers & Plastics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Mechanical Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Toxicology (AREA)
- Paper (AREA)
- Processing Of Solid Wastes (AREA)
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
- Chemical Or Physical Treatment Of Fibers (AREA)
Abstract
Описан способ регенерации целлюлозных волокон, имеющих небольшое повреждение, из использованного впитывающего изделия, которое содержит целлюлозные волокна и супервпитывающий полимер. Использованное впитывающее изделие обрабатывают при температуре, большей или равной 80°C, раствором органической кислоты, имеющим pH не выше 2,5, и супервпитывающий полимер инактивируется. Предпочтительно, если целлюлозные волокна и инактивированный супервпитывающий полимер отделяются от использованного впитывающего изделия после обработки водным раствором органической кислоты и затем смесь, включающую отделенные целлюлозные волокна и инактивированный супервпитывающий полимер, обрабатывают окислительным реагентом, инактивированный супервпитывающий полимер разлагается, уменьшается его молекулярная масса, и он солюбилизируется.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2016154974A JP6632494B2 (ja) | 2016-08-05 | 2016-08-05 | 使用済み吸収性物品からパルプ繊維を回収する方法 |
PCT/JP2017/021541 WO2018025501A1 (ja) | 2016-08-05 | 2017-06-09 | 使用済み吸収性物品からパルプ繊維を回収する方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
EA201990396A1 true EA201990396A1 (ru) | 2019-07-31 |
EA036860B1 EA036860B1 (ru) | 2020-12-29 |
Family
ID=61074010
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EA201990396A EA036860B1 (ru) | 2016-08-05 | 2017-06-09 | Способ регенерации целлюлозных волокон из использованного впитывающего изделия |
Country Status (6)
Country | Link |
---|---|
US (1) | US10927496B2 (ru) |
EP (1) | EP3495553A4 (ru) |
JP (1) | JP6632494B2 (ru) |
CN (1) | CN109563682A (ru) |
EA (1) | EA036860B1 (ru) |
WO (1) | WO2018025501A1 (ru) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6580116B2 (ja) * | 2017-12-20 | 2019-09-25 | ユニ・チャーム株式会社 | リサイクルパルプ繊維の製造方法 |
JP7045980B2 (ja) * | 2018-11-09 | 2022-04-01 | ユニ・チャーム株式会社 | リサイクルパルプ繊維を製造する方法、及びリサイクルパルプ繊維 |
EP3862484B1 (en) * | 2018-11-09 | 2024-05-15 | Unicharm Corporation | Method for producing recycled pulp fibers, recycled pulp fibers, and use for ozone |
EP3957679A4 (en) | 2019-04-16 | 2023-01-11 | Sanyo Chemical Industries, Ltd. | METHOD FOR PRODUCTION OF WATER-ABSORBENT RESIN PARTICLES |
JP6771633B1 (ja) * | 2019-05-30 | 2020-10-21 | ユニ・チャーム株式会社 | 使用済み吸収性物品由来の高吸水性ポリマーを再生する方法及び使用済み吸収性物品由来のリサイクル高吸水性ポリマー |
JP7234054B2 (ja) * | 2019-06-28 | 2023-03-07 | 花王株式会社 | リサイクル成形体及びリサイクル成形体の製造方法 |
EP3875120B1 (en) | 2020-03-05 | 2023-09-13 | Ontex BV | Method of sterilizing absorbent articles |
JP2023020704A (ja) * | 2021-07-30 | 2023-02-09 | ユニ・チャーム株式会社 | 使用済み吸収性物品の前処理方法及び前処理装置 |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0558512B1 (en) * | 1990-10-29 | 1997-01-08 | Knowaste Technologies Inc. | Treatment of absorbent sanitary paper products |
JP3091251B2 (ja) * | 1991-04-15 | 2000-09-25 | 株式会社日本触媒 | 吸水性製品からのパルプ回収方法 |
JP3840385B2 (ja) * | 2001-07-31 | 2006-11-01 | 株式会社大貴 | 汚れが付着している衛生用品からのその素材の回収方法 |
JP2003225645A (ja) * | 2002-02-05 | 2003-08-12 | Tomio Wada | 使用済み吸収性物品からのパルプ成分および吸水性ポリマーの分離回収法 |
FR2910027B1 (fr) * | 2006-12-13 | 2009-11-06 | Itt Mfg Enterprises Inc | Procede de blanchiment des pates papeteries chimiques par traitement final a l'ozone a haute temperature |
JP5676844B2 (ja) | 2008-09-30 | 2015-02-25 | 株式会社サムズ | 使用済み紙オムツの処理方法 |
JP2012066156A (ja) * | 2008-12-22 | 2012-04-05 | Kazutoshi Noguchi | 使用済みとなった汚物処理用品の処分方法 |
JP6061875B2 (ja) * | 2013-04-10 | 2017-01-18 | ユニ・チャーム株式会社 | 使用済み衛生用品からパルプ繊維を回収する方法 |
JP6038001B2 (ja) * | 2013-10-30 | 2016-12-07 | ユニ・チャーム株式会社 | 使用済み衛生用品からリサイクルパルプを製造する方法 |
JP6199243B2 (ja) * | 2014-06-12 | 2017-09-20 | ユニ・チャーム株式会社 | 使用済み衛生用品からリサイクルパルプを製造する方法 |
JP6646924B2 (ja) * | 2014-09-22 | 2020-02-14 | ユニ・チャーム株式会社 | 使用済み衛生用品からパルプ繊維を回収する方法およびその方法により得られる再生パルプ |
JP6203158B2 (ja) * | 2014-10-15 | 2017-09-27 | ユニ・チャーム株式会社 | 使用済み衛生用品からリサイクルパルプを製造する方法 |
JP6161669B2 (ja) | 2014-12-26 | 2017-07-12 | ユニ・チャーム株式会社 | 使用済み吸収性物品のリサイクル方法 |
WO2016103985A1 (ja) * | 2014-12-26 | 2016-06-30 | ユニ・チャーム株式会社 | 使用済み吸収性物品のリサイクル方法 |
-
2016
- 2016-08-05 JP JP2016154974A patent/JP6632494B2/ja active Active
-
2017
- 2017-06-09 US US16/321,829 patent/US10927496B2/en active Active
- 2017-06-09 EP EP17836608.4A patent/EP3495553A4/en active Pending
- 2017-06-09 WO PCT/JP2017/021541 patent/WO2018025501A1/ja unknown
- 2017-06-09 EA EA201990396A patent/EA036860B1/ru not_active IP Right Cessation
- 2017-06-09 CN CN201780048047.7A patent/CN109563682A/zh active Pending
Also Published As
Publication number | Publication date |
---|---|
WO2018025501A1 (ja) | 2018-02-08 |
JP2018021283A (ja) | 2018-02-08 |
US10927496B2 (en) | 2021-02-23 |
EA036860B1 (ru) | 2020-12-29 |
JP6632494B2 (ja) | 2020-01-22 |
US20190169795A1 (en) | 2019-06-06 |
EP3495553A4 (en) | 2019-08-28 |
EP3495553A1 (en) | 2019-06-12 |
CN109563682A (zh) | 2019-04-02 |
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