RU2016122608A - Модифицированная целлюлоза из химического крафт-волокна и способы его изготовления и использования - Google Patents

Модифицированная целлюлоза из химического крафт-волокна и способы его изготовления и использования Download PDF

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RU2016122608A
RU2016122608A RU2016122608A RU2016122608A RU2016122608A RU 2016122608 A RU2016122608 A RU 2016122608A RU 2016122608 A RU2016122608 A RU 2016122608A RU 2016122608 A RU2016122608 A RU 2016122608A RU 2016122608 A RU2016122608 A RU 2016122608A
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cellulose
iron
bleaching
stage
catalyst
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RU2016122608A
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English (en)
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Артур Дж. НОННИ
Чарльз Э. КУРШЕН
Кристофер Майкл СЛОУН
Питер Р. АБИЦ
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ДжиПи СЕЛЛЬЮЛОУС ГМБХ
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    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21CPRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C9/00After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
    • D21C9/10Bleaching ; Apparatus therefor
    • D21C9/16Bleaching ; Apparatus therefor with per compounds
    • D21C9/163Bleaching ; Apparatus therefor with per compounds with peroxides
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00Bandages or dressings; Absorbent pads
    • A61F13/15Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/53Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21CPRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C9/00After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
    • D21C9/001Modification of pulp properties
    • D21C9/002Modification of pulp properties by chemical means; preparation of dewatered pulp, e.g. in sheet or bulk form, containing special additives
    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21CPRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C9/00After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
    • D21C9/10Bleaching ; Apparatus therefor
    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21CPRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C9/00After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
    • D21C9/10Bleaching ; Apparatus therefor
    • D21C9/1026Other features in bleaching processes
    • D21C9/1036Use of compounds accelerating or improving the efficiency of the processes
    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21CPRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C9/00After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
    • D21C9/10Bleaching ; Apparatus therefor
    • D21C9/12Bleaching ; Apparatus therefor with halogens or halogen-containing compounds
    • D21C9/14Bleaching ; Apparatus therefor with halogens or halogen-containing compounds with ClO2 or chlorites
    • D21C9/144Bleaching ; Apparatus therefor with halogens or halogen-containing compounds with ClO2 or chlorites with ClO2/Cl2 and other bleaching agents in a multistage process
    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21HPULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H11/00Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
    • D21H11/02Chemical or chemomechanical or chemothermomechanical pulp
    • D21H11/04Kraft or sulfate pulp
    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21HPULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H11/00Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
    • D21H11/16Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only modified by a particular after-treatment
    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21HPULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H11/00Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
    • D21H11/16Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only modified by a particular after-treatment
    • D21H11/20Chemically or biochemically modified fibres
    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21HPULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H21/00Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
    • D21H21/14Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
    • D21H21/32Bleaching agents
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/29Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2913Rod, strand, filament or fiber
    • Y10T428/298Physical dimension

Claims (22)

  1. ИЗМЕНЕННАЯ ФОРМУЛА ИЗОБРЕТЕНИЯ
  2. 1. Способ получения крафт-целлюлозы, включающий:
  3. переваривание и кислородную делигнификацию целлюлозы мягких пород дерева до числа Каппа от 6 до 14;
  4. отбеливание целлюлозы с использованием многостадийного процесса отбеливания;
  5. и окисления крафт-целлюлозы во время осуществления одной стадии многостадийного процесса отбеливания с использованием перекиси и катализатора, в кислой среде, где многостадийный процесс отбеливания включает, по меньшей мере, одну стадию отбеливания, следующую после стадии окисления.
  6. 2. Способ по п. 1, в котором катализатор выбирают, по меньшей мере, из одного катализатора: меди или железа.
  7. 3. Способ по п.1 или п.2, в котором перекись представляет собой перекись водорода.
  8. 4. Способ по п.3, в котором катализатором является железо.
  9. 5. Способ по п.4, в котором значение pH на стадии окисления находится в диапазоне от около 2 до около 6.
  10. 6. Способ по п.5, в котором катализатор выбирают, по меньшей мере, из одного катализатора: сульфата железа, дихлорида железа, железоаммиачных квасцов, хлорида железа, железоаммониевых квасцов или двойной соли лимоннокислого железа и лимоннокислого аммония.
  11. 7. Способ по п.п.6, в котором катализатором является железо и его добавляют в количестве в диапазоне от около 25 до около 250 ч/млн (ppm), в расчете на сухую массу крафт-целлюлозы.
  12. 8. Способ по п.3, в котором перекись добавляют в количестве от около 0,1% до около 4,0% в расчете на сухую массу крафт-целлюлозы.
  13. 9. Способ по п. 6, в котором значение pH на стадии окисления находится в диапазоне от около 2 до около 5; тем, что катализатор добавляют в количестве в диапазоне от около 25 до около 250 ч/млн (ppm) железа, в расчете на сухую массу крафт-целлюлозы, при концентрации в диапазоне от около 1% до около 15%; и в котором перекисью является перекись водорода и ее добавляют в виде раствора при концентрации от около 1% до около 50% и в количестве в диапазоне от около 0,1% до около 1,5%, в расчете на сухую массу крафт-целлюлозы.
  14. 10. Способ по любому из п.п.1-2 или 4-9, в котором число Каппа после переваривания и окислительной делигнификации целлюлозы мягких пород составляет от 6 до 8.
  15. 11. Способ по п.3, в котором число Каппа после переваривания и окислительной делигнификации целлюлозы мягких пород составляет от 6 до 8.
  16. 12. Способ по п. 1, в котором нет щелочной стадии отбеливания, следующей за двумя стадиями окисления.
  17. 13. Способ по п. 1, в котором целлюлозу дополнительно гидролизуют с помощью кислотной или щелочной обработки после отбеливания.
  18. 14. Способ по п. 1, в котором целлюлозу затем превращают в микрокристаллическую целлюлозу после отбеливания.
  19. 15. Способ по п. 1, в котором целлюлозу затем превращают в эфир целлюлозы путем этерификации после отбеливания.
  20. 16. Способ по п. 15, в котором эфир целлюлозы выбирают из карбоксиметилцеллюлозы, метилцеллюлозы и гидроксипропилцеллюлозы.
  21. 17. Способ по п. 1, в котором целлюлозу затем превращают в эфир целлюлозу путем этерификации после отбеливания.
  22. По доверенности
RU2016122608A 2009-05-28 2016-06-08 Модифицированная целлюлоза из химического крафт-волокна и способы его изготовления и использования RU2016122608A (ru)

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US18200009P 2009-05-28 2009-05-28
US61/182,000 2009-05-28

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RU2011153614/12A RU2549968C2 (ru) 2009-05-28 2010-05-28 Модифицированная целлюлоза из химического крафт-волокна и способы его изготовления и использования
RU2015110138A RU2683654C2 (ru) 2009-05-28 2010-05-28 Модифицированная целлюлоза из химического крафт-волокна и способы его изготовления и использования
RU2014142821A RU2666674C9 (ru) 2009-05-28 2014-10-23 Модифицированная целлюлоза из химического крафт-волокна и способы его изготовления и использования
RU2016122607A RU2016122607A (ru) 2009-05-28 2016-06-08 Модифицированная целлюлоза из химического крафт-волокна и способы его изготовления и использования
RU2016122608A RU2016122608A (ru) 2009-05-28 2016-06-08 Модифицированная целлюлоза из химического крафт-волокна и способы его изготовления и использования

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RU2015110138A RU2683654C2 (ru) 2009-05-28 2010-05-28 Модифицированная целлюлоза из химического крафт-волокна и способы его изготовления и использования
RU2014142821A RU2666674C9 (ru) 2009-05-28 2014-10-23 Модифицированная целлюлоза из химического крафт-волокна и способы его изготовления и использования
RU2016122607A RU2016122607A (ru) 2009-05-28 2016-06-08 Модифицированная целлюлоза из химического крафт-волокна и способы его изготовления и использования

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US (11) US8778136B2 (ru)
EP (2) EP2435629B1 (ru)
JP (7) JP5799009B2 (ru)
KR (6) KR101797942B1 (ru)
CN (2) CN104060491B (ru)
AU (1) AU2010253926B2 (ru)
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CA (2) CA2949518C (ru)
CL (3) CL2011003005A1 (ru)
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