ES2436636T1 - Procedimiento de fabricación de celulosa microfibrilada - Google Patents

Procedimiento de fabricación de celulosa microfibrilada Download PDF

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Publication number
ES2436636T1
ES2436636T1 ES07709298.9T ES07709298T ES2436636T1 ES 2436636 T1 ES2436636 T1 ES 2436636T1 ES 07709298 T ES07709298 T ES 07709298T ES 2436636 T1 ES2436636 T1 ES 2436636T1
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ES
Spain
Prior art keywords
pulp
microfibrillated cellulose
paper pulp
refining
ecu
Prior art date
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Pending
Application number
ES07709298.9T
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English (en)
Inventor
Tom Lindstrom
Mikael Ankerfors
Gunnar Henriksson
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.)
STFI Packforsk AB
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STFI Packforsk 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 STFI Packforsk AB filed Critical STFI Packforsk AB
Publication of ES2436636T1 publication Critical patent/ES2436636T1/es
Pending legal-status Critical Current

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Classifications

    • 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
    • D21C5/005—Treatment of cellulose-containing material with microorganisms or enzymes
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP 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
    • D21H11/00—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
    • D21H11/16—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only modified by a particular after-treatment
    • D21H11/18—Highly hydrated, swollen or fibrillatable fibres

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  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Biochemistry (AREA)
  • Microbiology (AREA)
  • Paper (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)
  • Cosmetics (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)
  • Medicinal Preparation (AREA)

Abstract

Procedimiento de fabricación de celulosa microfibrilada Un procedimiento de tratamiento de pasta de papel química para la elaboración de celulosa microfibrilada quecomprende las siguientes etapas: a) proporcionar una pasta de papel que contiene hemicelulosa, b) refinar dicha pasta de papel en al menos una etapa y tratar dicha pasta de papel con una o más enzimasdegradadoras de madera a una dosificación de enzima relativamente baja, y c) homogenizar dicha pasta de papel proporcionando así dicha celulosa microfibrilada.

Claims (13)

  1. REIVINDICACIONES
    Procedimiento de fabricación de celulosa microfibrilada
    1. Un procedimiento de tratamiento de pasta de papel química para la elaboración de celulosa microfibrilada que comprende las siguientes etapas:
    a) proporcionar una pasta de papel que contiene hemicelulosa, b) refinar dicha pasta de papel en al menos una etapa y tratar dicha pasta de papel con una o más enzimas degradadoras de madera a una dosificación de enzima relativamente baja, y
    c) homogenizar dicha pasta de papel proporcionando así dicha celulosa microfibrilada.
  2. 2.
    Un procedimiento de acuerdo con la reivindicación 1, en el que dicha pasta de papel es una pasta de papel al sulfito, preferentemente conteniendo pasta de papel de coníferas.
  3. 3.
    Un procedimiento de acuerdo con la reivindicación 1, en el que dicha enzima se usa a una concentración desde 0,1 hasta 500 UCE/g de fibras, preferentemente desde 0,5 hasta 150 UCE/ g de fibras, lo más preferido desde 0,6 hasta 100 UCE/g de fibras, especialmente preferido desde 0,75 hasta 10 UCE/g de fibras.
  4. 4.
    Un procedimiento de acuerdo con la reivindicación 1, en el que dicha enzima es una hemicelulasa o una celulasa
    o una mezcla de las mismas, preferentemente una mezcla de tipo de filtrado de cultivo.
  5. 5.
    Un procedimiento de acuerdo con la reivindicación 4, en el que dicha enzima es una celulasa, preferentemente una celulasa de tipo endoglucanasa, lo más preferido una endoglucanasa de monocomponente.
  6. 6.
    Un procedimiento de acuerdo con la reivindicación 1, en el que la etapa b) comprende refinar dicha pulpa tanto antes como después de dicho tratamiento enzimático.
  7. 7.
    Un procedimiento de acuerdo con la reivindicación 1, en el que la etapa b) comprende refinar dicha pulpa antes de dicho tratamiento enzimático.
  8. 8.
    Un procedimiento de acuerdo con la reivindicación 1, en el que la etapa b) comprende refinar dicha pulpa después de dicho tratamiento enzimático.
  9. 9.
    Un procedimiento de acuerdo con la reivindicación 6, en el que el primer refinado proporciona una pasta de papel con una resistencia a drenaje desde 20 hasta 35 ºSR y dicho segundo refinado proporciona una pasta de papel con una resistencia a drenaje por encima de 70 ºSR.
  10. 10.
    Una celulosa microfibrilada obtenible por un procedimiento de acuerdo con una cualquiera de las reivindicaciones 1-9.
  11. 11.
    Uso de dicha celulosa microfibrilada de acuerdo con la reivindicación 10 en productos alimentarios, productos de papel, materiales compuestos, revestimientos o en modificadores reológicos.
  12. 12.
    Uso de dicha celulosa microfibrilada de acuerdo con la reivindicación 10 en productos cosméticos.
  13. 13.
    Uso de dicha celulosa microfibrilada de acuerdo con la reivindicación 10 en productos farmacéuticos.
    Figura 1
ES07709298.9T 2006-02-08 2007-01-31 Procedimiento de fabricación de celulosa microfibrilada Pending ES2436636T1 (es)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE0600272 2006-02-08
SE0600272 2006-02-08
PCT/SE2007/000082 WO2007091942A1 (en) 2006-02-08 2007-01-31 Method for the manufacturing of microfibrillated cellulose

Publications (1)

Publication Number Publication Date
ES2436636T1 true ES2436636T1 (es) 2014-01-03

Family

ID=38345443

Family Applications (1)

Application Number Title Priority Date Filing Date
ES07709298.9T Pending ES2436636T1 (es) 2006-02-08 2007-01-31 Procedimiento de fabricación de celulosa microfibrilada

Country Status (11)

Country Link
US (1) US8546558B2 (es)
EP (1) EP1984561B1 (es)
JP (2) JP2009526140A (es)
AU (1) AU2007212781B2 (es)
BR (1) BRPI0707255B1 (es)
CA (1) CA2641607C (es)
DE (1) DE07709298T1 (es)
ES (1) ES2436636T1 (es)
NO (1) NO341867B1 (es)
PL (1) PL1984561T3 (es)
WO (1) WO2007091942A1 (es)

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