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NO923601L - PROCEDURE FOR ENZYMATIC WHITE CELLULOSE - Google Patents

PROCEDURE FOR ENZYMATIC WHITE CELLULOSE

Info

Publication number
NO923601L
NO923601L NO92923601A NO923601A NO923601L NO 923601 L NO923601 L NO 923601L NO 92923601 A NO92923601 A NO 92923601A NO 923601 A NO923601 A NO 923601A NO 923601 L NO923601 L NO 923601L
Authority
NO
Norway
Prior art keywords
enzymatic
addition
procedure
reaction
white cellulose
Prior art date
Application number
NO92923601A
Other languages
Norwegian (no)
Other versions
NO923601D0 (en
NO180388B (en
NO180388C (en
Inventor
Hans-Peter Call
Original Assignee
Call Hans Peter
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 Call Hans Peter filed Critical Call Hans Peter
Publication of NO923601D0 publication Critical patent/NO923601D0/en
Publication of NO923601L publication Critical patent/NO923601L/en
Publication of NO180388B publication Critical patent/NO180388B/en
Publication of NO180388C publication Critical patent/NO180388C/en

Links

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
    • D21C9/00—After-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
    • D21C9/10—Bleaching ; Apparatus therefor
    • D21C9/1084—Bleaching ; Apparatus therefor with reducing compounds
    • 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
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C9/00—After-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
    • D21C9/10—Bleaching ; Apparatus therefor
    • D21C9/1084—Bleaching ; Apparatus therefor with reducing compounds
    • D21C9/1089—Bleaching ; Apparatus therefor with reducing compounds with dithionites
    • 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
    • D21C9/00—After-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
    • D21C9/10—Bleaching ; Apparatus therefor
    • D21C9/147—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications
    • 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
    • D21C9/00—After-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
    • D21C9/10—Bleaching ; Apparatus therefor
    • D21C9/147—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications
    • D21C9/153—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications with ozone
    • 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
    • D21C9/00—After-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
    • D21C9/10—Bleaching ; Apparatus therefor
    • D21C9/16—Bleaching ; Apparatus therefor with per compounds
    • D21C9/163—Bleaching ; Apparatus therefor with per compounds with peroxides

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Chemical & Material Sciences (AREA)
  • Biochemistry (AREA)
  • Microbiology (AREA)
  • Paper (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)
  • Immobilizing And Processing Of Enzymes And Microorganisms (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Cosmetics (AREA)
  • Detergent Compositions (AREA)
  • Medicinal Preparation (AREA)
  • Breeding Of Plants And Reproduction By Means Of Culturing (AREA)

Abstract

The present invention concerns a process for the enzymatic bleaching of celluloses in which a) a redox potential in the range between 200 and 500 mV is set with the simultaneous dosed addition of oxidation and reducing agents and the addition of salts and complex formers to provide an aqueous cellulose-containing solution; b) a bleaching reaction is initiated by the addition of lignolytic enzymes; and c) the reaction is maintained for 15 minutes to 12 hours under continuous agitation.
NO923601A 1990-03-20 1992-09-16 Process for enzymatic bleaching of cellulose NO180388C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4008893A DE4008893A1 (en) 1990-03-20 1990-03-20 METHOD FOR ENZYMATIC BLEACHING OF CELLULAS
PCT/EP1991/000540 WO1991014823A1 (en) 1990-03-20 1991-03-19 Process for the enzymatic bleaching of celluloses

Publications (4)

Publication Number Publication Date
NO923601D0 NO923601D0 (en) 1992-09-16
NO923601L true NO923601L (en) 1992-09-16
NO180388B NO180388B (en) 1996-12-30
NO180388C NO180388C (en) 1997-04-09

Family

ID=6402620

Family Applications (1)

Application Number Title Priority Date Filing Date
NO923601A NO180388C (en) 1990-03-20 1992-09-16 Process for enzymatic bleaching of cellulose

Country Status (13)

Country Link
EP (1) EP0447673B1 (en)
JP (1) JPH05505857A (en)
AT (1) ATE119593T1 (en)
AU (1) AU641494B2 (en)
BR (1) BR9106411A (en)
CA (1) CA2078345A1 (en)
DE (2) DE4008893A1 (en)
DK (1) DK0447673T3 (en)
ES (1) ES2072965T3 (en)
FI (1) FI924169L (en)
HU (1) HUT64119A (en)
NO (1) NO180388C (en)
WO (1) WO1991014823A1 (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4137761A1 (en) * 1991-05-17 1992-11-19 Call Hans Peter METHOD FOR DELIGNIFYING LIGNOCELLULOSE-CONTAINING MATERIAL, BLEACHING AND TREATING WASTEWATER BY LACCASE WITH EXTENDED EFFECTIVENESS
FI914780A0 (en) * 1991-10-10 1991-10-10 Valtion Teknillinen FOERFARANDE FOER ENTSYMATISK BEHANDLING AV LIGNOCELLULOSAHALTIGA MATERIAL, I SYNNERHET CELLULOSAMASSOR.
CA2115881C (en) * 1993-02-25 2000-05-23 Michael G. Paice Non-chlorine bleaching of kraft pulp
KR960703428A (en) * 1993-06-16 1996-08-17 한스-페터 카알 Multicomponent Bleaching System
BE1007272A3 (en) * 1993-07-15 1995-05-09 Solvay Method of a pulp bleach.
EP0652321B1 (en) * 1993-11-04 1998-01-21 Morton International, Inc. Chemical pulp bleaching
DE19632623A1 (en) * 1996-08-13 1998-02-19 Consortium Elektrochem Ind Multi-component system for changing, breaking down or bleaching lignin, lignin-containing materials or similar substances as well as methods for their use
ES2171926T3 (en) * 1996-09-11 2002-09-16 Solvay Interox Sa PAPER PASTE WHITENING PROCEDURE.
DE19651099A1 (en) * 1996-12-09 1998-06-10 Consortium Elektrochem Ind Multi-component system for changing, breaking down or bleaching lignin, lignin-containing materials or similar substances as well as methods for their use
DE19820947B4 (en) * 1997-05-12 2005-12-01 Call, Krimhild Enzymatic bleaching system with novel enzyme action enhancing compounds for altering, degrading or bleaching lignin, lignin containing materials, or altering or degrading coal, and methods using the bleaching system
ATE254688T1 (en) 1997-08-14 2003-12-15 Takashi Watanabe CHEMICAL PROCESS FOR DEPOLYMERIZING LIGNIN
JP2002512318A (en) 1998-04-16 2002-04-23 パルプ アンド ペーパー リサーチ インスチチュート オブ カナダ Oxidase method for pulp and dye oxidation

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3110117C2 (en) * 1981-03-16 1983-09-29 Adolf 5340 St. Gilgen Basler Production of cellulose from wood or other lignocellulose-containing plants through microbial degradation of the lignocellulose
US4687741A (en) * 1985-07-15 1987-08-18 Repligen Corporation Novel enzymes which catalyze the degradation and modification of lignin
US4690895A (en) * 1985-07-15 1987-09-01 Repligen Corporation Use of rLDM™ 1-6 and other ligninolytic enzymes in the bleaching of kraft pulp
US4692413A (en) * 1985-07-15 1987-09-08 Repligen Corporation Use of rLDM™ 1-6 and other ligninolytic enzymes for the decolorization of E1 effluent
DE3636208A1 (en) * 1986-10-24 1988-05-05 Call Hans Peter METHOD FOR DELIGNIFYING AND WHICH BLEACHING LIGNICELLULOSE-CONTAINING OR LIGNINAL MATERIAL OR LIGNIN BY ENZYMATIC TREATMENT
ZA894239B (en) * 1988-06-08 1990-03-28 Int Paper Co Enzymatic delignification of lignocellulosic material

Also Published As

Publication number Publication date
DK0447673T3 (en) 1995-07-24
CA2078345A1 (en) 1991-09-21
NO923601D0 (en) 1992-09-16
HU9202982D0 (en) 1993-01-28
DE4008893C2 (en) 1992-09-03
EP0447673B1 (en) 1995-03-08
AU7543291A (en) 1991-10-21
ES2072965T3 (en) 1995-08-01
AU641494B2 (en) 1993-09-23
WO1991014823A1 (en) 1991-10-03
HUT64119A (en) 1993-11-29
EP0447673A1 (en) 1991-09-25
FI924169A0 (en) 1992-09-17
DE59008655D1 (en) 1995-04-13
FI924169A7 (en) 1992-09-17
FI924169L (en) 1992-09-17
NO180388B (en) 1996-12-30
BR9106411A (en) 1993-05-04
NO180388C (en) 1997-04-09
ATE119593T1 (en) 1995-03-15
DE4008893A1 (en) 1991-09-26
JPH05505857A (en) 1993-08-26

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