WO1991014823A1 - Verfahren zum enzymatischen bleichen von zellstoffen - Google Patents

Verfahren zum enzymatischen bleichen von zellstoffen Download PDF

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Publication number
WO1991014823A1
WO1991014823A1 PCT/EP1991/000540 EP9100540W WO9114823A1 WO 1991014823 A1 WO1991014823 A1 WO 1991014823A1 EP 9100540 W EP9100540 W EP 9100540W WO 9114823 A1 WO9114823 A1 WO 9114823A1
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WO
WIPO (PCT)
Prior art keywords
nnz
cellulose
bleaching
added
aqueous
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/EP1991/000540
Other languages
German (de)
English (en)
French (fr)
Inventor
Hans-Peter Call
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to FI924169A priority Critical patent/FI924169A7/fi
Priority to BR919106411A priority patent/BR9106411A/pt
Priority to JP91506306A priority patent/JPH05505857A/ja
Publication of WO1991014823A1 publication Critical patent/WO1991014823A1/de
Priority to NO923601A priority patent/NO180388C/no
Anticipated expiration legal-status Critical
Ceased 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
    • 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

Definitions

  • the present invention relates to a process for the enzymatic * bleaching of cellulose.
  • DE-PS 31 10 117 discloses a process for the production of cellulose from wood or other plant fiber materials, in which the lignocellulose is broken down with the help of white rot fungi.
  • the processes using microorganisms have considerable disadvantages. So far it has not been possible to achieve degradation and detachment of the lignin from its companion polymers (cellulose) without simultaneous growth of the microorganisms and without loss of celulose. The simultaneous growth of the fungus leads to very long breakdown times, which can take up to several weeks.
  • the object of the present invention is to provide a process for the enzymatic bleaching of cellulose which no longer has the disadvantages of the biological and chemical bleaching processes.
  • This object is achieved in that a) with the simultaneous addition of oxidizing and reducing agents and addition of salts and complexing agents to an aqueous cellulose-containing solution, a redox potential in the range between 200 and 500 mV is set, b) a bleaching reaction by adding lignolytic enzymes started and c) the reaction is maintained with constant stirring for 15 minutes to 12 hours. This procedure prevents repolymerization of the lignin and makes depolymerization possible.
  • the redox potential is preferably between 250 and 450 mV.
  • it can be determined by means of a redox electrode and kept constant by means of a regulator and an actuator during the entire reaction time by adding oxidizing and reducing agents, salts and phenolic compounds.
  • Hydrogen peroxide, oxygen and ozone are preferably used as the oxidizing agent.
  • Ascorbic acid, dithionite and sodium bisulfite are suitable as reducing agents.
  • Copper (II) sulfate is added to the cellulose-containing aqueous solution as the salt.
  • MndD sulfate, Mn (IID acetate, Fe (II) sulfate, THIID chloride, CedID nitrate and Ce (IV) ammonium nitrate can also be used as salts, and salts with the elements zinc, antimony and lead are also suitable. Possibly.
  • phenolic compounds can be added to the aqueous cellulose-containing solution. Veratryl alcohols have proven particularly useful as such.
  • the aqueous cellulose-containing solution can also contain fatty acids, for example oleic acids. Hem compounds such as hemoglobin and bleaching reagents such as sodium perborate can be added. In addition, post-bleaching with common bleaching agents, such as sodium hypochlorite, O 2 , chlorine dioxide. Ozone. H 2 O 2 and sodium ionite are carried out.
  • fatty acids for example oleic acids. Hem compounds such as hemoglobin and bleaching reagents such as sodium perborate can be added.
  • bleaching reagents such as sodium perborate
  • post-bleaching with common bleaching agents such as sodium hypochlorite, O 2 , chlorine dioxide. Ozone. H 2 O 2 and sodium ionite are carried out.
  • EDTA ethylenediaminetetraacetic acid
  • DTPA Diethylenetriaminepentraacetic acid
  • aqueous cellulose-containing solution Sodium hypochlorite, sodium perborate, detergents, surfactants and polysaccharides such as glucans and xanthans are suitable as such.
  • Lignolytic enzymes are preferably used as enzymes in the method according to the invention. These include phenol oxidases, laocases and peroxidases. The effectiveness of the method can be increased by using pectinase and / or hemicellulases. Particularly suitable lignolytic enzymes are those which are obtained from the white rot fungus Phanerochaete chrysosporium. The use of such enzymes is already known from US Pat. Nos.
  • the pH is usually between 2 and 5.
  • a pH of 3 is particularly preferred.
  • the temperature is 20 to 60 ° C., preferably 40 ° C. If the conditions are observed, the substances mentioned are added Redox potential set from 200 to 500 mV. This is determined by the ratio of the various substances added in the reaction vessel.
  • Redox potential set from 200 to 500 mV. This is determined by the ratio of the various substances added in the reaction vessel.
  • the bleaching process is started by simultaneous dosing of H 2 O 2 and sodium bisulfite solution.
  • the redox potential of approx. 400 mV is maintained. After the process is started, it continues for 2 hours.
  • the process is controlled and regulated by means of a redox electrode and a pump control.

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)
  • Detergent Compositions (AREA)
  • Medicinal Preparation (AREA)
  • Cosmetics (AREA)
  • Breeding Of Plants And Reproduction By Means Of Culturing (AREA)
PCT/EP1991/000540 1990-03-20 1991-03-19 Verfahren zum enzymatischen bleichen von zellstoffen Ceased WO1991014823A1 (de)

Priority Applications (4)

Application Number Priority Date Filing Date Title
FI924169A FI924169A7 (fi) 1990-03-20 1991-03-19 Menetelmä sellun valkaisemiseksi entsymaattisesti
BR919106411A BR9106411A (pt) 1990-03-20 1991-03-19 Processo para branqueamento enzimatico de celuloses
JP91506306A JPH05505857A (ja) 1990-03-20 1991-03-19 セルロースの酵素的漂白方法
NO923601A NO180388C (no) 1990-03-20 1992-09-16 Fremgangsmåte for enzymatisk bleking av cellulose

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4008893A DE4008893A1 (de) 1990-03-20 1990-03-20 Verfahren zum enzymatischen bleichen von zellstoffen
DEP4008893.6 1990-03-20

Publications (1)

Publication Number Publication Date
WO1991014823A1 true WO1991014823A1 (de) 1991-10-03

Family

ID=6402620

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1991/000540 Ceased WO1991014823A1 (de) 1990-03-20 1991-03-19 Verfahren zum enzymatischen bleichen von zellstoffen

Country Status (13)

Country Link
EP (1) EP0447673B1 (https=)
JP (1) JPH05505857A (https=)
AT (1) ATE119593T1 (https=)
AU (1) AU641494B2 (https=)
BR (1) BR9106411A (https=)
CA (1) CA2078345A1 (https=)
DE (2) DE4008893A1 (https=)
DK (1) DK0447673T3 (https=)
ES (1) ES2072965T3 (https=)
FI (1) FI924169A7 (https=)
HU (1) HUT64119A (https=)
NO (1) NO180388C (https=)
WO (1) WO1991014823A1 (https=)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0652321A1 (en) * 1993-11-04 1995-05-10 Morton International, Inc. Chemical pulp bleaching

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4137761A1 (de) * 1991-05-17 1992-11-19 Call Hans Peter Verfahren zur delignifizierung von lignocellulosehaltigem material, bleiche und behandlung von abwaessern mittels laccasen mit erweiteter wirksamkeit
FI914780A0 (fi) * 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
NZ273923A (en) * 1993-06-16 1997-06-24 Call Hans Peter Multicomponent bleaching system for detergents comprising oxidation catalysts, oxidising agents and mediator system
BE1007272A3 (fr) * 1993-07-15 1995-05-09 Solvay Procede pour le blanchiment d'une pate a papier.
DE19632623A1 (de) * 1996-08-13 1998-02-19 Consortium Elektrochem Ind Mehrkomponentensystem zum Verändern, Abbau oder Bleichen von Lignin, ligninhaltigen Materialien oder ähnlichen Stoffen sowie Verfahren zu seiner Anwendung
EP0925401B1 (fr) * 1996-09-11 2002-01-16 SOLVAY INTEROX (Société Anonyme) Procede de blanchiment de pate a papier
DE19651099A1 (de) * 1996-12-09 1998-06-10 Consortium Elektrochem Ind Mehrkomponentensystem zum Verändern, Abbau oder Bleichen von Lignin, ligninhaltigen Materialien oder ähnlichen Stoffen sowie Verfahren zu seiner Anwendung
DE19820947B4 (de) * 1997-05-12 2005-12-01 Call, Krimhild Enzymatisches Bleichsystem mit neuen enzymwirkungsverstärkenden Verbindungen zum Verändern, Abbau oder Bleichen von Lignin, ligninhaltigen Materialien oder Verändern oder Abbau von Kohle sowie Verfahren unter Verwendung des Bleichsystems
EP1025305B1 (en) * 1997-08-14 2003-11-19 Takashi Watanabe Chemical method for lignin depolymerization
AU3401799A (en) 1998-04-16 1999-11-08 Pulp And Paper Research Institute Of Canada Oxidase process for pulp and dye oxidation

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1988003190A1 (fr) * 1986-10-24 1988-05-05 Call Hans Peter Procede de production de cellulose a partir de matieres premieres contenant de la lignine
EP0345715A1 (en) * 1988-06-08 1989-12-13 International Paper Company Enzymatic delignification of lignocellulosic material

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3110117C2 (de) * 1981-03-16 1983-09-29 Adolf 5340 St. Gilgen Basler Herstellung von Cellulose aus Holz oder anderen lignocellulosehaltigen Pflanzen durch mikrobiellen Abbau der Lignocellulose
US4687741A (en) * 1985-07-15 1987-08-18 Repligen Corporation Novel enzymes which catalyze the degradation and modification of lignin
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
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

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1988003190A1 (fr) * 1986-10-24 1988-05-05 Call Hans Peter Procede de production de cellulose a partir de matieres premieres contenant de la lignine
EP0345715A1 (en) * 1988-06-08 1989-12-13 International Paper Company Enzymatic delignification of lignocellulosic material

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PAPIER, DAS. vol. 44, no. 10A, Oktober 1990, DARMSTADT DE Seiten V33 - V41; Call,H.P. et al.: "Einsatz von lignolytischen Enzymen bei der Zellstoff- und Papierherstellung (Biopulping, Biobleaching)." siehe Seite V39 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0652321A1 (en) * 1993-11-04 1995-05-10 Morton International, Inc. Chemical pulp bleaching

Also Published As

Publication number Publication date
JPH05505857A (ja) 1993-08-26
HUT64119A (en) 1993-11-29
EP0447673B1 (de) 1995-03-08
AU641494B2 (en) 1993-09-23
NO923601D0 (no) 1992-09-16
FI924169A0 (fi) 1992-09-17
HU9202982D0 (en) 1993-01-28
NO180388B (no) 1996-12-30
BR9106411A (pt) 1993-05-04
NO923601L (no) 1992-09-16
NO180388C (no) 1997-04-09
DK0447673T3 (da) 1995-07-24
CA2078345A1 (en) 1991-09-21
DE59008655D1 (de) 1995-04-13
DE4008893A1 (de) 1991-09-26
AU7543291A (en) 1991-10-21
ES2072965T3 (es) 1995-08-01
EP0447673A1 (de) 1991-09-25
FI924169L (fi) 1992-09-17
ATE119593T1 (de) 1995-03-15
DE4008893C2 (https=) 1992-09-03
FI924169A7 (fi) 1992-09-17

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