EP0433258A1 - Verfahren zur Herstellung von Zellstoff - Google Patents

Verfahren zur Herstellung von Zellstoff Download PDF

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Publication number
EP0433258A1
EP0433258A1 EP90850402A EP90850402A EP0433258A1 EP 0433258 A1 EP0433258 A1 EP 0433258A1 EP 90850402 A EP90850402 A EP 90850402A EP 90850402 A EP90850402 A EP 90850402A EP 0433258 A1 EP0433258 A1 EP 0433258A1
Authority
EP
European Patent Office
Prior art keywords
pulp
lignin
chemical
fibrous product
test
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.)
Withdrawn
Application number
EP90850402A
Other languages
English (en)
French (fr)
Inventor
Marja Vaheri
Helena Ryynänen
Aino Kunnäs
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.)
Stora Enso Oyj
Original Assignee
Enso Gutzeit Oy
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 Enso Gutzeit Oy filed Critical Enso Gutzeit Oy
Publication of EP0433258A1 publication Critical patent/EP0433258A1/de
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • D21H11/08—Mechanical or thermomechanical pulp
    • 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
    • D21C3/00—Pulping cellulose-containing materials
    • D21C3/006—Pulping cellulose-containing materials with compounds not otherwise provided for
    • 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
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution

Definitions

  • the present invention relates to a procedure for the production of mechanical pulp from a fibrous product.
  • the production of mechanical pulp from a fibrous product, such as whole wood, wood chips, chips or refined pulp is mainly implemented by mechanical methods.
  • the production of mechanical pulp is based on the utilization of friction. Energy is transferred to the wood in a compress-release process generating frictional heat which softens the wood so that individual fibres can be released.
  • the object of pulp production is to reduce the wood structure into fibres and to process the fibres so as to make them fit for use as raw material in the manufacture of paper or cardboard.
  • the natural function of wood fibres is exactly the opposite of this object, i.e. to form a supporting structure as strong as possible.
  • the fibres are bound together by an intermediate lamella which mainly consists of lignin.
  • the intermediate lamella is dissolved using chemicals.
  • the fibres can be separated undamaged, but besides lignin, even some of the hemicellulose in the wood is dissolved. Only about half the fibre content of the wood can be retrieved, i.e. the yield is 50%.
  • the lignin is softened by means of water, heat and repeated application of mechanical stress so that the fibres can be "torn" apart. The fibres are disrupted in the process, but the yield is as high as 96-98%.
  • Mechanical pulps are produced by separating the fibres, which are bound together in the wood, either by grinding the wood against a grinding stone or by refining wood chips in disc refiners.
  • the former type of pulp is generally called groundwood pulp and the latter type is called refiner mechanical pulp.
  • refiner mechanical pulp In the more advanced forms of the refining method, heat (TMP) and possibly even chemicals (CTMP) are used.
  • the yield in the mechanical pulp production methods is high. Only a few per cent of the weight of the wood is lost. Therefore, the cost of the wood as per ton of pulp is low. On the other hand, the energy consumption is high, and the energy costs are an important factor. Also, the vigorous mechanical treatment causes fibre damage, reducing the strength of the paper produced from the pulp, which is why the use of mechanical pulp is limited to certain products of a lower quality requirement level.
  • Binding agents are used to strengthen the bonds between the fibres.
  • the strength properties of paper are largely dependent on these bonds.
  • the most commonly used dry strength bonding agent is cationic starch.
  • starch For wood pulps with a high content of fine fibres and fillers, the amount of starch needed is 0.5 - 2%. If starch is used in amounts exceeding this, the operability of the machine as well as the paper quality practically always decline.
  • the object of the present invention is to create a procedure by which the strength properties of mechanical pulp can be improved.
  • the invention is characterized in that the fibrous product is subjected to a chemical and/or enzymatic treatment in which a binding agent is linked with the lignin in the fibrous product.
  • a binding agent is linked with the fibre surface in a chemical reaction, it will improve the strength properties of the fibre. If necessary, the amount of binding agent used can be increased without producing adverse effects.
  • the bond between the binding agent and the fibre is created either by using oxidizing enzymes or oxidizing chemicals producing radicals.
  • the strength properties can be improved with an enzyme treatment in which mechanical pulp is treated in the presence of certain substances, e.g. carbohydrates and proteins, containing hydrophilic groups, with enzymes acting on lignin.
  • Chemical bonding can be successfully achieved in mechanical pulps produced by different methods on condition that lignin or its derivatives are present in the reaction mixture.
  • the purpose of the oxidation treatment is to produce in the lignin of the fibre a radical with which the binding agent is linked by a chemical bond so that the strength properties of the pulp are substantially improved.
  • the substance used for producing a radical is preferably laccase, lignin peroxidase, manganese peroxidase or an oxidizing chemical producing radicals, e.g. chlorine dioxide, ozone or hydrogen peroxide together with ferro ions.
  • suitable enzymes are those produced by white rot fungi, e.g. the laccase produced by the fungus Coriolus versiculum.
  • the pulp temperature during the ezyme treatment may be in the range 10-90°C, preferably 40-70°C, and the pH in the range 2.0-10.0, preferably 4.0-8.0.
  • the redox potential must be relatively high, in enzyme treatment approx. 100-600 mV, preferably 300-500 mV, and in chemical treatment above 200 mV.
  • the mixture was heated to 40°C. Next, starch (Amisol 202) in an amount of 5% was added into the mixture, which was stirred properly. Water-diluted chlorine dioxide in a quantity of 0.5% of the amount of pulp was added into the reaction mixture. The reaction was allowed to continue at 40°C for two hours.
  • test 5 In addition to the test described above (test 5), three reference tests (tests 1, 2 and 3) and two additional tests (tests 4 and 6) were carried out. The results of these are likewise presented in Table 1. The tests were performed as follows:
  • Unbleached TMP pulp was washed with ion-exchanged water and centrifugalized.
  • the pulp was buffered with a Na citrate buffer, diluted to a consistency of 2.5% and heated to 40°C.
  • Starch oxidized, medium cationic
  • Laccase activity 630 U/ml
  • the pulp was stirred carefully.
  • the enzymatic reaction was allowed to continue for two hours at a temperature of 40°C. The pulp was stirred periodically during this time. At the end of the reaction the pulp was washed.
  • test 2 In addition to the test described above (test 2), a reference test (test 1) and two additional tests (tests 3 and 4) were carried out. The results of these are likewise presented in Table 1. The tests were performed as follows:

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Biochemistry (AREA)
  • Microbiology (AREA)
  • Paper (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
EP90850402A 1989-12-12 1990-12-11 Verfahren zur Herstellung von Zellstoff Withdrawn EP0433258A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI895930A FI85389C (fi) 1989-12-12 1989-12-12 Foerfarande foer tillverkning av massa.
FI895930 1989-12-12

Publications (1)

Publication Number Publication Date
EP0433258A1 true EP0433258A1 (de) 1991-06-19

Family

ID=8529501

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90850402A Withdrawn EP0433258A1 (de) 1989-12-12 1990-12-11 Verfahren zur Herstellung von Zellstoff

Country Status (5)

Country Link
EP (1) EP0433258A1 (de)
JP (1) JPH03260188A (de)
CA (1) CA2031972A1 (de)
FI (1) FI85389C (de)
NO (1) NO174167C (de)

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993023606A1 (en) * 1992-05-18 1993-11-25 Novo Nordisk A/S Process for producing paper or paperboard with increased strength from mechanical pulp
US5374555A (en) * 1991-11-26 1994-12-20 The Mead Corporation Protease catalyzed treatments of lignocellulose materials
WO1995007988A1 (en) * 1993-09-17 1995-03-23 Novo Nordisk A/S PURIFIED pH NEUTRAL RHIZOCTONIA LACCASES AND NUCLEIC ACIDS ENCODING SAME
WO1996003546A1 (en) * 1994-07-26 1996-02-08 Novo Nordisk A/S Process for preparing a lignocellulose-based product, and product obtainable by the process
WO1997017492A1 (en) * 1995-11-08 1997-05-15 Novo Nordisk A/S Process for preparing a lignocellulose-based product, and product obtainable by the process
US6187136B1 (en) 1996-02-08 2001-02-13 Novo Nordisk A/S Process for increasing the charge on a lignocellulosic material
WO2001059203A3 (en) * 2000-02-09 2002-01-03 Akzo Nobel Nv Pulping process
WO2001036740A3 (en) * 1999-11-19 2002-02-07 Buckman Labor Inc Paper making processes using enzyme and polymer combinations
WO2003047826A1 (en) * 2001-12-03 2003-06-12 Dynea Chemicals Oy Method of producing compressed layered structures
WO2005061782A1 (en) * 2003-12-23 2005-07-07 Kemira Oyj Method for reducing brightness reversion of mechanical pulps and high-yield chemical pulps
US6939437B1 (en) 1999-11-19 2005-09-06 Buckman Laboratories International, Inc. Paper making processes using enzyme and polymer combinations
WO2006126983A1 (en) 2005-05-04 2006-11-30 Novozymes North America, Inc. Chlorine dioxide treatment compositions and processes
DE102008020642A1 (de) * 2008-04-24 2009-10-29 Kronotec Ag Verfahren zur Herstellung von Holzwerkstoffen und Holzwerkstoffe
US8940133B2 (en) * 2004-04-20 2015-01-27 The Research Foundation For The State University Of New York Product and processes from an integrated forest biorefinery
WO2021191097A1 (en) 2020-03-26 2021-09-30 Metgen Oy Method for making moisture-resistant paper
CN117733977A (zh) * 2024-01-11 2024-03-22 河北犇昂新材料有限公司 一种高效软化疏解木材的改性剂

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1987000564A1 (en) * 1985-07-15 1987-01-29 Repligen Corporation USE OF rLDMTM 1-6 AND OTHER LIGNINOLYTIC ENZYMES
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

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1987000564A1 (en) * 1985-07-15 1987-01-29 Repligen Corporation USE OF rLDMTM 1-6 AND OTHER LIGNINOLYTIC ENZYMES
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

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
BULLETIN OF THE INSTITUTE OF PAPER CHEMISTRY. vol. 52, no. 8, February 1982, APPLETON US page 933 Samuelsson L. et al.: "Influence of some chemical and radiative treatments on strength versus energy relationship in mechanical pulping." *

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5374555A (en) * 1991-11-26 1994-12-20 The Mead Corporation Protease catalyzed treatments of lignocellulose materials
AU665436B2 (en) * 1992-05-18 1996-01-04 Novozymes A/S Process for producing paper or paperboard with increased strength from mechanical pulp
WO1993023606A1 (en) * 1992-05-18 1993-11-25 Novo Nordisk A/S Process for producing paper or paperboard with increased strength from mechanical pulp
US6207009B1 (en) 1992-05-18 2001-03-27 Novo Nordisk Biochem North America, Inc. Method of treating mechanical pulp with a phenol-oxidizing enzyme system
US5480801A (en) * 1993-09-17 1996-01-02 Novo Nordisk A/S Purified PH neutral Rhizoctonia laccases and nucleic acids encoding same
WO1995007988A1 (en) * 1993-09-17 1995-03-23 Novo Nordisk A/S PURIFIED pH NEUTRAL RHIZOCTONIA LACCASES AND NUCLEIC ACIDS ENCODING SAME
WO1996003546A1 (en) * 1994-07-26 1996-02-08 Novo Nordisk A/S Process for preparing a lignocellulose-based product, and product obtainable by the process
US5846788A (en) * 1994-07-26 1998-12-08 Novo Nordisk A/S Process for preparing a lignocellulose-based product, and product obtainable by the process
WO1997017492A1 (en) * 1995-11-08 1997-05-15 Novo Nordisk A/S Process for preparing a lignocellulose-based product, and product obtainable by the process
US6187136B1 (en) 1996-02-08 2001-02-13 Novo Nordisk A/S Process for increasing the charge on a lignocellulosic material
US6939437B1 (en) 1999-11-19 2005-09-06 Buckman Laboratories International, Inc. Paper making processes using enzyme and polymer combinations
WO2001036740A3 (en) * 1999-11-19 2002-02-07 Buckman Labor Inc Paper making processes using enzyme and polymer combinations
WO2001059203A3 (en) * 2000-02-09 2002-01-03 Akzo Nobel Nv Pulping process
WO2003047826A1 (en) * 2001-12-03 2003-06-12 Dynea Chemicals Oy Method of producing compressed layered structures
WO2005061782A1 (en) * 2003-12-23 2005-07-07 Kemira Oyj Method for reducing brightness reversion of mechanical pulps and high-yield chemical pulps
US8940133B2 (en) * 2004-04-20 2015-01-27 The Research Foundation For The State University Of New York Product and processes from an integrated forest biorefinery
US9273431B2 (en) 2004-04-20 2016-03-01 The Research Foundation For The State University Of New York Product and processes from an integrated forest biorefinery
US9683329B2 (en) 2004-04-20 2017-06-20 The Research Foundation For The State University Of New York Methods of producing a paper product
US9945073B2 (en) 2004-04-20 2018-04-17 The Research Foundation For The State University Of New York Methods of producing a paper product
WO2006126983A1 (en) 2005-05-04 2006-11-30 Novozymes North America, Inc. Chlorine dioxide treatment compositions and processes
EP1880053A4 (de) * 2005-05-04 2013-01-23 Novozymes North America Inc Chlordioxidbehandlungszusammensetzungen und verfahren
DE102008020642A1 (de) * 2008-04-24 2009-10-29 Kronotec Ag Verfahren zur Herstellung von Holzwerkstoffen und Holzwerkstoffe
WO2021191097A1 (en) 2020-03-26 2021-09-30 Metgen Oy Method for making moisture-resistant paper
US12325958B2 (en) 2020-03-26 2025-06-10 Metgen Oy Method for making moisture-resistant paper
CN117733977A (zh) * 2024-01-11 2024-03-22 河北犇昂新材料有限公司 一种高效软化疏解木材的改性剂

Also Published As

Publication number Publication date
FI895930A0 (fi) 1989-12-12
CA2031972A1 (en) 1991-06-13
FI85389B (fi) 1991-12-31
FI85389C (fi) 1992-04-10
NO905352L (no) 1991-06-13
NO174167B (no) 1993-12-13
FI895930L (fi) 1991-06-13
JPH03260188A (ja) 1991-11-20
NO905352D0 (no) 1990-12-11
NO174167C (no) 1994-03-23

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