DK0576470T3 - Fremgangsmåde til reduktion af begproblemer i mekanisk træmasse - Google Patents

Fremgangsmåde til reduktion af begproblemer i mekanisk træmasse

Info

Publication number
DK0576470T3
DK0576470T3 DK92906287.5T DK92906287T DK0576470T3 DK 0576470 T3 DK0576470 T3 DK 0576470T3 DK 92906287 T DK92906287 T DK 92906287T DK 0576470 T3 DK0576470 T3 DK 0576470T3
Authority
DK
Denmark
Prior art keywords
wood pulp
mechanical wood
reducing pitch
pitch problems
pulp
Prior art date
Application number
DK92906287.5T
Other languages
English (en)
Inventor
Olli Jokinen
Christine Hagstroem-Naesi
Original Assignee
Genencor Int Europ
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 Genencor Int Europ filed Critical Genencor Int Europ
Application granted granted Critical
Publication of DK0576470T3 publication Critical patent/DK0576470T3/da

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
    • D21C9/08—Removal of fats, resins, pitch or waxes; Chemical or physical purification, i.e. refining, of crude cellulose by removing non-cellulosic contaminants, optionally combined with bleaching
    • 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

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Chemical & Material Sciences (AREA)
  • Biochemistry (AREA)
  • Microbiology (AREA)
  • Paper (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)
  • Working-Up Tar And Pitch (AREA)
DK92906287.5T 1991-03-22 1992-03-19 Fremgangsmåde til reduktion af begproblemer i mekanisk træmasse DK0576470T3 (da)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI911410A FI93230C (fi) 1991-03-22 1991-03-22 Menetelmä mekaanisen massan pihkavaikeuksien vähentämiseksi

Publications (1)

Publication Number Publication Date
DK0576470T3 true DK0576470T3 (da) 1996-06-03

Family

ID=8532172

Family Applications (1)

Application Number Title Priority Date Filing Date
DK92906287.5T DK0576470T3 (da) 1991-03-22 1992-03-19 Fremgangsmåde til reduktion af begproblemer i mekanisk træmasse

Country Status (11)

Country Link
EP (1) EP0576470B1 (da)
JP (1) JP2588465B2 (da)
AT (1) ATE138130T1 (da)
AU (1) AU660966B2 (da)
CA (1) CA2105159A1 (da)
DE (1) DE69210811T2 (da)
DK (1) DK0576470T3 (da)
ES (1) ES2086732T3 (da)
FI (1) FI93230C (da)
NZ (1) NZ241976A (da)
WO (1) WO1992016687A1 (da)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI953920A7 (fi) * 1993-12-24 1995-08-21 Dsm Ip Assets Bv Alkalitolerantit ksylanaasit
US5961735A (en) * 1995-06-21 1999-10-05 North Carolina State University Method of cleaning papermaking felts with enzymes
FI105833B (fi) 1998-07-13 2000-10-13 Valtion Teknillinen Menetelmä prosessivesien LK-aineiden konsentroimiseksi
US6268328B1 (en) 1998-12-18 2001-07-31 Genencor International, Inc. Variant EGIII-like cellulase compositions
US6579841B1 (en) 1998-12-18 2003-06-17 Genencor International, Inc. Variant EGIII-like cellulase compositions
US7977051B2 (en) 1999-04-10 2011-07-12 Danisco Us Inc. EGIII-like enzymes, DNA encoding such enzymes and methods for producing such enzymes
ES2282020B1 (es) * 2005-07-06 2008-10-01 Consejo Superior Investigaciones Cientificas Sistema enzima-mediador para el control de los depositos de pitch en la fabricacion de pasta y papel.
US9856606B2 (en) * 2011-12-12 2018-01-02 Enzymatic Deinking Technologies, L.L.C. Enzymatic pre-treatment of market pulp to improve fiber drainage and physical properties
JP6531604B2 (ja) * 2015-10-06 2019-06-19 王子ホールディングス株式会社 木質繊維を含む組成物

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2604198B1 (fr) * 1986-09-22 1989-07-07 Du Pin Cellulose Procede de traitement d'une pate papetiere par une solution enzymatique.
DE3636208A1 (de) * 1986-10-24 1988-05-05 Call Hans Peter Verfahren zur delignifizierung und bleichung von lignicellulosehaltigem bzw. ligninhaltigem material bzw. lignin durch enzymatische behandlung
JPH02160997A (ja) * 1988-12-13 1990-06-20 Jujo Paper Co Ltd ピッチトラブル防止法
FI85041C (fi) * 1989-01-16 1992-02-25 Enso Gutzeit Oy Foerfarande foer att bringa pappersmassa pao en pappersmaskins vira.
FI92414B (fi) * 1989-11-27 1994-07-29 Enso Gutzeit Oy Menetelmä massan valmistamiseksi

Also Published As

Publication number Publication date
EP0576470A1 (en) 1994-01-05
EP0576470B1 (en) 1996-05-15
AU1410492A (en) 1992-10-21
CA2105159A1 (en) 1992-09-23
FI911410L (fi) 1992-10-05
FI93230B (fi) 1994-11-30
JPH06506021A (ja) 1994-07-07
NZ241976A (en) 1994-02-25
JP2588465B2 (ja) 1997-03-05
DE69210811T2 (de) 1996-11-28
FI93230C (fi) 1995-03-10
DE69210811D1 (de) 1996-06-20
AU660966B2 (en) 1995-07-13
ES2086732T3 (es) 1996-07-01
ATE138130T1 (de) 1996-06-15
WO1992016687A1 (en) 1992-10-01
FI911410A0 (fi) 1991-03-22

Similar Documents

Publication Publication Date Title
DE3782602D1 (de) Verfahren zur behandlung einer papierpulpe mit einer enzymatischen loesung.
DK0531372T3 (da) Cellulasepræparat omfattende et endoglucanaseenzym
FI935067A7 (fi) Menetelmä lignoselluloosapitoisen materiaalin delignifioimiseksi tai v alkaisemiseksi ja jätevesien käsittelemiseksi lakkaasientsyymien avull a, joilla on parantunut vaikutus
FI852505A7 (fi) Menetelmä sellun ligniininpoistoa ja valkaisua varten.
DE3784515D1 (de) Verfahren zur herstellung von zellstoff aus ligninhaltigen rohstoffen.
FI885951L (fi) Menetelmä pihkaa sisältävän jäteliemen puhdistamiseksi selluloosamassaa valmistettaessa
FI941764L (fi) Menetelmä lignoselluloosapitoisen massan valkaisemiseksi
DK0487557T3 (da) Forbedring af pulpblegning
FI911410A0 (fi) Menetelmä mekaanisen massan pihkavaikeuksien vähentämiseksi
SE9000138D0 (sv) Method for delivering pulp onto the wire of a paper machine
FI924342A7 (fi) Menetelmä, jossa käytetään sellulaasia sulpun vedenpoisto-ominaisuuksien parantamiseen
SE9201441D0 (sv) A method for the use of enzymes in processing and bleaching of paper pulp, and apparatus for use thereof
MY130042A (en) Method for reducing thermal and light-induced brightness reversion in lignin-containing pulps.
FI915310L (fi) Menetelmä puuperäisten kuitususpensioprosessien vesikierron häiriökemikaalien määrän vähentämiseksi
NZ235754A (en) Bleaching wood pulp with chlorine dioxide first at ph of 5 to 10 then at ph of 1.9 to 4.2
FI900544A0 (fi) Foerfarande foer tillverkning av massa.
ID25526A (id) Proses pembuburan kayu yang diperbaiki
SE8405061D0 (sv) Sett att framstella cellulosamassa
DE59402342D1 (de) Verbessertes Verfahren zur Bleiche von Holzstoffen
FI941615A0 (fi) Menetelmä lignoselluloosapitoisten materiaalien, etenkin selluloosamassojen entsymaattiseksi käsittelemiseksi
NO911340L (no) Fremgangsmaate for behandling av returvann ment for fortynning av en papirmasse.
FI895351A7 (fi) Menetelmä happea kuluttavan määrän sekä värin vähentämiseksi jätevedessä, joka on peräisin paperinvalmistukseen tarkoitetun selluloosan tuotannosta
DK0881326T3 (da) Fremgangsmåde til fremstilling af blegede specialcellulosemasser
KR900008109A (ko) 셀룰라아제를 이용한 펄프의 전처리방법
BR9003954A (pt) Processo de pre-branqueamento ou deslignificacao com oxigenio de polpa kraft