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CA2105159A1 - A method for reducing pitch trouble in mechanical pulp - Google Patents

A method for reducing pitch trouble in mechanical pulp

Info

Publication number
CA2105159A1
CA2105159A1 CA002105159A CA2105159A CA2105159A1 CA 2105159 A1 CA2105159 A1 CA 2105159A1 CA 002105159 A CA002105159 A CA 002105159A CA 2105159 A CA2105159 A CA 2105159A CA 2105159 A1 CA2105159 A1 CA 2105159A1
Authority
CA
Canada
Prior art keywords
pulp
activity
enzyme
mechanical pulp
pitch
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.)
Abandoned
Application number
CA002105159A
Other languages
English (en)
French (fr)
Inventor
Olli Jokinen
Christine Hagstrom-Nasi
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.)
Genencor International Europe Oy
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
Publication of CA2105159A1 publication Critical patent/CA2105159A1/en
Abandoned legal-status Critical Current

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)
CA002105159A 1991-03-22 1992-03-19 A method for reducing pitch trouble in mechanical pulp Abandoned CA2105159A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI911410 1991-03-22
FI911410A FI93230C (fi) 1991-03-22 1991-03-22 Menetelmä mekaanisen massan pihkavaikeuksien vähentämiseksi

Publications (1)

Publication Number Publication Date
CA2105159A1 true CA2105159A1 (en) 1992-09-23

Family

ID=8532172

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002105159A Abandoned CA2105159A1 (en) 1991-03-22 1992-03-19 A method for reducing pitch trouble in mechanical pulp

Country Status (11)

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

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0686193B1 (en) * 1993-12-24 2010-08-11 DSM IP Assets B.V. Alkali-tolerant xylanases
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.
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
NZ241976A (en) 1994-02-25
ES2086732T3 (es) 1996-07-01
WO1992016687A1 (en) 1992-10-01
AU660966B2 (en) 1995-07-13
FI911410A0 (fi) 1991-03-22
FI93230B (fi) 1994-11-30
AU1410492A (en) 1992-10-21
FI911410A (fi) 1992-10-05
JP2588465B2 (ja) 1997-03-05
JPH06506021A (ja) 1994-07-07
ATE138130T1 (de) 1996-06-15
DK0576470T3 (da) 1996-06-03
FI93230C (fi) 1995-03-10
EP0576470B1 (en) 1996-05-15
DE69210811T2 (de) 1996-11-28
EP0576470A1 (en) 1994-01-05
DE69210811D1 (de) 1996-06-20

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Legal Events

Date Code Title Description
EEER Examination request
FZDE Discontinued