CA2025079A1 - Bleaching wood pulp with enzymes - Google Patents

Bleaching wood pulp with enzymes

Info

Publication number
CA2025079A1
CA2025079A1 CA 2025079 CA2025079A CA2025079A1 CA 2025079 A1 CA2025079 A1 CA 2025079A1 CA 2025079 CA2025079 CA 2025079 CA 2025079 A CA2025079 A CA 2025079A CA 2025079 A1 CA2025079 A1 CA 2025079A1
Authority
CA
Canada
Prior art keywords
pulp
lignin
bleaching
waste water
wood
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
CA 2025079
Other languages
English (en)
French (fr)
Inventor
Beat Gysin
Theophile Griessmann
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
Priority claimed from GB898920596A external-priority patent/GB8920596D0/en
Priority claimed from GB898920595A external-priority patent/GB8920595D0/en
Application filed by Individual filed Critical Individual
Publication of CA2025079A1 publication Critical patent/CA2025079A1/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
    • D21C9/10—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
    • 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)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)
  • Enzymes And Modification Thereof (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)
CA 2025079 1989-09-12 1990-09-11 Bleaching wood pulp with enzymes Abandoned CA2025079A1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB8920596 1989-09-12
GB898920596A GB8920596D0 (en) 1989-09-12 1989-09-12 Improvements in or relating to organic compounds
GB8920595 1989-09-12
GB898920595A GB8920595D0 (en) 1989-09-12 1989-09-12 Improvements in or relating to organic compounds

Publications (1)

Publication Number Publication Date
CA2025079A1 true CA2025079A1 (en) 1991-03-13

Family

ID=26295910

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2025079 Abandoned CA2025079A1 (en) 1989-09-12 1990-09-11 Bleaching wood pulp with enzymes

Country Status (10)

Country Link
EP (1) EP0418201B1 (pt)
JP (1) JPH03104993A (pt)
AU (1) AU646403B2 (pt)
BR (1) BR9004525A (pt)
CA (1) CA2025079A1 (pt)
DE (1) DE69015294T2 (pt)
ES (1) ES2067719T3 (pt)
FI (1) FI904456A0 (pt)
NO (1) NO178201C (pt)
PT (1) PT95273A (pt)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0691290A (ja) * 1991-10-11 1994-04-05 Kobe Steel Ltd パルプ漂白廃水の処理方法
JP2525704B2 (ja) * 1992-03-16 1996-08-21 日本製紙株式会社 積層板用原紙の製造法
US5369024A (en) * 1992-03-25 1994-11-29 The United States Of America As Represented By The Secretary Of Agriculture Xylanase from streptomyces roseiscleroticus NRRL-11019 for removing color from kraft wood pulps
US5498534A (en) * 1992-03-25 1996-03-12 The United States Of America As Represented By The Secretary Of Agriculture Method of removing color from wood pulp using xylanase from streptomyces roseiscleroticus NRRL B-11019
FI970158A (fi) 1997-01-14 1998-07-15 Neste Oy Uusi kuitulevyliima
US6372464B1 (en) * 2000-06-19 2002-04-16 Novozymes Biotech, Inc. Polypeptides having peroxidase activity and nucleic acids encoding same
CN105082302A (zh) * 2015-03-31 2015-11-25 西南林业大学 一种高强度刨花板的制备方法
CN113957737A (zh) * 2021-11-10 2022-01-21 安徽鑫光新材料科技股份有限公司 一种秸秆生物法无污染制浆工艺

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
JPH0671424B2 (ja) * 1986-03-18 1994-09-14 新王子製紙株式会社 リグニン分解酵素およびその製造方法
AU606081B2 (en) * 1986-09-12 1991-01-31 Sandoz Ag Recombinant ligninase
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
US4830708A (en) * 1987-11-30 1989-05-16 Pulp And Paper Research Institute Of Canada Direct biological bleaching of hardwood kraft pulp with the fungus Coriolus versicolor
ZA894239B (en) * 1988-06-08 1990-03-28 Int Paper Co Enzymatic delignification of lignocellulosic material

Also Published As

Publication number Publication date
JPH03104993A (ja) 1991-05-01
AU646403B2 (en) 1994-02-24
ES2067719T3 (es) 1995-04-01
FI904456A0 (fi) 1990-09-10
DE69015294D1 (de) 1995-02-02
AU6232390A (en) 1991-03-21
PT95273A (pt) 1991-05-22
BR9004525A (pt) 1991-09-10
NO178201C (no) 1996-02-07
DE69015294T2 (de) 1995-05-18
NO178201B (no) 1995-10-30
NO903924D0 (no) 1990-09-10
EP0418201B1 (en) 1994-12-21
EP0418201A3 (en) 1992-09-23
EP0418201A2 (en) 1991-03-20
NO903924L (no) 1991-03-13

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Legal Events

Date Code Title Description
FZDE Dead