DE69015294D1 - Bleaching wood pulp with enzymes. - Google Patents

Bleaching wood pulp with enzymes.

Info

Publication number
DE69015294D1
DE69015294D1 DE69015294T DE69015294T DE69015294D1 DE 69015294 D1 DE69015294 D1 DE 69015294D1 DE 69015294 T DE69015294 T DE 69015294T DE 69015294 T DE69015294 T DE 69015294T DE 69015294 D1 DE69015294 D1 DE 69015294D1
Authority
DE
Germany
Prior art keywords
enzymes
wood pulp
bleaching wood
bleaching
pulp
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.)
Expired - Fee Related
Application number
DE69015294T
Other languages
German (de)
Other versions
DE69015294T2 (en
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.)
Sandoz AG
Sandoz Patent GmbH
Original Assignee
Sandoz AG
Sandoz Patent GmbH
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 Sandoz AG, Sandoz Patent GmbH filed Critical Sandoz AG
Publication of DE69015294D1 publication Critical patent/DE69015294D1/en
Application granted granted Critical
Publication of DE69015294T2 publication Critical patent/DE69015294T2/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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)
DE1990615294 1989-09-12 1990-09-10 Bleaching wood pulp with enzymes. Expired - Fee Related DE69015294T2 (en)

Applications Claiming Priority (2)

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

Publications (2)

Publication Number Publication Date
DE69015294D1 true DE69015294D1 (en) 1995-02-02
DE69015294T2 DE69015294T2 (en) 1995-05-18

Family

ID=26295910

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1990615294 Expired - Fee Related DE69015294T2 (en) 1989-09-12 1990-09-10 Bleaching wood pulp with enzymes.

Country Status (10)

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

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0691290A (en) * 1991-10-11 1994-04-05 Kobe Steel Ltd Method for treating waste water from pulp bleaching
JP2525704B2 (en) * 1992-03-16 1996-08-21 日本製紙株式会社 Manufacturing method of laminated base paper
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 (en) 1997-01-14 1998-07-15 Neste Oy New fiberboard adhesive
US6372464B1 (en) * 2000-06-19 2002-04-16 Novozymes Biotech, Inc. Polypeptides having peroxidase activity and nucleic acids encoding same
CN105082302A (en) * 2015-03-31 2015-11-25 西南林业大学 Manufacturing method of high-strength chipboard
CN113957737A (en) * 2021-11-10 2022-01-21 安徽鑫光新材料科技股份有限公司 Pollution-free pulping process by straw biological method

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 (en) * 1986-03-18 1994-09-14 新王子製紙株式会社 Lignin degrading enzyme and method for producing the same
AU606081B2 (en) * 1986-09-12 1991-01-31 Sandoz Ag Recombinant ligninase
DE3636208A1 (en) * 1986-10-24 1988-05-05 Call Hans Peter METHOD FOR DELIGNIFYING AND WHICH BLEACHING LIGNICELLULOSE-CONTAINING OR LIGNINAL MATERIAL OR LIGNIN BY ENZYMATIC TREATMENT
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 (en) 1991-05-01
AU646403B2 (en) 1994-02-24
ES2067719T3 (en) 1995-04-01
FI904456A0 (en) 1990-09-10
AU6232390A (en) 1991-03-21
PT95273A (en) 1991-05-22
BR9004525A (en) 1991-09-10
NO178201C (en) 1996-02-07
DE69015294T2 (en) 1995-05-18
NO178201B (en) 1995-10-30
NO903924D0 (en) 1990-09-10
EP0418201B1 (en) 1994-12-21
EP0418201A3 (en) 1992-09-23
EP0418201A2 (en) 1991-03-20
NO903924L (en) 1991-03-13
CA2025079A1 (en) 1991-03-13

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee