EP0418201A3 - Bleaching wood pulp with enzymes - Google Patents

Bleaching wood pulp with enzymes Download PDF

Info

Publication number
EP0418201A3
EP0418201A3 EP19900810681 EP90810681A EP0418201A3 EP 0418201 A3 EP0418201 A3 EP 0418201A3 EP 19900810681 EP19900810681 EP 19900810681 EP 90810681 A EP90810681 A EP 90810681A EP 0418201 A3 EP0418201 A3 EP 0418201A3
Authority
EP
European Patent Office
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.)
Granted
Application number
EP19900810681
Other versions
EP0418201B1 (en
EP0418201A2 (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
Original Assignee
Sandoz AG
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 filed Critical Sandoz AG
Publication of EP0418201A2 publication Critical patent/EP0418201A2/en
Publication of EP0418201A3 publication Critical patent/EP0418201A3/en
Application granted granted Critical
Publication of EP0418201B1 publication Critical patent/EP0418201B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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)
  • Chemical & Material Sciences (AREA)
  • Biochemistry (AREA)
  • Microbiology (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Enzymes And Modification Thereof (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)
EP90810681A 1989-09-12 1990-09-10 Bleaching wood pulp with enzymes Expired - Lifetime EP0418201B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
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
GB8920596 1989-09-12

Publications (3)

Publication Number Publication Date
EP0418201A2 EP0418201A2 (en) 1991-03-20
EP0418201A3 true EP0418201A3 (en) 1992-09-23
EP0418201B1 EP0418201B1 (en) 1994-12-21

Family

ID=26295910

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90810681A Expired - Lifetime EP0418201B1 (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
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
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
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

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Family Cites Families (5)

* 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
KR880701776A (en) * 1986-09-12 1988-11-05 예안 클라메르 한스 두돌프 하우스 Improvement methods in or associated with organic compounds
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

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
ABSTRACT BULLETIN OF THE INSTITUTE OF PAPER CHEMISTRY. vol. 57, no. 7, January 1987, APPLETON US page 959; HUYNH, V.-B. ET AL.: 'Oxidation of lignin model compounds by a Manganese-dependent enzyme from Phanerochaete chrysosporium as compared with chemically generated Mn(III).' *
JOURNAL OF BIOTECHNOLOGY. vol. 8, no. 2, 1988, AMSTERDAM NL pages 97 - 112; JANSHEKAR, H. ET AL.: 'Cultivation of Phanerochaete chrysosporium and production of lignin peroxidases in submerged stirred tank reactors.' *
WORLD PATENTS INDEX LATEST Week 8744, Derwent Publications Ltd., London, GB; AN 87-310987 & JP-A-62 220 190 (OJI PAPER KK) 28 September 1987 *

Also Published As

Publication number Publication date
DE69015294D1 (en) 1995-02-02
NO178201B (en) 1995-10-30
CA2025079A1 (en) 1991-03-13
PT95273A (en) 1991-05-22
NO903924L (en) 1991-03-13
NO903924D0 (en) 1990-09-10
EP0418201B1 (en) 1994-12-21
ES2067719T3 (en) 1995-04-01
NO178201C (en) 1996-02-07
AU646403B2 (en) 1994-02-24
FI904456A0 (en) 1990-09-10
EP0418201A2 (en) 1991-03-20
AU6232390A (en) 1991-03-21
JPH03104993A (en) 1991-05-01
DE69015294T2 (en) 1995-05-18
BR9004525A (en) 1991-09-10

Similar Documents

Publication Publication Date Title
GB2208277B (en) Cellulosic fibre
EP0453069A3 (en) Drum-type wood chipper
ZA893431B (en) Enzymatic detergent and bleaching composition
JPS6436623A (en) Lignin derivative and its utilization
ZA904441B (en) Enzymatic delignification of lignocellulosic material
EP0271152A3 (en) Enzymatic detergent and bleaching composition
GB8712349D0 (en) Sizing pulp
GB8721528D0 (en) Pulping lignocellulose-containing material
AU6467186A (en) Pulp bleaching
AU559086B2 (en) Bleaching wood pulp
EP0418201A3 (en) Bleaching wood pulp with enzymes
AU2771384A (en) Abosrbent non-delignified wood pulp
AU586298B2 (en) Method in the bleaching of cellulose pulp
GB8705044D0 (en) Cellulose based fibers
NZ235754A (en) Bleaching wood pulp with chlorine dioxide first at ph of 5 to 10 then at ph of 1.9 to 4.2
ZA917491B (en) Pulp bleaching solution.
ZA907277B (en) Bleaching wood pulp with enzymes
AU2413088A (en) Pulp bleaching process
ZA868664B (en) Pulp bleaching
GB8705046D0 (en) Cellulose based fibers
ZA907008B (en) Delignification of lignocellulose-containing fiber
GB8712966D0 (en) Cellulose based fibers
GB9319811D0 (en) Wood pulp bleaching process
AU5779990A (en) Bleaching of lignocellulosic pulp
AU527540B2 (en) Washing cellulosic wood pulp

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19900913

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): CH DE ES FR GB IT LI SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): CH DE ES FR GB IT LI SE

17Q First examination report despatched

Effective date: 19930927

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): CH DE ES FR GB IT LI SE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRE;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.SCRIBED TIME-LIMIT

Effective date: 19941221

REF Corresponds to:

Ref document number: 69015294

Country of ref document: DE

Date of ref document: 19950202

ET Fr: translation filed
REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2067719

Country of ref document: ES

Kind code of ref document: T3

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19950821

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19950828

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19950901

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19950911

Year of fee payment: 6

Ref country code: ES

Payment date: 19950911

Year of fee payment: 6

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 19951213

Year of fee payment: 6

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19960910

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF THE APPLICANT RENOUNCES

Effective date: 19960911

Ref country code: SE

Effective date: 19960911

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Effective date: 19960930

Ref country code: LI

Effective date: 19960930

Ref country code: CH

Effective date: 19960930

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19960910

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19970603

EUG Se: european patent has lapsed

Ref document number: 90810681.8

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 19991007