EP0395792A3 - Procedure for the bleaching of pulp - Google Patents

Procedure for the bleaching of pulp Download PDF

Info

Publication number
EP0395792A3
EP0395792A3 EP19890117233 EP89117233A EP0395792A3 EP 0395792 A3 EP0395792 A3 EP 0395792A3 EP 19890117233 EP19890117233 EP 19890117233 EP 89117233 A EP89117233 A EP 89117233A EP 0395792 A3 EP0395792 A3 EP 0395792A3
Authority
EP
European Patent Office
Prior art keywords
bleaching
pulp
oxygen
procedure
enzyme treatment
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
EP19890117233
Other languages
German (de)
French (fr)
Other versions
EP0395792B1 (en
EP0395792A2 (en
Inventor
Marja Vaheri
Kari Miikki
Veikko Jokela
Kimmo Ruohoniemi
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.)
Stora Enso Oyj
Original Assignee
Enso Gutzeit Oy
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=8528357&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0395792(A3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Enso Gutzeit Oy filed Critical Enso Gutzeit Oy
Priority to AT89117233T priority Critical patent/ATE91518T1/en
Publication of EP0395792A2 publication Critical patent/EP0395792A2/en
Publication of EP0395792A3 publication Critical patent/EP0395792A3/en
Application granted granted Critical
Publication of EP0395792B1 publication Critical patent/EP0395792B1/en
Anticipated expiration legal-status Critical
Revoked 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
    • D21C9/12—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds
    • D21C9/14—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds with ClO2 or chlorites
    • D21C9/144—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds with ClO2 or chlorites with ClO2/Cl2 and other bleaching agents in a multistage process
    • 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
    • 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
    • D21C9/1057—Multistage, with compounds cited in more than one sub-group D21C9/10, D21C9/12, D21C9/16
    • 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

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Chemical & Material Sciences (AREA)
  • Biochemistry (AREA)
  • Microbiology (AREA)
  • Paper (AREA)
  • Noodles (AREA)
  • Cereal-Derived Products (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Hard Magnetic Materials (AREA)
  • Bakery Products And Manufacturing Methods Therefor (AREA)
  • Investigating Or Analysing Biological Materials (AREA)
  • Table Devices Or Equipment (AREA)
  • Detergent Compositions (AREA)

Abstract

The invention concerns a procedure for the bleaching of pulp using oxygen as an oxidating bleaching chemical. The essential features of the invention are that oxygen is used in the first oxidation stage of the bleaching process, that the pulp is subjected to enzyme treatment, and that after oxygen bleaching and enzyme treatment, the pulp is washed. According to the invention, the subsequent oxidation stages can be implemented using bleaching chemicals containing chlorine, e.g. chlorine gas and/or chlorine dioxide. The use of enzymes allows partial burning of the washings and enables the amounts of toxic compounds in the spent bleach liquor to be reduced, simultaneously lowering its chemical oxygen demand.
EP89117233A 1989-05-04 1989-09-18 Procedure for the bleaching of pulp Revoked EP0395792B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89117233T ATE91518T1 (en) 1989-05-04 1989-09-18 METHOD OF BLEACHING PULP.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI892151A FI86896B (en) 1989-05-04 1989-05-04 FOERFARANDE FOER BLEKNING AV CELLULOSAMASSA.
FI892151 1989-05-04

Publications (3)

Publication Number Publication Date
EP0395792A2 EP0395792A2 (en) 1990-11-07
EP0395792A3 true EP0395792A3 (en) 1991-01-16
EP0395792B1 EP0395792B1 (en) 1993-07-14

Family

ID=8528357

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89117233A Revoked EP0395792B1 (en) 1989-05-04 1989-09-18 Procedure for the bleaching of pulp

Country Status (8)

Country Link
EP (1) EP0395792B1 (en)
JP (1) JPH02293486A (en)
AT (1) ATE91518T1 (en)
CA (1) CA1339593C (en)
DE (1) DE68907593D1 (en)
ES (1) ES2045320T3 (en)
FI (1) FI86896B (en)
NO (1) NO172355C (en)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PT94984A (en) * 1989-08-14 1991-04-18 Cultor Oy APPROPRIATE PROCESS FOR WHOLE PULP TO OXYGEN
SE465320B (en) * 1990-01-10 1991-08-26 Korsnaes Ab PREPARATIONS SUBMITTING ENZYMATIC DELIGNIFICATION ACTIVITY, MADE TO MAKE THE SAME AND APPLICATIONS THEREOF
US5837515A (en) * 1990-05-16 1998-11-17 Alko-Yhtiot Oy Enzyme preparations and methods for their production
JP2859393B2 (en) * 1990-07-24 1999-02-17 ノボ ノルディスク アクティーゼルスカブ Cellulase and method for producing the same
DE4129739A1 (en) * 1990-09-11 1992-03-12 Sandoz Ag Chlorine-free bleaching of paper pulp
JPH04240287A (en) * 1991-01-21 1992-08-27 Kobe Steel Ltd Bleaching of pulp
FI90670C (en) * 1991-05-02 1994-03-10 Metsae Serla Oy Treatment of alkali-treated pulp for use in papermaking
FI108800B (en) * 1991-05-07 2002-03-28 Iogen Corp A method and apparatus for using an enzyme in the manufacture and bleaching of pulp
US5785811A (en) * 1992-11-09 1998-07-28 The Mead Corporation Process for treating lignocellulosic material with soybean peroxidase in the presence of peroxide
US5935836A (en) * 1994-07-29 1999-08-10 Rohm Enzyme Finland Oy Actinomadura xylanase sequences and methods of use
US6300114B1 (en) 1994-07-29 2001-10-09 Rohm Enzyme Finland Oy Sequences of xylanase and xylanase expression vectors
US5871730A (en) * 1994-07-29 1999-02-16 Universite De Sherbrooke Thermostable xylanase DNA, protein and methods of use
US7816129B2 (en) 1994-07-29 2010-10-19 Ab Enzymes Gmbh Production and secretion of proteins of bacterial origin in filamentous fungi
US6824646B2 (en) 1999-03-23 2004-11-30 Oji Paper Co., Ltd. Process for oxygen bleaching and enzyme treating lignocellulosic pulp with liquid treatment and recovery
CA2301371C (en) * 1999-03-23 2009-09-01 Oji Paper Co., Ltd. Process for bleaching lignocellulose pulp
US6942754B2 (en) 1999-03-23 2005-09-13 Oji Paper Co., Ltd. Process for producing xylooligosaccharide from lignocellulose pulp
AU2002226210A1 (en) 2000-12-22 2002-07-08 Iogen Bio-Products Corporation Alkaline extraction stages comprising xylanase
US9096519B2 (en) 2013-01-10 2015-08-04 California Institute Of Technology Process for the synthesis of ketones from internal alkenes
US9586883B2 (en) 2013-04-19 2017-03-07 California Institute Of Technology Aldehyde-selective wacker-type oxidation of unbiased alkenes
CN111979823A (en) * 2020-08-07 2020-11-24 齐鲁工业大学 Sulfate wood pulp short-process ECF bleaching process X/D-Z-P (X/Z-D-P)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5468402A (en) * 1977-11-09 1979-06-01 Kogyo Gijutsuin Property modification of biochemical pulp
FI81395B (en) * 1988-03-14 1990-06-29 Cultor Oy FOERFARANDE FOER BLEKNING AV CELLULOSAMASSA.
FI90888B (en) * 1989-02-14 1993-12-31 Enso Gutzeit Oy Method for bleaching cellulose pulp

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
ABSTRACTS BULLETIN OF THE INSTITUTE OF PAPER CHEMISTRY, vol. 59, no. 4, October 1988, page 431, abstract no. 4037, Appleton, US; A. KANTELINEN et al.: "Hemicellulases and their potential role in bleaching", & TAPPI INT. PULP BLEACHING CONF. (Orlando) PROCS.: 1-9 (June 5-9, 1988) *
STFI/SPCI, THIRD INTERNATIONAL CONFERENCE BIOTECHNOLOGY IN THE PULP & PAPER INDUSTRY, Stockholm, 16th - 19th June 1986, pages 67-69; L. VIIKARI et al.: "Bleaching with enzymes" *

Also Published As

Publication number Publication date
EP0395792B1 (en) 1993-07-14
JPH02293486A (en) 1990-12-04
FI892151A0 (en) 1989-05-04
ES2045320T3 (en) 1994-01-16
ATE91518T1 (en) 1993-07-15
FI86896B (en) 1992-07-15
NO893716D0 (en) 1989-09-18
CA1339593C (en) 1997-12-23
NO893716L (en) 1990-11-05
EP0395792A2 (en) 1990-11-07
NO172355C (en) 1993-07-07
FI892151A (en) 1990-11-05
DE68907593D1 (en) 1993-08-19
NO172355B (en) 1993-03-29

Similar Documents

Publication Publication Date Title
EP0395792A3 (en) Procedure for the bleaching of pulp
FI890700A (en) Method for bleaching cellulose pulp
ATE48290T1 (en) PROCESSES FOR DELIGNIFICATION AND BLEACHING OF PULP.
CA1334581C (en) Procedure for bleaching cellulose pulp involving the use of combined enzyme treatment and a bleaching process employing chlorine chemicals
CA1335184C (en) Procedure for the bleaching of pulp involving the use of laccase, a lignin-modifying oxidation-reduction enzyme
FI900549A (en) FOERFARANDE FOER BLEKNING AV CELLULOSAMASSA.
NO902206D0 (en) PROCEDURE FOR DELIGNIFICATION OF LIGNOCELLULOSE FIBERS.
ES2038954A6 (en) Bleaching of paper pulp
NO970907L (en) Bleaching of pulp
NO950954L (en) Method of mass bleaching
ES2004389A6 (en) Production of bleached pulp by oxygen/alkali extractant

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

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE CH DE ES FR GB GR IT LI NL SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH DE ES FR GB GR IT LI NL SE

17P Request for examination filed

Effective date: 19910415

17Q First examination report despatched

Effective date: 19911210

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE ES FR GB GR IT LI NL 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 PRESCRIBED TIME-LIMIT;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.

Effective date: 19930714

Ref country code: DE

Effective date: 19930714

Ref country code: CH

Effective date: 19930714

Ref country code: NL

Effective date: 19930714

Ref country code: LI

Effective date: 19930714

REF Corresponds to:

Ref document number: 91518

Country of ref document: AT

Date of ref document: 19930715

Kind code of ref document: T

ET Fr: translation filed
REF Corresponds to:

Ref document number: 68907593

Country of ref document: DE

Date of ref document: 19930819

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

Ref country code: GB

Effective date: 19931014

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

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 19931015

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2045320

Country of ref document: ES

Kind code of ref document: T3

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

PLAB Opposition data, opponent's data or that of the opponent's representative modified

Free format text: ORIGINAL CODE: 0009299OPPO

26 Opposition filed

Opponent name: SANDOZ LTD.

Effective date: 19940412

26 Opposition filed

Opponent name: CALL, HANS-PETER, DR.

Effective date: 19940413

Opponent name: SANDOZ LTD.

Effective date: 19940412

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

Effective date: 19931014

26 Opposition filed

Opponent name: SANDOZ LTD.

Effective date: 19940412

Opponent name: GIST-BROCADES NV

Effective date: 19940414

Opponent name: CALL, HANS-PETER, DR.

Effective date: 19940413

R26 Opposition filed (corrected)

Opponent name: SANDOZ LTD. * 940413 CALL, HANS-PETER, DR. * 94041

Effective date: 19940412

EAL Se: european patent in force in sweden

Ref document number: 89117233.0

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

Ref country code: BE

Payment date: 19950807

Year of fee payment: 7

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

Ref country code: ES

Payment date: 19950905

Year of fee payment: 7

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

Ref country code: SE

Payment date: 19950919

Year of fee payment: 7

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

Ref country code: AT

Payment date: 19950928

Year of fee payment: 7

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

Ref country code: FR

Payment date: 19950929

Year of fee payment: 7

RDAG Patent revoked

Free format text: ORIGINAL CODE: 0009271

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

Free format text: STATUS: PATENT REVOKED

27W Patent revoked

Effective date: 19960513