AU5785096A - Bleaching of cellulose pulp in one and the same stage with a complexing agent, a molybdenum containing substance and an oxidative bleaching agent - Google Patents

Bleaching of cellulose pulp in one and the same stage with a complexing agent, a molybdenum containing substance and an oxidative bleaching agent

Info

Publication number
AU5785096A
AU5785096A AU57850/96A AU5785096A AU5785096A AU 5785096 A AU5785096 A AU 5785096A AU 57850/96 A AU57850/96 A AU 57850/96A AU 5785096 A AU5785096 A AU 5785096A AU 5785096 A AU5785096 A AU 5785096A
Authority
AU
Australia
Prior art keywords
bleaching
agent
containing substance
cellulose pulp
same stage
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
AU57850/96A
Inventor
Roland Agnemo
Curt Hagglund
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.)
Mo och Domsjo AB
Original Assignee
Mo och Domsjo AB
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 Mo och Domsjo AB filed Critical Mo och Domsjo AB
Publication of AU5785096A publication Critical patent/AU5785096A/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
    • D21C9/1026—Other features in bleaching processes
    • D21C9/1042—Use of chelating agents
    • 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
    • D21C9/1026—Other features in bleaching processes
    • D21C9/1036—Use of compounds accelerating or improving the efficiency of the processes
    • 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
    • D21C9/16—Bleaching ; Apparatus therefor with per compounds
    • D21C9/163—Bleaching ; Apparatus therefor with per compounds with peroxides

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
AU57850/96A 1995-05-22 1996-05-13 Bleaching of cellulose pulp in one and the same stage with a complexing agent, a molybdenum containing substance and an oxidative bleaching agent Abandoned AU5785096A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE9501897A SE504340E (en) 1995-05-22 1995-05-22 Process for delignification / bleaching of lignin-containing cellulose pulp
SE9501897 1995-05-22
PCT/SE1996/000619 WO1996037654A1 (en) 1995-05-22 1996-05-13 Bleaching of cellulose pulp in one and the same stage with a complexing agent, a molybdenum containing substance and an oxidative bleaching agent

Publications (1)

Publication Number Publication Date
AU5785096A true AU5785096A (en) 1996-12-11

Family

ID=20398397

Family Applications (1)

Application Number Title Priority Date Filing Date
AU57850/96A Abandoned AU5785096A (en) 1995-05-22 1996-05-13 Bleaching of cellulose pulp in one and the same stage with a complexing agent, a molybdenum containing substance and an oxidative bleaching agent

Country Status (3)

Country Link
AU (1) AU5785096A (en)
SE (1) SE504340E (en)
WO (1) WO1996037654A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CL2009000939A1 (en) 2008-04-30 2010-10-01 Evonik Degussa Gmbh Process to recover molybdate or tungstate from an aqueous solution that comprises a) contacting the solution with a cationized and water-insoluble inorganic carrier material, b) separating the carrier material from molybdate or tungstate, c) contacting it with an aqueous solution with a pH between 6 to 14 and d) separate the saturated material.
DE102010001001A1 (en) * 2010-01-19 2011-07-21 Evonik Degussa GmbH, 45128 Process for delignification and bleaching of pulp
FR2969668B1 (en) * 2010-12-23 2013-01-04 Arkema France METHOD FOR DELIGNIFYING AND WHITENING PAPER PULP USING ACTIVE HYDROGEN PEROXIDE
PT3066257T (en) 2013-11-06 2019-06-04 Evonik Degussa Gmbh Method for delignifying and bleaching pulp
RU2634586C1 (en) * 2016-08-01 2017-10-31 федеральное государственное бюджетное образовательное учреждение высшего образования "Пермский национальный исследовательский политехнический университет" Method of bleaching hardwood sulphate cellulose
FI128968B (en) 2020-03-31 2021-04-15 Chempolis Oy Peroxide bleaching of cellulose pulp
RU2759613C1 (en) * 2021-03-22 2021-11-16 федеральное государственное автономное образовательное учреждение высшего образования "Пермский национальный исследовательский политехнический университет" Method for bleaching bisulphite cellulose

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE420430B (en) * 1978-02-17 1981-10-05 Mo Och Domsjoe Ab PROCEDURE FOR WHEATING AND EXTRACTION OF LIGNOCELLULOSALLY MATERIALS WITH PEROXID CONTAINING BLACKS
US4661205A (en) * 1981-08-28 1987-04-28 Scott Paper Company Method of bleaching lignocellulosic material with peroxide catalyzed with a salt of a metal
FI942968A (en) * 1994-06-20 1995-12-21 Kemira Chemicals Oy Process for delignifying a chemical pulp

Also Published As

Publication number Publication date
SE9501897D0 (en) 1995-05-22
WO1996037654A1 (en) 1996-11-28
SE504340E (en) 1999-08-09
SE9501897L (en) 1996-11-23
SE504340C2 (en) 1997-01-20

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