FI944318A - Menetelmä lehtipuumassan valkaisemiseksi - Google Patents

Menetelmä lehtipuumassan valkaisemiseksi Download PDF

Info

Publication number
FI944318A
FI944318A FI944318A FI944318A FI944318A FI 944318 A FI944318 A FI 944318A FI 944318 A FI944318 A FI 944318A FI 944318 A FI944318 A FI 944318A FI 944318 A FI944318 A FI 944318A
Authority
FI
Finland
Prior art keywords
hardwood pulp
bleaching hardwood
bleaching
pulp
hardwood
Prior art date
Application number
FI944318A
Other languages
English (en)
Swedish (sv)
Other versions
FI944318A0 (fi
Inventor
Stanley Alan Heimburger
Steve Etienne Tremblay
Tommy Yi Meng
Original Assignee
Fmc Corp
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 Fmc Corp filed Critical Fmc Corp
Publication of FI944318A0 publication Critical patent/FI944318A0/fi
Publication of FI944318A publication Critical patent/FI944318A/fi

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
    • D21C9/16—Bleaching ; Apparatus therefor with per compounds
    • D21C9/163—Bleaching ; Apparatus therefor with per compounds with peroxides
    • 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

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
FI944318A 1992-03-18 1994-09-16 Menetelmä lehtipuumassan valkaisemiseksi FI944318A (fi)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CA002063351A CA2063351C (en) 1992-03-18 1992-03-18 Process for bleaching hardwood pulp
PCT/US1993/002041 WO1993019245A1 (en) 1992-03-18 1993-03-05 Process for peroxide bleaching of mechanical pulp

Publications (2)

Publication Number Publication Date
FI944318A0 FI944318A0 (fi) 1994-09-16
FI944318A true FI944318A (fi) 1994-11-16

Family

ID=4149454

Family Applications (1)

Application Number Title Priority Date Filing Date
FI944318A FI944318A (fi) 1992-03-18 1994-09-16 Menetelmä lehtipuumassan valkaisemiseksi

Country Status (11)

Country Link
US (1) US5248389A (fi)
EP (1) EP0630435A4 (fi)
JP (1) JP2711592B2 (fi)
AU (1) AU658505B2 (fi)
BR (1) BR9306105A (fi)
CA (1) CA2063351C (fi)
FI (1) FI944318A (fi)
NO (1) NO302304B1 (fi)
RU (1) RU2095503C1 (fi)
TW (1) TW280844B (fi)
WO (1) WO1993019245A1 (fi)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2712313B1 (fr) * 1993-11-10 1995-12-15 Atochem Elf Sa Procédé de blanchiment d'une pâte à papier à haut rendement par le peroxyde d'hydrogène.
FR2747407B1 (fr) * 1996-04-12 1998-05-07 Atochem Elf Sa Procede de delignification et de blanchiment de pates a papier chimiques
US5902454A (en) * 1996-12-13 1999-05-11 Ciba Specialty Chemicals Corporation Method of whitening lignin-containing paper pulps
US6059927A (en) * 1997-09-23 2000-05-09 Queen's University At Kingston Method of reducing brightness reversion and yellowness (B*) of bleached mechanical wood pulps
US6555020B1 (en) * 1998-10-29 2003-04-29 Den-Mat Corporation Stable tooth whitening gels containing high percentages of hydrogen peroxide
US6743332B2 (en) * 2001-05-16 2004-06-01 Weyerhaeuser Company High temperature peroxide bleaching of mechanical pulps
GB0217197D0 (en) * 2002-07-24 2002-09-04 Dow Corning Method of deinking
US8138106B2 (en) 2005-09-30 2012-03-20 Rayonier Trs Holdings Inc. Cellulosic fibers with odor control characteristics
US7771565B2 (en) * 2006-02-21 2010-08-10 Packaging Corporation Of America Method of pre-treating woodchips prior to mechanical pulping
US20130126109A1 (en) * 2011-11-17 2013-05-23 Buckman Laboratories International, Inc. Silicate Free Refiner Bleaching
US9476014B2 (en) 2013-02-14 2016-10-25 II Joseph M. Galimi Method for cleaning surfaces
CN106012627B (zh) * 2016-05-24 2018-05-04 中国林业科学研究院林产化学工业研究所 一种利用醇类溶剂制备竹材高白度漂白化机浆的方法
CA3122786A1 (en) * 2021-06-18 2022-12-18 Sixring Inc. Temperature-controlled delignification of biomass

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4893701A (fi) * 1972-03-23 1973-12-04
JPS5010425B2 (fi) * 1972-06-06 1975-04-21
SE416481B (sv) * 1977-05-02 1981-01-05 Mo Och Domsjoe Ab Fofarande och anordning for behandling av vedflis for avlegsnande av tungmetaller och harts
US4239643A (en) * 1979-01-02 1980-12-16 Monsanto Company Peroxide stabilization
US4294575A (en) * 1979-01-02 1981-10-13 Monsanto Company Peroxide stabilization
SE436368B (sv) * 1979-01-12 1984-12-03 Sunds Defibrator Sett att framstella blekta, mekaniska, kemimekaniska och halvkemiska massor av lignocellulosahaltiga fibermaterial
JPS564791A (en) * 1979-06-18 1981-01-19 Kogyo Gijutsuin Bleaching of mechanical pulp
SE452346C (sv) * 1982-12-17 1990-03-26 Sunds Defibrator Foerfarande foer peroxidblekning av lignocellulosahaltigt material i tvaa steg
US4486267A (en) * 1983-11-14 1984-12-04 Mead Corporation Chemithermomechanical pulping process employing separate alkali and sulfite treatments
US4614646A (en) * 1984-12-24 1986-09-30 The Dow Chemical Company Stabilization of peroxide systems in the presence of alkaline earth metal ions
US4732650A (en) * 1986-09-15 1988-03-22 The Dow Chemical Company Bleaching of cellulosic pulps using hydrogen peroxide
JPS63203890A (ja) * 1987-02-19 1988-08-23 三菱製紙株式会社 リグノセルロ−ス物質の過酸化水素漂白方法
DE3820160C2 (de) * 1987-06-26 1998-10-08 Clariant Finance Bvi Ltd Konzentriertes Präparat und dessen Verwendung als Stabilisator für alkalische peroxydhaltige Flotten
FR2622221A1 (fr) * 1987-10-22 1989-04-28 Atochem Procede de blanchiment de pates
DE3739655A1 (de) * 1987-11-23 1989-06-01 Sued Chemie Ag Bleichmittelzusatz
US5013404A (en) * 1989-11-15 1991-05-07 The Dow Chemical Company Process for alkaline peroxide bleaching of wood pulp using a quaternary amine as additive
US5118389A (en) * 1990-07-06 1992-06-02 Ici Canada Inc. Two-stage peroxide bleaching process using different amounts of peroxide on different portions of mechanical pulp

Also Published As

Publication number Publication date
JPH07503504A (ja) 1995-04-13
EP0630435A1 (en) 1994-12-28
FI944318A0 (fi) 1994-09-16
EP0630435A4 (en) 1997-10-08
CA2063351A1 (en) 1993-09-19
NO943465L (no) 1994-10-27
AU658505B2 (en) 1995-04-13
CA2063351C (en) 1996-08-13
NO302304B1 (no) 1998-02-16
WO1993019245A1 (en) 1993-09-30
US5248389A (en) 1993-09-28
AU3793793A (en) 1993-10-21
NO943465D0 (no) 1994-09-16
JP2711592B2 (ja) 1998-02-10
RU2095503C1 (ru) 1997-11-10
TW280844B (fi) 1996-07-11
RU94041701A (ru) 1996-07-10
BR9306105A (pt) 1997-11-18

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