IE75202B1 - Process for preparing bleached paper pulp - Google Patents

Process for preparing bleached paper pulp

Info

Publication number
IE75202B1
IE75202B1 IE921176A IE921176A IE75202B1 IE 75202 B1 IE75202 B1 IE 75202B1 IE 921176 A IE921176 A IE 921176A IE 921176 A IE921176 A IE 921176A IE 75202 B1 IE75202 B1 IE 75202B1
Authority
IE
Ireland
Prior art keywords
chips
solution
process according
soaked
hydrogen peroxide
Prior art date
Application number
IE921176A
Other languages
English (en)
Other versions
IE921176A1 (en
Inventor
Michel Devic
Original Assignee
Atochem Elf Sa
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 Atochem Elf Sa filed Critical Atochem Elf Sa
Publication of IE921176A1 publication Critical patent/IE921176A1/en
Publication of IE75202B1 publication Critical patent/IE75202B1/en

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
    • D21C9/1005—Pretreatment of the pulp, e.g. degassing the pulp
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
    • D21B1/00—Fibrous raw materials or their mechanical treatment
    • D21B1/02—Pretreatment of the raw materials by chemical or physical means
    • D21B1/021—Pretreatment of the raw materials by chemical or physical means by chemical means
    • 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

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Paper (AREA)
  • Combined Devices Of Dampers And Springs (AREA)
  • Electroluminescent Light Sources (AREA)
  • Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
IE921176A 1991-04-17 1992-04-13 Process for preparing bleached paper pulp IE75202B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9104737A FR2675518B1 (fr) 1991-04-17 1991-04-17 Procede de preparation de pate a papier a haut rendement et blanchie, a partir de copeaux de bois.

Publications (2)

Publication Number Publication Date
IE921176A1 IE921176A1 (en) 1992-10-21
IE75202B1 true IE75202B1 (en) 1997-08-27

Family

ID=9411959

Family Applications (1)

Application Number Title Priority Date Filing Date
IE921176A IE75202B1 (en) 1991-04-17 1992-04-13 Process for preparing bleached paper pulp

Country Status (12)

Country Link
EP (1) EP0509905B1 (fr)
JP (1) JP2588495B2 (fr)
AT (1) ATE140283T1 (fr)
AU (1) AU650962B2 (fr)
CA (1) CA2066316C (fr)
DE (1) DE69212051T2 (fr)
ES (1) ES2089436T3 (fr)
FI (1) FI921671A (fr)
FR (1) FR2675518B1 (fr)
IE (1) IE75202B1 (fr)
NO (1) NO300225B1 (fr)
NZ (1) NZ242356A (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1095184B1 (fr) 1998-04-17 2003-10-15 Alberta Research Council, Inc. Procede de production de pate lignocellulosique a partir d'especes non ligneuses
JP4799774B2 (ja) * 2001-08-03 2011-10-26 日本製紙株式会社 印刷用紙
JP4738662B2 (ja) * 2001-08-03 2011-08-03 日本製紙株式会社 新聞用紙
JP4501329B2 (ja) * 2002-03-29 2010-07-14 日本製紙株式会社 グラビア印刷用塗工紙
JP2006123982A (ja) * 2004-10-29 2006-05-18 Kyoraku Co Ltd 薄いパルプモールド製品
CN100357517C (zh) * 2005-10-14 2007-12-26 山东轻工业学院 棉杆蒸煮预处理液
KR20110123184A (ko) 2010-05-06 2011-11-14 바히아 스페셜티 셀룰로스 에스에이 높은 알파 용해 펄프 제조를 위한 방법 및 시스템
CN103334328A (zh) * 2013-06-17 2013-10-02 中国林业科学研究院林产化学工业研究所 利用桉木屑制漂白化机浆的方法
CN103422380B (zh) * 2013-08-15 2015-11-18 齐鲁工业大学 一种针叶木高得率制浆的方法
EP2924166A1 (fr) 2014-03-25 2015-09-30 Basf Se Procédé de fabrication de fibre de bois blanchie
CN103978533B (zh) * 2014-06-09 2016-04-06 山东轻工职业学院 一种拉菲草的漂白工艺
CN109183495B (zh) * 2018-09-26 2020-12-25 湖北夷盟包装材料有限公司 一种使用含铋材料的高透明度透明纸的制备方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
JPS5917240B2 (ja) * 1980-05-30 1984-04-20 三菱瓦斯化学株式会社 機械パルプの過酸化物標白法
AU545847B2 (en) * 1981-02-11 1985-08-01 Mead Corporation, The Production of chemimechanical pump
US4486267A (en) * 1983-11-14 1984-12-04 Mead Corporation Chemithermomechanical pulping process employing separate alkali and sulfite treatments
US5002635A (en) * 1985-09-20 1991-03-26 Scott Paper Company Method for producing pulp using pre-treatment with stabilizers and refining
FR2634233B1 (fr) * 1988-07-12 1995-04-14 Atochem Procede de fabrication de pates chimicothermomecaniques blanchies
FR2659363B1 (fr) * 1990-03-07 1996-04-19 Atochem Procede de preparation de pates a haut rendement blanchies.

Also Published As

Publication number Publication date
AU1489792A (en) 1992-10-22
JPH06220788A (ja) 1994-08-09
FR2675518B1 (fr) 1996-10-18
DE69212051T2 (de) 1997-01-23
FR2675518A1 (fr) 1992-10-23
NO300225B1 (no) 1997-04-28
NO921335L (no) 1992-10-19
EP0509905A1 (fr) 1992-10-21
ES2089436T3 (es) 1996-10-01
NZ242356A (en) 1994-06-27
DE69212051D1 (de) 1996-08-14
FI921671A0 (fi) 1992-04-14
CA2066316C (fr) 1999-09-28
CA2066316A1 (fr) 1992-10-18
IE921176A1 (en) 1992-10-21
NO921335D0 (no) 1992-04-06
EP0509905B1 (fr) 1996-07-10
JP2588495B2 (ja) 1997-03-05
FI921671A (fi) 1992-10-18
ATE140283T1 (de) 1996-07-15
AU650962B2 (en) 1994-07-07

Similar Documents

Publication Publication Date Title
FI63607B (fi) Foerfarande foer framstaellning av cellulosamassor i utbytesomraodet 65-95 %
US4599138A (en) Process for pretreating particulate lignocellulosic material to remove heavy metals
US4248662A (en) Oxygen pulping with recycled liquor
US4160693A (en) Process for the bleaching of cellulose pulp
JPS60110994A (ja) アルカリと亜硫酸塩とにより別個に処理する化学熱機械パルプ製造法
AU650962B2 (en) Process for preparing bleached paper pulp in high yield
EP0494519A1 (fr) Procédé de lessivage à haut rendement
US5298118A (en) Preparation of bleached chemithermomechanical pulp
US4689117A (en) Thermomechanical digestion process for enhancing the brightness of cellulose pulp using bleachants
CA1173604A (fr) Mode de production de pate mecanico-chimique
US6752904B2 (en) Process for removal of lignin from lignocellulosic material
AU692922B2 (en) Method and apparatus for the continuous production of cellulosic pulp
US5338402A (en) Process for preparing a bleached chemithermomechanical pulp
FI93746B (fi) Menetelmä valkaistun kemitermomekaanisen massan valmistamiseksi
NO176726B (no) Fremgangsmåte for fremstilling av kjemotermomekanisk blekede masser
AU778689B2 (en) Pulping process
JPH0215669B2 (fr)
US2882147A (en) Semi-chemical pulping process
JPH0114357B2 (fr)
CA2223987A1 (fr) Methode amelioree pour le blanchiment de la pate de bois

Legal Events

Date Code Title Description
MM4A Patent lapsed