IE75202B1 - Process for preparing bleached paper pulp - Google Patents
Process for preparing bleached paper pulpInfo
- 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
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)
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 (de) |
JP (1) | JP2588495B2 (de) |
AT (1) | ATE140283T1 (de) |
AU (1) | AU650962B2 (de) |
CA (1) | CA2066316C (de) |
DE (1) | DE69212051T2 (de) |
ES (1) | ES2089436T3 (de) |
FI (1) | FI921671A (de) |
FR (1) | FR2675518B1 (de) |
IE (1) | IE75202B1 (de) |
NO (1) | NO300225B1 (de) |
NZ (1) | NZ242356A (de) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA2328991A1 (en) | 1998-04-17 | 1999-10-28 | Alberta Research Council, Inc. | Method of producing lignocellulosic pulp from non-woody species |
JP4738662B2 (ja) * | 2001-08-03 | 2011-08-03 | 日本製紙株式会社 | 新聞用紙 |
JP4799774B2 (ja) * | 2001-08-03 | 2011-10-26 | 日本製紙株式会社 | 印刷用紙 |
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 (de) * | 2014-03-25 | 2015-09-30 | Basf Se | Verfahren zur Herstellung von gebleichtem Holzfaserstoff |
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 |
WO2024133473A1 (en) * | 2022-12-21 | 2024-06-27 | Billerud Aktiebolag (Publ) | Preparation of maple wood for ctmp production |
Family Cites Families (7)
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. |
-
1991
- 1991-04-17 FR FR9104737A patent/FR2675518B1/fr not_active Expired - Fee Related
-
1992
- 1992-04-06 NO NO921335A patent/NO300225B1/no not_active IP Right Cessation
- 1992-04-13 IE IE921176A patent/IE75202B1/en not_active IP Right Cessation
- 1992-04-14 AT AT92401044T patent/ATE140283T1/de active
- 1992-04-14 DE DE69212051T patent/DE69212051T2/de not_active Expired - Fee Related
- 1992-04-14 NZ NZ242356A patent/NZ242356A/en unknown
- 1992-04-14 EP EP92401044A patent/EP0509905B1/de not_active Expired - Lifetime
- 1992-04-14 FI FI921671A patent/FI921671A/fi unknown
- 1992-04-14 JP JP4120093A patent/JP2588495B2/ja not_active Expired - Lifetime
- 1992-04-14 ES ES92401044T patent/ES2089436T3/es not_active Expired - Lifetime
- 1992-04-14 AU AU14897/92A patent/AU650962B2/en not_active Ceased
- 1992-04-16 CA CA002066316A patent/CA2066316C/fr not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
CA2066316C (fr) | 1999-09-28 |
CA2066316A1 (fr) | 1992-10-18 |
EP0509905A1 (de) | 1992-10-21 |
AU650962B2 (en) | 1994-07-07 |
JP2588495B2 (ja) | 1997-03-05 |
AU1489792A (en) | 1992-10-22 |
ATE140283T1 (de) | 1996-07-15 |
NZ242356A (en) | 1994-06-27 |
IE921176A1 (en) | 1992-10-21 |
FR2675518A1 (fr) | 1992-10-23 |
FI921671A0 (fi) | 1992-04-14 |
NO921335L (no) | 1992-10-19 |
FR2675518B1 (fr) | 1996-10-18 |
FI921671A (fi) | 1992-10-18 |
JPH06220788A (ja) | 1994-08-09 |
EP0509905B1 (de) | 1996-07-10 |
DE69212051T2 (de) | 1997-01-23 |
ES2089436T3 (es) | 1996-10-01 |
NO921335D0 (no) | 1992-04-06 |
DE69212051D1 (de) | 1996-08-14 |
NO300225B1 (no) | 1997-04-28 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
MM4A | Patent lapsed |