DK0401149T3 - Fremgangsmåde til delignificering af kemisk pulpmasse - Google Patents
Fremgangsmåde til delignificering af kemisk pulpmasseInfo
- Publication number
- DK0401149T3 DK0401149T3 DK90610030.0T DK90610030T DK0401149T3 DK 0401149 T3 DK0401149 T3 DK 0401149T3 DK 90610030 T DK90610030 T DK 90610030T DK 0401149 T3 DK0401149 T3 DK 0401149T3
- Authority
- DK
- Denmark
- Prior art keywords
- pulp
- delignification
- stage
- chemical
- 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
- D21C3/00—Pulping cellulose-containing materials
- D21C3/04—Pulping cellulose-containing materials with acids, acid salts or acid anhydrides
- D21C3/06—Pulping cellulose-containing materials with acids, acid salts or acid anhydrides sulfur dioxide; sulfurous acid; bisulfites sulfites
- D21C3/10—Pulping cellulose-containing materials with acids, acid salts or acid anhydrides sulfur dioxide; sulfurous acid; bisulfites sulfites magnesium bisulfite
-
- 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
- D21C9/1057—Multistage, with compounds cited in more than one sub-group D21C9/10, D21C9/12, D21C9/16
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
- Compounds Of Unknown Constitution (AREA)
- Detergent Compositions (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/354,522 US5011572A (en) | 1989-05-19 | 1989-05-19 | Two stage process for the oxygen delignification of lignocellulosic fibers with peroxide reinforcement in the first stage |
Publications (1)
Publication Number | Publication Date |
---|---|
DK0401149T3 true DK0401149T3 (da) | 1994-05-16 |
Family
ID=23393705
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DK90610030.0T DK0401149T3 (da) | 1989-05-19 | 1990-05-04 | Fremgangsmåde til delignificering af kemisk pulpmasse |
Country Status (13)
Country | Link |
---|---|
US (1) | US5011572A (es) |
EP (1) | EP0401149B1 (es) |
JP (1) | JPH0314687A (es) |
KR (1) | KR930002072B1 (es) |
AT (1) | ATE104381T1 (es) |
BR (1) | BR9002337A (es) |
CA (1) | CA2014563C (es) |
DE (1) | DE69008042T2 (es) |
DK (1) | DK0401149T3 (es) |
ES (1) | ES2050992T3 (es) |
FI (1) | FI99152C (es) |
MX (1) | MX166744B (es) |
NO (1) | NO176810C (es) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5211809A (en) * | 1991-05-21 | 1993-05-18 | Air Products And Chemicals, Inc,. | Dye removal in oxygen color stripping of secondary fibers |
US5302244A (en) * | 1992-02-18 | 1994-04-12 | Domtar Inc. | Oxygen delignification of waste cellulosic paper products |
CA2082557C (en) * | 1992-02-24 | 1997-03-11 | Charles W. Hankins | Integrated pulping process of waste paper yielding tissue-grade paper fibers |
US6231718B1 (en) | 1992-02-28 | 2001-05-15 | International Paper Company | Two phase ozone and oxygen pulp treatment |
US5503709A (en) * | 1994-07-27 | 1996-04-02 | Burton; Steven W. | Environmentally improved process for preparing recycled lignocellulosic materials for bleaching |
CN1203644A (zh) * | 1995-12-07 | 1998-12-30 | 贝洛特工艺技术公司 | 中等稠度纸浆的氧化去木质作用 |
BE1011129A4 (fr) * | 1997-04-25 | 1999-05-04 | Solvay Interox | Procede continu de delignification et/ou de blanchiment de pate a papier chimique vierge ou recyclee. |
US7747434B2 (en) * | 2000-10-24 | 2010-06-29 | Speech Conversion Technologies, Inc. | Integrated speech recognition, closed captioning, and translation system and method |
US11078624B2 (en) | 2018-09-21 | 2021-08-03 | King Abdulaziz University | Method for isolating alpha cellulose from lignocellulosic materials |
US11591751B2 (en) | 2019-09-17 | 2023-02-28 | Gpcp Ip Holdings Llc | High efficiency fiber bleaching process |
US20220213648A1 (en) | 2021-01-06 | 2022-07-07 | Gpcp Ip Holdings Llc | Oxygen Treatment of High Kappa Fibers |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3719552A (en) * | 1971-06-18 | 1973-03-06 | American Cyanamid Co | Bleaching of lignocellulosic materials with oxygen in the presence of a peroxide |
CA973661A (en) * | 1972-09-29 | 1975-09-02 | Pulp And Paper Research Institute Of Canada | Press alkaline extraction of cellulosic pulp |
US4087318A (en) * | 1974-03-14 | 1978-05-02 | Mo Och Domsjo Aktiebolag | Oxygen-alkali delignification of lignocellulosic material in the presence of a manganese compound |
JPS5277202A (en) * | 1977-01-08 | 1977-06-29 | Jisuke Hayashi | Process for refining pulp |
FR2416297A1 (fr) * | 1978-01-31 | 1979-08-31 | Europeen Cellulose | Procede anti-polluant de blanchiment de pate a papier |
US4259150A (en) * | 1978-12-18 | 1981-03-31 | Kamyr Inc. | Plural stage mixing and thickening oxygen bleaching process |
FR2457339A1 (fr) * | 1979-05-25 | 1980-12-19 | Interox | Procede pour la delignification et le blanchiment de pates cellulosiques chimiques et semi-chimiques |
US4298427A (en) * | 1979-06-15 | 1981-11-03 | Weyerhaeuser Company | Method and apparatus for intimately mixing oxygen and pulp while using an alkali to extract bleaching by-products |
DE3207157C1 (de) * | 1982-02-27 | 1983-06-09 | Degussa Ag, 6000 Frankfurt | Verfahren zur Herstellung von halbgebleichten Zellstoffen |
FR2566015B1 (fr) * | 1984-06-15 | 1986-08-29 | Centre Tech Ind Papier | Procede de blanchiment de pate mecanique par le peroxyde d'hydrogene |
US4568420B1 (en) * | 1984-12-03 | 1999-03-02 | Int Paper Co | Multi-stage bleaching process including an enhanced oxidative extraction stage |
CA1249402A (en) * | 1984-12-21 | 1989-01-31 | Pulp And Paper Research Institute Of Canada | Multistage brightening of high yield and ultra high- yield wood pulps |
US4806203A (en) * | 1985-02-14 | 1989-02-21 | Elton Edward F | Method for alkaline delignification of lignocellulosic fibrous material at a consistency which is raised during reaction |
JPH0768675B2 (ja) * | 1986-10-13 | 1995-07-26 | 新王子製紙株式会社 | セルロ−スパルプの酸素による脱リグニン、漂白方法 |
-
1989
- 1989-05-19 US US07/354,522 patent/US5011572A/en not_active Expired - Fee Related
-
1990
- 1990-04-11 CA CA002014563A patent/CA2014563C/en not_active Expired - Fee Related
- 1990-05-04 DE DE69008042T patent/DE69008042T2/de not_active Expired - Fee Related
- 1990-05-04 EP EP90610030A patent/EP0401149B1/en not_active Expired - Lifetime
- 1990-05-04 DK DK90610030.0T patent/DK0401149T3/da active
- 1990-05-04 AT AT90610030T patent/ATE104381T1/de active
- 1990-05-04 ES ES90610030T patent/ES2050992T3/es not_active Expired - Lifetime
- 1990-05-08 FI FI902295A patent/FI99152C/fi not_active IP Right Cessation
- 1990-05-16 JP JP2124323A patent/JPH0314687A/ja active Pending
- 1990-05-18 BR BR909002337A patent/BR9002337A/pt not_active IP Right Cessation
- 1990-05-18 MX MX020786A patent/MX166744B/es unknown
- 1990-05-18 NO NO902206A patent/NO176810C/no unknown
- 1990-05-18 KR KR1019900007116A patent/KR930002072B1/ko not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
FI99152C (fi) | 1997-10-10 |
KR900018469A (ko) | 1990-12-21 |
DE69008042T2 (de) | 1994-07-28 |
EP0401149A1 (en) | 1990-12-05 |
BR9002337A (pt) | 1991-08-06 |
CA2014563A1 (en) | 1990-11-19 |
DE69008042D1 (de) | 1994-05-19 |
NO176810B (no) | 1995-02-20 |
CA2014563C (en) | 1995-12-05 |
ES2050992T3 (es) | 1994-06-01 |
NO902206D0 (no) | 1990-05-18 |
JPH0314687A (ja) | 1991-01-23 |
EP0401149B1 (en) | 1994-04-13 |
NO176810C (no) | 1995-05-31 |
FI902295A0 (fi) | 1990-05-08 |
KR930002072B1 (ko) | 1993-03-26 |
FI99152B (fi) | 1997-06-30 |
US5011572A (en) | 1991-04-30 |
ATE104381T1 (de) | 1994-04-15 |
MX166744B (es) | 1993-02-01 |
NO902206L (no) | 1990-11-20 |
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