ES2164279T3 - PROCEDURE FOR THE MANUFACTURE OF BLEACHED SPECIAL CELLS. - Google Patents
PROCEDURE FOR THE MANUFACTURE OF BLEACHED SPECIAL CELLS.Info
- Publication number
- ES2164279T3 ES2164279T3 ES97108710T ES97108710T ES2164279T3 ES 2164279 T3 ES2164279 T3 ES 2164279T3 ES 97108710 T ES97108710 T ES 97108710T ES 97108710 T ES97108710 T ES 97108710T ES 2164279 T3 ES2164279 T3 ES 2164279T3
- Authority
- ES
- Spain
- Prior art keywords
- bleached
- procedure
- manufacture
- special cells
- degradation
- 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.)
- Expired - Lifetime
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
- D21C5/00—Other processes for obtaining cellulose, e.g. cooking cotton linters ; Processes characterised by the choice of cellulose-containing starting materials
-
- 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)
- Immobilizing And Processing Of Enzymes And Microorganisms (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
- Medicines Containing Material From Animals Or Micro-Organisms (AREA)
Abstract
Reduction of degradation of cellulose and its derivatives in the production of bleached special pulp from annual plants comprises using additives (I) that do not react with the half stuff, bleaching chemicals and other components of the bleaching liquor but inhibit degradation.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP97108710A EP0881326B1 (en) | 1997-05-30 | 1997-05-30 | Process for producing bleached special cellulose pulps |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2164279T3 true ES2164279T3 (en) | 2002-02-16 |
Family
ID=8226853
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES97108710T Expired - Lifetime ES2164279T3 (en) | 1997-05-30 | 1997-05-30 | PROCEDURE FOR THE MANUFACTURE OF BLEACHED SPECIAL CELLS. |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0881326B1 (en) |
AT (1) | ATE207153T1 (en) |
DE (1) | DE59704964D1 (en) |
DK (1) | DK0881326T3 (en) |
ES (1) | ES2164279T3 (en) |
PT (1) | PT881326E (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AR088787A1 (en) * | 2011-08-30 | 2014-07-10 | Cargill Inc | PULP COMPOSITION |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2367771A (en) * | 1941-10-08 | 1945-01-23 | Mathieson Alkali Works Inc | Bleaching cellulosic materials |
US2478379A (en) * | 1948-07-30 | 1949-08-09 | Hercules Powder Co Ltd | Cellulose bleaching |
US4248663A (en) * | 1978-07-05 | 1981-02-03 | Pulp And Paper Research Institute Of Canada | Pulping with an alkaline liquor containing a cyclic keto compound and an amino compound |
SE434284B (en) * | 1980-05-07 | 1984-07-16 | Mo Och Domsjoe Ab | PROCEDURES FOR OXYGEN DELIGNIFICATION OF CHEMICAL CONSUMPED CELLULOSAMASSA TO WHICH AROMATIC DIAMINES ARE PROVIDED |
US4298428A (en) * | 1980-08-07 | 1981-11-03 | Nalco Chemical Company | Use of additives in pulp bleaching processes to preserve pulp strength |
US4295928A (en) * | 1980-08-07 | 1981-10-20 | Nalco Chemical Company | Phenolic compounds as viscosity preservatives during hypochlorite pulp bleaching |
US4487656A (en) * | 1983-09-30 | 1984-12-11 | Melamine Chemicals, Inc. | Process for bleaching paper pulp using melamine as a viscosity stabilizer |
JPS6112992A (en) * | 1984-06-26 | 1986-01-21 | 新王子製紙株式会社 | Bleaching of lignocellulose substance |
DE4137761A1 (en) * | 1991-05-17 | 1992-11-19 | Call Hans Peter | METHOD FOR DELIGNIFYING LIGNOCELLULOSE-CONTAINING MATERIAL, BLEACHING AND TREATING WASTEWATER BY LACCASE WITH EXTENDED EFFECTIVENESS |
WO1995033884A1 (en) * | 1994-06-02 | 1995-12-14 | Macmillan Bloedel Limited | Ozone bleaching |
US5529662A (en) * | 1994-07-06 | 1996-06-25 | Macmillan Bloedel Limited | Method of bleaching cellulosic pulps with ozone and a protective amount of an N-alkylated urea |
-
1997
- 1997-05-30 EP EP97108710A patent/EP0881326B1/en not_active Expired - Lifetime
- 1997-05-30 PT PT97108710T patent/PT881326E/en unknown
- 1997-05-30 DK DK97108710T patent/DK0881326T3/en active
- 1997-05-30 ES ES97108710T patent/ES2164279T3/en not_active Expired - Lifetime
- 1997-05-30 DE DE59704964T patent/DE59704964D1/en not_active Expired - Lifetime
- 1997-05-30 AT AT97108710T patent/ATE207153T1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
EP0881326B1 (en) | 2001-10-17 |
DE59704964D1 (en) | 2001-11-22 |
ATE207153T1 (en) | 2001-11-15 |
EP0881326A1 (en) | 1998-12-02 |
PT881326E (en) | 2002-04-29 |
DK0881326T3 (en) | 2002-02-11 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FG2A | Definitive protection |
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