PT881326E - PROCESS FOR THE PREPARATION OF BRANDED SPECIAL CELLS - Google Patents
PROCESS FOR THE PREPARATION OF BRANDED SPECIAL CELLSInfo
- Publication number
- PT881326E PT881326E PT97108710T PT97108710T PT881326E PT 881326 E PT881326 E PT 881326E PT 97108710 T PT97108710 T PT 97108710T PT 97108710 T PT97108710 T PT 97108710T PT 881326 E PT881326 E PT 881326E
- Authority
- PT
- Portugal
- Prior art keywords
- branded
- preparation
- special cells
- degradation
- special
- 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
- 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)
- Polysaccharides And Polysaccharide Derivatives (AREA)
- Immobilizing And Processing Of Enzymes And Microorganisms (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 |
---|---|
PT881326E true PT881326E (en) | 2002-04-29 |
Family
ID=8226853
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PT97108710T PT881326E (en) | 1997-05-30 | 1997-05-30 | PROCESS FOR THE PREPARATION OF BRANDED 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 |
US4295928A (en) * | 1980-08-07 | 1981-10-20 | Nalco Chemical Company | Phenolic compounds as viscosity preservatives during hypochlorite pulp bleaching |
US4298428A (en) * | 1980-08-07 | 1981-11-03 | Nalco Chemical Company | Use of additives in pulp bleaching processes to preserve pulp strength |
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 AT AT97108710T patent/ATE207153T1/en not_active IP Right Cessation
- 1997-05-30 PT PT97108710T patent/PT881326E/en unknown
- 1997-05-30 EP EP97108710A patent/EP0881326B1/en not_active Expired - Lifetime
- 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
Also Published As
Publication number | Publication date |
---|---|
EP0881326B1 (en) | 2001-10-17 |
DK0881326T3 (en) | 2002-02-11 |
DE59704964D1 (en) | 2001-11-22 |
ATE207153T1 (en) | 2001-11-15 |
ES2164279T3 (en) | 2002-02-16 |
EP0881326A1 (en) | 1998-12-02 |
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