NO980872D0 - Method of preventing the accumulation of metals in a closed pulp bleaching process - Google Patents
Method of preventing the accumulation of metals in a closed pulp bleaching processInfo
- Publication number
- NO980872D0 NO980872D0 NO980872A NO980872A NO980872D0 NO 980872 D0 NO980872 D0 NO 980872D0 NO 980872 A NO980872 A NO 980872A NO 980872 A NO980872 A NO 980872A NO 980872 D0 NO980872 D0 NO 980872D0
- Authority
- NO
- Norway
- Prior art keywords
- accumulation
- metals
- preventing
- bleaching process
- pulp bleaching
- 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
- D21C9/1026—Other features in bleaching processes
-
- 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
- D21C9/166—Bleaching ; Apparatus therefor with per compounds with peracids
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9503004A SE9503004L (en) | 1995-08-30 | 1995-08-30 | Bleaching of pulp |
PCT/SE1996/000997 WO1997008381A1 (en) | 1995-08-30 | 1996-08-09 | Method for preventing accumulation of metals in a closed pulp bleaching process |
Publications (2)
Publication Number | Publication Date |
---|---|
NO980872L NO980872L (en) | 1998-02-27 |
NO980872D0 true NO980872D0 (en) | 1998-02-27 |
Family
ID=20399329
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO980872A NO980872D0 (en) | 1995-08-30 | 1998-02-27 | Method of preventing the accumulation of metals in a closed pulp bleaching process |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP0847460A1 (en) |
AU (1) | AU6892696A (en) |
BR (1) | BR9610198A (en) |
CA (1) | CA2229893A1 (en) |
NO (1) | NO980872D0 (en) |
SE (1) | SE9503004L (en) |
WO (1) | WO1997008381A1 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE509444C2 (en) * | 1997-05-14 | 1999-01-25 | Mo Och Domsjoe Ab | Procedure for Minimizing Calcium Caused Incrustation Problems in Preparation of Bleached Cellulose Pulp |
SE511794C2 (en) * | 1997-06-30 | 1999-11-29 | Sunds Defibrator Ind Ab | Ways to reduce the content of calcium in the liquid phase in a pulp suspension |
WO1999027178A1 (en) * | 1997-11-25 | 1999-06-03 | Amylum Belgium N.V. | Improvements to the bleaching process for chemical pulp and intermediate pulp dispersions |
FI117337B (en) * | 2004-12-16 | 2006-09-15 | Kemira Oyj | A method for removing manganese from water |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE9301160L (en) * | 1992-08-28 | 1994-03-01 | Sunds Defibrator Ind Ab | Process for treating process water |
PL309190A1 (en) * | 1992-11-27 | 1995-09-18 | Eka Nobel Ab | Method of bleaching a lignocellulose containing pulp |
US5554259A (en) * | 1993-10-01 | 1996-09-10 | Union Camp Patent Holdings, Inc. | Reduction of salt scale precipitation by control of process stream Ph and salt concentration |
-
1995
- 1995-08-30 SE SE9503004A patent/SE9503004L/en not_active Application Discontinuation
-
1996
- 1996-08-09 AU AU68926/96A patent/AU6892696A/en not_active Abandoned
- 1996-08-09 CA CA002229893A patent/CA2229893A1/en not_active Abandoned
- 1996-08-09 EP EP96929609A patent/EP0847460A1/en not_active Withdrawn
- 1996-08-09 BR BR9610198A patent/BR9610198A/en not_active Application Discontinuation
- 1996-08-09 WO PCT/SE1996/000997 patent/WO1997008381A1/en not_active Application Discontinuation
-
1998
- 1998-02-27 NO NO980872A patent/NO980872D0/en unknown
Also Published As
Publication number | Publication date |
---|---|
CA2229893A1 (en) | 1997-03-06 |
WO1997008381A1 (en) | 1997-03-06 |
NO980872L (en) | 1998-02-27 |
BR9610198A (en) | 1999-06-29 |
AU6892696A (en) | 1997-03-19 |
SE9503004D0 (en) | 1995-08-30 |
EP0847460A1 (en) | 1998-06-17 |
SE9503004L (en) | 1997-03-01 |
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