FI974221A0 - Effektiverat foerfarande foer blekning av en kemisk massa - Google Patents
Effektiverat foerfarande foer blekning av en kemisk massaInfo
- Publication number
- FI974221A0 FI974221A0 FI974221A FI974221A FI974221A0 FI 974221 A0 FI974221 A0 FI 974221A0 FI 974221 A FI974221 A FI 974221A FI 974221 A FI974221 A FI 974221A FI 974221 A0 FI974221 A0 FI 974221A0
- Authority
- FI
- Finland
- Prior art keywords
- pulp
- chemical mass
- dicarboxylethoxy
- ethyl
- chlorine dioxide
- 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
- D21C9/16—Bleaching ; Apparatus therefor with per compounds
-
- 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
- D21C9/1042—Use of chelating agents
-
- 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
-
- 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
- D21C9/12—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds
- D21C9/14—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds with ClO2 or chlorites
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
- Detergent Compositions (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Materials For Medical Uses (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
- Silver Salt Photography Or Processing Solution Therefor (AREA)
Priority Applications (11)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI974221A FI105214B (fi) | 1997-11-13 | 1997-11-13 | Tehostettu kemiallisen massan valkaisumenetelmä |
AT98955593T ATE213290T1 (de) | 1997-11-13 | 1998-11-13 | Bleichen von chemischem zellstoff und behandlung mit einem komplexbildner |
DE69803874T DE69803874T2 (de) | 1997-11-13 | 1998-11-13 | Bleichen von chemischem zellstoff und behandlung mit einem komplexbildner |
IDW20001119A ID25541A (id) | 1997-11-13 | 1998-11-13 | Pemutihan bubur kertas kimia dan pengolahannya dengan zat pengelat |
EP98955593A EP1030943B1 (en) | 1997-11-13 | 1998-11-13 | Bleaching of chemical pulp and treatment with a chelating agent |
PT98955593T PT1030943E (pt) | 1997-11-13 | 1998-11-13 | Branqueamento de pasta quimica e tratamento com um agente quelante |
PCT/FI1998/000887 WO1999025919A1 (fi) | 1997-11-13 | 1998-11-13 | Enhanced process for the bleaching of chemical pulp_____________ |
ES98955593T ES2172240T3 (es) | 1997-11-13 | 1998-11-13 | Blanqueo de pasta quimica y tratamiento con un agente quelante. |
CA002310038A CA2310038C (en) | 1997-11-13 | 1998-11-13 | Bleaching of chemical pulp and treatment with a chelating agent |
AU12365/99A AU1236599A (en) | 1997-11-13 | 1998-11-13 | Bleaching of chemical pulp and treatment with a chelating agent |
US09/554,331 US6331192B1 (en) | 1997-11-13 | 1998-11-13 | Bleaching of chemical pulp and treatment with a chelating agent |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI974221 | 1997-11-13 | ||
FI974221A FI105214B (fi) | 1997-11-13 | 1997-11-13 | Tehostettu kemiallisen massan valkaisumenetelmä |
Publications (3)
Publication Number | Publication Date |
---|---|
FI974221A0 true FI974221A0 (fi) | 1997-11-13 |
FI974221A FI974221A (fi) | 1999-05-14 |
FI105214B FI105214B (fi) | 2000-06-30 |
Family
ID=8549932
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FI974221A FI105214B (fi) | 1997-11-13 | 1997-11-13 | Tehostettu kemiallisen massan valkaisumenetelmä |
Country Status (11)
Country | Link |
---|---|
US (1) | US6331192B1 (fi) |
EP (1) | EP1030943B1 (fi) |
AT (1) | ATE213290T1 (fi) |
AU (1) | AU1236599A (fi) |
CA (1) | CA2310038C (fi) |
DE (1) | DE69803874T2 (fi) |
ES (1) | ES2172240T3 (fi) |
FI (1) | FI105214B (fi) |
ID (1) | ID25541A (fi) |
PT (1) | PT1030943E (fi) |
WO (1) | WO1999025919A1 (fi) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FI106258B (fi) | 1998-03-09 | 2000-12-29 | Kemira Chemicals Oy | Menetelmiä N-bis-[2-(1,2-dikarboksi-etoksi)-etyyli]amiinijohdannaisen valmistamiseksi sekä menetelmien tuotteet ja niiden käytöt |
DE60020318T2 (de) | 1999-09-03 | 2006-05-18 | Nippon Shokubai Co., Ltd. | Zusammensetzung von Aminosäure-Derivaten und Verfahren zur Herstellung von einem Aminosäure-Derivat |
FI123102B (fi) * | 2006-03-31 | 2012-11-15 | Laennen Tutkimus Western Res Inc Oy | Kemiallisen massan valkaisumenetelmä |
FI122626B (fi) * | 2006-03-31 | 2012-04-30 | Laennen Tutkimus Western Res Inc Oy | Kemiallisen massan valkaisumenetelmä |
CN102076911B (zh) | 2008-06-20 | 2013-03-13 | 国际纸业公司 | 具有改良光学特性的组合物和记录片材 |
FI123926B (fi) | 2012-04-03 | 2013-12-13 | Upm Kymmene Corp | Menetelmä sellun valkaisemiseksi |
CN104294613B (zh) * | 2014-08-08 | 2019-08-30 | 广东羽威农业集团有限公司 | 一种高蓬松度的纯白抗菌羽绒及其制备方法 |
WO2016159403A1 (ko) * | 2015-03-30 | 2016-10-06 | 주식회사 아시아모빌 | 킬레이트 화합물을 이용한 펄프 표백방법 |
FI128968B (fi) | 2020-03-31 | 2021-04-15 | Chempolis Oy | Selluloosamassan peroksidivalkaisu |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4340043A1 (de) * | 1993-11-24 | 1995-06-01 | Henkel Kgaa | Verwendung Stickstoff-haltiger Komplexbildner bei der Holzstoffbleiche |
SE502706E (sv) | 1994-04-05 | 1999-09-27 | Mo Och Domsjoe Ab | Framställnng av blekt cellulosamassa genom blekning med klordioxid och behandling av komplexbildare i samma steg |
CA2173824A1 (en) * | 1995-04-27 | 1996-10-28 | Brian A. Parker | Ethylenediaminetriacetic acid and salts thereof as chelating agents in pulp bleaching |
FI112075B (fi) * | 1996-05-30 | 2003-10-31 | Kemira Chemicals Oy | N-bis- tai N-tris-[(1,2-dikarboksyyli-etoksi)-etyyli]amiinijohdannaiset, niiden valmistus ja käyttö |
FI104572B (fi) * | 1996-05-30 | 2000-02-29 | Kemira Chemicals Oy | Menetelmä kemiallisen massan valkaisemiseksi |
-
1997
- 1997-11-13 FI FI974221A patent/FI105214B/fi not_active IP Right Cessation
-
1998
- 1998-11-13 AU AU12365/99A patent/AU1236599A/en not_active Abandoned
- 1998-11-13 US US09/554,331 patent/US6331192B1/en not_active Expired - Fee Related
- 1998-11-13 ES ES98955593T patent/ES2172240T3/es not_active Expired - Lifetime
- 1998-11-13 AT AT98955593T patent/ATE213290T1/de active
- 1998-11-13 CA CA002310038A patent/CA2310038C/en not_active Expired - Fee Related
- 1998-11-13 EP EP98955593A patent/EP1030943B1/en not_active Expired - Lifetime
- 1998-11-13 WO PCT/FI1998/000887 patent/WO1999025919A1/fi active IP Right Grant
- 1998-11-13 DE DE69803874T patent/DE69803874T2/de not_active Expired - Lifetime
- 1998-11-13 ID IDW20001119A patent/ID25541A/id unknown
- 1998-11-13 PT PT98955593T patent/PT1030943E/pt unknown
Also Published As
Publication number | Publication date |
---|---|
ATE213290T1 (de) | 2002-02-15 |
EP1030943B1 (en) | 2002-02-13 |
CA2310038C (en) | 2008-01-15 |
PT1030943E (pt) | 2002-07-31 |
ID25541A (id) | 2000-10-12 |
DE69803874T2 (de) | 2002-08-29 |
FI105214B (fi) | 2000-06-30 |
AU1236599A (en) | 1999-06-07 |
CA2310038A1 (en) | 1999-05-27 |
US6331192B1 (en) | 2001-12-18 |
WO1999025919A1 (fi) | 1999-05-27 |
ES2172240T3 (es) | 2002-09-16 |
EP1030943A1 (en) | 2000-08-30 |
FI974221A (fi) | 1999-05-14 |
DE69803874D1 (de) | 2002-03-21 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
MM | Patent lapsed |