NO963520L - Effect of temperature and alkali replenishment on mass brightness - Google Patents
Effect of temperature and alkali replenishment on mass brightnessInfo
- Publication number
- NO963520L NO963520L NO963520A NO963520A NO963520L NO 963520 L NO963520 L NO 963520L NO 963520 A NO963520 A NO 963520A NO 963520 A NO963520 A NO 963520A NO 963520 L NO963520 L NO 963520L
- Authority
- NO
- Norway
- Prior art keywords
- cooking
- brightness
- mass
- temperature
- effect
- 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
- D21C11/00—Regeneration of pulp liquors or effluent waste waters
- D21C11/0021—Introduction of various effluents, e.g. waste waters, into the pulping, recovery and regeneration cycle (closed-cycle)
-
- 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
- D21C1/00—Pretreatment of the finely-divided materials before digesting
- D21C1/06—Pretreatment of the finely-divided materials before digesting with alkaline reacting 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
- D21C3/00—Pulping cellulose-containing materials
- D21C3/22—Other features of pulping processes
Landscapes
- Paper (AREA)
- Pens And Brushes (AREA)
- Glass Compositions (AREA)
- Secondary Cells (AREA)
- Dental Preparations (AREA)
- Primary Cells (AREA)
- Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)
- Peptides Or Proteins (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
Abstract
A method for improving pulp brightness utilizes a combination of a distributed total white liquor charge during the warm fill, hot fill and cooking stages of a batch cooking process and low cooking temperatures during the cooking stage. The high total white liquor charge ranges between 15 % AA &tilde& 35 % AA, while the cooking temperatures range between 150 &tilde& 168 DEG C._________________________
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US20649694A | 1994-03-04 | 1994-03-04 | |
| PCT/US1995/002719 WO1995023891A1 (en) | 1994-03-04 | 1995-03-02 | Impact of temperature and alkali charge on pulp brightness |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NO963520L true NO963520L (en) | 1996-08-23 |
Family
ID=22766657
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO963520A NO963520L (en) | 1994-03-04 | 1996-08-23 | Effect of temperature and alkali replenishment on mass brightness |
Country Status (19)
| Country | Link |
|---|---|
| EP (1) | EP0748412B1 (en) |
| JP (1) | JP2876428B2 (en) |
| CN (1) | CN1143398A (en) |
| AT (1) | ATE172503T1 (en) |
| AU (1) | AU684623B2 (en) |
| BR (1) | BR9506974A (en) |
| CA (1) | CA2184706C (en) |
| DE (1) | DE69505503T2 (en) |
| ES (1) | ES2126263T3 (en) |
| FI (1) | FI118348B (en) |
| MX (1) | MX9603876A (en) |
| NO (1) | NO963520L (en) |
| NZ (1) | NZ282616A (en) |
| PL (1) | PL316144A1 (en) |
| RO (1) | RO117929B1 (en) |
| RU (1) | RU2127342C1 (en) |
| TW (1) | TW270159B (en) |
| WO (1) | WO1995023891A1 (en) |
| ZA (1) | ZA951777B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI970254A (en) | 1997-01-22 | 1998-07-23 | Ahlstrom Machinery Oy | Method and apparatus for cooking pulp |
| US6139689A (en) * | 1997-06-11 | 2000-10-31 | Beloit Technologies, Inc. | Apparatus for digesting pulp in a displacement batch digester that uses displacement liquor having a sufficient hydrostatic head |
| FI20001351A0 (en) * | 2000-06-06 | 2000-06-06 | Valmet Chemical Pulping Oy | Eräkeittomenetelmä |
| SE529475C2 (en) * | 2006-11-22 | 2007-08-21 | Metso Fiber Karlstad Ab | Recovery of heat from black liquor during pulp production process, comprises supplying black liquor and bleaching filtrate to heat exchanger |
| KR20110123184A (en) | 2010-05-06 | 2011-11-14 | 바히아 스페셜티 셀룰로스 에스에이 | Method and system for high alpha dissolving pulp production |
| CN103757961B (en) * | 2013-12-30 | 2016-01-20 | 汶瑞机械(山东)有限公司 | A kind of batch cooking device and liquid distributing method thereof |
| US9644317B2 (en) | 2014-11-26 | 2017-05-09 | International Paper Company | Continuous digester and feeding system |
| FI129440B (en) * | 2020-01-15 | 2022-02-28 | Chempolis Oy | Cooking equipment and method for treating biomass containing lignocellulose |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1687076A (en) * | 1927-10-12 | 1928-10-09 | Venning D Simons | Process for cooking wood chips by the alkaline process of pulp manufacture |
| US4578149A (en) * | 1981-03-05 | 1986-03-25 | Fagerlund Bertil K E | Process for digesting cellulosic material with heat recovery |
| JPS6059189A (en) * | 1983-08-24 | 1985-04-05 | ベロイト コ−ポレ−ション | Multi-stage digestion of wood pulp |
| SU1498857A1 (en) * | 1987-07-17 | 1989-08-07 | Сибирский научно-исследовательский институт целлюлозы и картона | Method of alkaline digestion of pulp in intermittent-action digesters |
-
1995
- 1995-02-23 TW TW084101667A patent/TW270159B/zh active
- 1995-03-02 EP EP95912729A patent/EP0748412B1/en not_active Expired - Lifetime
- 1995-03-02 NZ NZ282616A patent/NZ282616A/en unknown
- 1995-03-02 WO PCT/US1995/002719 patent/WO1995023891A1/en active IP Right Grant
- 1995-03-02 AU AU19789/95A patent/AU684623B2/en not_active Ceased
- 1995-03-02 RO RO96-01743A patent/RO117929B1/en unknown
- 1995-03-02 DE DE69505503T patent/DE69505503T2/en not_active Expired - Fee Related
- 1995-03-02 ES ES95912729T patent/ES2126263T3/en not_active Expired - Lifetime
- 1995-03-02 RU RU96121355A patent/RU2127342C1/en active
- 1995-03-02 JP JP7523062A patent/JP2876428B2/en not_active Expired - Lifetime
- 1995-03-02 CA CA002184706A patent/CA2184706C/en not_active Expired - Fee Related
- 1995-03-02 MX MX9603876A patent/MX9603876A/en unknown
- 1995-03-02 AT AT95912729T patent/ATE172503T1/en active
- 1995-03-02 CN CN95191955A patent/CN1143398A/en active Pending
- 1995-03-02 BR BR9506974A patent/BR9506974A/en not_active IP Right Cessation
- 1995-03-02 PL PL95316144A patent/PL316144A1/en unknown
- 1995-03-03 ZA ZA951777A patent/ZA951777B/en unknown
-
1996
- 1996-08-23 NO NO963520A patent/NO963520L/en unknown
- 1996-09-03 FI FI963448A patent/FI118348B/en active IP Right Grant
Also Published As
| Publication number | Publication date |
|---|---|
| TW270159B (en) | 1996-02-11 |
| CN1143398A (en) | 1997-02-19 |
| MX9603876A (en) | 1997-03-29 |
| RU2127342C1 (en) | 1999-03-10 |
| ZA951777B (en) | 1995-12-11 |
| DE69505503T2 (en) | 1999-10-21 |
| AU1978995A (en) | 1995-09-18 |
| BR9506974A (en) | 1997-09-16 |
| AU684623B2 (en) | 1997-12-18 |
| WO1995023891A1 (en) | 1995-09-08 |
| FI963448A (en) | 1996-09-03 |
| CA2184706C (en) | 2001-10-30 |
| NZ282616A (en) | 1997-05-26 |
| JPH09505115A (en) | 1997-05-20 |
| FI963448A0 (en) | 1996-09-03 |
| EP0748412B1 (en) | 1998-10-21 |
| ES2126263T3 (en) | 1999-03-16 |
| JP2876428B2 (en) | 1999-03-31 |
| CA2184706A1 (en) | 1995-09-08 |
| EP0748412A1 (en) | 1996-12-18 |
| PL316144A1 (en) | 1996-12-23 |
| ATE172503T1 (en) | 1998-11-15 |
| RO117929B1 (en) | 2002-09-30 |
| FI118348B (en) | 2007-10-15 |
| DE69505503D1 (en) | 1998-11-26 |
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