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
- brightness
- mass
- temperature
- effect
- filling
- 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)
- Primary Cells (AREA)
- Dental Preparations (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
- Glass Compositions (AREA)
- Secondary Cells (AREA)
- Peptides Or Proteins (AREA)
- Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)
Abstract
Det blir beskrevet en fremgangsmåte for forbedring av masselyshet ved anvendelse av en kombinasjon av en distribuert total hvitlutpåfylling under trinnene ved påfylling av varmlut, ekstra varm lut og koking i en satsvis prosess og lave koketcmpcraturer under kokctrinnet. Den høye totale hvitlutpåfyllingen er i området mellom 15% ÅA og 35% ÅA, mens koketcmperaturene er mellom 150 ~ 168°C.A method for improving mass brightness is described using a combination of a distributed total white liquor filling during the steps of filling hot liquor, extra hot liquor and boiling in a batch process and low boiling temperature during the cooking step. The high total white liquor filling is in the range between 15% ÅA and 35% ÅA, while the boiling temperatures are between 150 ~ 168 ° 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 producing high alpha dissolving pulp |
| 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 RO RO96-01743A patent/RO117929B1/en unknown
- 1995-03-02 AT AT95912729T patent/ATE172503T1/en active
- 1995-03-02 EP EP95912729A patent/EP0748412B1/en not_active Expired - Lifetime
- 1995-03-02 PL PL95316144A patent/PL316144A1/en unknown
- 1995-03-02 MX MX9603876A patent/MX9603876A/en unknown
- 1995-03-02 AU AU19789/95A patent/AU684623B2/en not_active Ceased
- 1995-03-02 ES ES95912729T patent/ES2126263T3/en not_active Expired - Lifetime
- 1995-03-02 DE DE69505503T patent/DE69505503T2/en not_active Expired - Fee Related
- 1995-03-02 BR BR9506974A patent/BR9506974A/en not_active IP Right Cessation
- 1995-03-02 CA CA002184706A patent/CA2184706C/en not_active Expired - Fee Related
- 1995-03-02 NZ NZ282616A patent/NZ282616A/en unknown
- 1995-03-02 RU RU96121355A patent/RU2127342C1/en active
- 1995-03-02 WO PCT/US1995/002719 patent/WO1995023891A1/en active IP Right Grant
- 1995-03-02 CN CN95191955A patent/CN1143398A/en active Pending
- 1995-03-02 JP JP7523062A patent/JP2876428B2/en not_active Expired - Lifetime
- 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 |
|---|---|
| FI963448L (en) | 1996-09-03 |
| FI118348B (en) | 2007-10-15 |
| RU2127342C1 (en) | 1999-03-10 |
| DE69505503D1 (en) | 1998-11-26 |
| PL316144A1 (en) | 1996-12-23 |
| EP0748412A1 (en) | 1996-12-18 |
| AU1978995A (en) | 1995-09-18 |
| BR9506974A (en) | 1997-09-16 |
| NZ282616A (en) | 1997-05-26 |
| CN1143398A (en) | 1997-02-19 |
| MX9603876A (en) | 1997-03-29 |
| DE69505503T2 (en) | 1999-10-21 |
| JP2876428B2 (en) | 1999-03-31 |
| RO117929B1 (en) | 2002-09-30 |
| TW270159B (en) | 1996-02-11 |
| FI963448A0 (en) | 1996-09-03 |
| CA2184706C (en) | 2001-10-30 |
| EP0748412B1 (en) | 1998-10-21 |
| ATE172503T1 (en) | 1998-11-15 |
| CA2184706A1 (en) | 1995-09-08 |
| ES2126263T3 (en) | 1999-03-16 |
| ZA951777B (en) | 1995-12-11 |
| AU684623B2 (en) | 1997-12-18 |
| WO1995023891A1 (en) | 1995-09-08 |
| JPH09505115A (en) | 1997-05-20 |
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