ATE145025T1 - METHOD FOR CONTINUOUSLY DISTRIBUTING CELLULOSE FIBERS - Google Patents
METHOD FOR CONTINUOUSLY DISTRIBUTING CELLULOSE FIBERSInfo
- Publication number
- ATE145025T1 ATE145025T1 AT92918282T AT92918282T ATE145025T1 AT E145025 T1 ATE145025 T1 AT E145025T1 AT 92918282 T AT92918282 T AT 92918282T AT 92918282 T AT92918282 T AT 92918282T AT E145025 T1 ATE145025 T1 AT E145025T1
- Authority
- AT
- Austria
- Prior art keywords
- liquid
- impregnating
- fibre material
- withdrawn
- inlet end
- 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
- D21C3/00—Pulping cellulose-containing materials
- D21C3/22—Other features of pulping processes
- D21C3/24—Continuous 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
- D21C1/00—Pretreatment of the finely-divided materials before digesting
Landscapes
- Paper (AREA)
- Artificial Filaments (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Abstract
A process for the continuous digestion of cellulosic fiber material, comprising impregnation with impregnating liquid consisting of at least one fresh digesting liquor, in a closed impregnating system and subsequent digestion with digesting liquid in a closed digester system, said impregnating liquid being supplied through a supply system, together with steamed fibre material, to an inlet end of the impregnating system, liquid being withdrawn from the impregnating system at a point (46) located at a predetermined distance from said inlet end. According to the invention such a first quantity of liquid (F) is withdrawn at said withdrawal point (46) and recirculated directly to the supply system that a predetermined minimum ratio between liquid and fibre material is continuously maintained in the impregnating system prior to said withdrawal point (46), the liquid in said liquid to fibre material ratio being derived from original moisture (A) in the fibre material, condensates (B, C) from an initial steaming of the fibre material, and added fresh digesting liquor(s) (D and/or E) besides said withdrawn and recirculated quantity of liquid (F).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9102427A SE469078B (en) | 1991-08-23 | 1991-08-23 | SET FOR CONTINUOUS COOKING OF CELLULOSIC FIBER MATERIAL |
Publications (1)
Publication Number | Publication Date |
---|---|
ATE145025T1 true ATE145025T1 (en) | 1996-11-15 |
Family
ID=20383529
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT92918282T ATE145025T1 (en) | 1991-08-23 | 1992-08-11 | METHOD FOR CONTINUOUSLY DISTRIBUTING CELLULOSE FIBERS |
Country Status (11)
Country | Link |
---|---|
EP (1) | EP0662169B1 (en) |
JP (1) | JPH06510091A (en) |
AT (1) | ATE145025T1 (en) |
AU (1) | AU2490392A (en) |
CA (1) | CA2115578A1 (en) |
DE (1) | DE69215110T2 (en) |
FI (1) | FI940826A (en) |
ID (1) | ID848B (en) |
PT (1) | PT100799A (en) |
SE (1) | SE469078B (en) |
WO (1) | WO1993004232A1 (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5413677A (en) * | 1993-04-05 | 1995-05-09 | Kamyr, Inc. | Method for producing chemical pulp from hardwood chips |
SE506703C2 (en) | 1995-07-12 | 1998-02-02 | Kvaerner Pulping Tech | Impregnation of fiber material in co-current during continuous boiling |
US7297236B1 (en) | 2001-06-30 | 2007-11-20 | Icm, Inc. | Ethanol distillation process |
SE527058C2 (en) * | 2004-02-09 | 2005-12-13 | Kvaerner Pulping Tech | Continuous cooking process with improved heat economy |
SE0602675L (en) * | 2006-12-13 | 2007-09-18 | Metso Fiber Karlstad Ab | Method for energy efficient production of cellulose pulp in a continuous cookery |
US9644317B2 (en) | 2014-11-26 | 2017-05-09 | International Paper Company | Continuous digester and feeding system |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE359331B (en) * | 1970-03-17 | 1973-08-27 | Kamyr Ab | |
SE468053B (en) * | 1988-12-20 | 1992-10-26 | Kamyr Ab | SET ON CONTINUOUS DISSOLUTION COOKING OF CELLULOSIC FIBER MATERIAL |
-
1991
- 1991-08-23 SE SE9102427A patent/SE469078B/en not_active IP Right Cessation
-
1992
- 1992-08-11 DE DE69215110T patent/DE69215110T2/en not_active Expired - Fee Related
- 1992-08-11 AU AU24903/92A patent/AU2490392A/en not_active Abandoned
- 1992-08-11 EP EP92918282A patent/EP0662169B1/en not_active Expired - Lifetime
- 1992-08-11 AT AT92918282T patent/ATE145025T1/en not_active IP Right Cessation
- 1992-08-11 CA CA002115578A patent/CA2115578A1/en not_active Abandoned
- 1992-08-11 WO PCT/SE1992/000546 patent/WO1993004232A1/en active IP Right Grant
- 1992-08-11 JP JP5504253A patent/JPH06510091A/en active Pending
- 1992-08-21 PT PT100799A patent/PT100799A/en not_active Application Discontinuation
- 1992-08-21 ID IDP460392A patent/ID848B/en unknown
-
1994
- 1994-02-22 FI FI940826A patent/FI940826A/en not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
SE9102427L (en) | 1993-02-24 |
WO1993004232A1 (en) | 1993-03-04 |
CA2115578A1 (en) | 1993-03-04 |
EP0662169B1 (en) | 1996-11-06 |
PT100799A (en) | 1994-05-31 |
SE469078B (en) | 1993-05-10 |
DE69215110T2 (en) | 1997-04-03 |
JPH06510091A (en) | 1994-11-10 |
SE9102427D0 (en) | 1991-08-23 |
AU2490392A (en) | 1993-03-16 |
ID848B (en) | 1996-08-01 |
DE69215110D1 (en) | 1996-12-12 |
FI940826A0 (en) | 1994-02-22 |
EP0662169A1 (en) | 1995-07-12 |
FI940826A (en) | 1994-02-22 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
UEP | Publication of translation of european patent specification | ||
REN | Ceased due to non-payment of the annual fee |