FI20085425L - Sulfate pre-hydrolysis cooking method - Google Patents
Sulfate pre-hydrolysis cooking method Download PDFInfo
- Publication number
- FI20085425L FI20085425L FI20085425A FI20085425A FI20085425L FI 20085425 L FI20085425 L FI 20085425L FI 20085425 A FI20085425 A FI 20085425A FI 20085425 A FI20085425 A FI 20085425A FI 20085425 L FI20085425 L FI 20085425L
- Authority
- FI
- Finland
- Prior art keywords
- cooking method
- sulfate pre
- hydrolysis
- hydrolysis cooking
- sulfate
- Prior art date
Links
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 title 1
- 238000010411 cooking Methods 0.000 title 1
- 230000007062 hydrolysis Effects 0.000 title 1
- 238000006460 hydrolysis reaction Methods 0.000 title 1
- 238000000034 method Methods 0.000 title 1
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
- D21C1/00—Pretreatment of the finely-divided materials before digesting
- D21C1/02—Pretreatment of the finely-divided materials before digesting with water or steam
-
- 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
- D21C1/10—Physical methods for facilitating impregnation
-
- 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
- D21C3/02—Pulping cellulose-containing materials with inorganic bases or alkaline reacting compounds, e.g. sulfate processes
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI20085425A FI20085425L (en) | 2008-05-08 | 2008-05-08 | Sulfate pre-hydrolysis cooking method |
US12/991,554 US20110056637A1 (en) | 2008-05-08 | 2009-05-06 | Prehydrolysis sulfate cooking process |
PCT/FI2009/050364 WO2009136000A1 (en) | 2008-05-08 | 2009-05-06 | Prehydrolysis sulfate cooking process |
CN2009801162710A CN102016162A (en) | 2008-05-08 | 2009-05-06 | Prehydrolysis sulfate cooking process |
EP09742200A EP2286022A1 (en) | 2008-05-08 | 2009-05-06 | Prehydrolysis sulfate cooking process |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI20085425A FI20085425L (en) | 2008-05-08 | 2008-05-08 | Sulfate pre-hydrolysis cooking method |
Publications (2)
Publication Number | Publication Date |
---|---|
FI20085425A0 FI20085425A0 (en) | 2008-05-08 |
FI20085425L true FI20085425L (en) | 2009-11-09 |
Family
ID=39523080
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FI20085425A FI20085425L (en) | 2008-05-08 | 2008-05-08 | Sulfate pre-hydrolysis cooking method |
Country Status (5)
Country | Link |
---|---|
US (1) | US20110056637A1 (en) |
EP (1) | EP2286022A1 (en) |
CN (1) | CN102016162A (en) |
FI (1) | FI20085425L (en) |
WO (1) | WO2009136000A1 (en) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20110123184A (en) | 2010-05-06 | 2011-11-14 | 바히아 스페셜티 셀룰로스 에스에이 | Method and system for high alpha dissolving pulp production |
PT2567022E (en) * | 2010-05-04 | 2014-12-23 | Bahia Specialty Cellulose Sa | Method and system for pulp processing using cold caustic extraction with alkaline filtrate reuse |
AU2010202496B2 (en) * | 2010-05-04 | 2015-04-16 | Bahia Specialty Cellulose Sa | Method and system for high alpha dissolving pulp production |
WO2012158075A1 (en) * | 2011-05-13 | 2012-11-22 | Metso Paper Sweden Ab | Compact process for producing prehydrolyzed pulp |
CN102337693B (en) * | 2011-09-30 | 2014-01-22 | 重庆理文造纸有限公司 | Process for stewing and washing dissolving pulp |
CN108699768B (en) * | 2016-02-16 | 2020-10-27 | 维美德公司 | Process for recovering a concentrated hydrolysate after hydrolysis of cellulosic material |
WO2019039982A1 (en) * | 2017-08-25 | 2019-02-28 | Valmet Ab | Improved compact process for producing prehydrolyzed pulp |
CN108252141A (en) * | 2018-01-04 | 2018-07-06 | 安徽工程大学 | A kind of preparation method of Lin's grass fiber and its wet laid nonwoven fabric |
SE1950606A1 (en) * | 2019-05-22 | 2020-10-13 | Valmet Oy | A method for extracting hydrolysate, a batch cooking system and a hydrolysate extracting arrangement |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3013933A (en) * | 1953-01-28 | 1961-12-19 | Rayonier Inc | Method for preparation of wood cellulose |
GB758766A (en) * | 1954-05-10 | 1956-10-10 | Brown And Root Inc | Process for the production of pulp from bagasse |
US5203963A (en) * | 1991-10-21 | 1993-04-20 | A. Ahlstrom Corporation | Continuous treatment of small chips |
US5198074A (en) * | 1991-11-29 | 1993-03-30 | Companhia Industreas Brasileiras Portela | Process to produce a high quality paper product and an ethanol product from bamboo |
AT398588B (en) * | 1992-12-02 | 1994-12-27 | Voest Alpine Ind Anlagen | METHOD FOR THE PRODUCTION OF VISCOSE CELLS |
SE523850E (en) * | 1997-09-22 | 2009-06-02 | Metso Fiber Ab | Procedure for the pre-treatment of chips with base steam and impregnation liquid |
DE19856582C1 (en) * | 1998-12-08 | 2001-03-15 | Rhodia Acetow Ag | Process for the production of chemical pulp from wood chips |
SE518738C2 (en) * | 2001-12-17 | 2002-11-12 | Kvaerner Pulping Tech | Wood chip impregnation method for chemical pulping, comprises impregnating chips with liquid in different temperature zones of vessel |
AU2006254627A1 (en) | 2005-06-03 | 2006-12-07 | Iogen Energy Corporation | Method of continuous processing of lignocellulosic feedstocks |
FI123036B (en) * | 2006-02-10 | 2012-10-15 | Metso Paper Inc | Method for recovering hydrolysis products |
-
2008
- 2008-05-08 FI FI20085425A patent/FI20085425L/en not_active Application Discontinuation
-
2009
- 2009-05-06 WO PCT/FI2009/050364 patent/WO2009136000A1/en active Application Filing
- 2009-05-06 US US12/991,554 patent/US20110056637A1/en not_active Abandoned
- 2009-05-06 CN CN2009801162710A patent/CN102016162A/en active Pending
- 2009-05-06 EP EP09742200A patent/EP2286022A1/en not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
WO2009136000A1 (en) | 2009-11-12 |
EP2286022A1 (en) | 2011-02-23 |
FI20085425A0 (en) | 2008-05-08 |
CN102016162A (en) | 2011-04-13 |
US20110056637A1 (en) | 2011-03-10 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PC | Transfer of assignment of patent |
Owner name: VALMET TECHNOLOGIES, INC. |
|
FD | Application lapsed |