FI974455A - Förfarande för produktion av förrenad massa - Google Patents
Förfarande för produktion av förrenad massa Download PDFInfo
- Publication number
- FI974455A FI974455A FI974455A FI974455A FI974455A FI 974455 A FI974455 A FI 974455A FI 974455 A FI974455 A FI 974455A FI 974455 A FI974455 A FI 974455A FI 974455 A FI974455 A FI 974455A
- Authority
- FI
- Finland
- Prior art keywords
- production
- purified pulp
- liquors
- lignin
- polysaccharides
- 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
- D21C3/02—Pulping cellulose-containing materials with inorganic bases or alkaline reacting compounds, e.g. sulfate 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
- D21C1/04—Pretreatment of the finely-divided materials before digesting with acid reacting compounds
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Paper (AREA)
- Inorganic Insulating Materials (AREA)
- Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI974455A FI122654B (sv) | 1997-12-08 | 1997-12-08 | Förfarande för framställning av papperscellulosamassa |
EP98660126A EP0921228B1 (en) | 1997-12-08 | 1998-11-18 | Method for the production of precleaned pulp |
AT98660126T ATE287986T1 (de) | 1997-12-08 | 1998-11-18 | Verfahren zur herstellung von vorgereignigtem zellstoff |
BR9805237-3A BR9805237A (pt) | 1997-12-08 | 1998-12-08 | Processo para a preparação de polpa de papel de material lignocelulósico. |
JP10366128A JPH11241285A (ja) | 1997-12-08 | 1998-12-08 | 前清浄化されたパルプの製造方法 |
US09/589,706 US6533896B1 (en) | 1997-12-08 | 2000-06-08 | Method for the production of precleaned pulp |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI974455 | 1997-12-08 | ||
FI974455A FI122654B (sv) | 1997-12-08 | 1997-12-08 | Förfarande för framställning av papperscellulosamassa |
Publications (3)
Publication Number | Publication Date |
---|---|
FI974455A0 FI974455A0 (fi) | 1997-12-08 |
FI974455A true FI974455A (sv) | 1999-06-09 |
FI122654B FI122654B (sv) | 2012-05-15 |
Family
ID=8550079
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FI974455A FI122654B (sv) | 1997-12-08 | 1997-12-08 | Förfarande för framställning av papperscellulosamassa |
Country Status (6)
Country | Link |
---|---|
US (1) | US6533896B1 (sv) |
EP (1) | EP0921228B1 (sv) |
JP (1) | JPH11241285A (sv) |
AT (1) | ATE287986T1 (sv) |
BR (1) | BR9805237A (sv) |
FI (1) | FI122654B (sv) |
Families Citing this family (26)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE520874E (sv) | 2001-11-30 | 2013-01-15 | Stfi Packforsk Ab | Avlägsnande av oorganiska grundämnen från träflis före kokning till massa |
SE0104247L (sv) * | 2001-12-14 | 2002-10-22 | Kvaerner Pulping Tech | Förbehandling av flis med färsk vitlut före behandling med svartlut |
SE525064C2 (sv) * | 2003-04-17 | 2004-11-23 | Kvaerner Pulping Tech | Metod för impregnering av flis med sur behandlingsvätska i samband med sulfatkokning av cellulosamassa |
WO2004106624A1 (en) * | 2003-06-03 | 2004-12-09 | Pacific Pulp Resources Inc. | Method for producing pulp and lignin |
US20050115690A1 (en) * | 2003-11-25 | 2005-06-02 | Casella Waste Systems, Inc. | Methods for producing recycled pulp from waste paper |
US8317975B2 (en) | 2004-04-20 | 2012-11-27 | The Research Foundation Of The State University Of New York | Product and processes from an integrated forest biorefinery |
CN104109983A (zh) | 2005-05-24 | 2014-10-22 | 国际纸业公司 | 改性的牛皮纤维 |
US7520958B2 (en) * | 2005-05-24 | 2009-04-21 | International Paper Company | Modified kraft fibers |
WO2007065241A1 (en) * | 2005-12-07 | 2007-06-14 | Kelly Anthony O'flynn | A novel catalytic reactor process for the production of commercial grade pulp, native lignin and unicellular protein |
US20070167618A1 (en) * | 2006-01-13 | 2007-07-19 | Celanese Acetate, Llc | Manufacture of cellulose esters: recycle of caustic and/or acid from pre-treatment of pulp |
FI123036B (sv) * | 2006-02-10 | 2012-10-15 | Metso Paper Inc | Förfarande för tillvaratagande av hydrolysprodukter |
FI20065105A0 (sv) * | 2006-02-10 | 2006-02-10 | Metso Paper Inc | Förfarande för tillvaratagande av hydrolysprodukter |
AT503610B1 (de) * | 2006-05-10 | 2012-03-15 | Chemiefaser Lenzing Ag | Verfahren zur herstellung eines zellstoffes |
US8734610B2 (en) * | 2007-05-23 | 2014-05-27 | Andritz Inc. | Two vessel reactor system and method for hydrolysis and digestion of wood chips with chemical enhanced wash method |
EP3124501A1 (en) * | 2009-03-09 | 2017-02-01 | TreeToTextile AB | Shaped cellulose manufacturing process |
BR112012019668B1 (pt) * | 2010-02-08 | 2019-04-09 | Iogen Energy Corporation | Metodo para a remoção de crostas durante um processo de conversão lignocelulósica |
KR20110123184A (ko) | 2010-05-06 | 2011-11-14 | 바히아 스페셜티 셀룰로스 에스에이 | 높은 알파 용해 펄프 제조를 위한 방법 및 시스템 |
WO2011138633A1 (en) * | 2010-05-04 | 2011-11-10 | Bahia Specialty Cellulose Sa | Method and system for pulp processing using cold caustic extraction with alkaline filtrate reuse |
FI20105799A0 (sv) * | 2010-07-13 | 2010-07-13 | Olli Joutsimo | Förbättrad process för framställning av kemisk massa |
US9371612B2 (en) * | 2011-02-22 | 2016-06-21 | Andritz Inc. | Method and apparatus to produce pulp using pre-hydrolysis and Kraft cooking |
ES2737432T3 (es) * | 2011-05-13 | 2020-01-14 | Valmet Oy | Procedimiento compacto para producir pasta papelera prehidrolizada |
SE539706C2 (sv) * | 2014-11-07 | 2017-11-07 | Valmet Oy | Method for recovering hydrolysate |
SE538454C2 (sv) * | 2014-11-27 | 2016-07-12 | Valmet Oy | Method for displacement in batch digesters |
CN108031545B (zh) * | 2015-06-30 | 2020-12-08 | 安耐罗技术股份有限公司 | 具有杂质去除的改善的催化快速热解方法 |
SE542430C2 (sv) * | 2017-09-19 | 2020-04-28 | Domsjoe Fabriker Ab | Removal of inorganic elements from wood chips |
SE1950402A1 (sv) * | 2019-04-01 | 2020-10-02 | Valmet Oy | Method for extracting hemicellulose from lignocellulosic material |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3923591A (en) * | 1972-03-21 | 1975-12-02 | Process Evaluation Devel | Prehydrolysis and digestion of fibrous lignocellulosic material |
US4087318A (en) | 1974-03-14 | 1978-05-02 | Mo Och Domsjo Aktiebolag | Oxygen-alkali delignification of lignocellulosic material in the presence of a manganese compound |
SE380298B (sv) * | 1974-03-14 | 1975-11-03 | Mo | Forfarande for delignifiering genom syrgas-alkalibehandling av lignocelluosahaltigt material |
FI58360C (fi) * | 1974-06-14 | 1981-01-12 | Mo Och Domsjoe Ab | Foerfarande foer delignifiering av lignocellulosahaltigt material med hjaelp av syreinnehaollande gas och apparatur foer utfoerande av detta foerfarande |
US4198266A (en) | 1977-10-12 | 1980-04-15 | Airco, Inc. | Oxygen delignification of wood pulp |
US4436586A (en) | 1982-01-22 | 1984-03-13 | Kamyr, Inc. | Method of producing kraft pulp using an acid prehydrolysis and pre-extraction |
IN167959B (sv) * | 1985-08-05 | 1991-01-12 | Interox | |
US4826568A (en) | 1985-08-05 | 1989-05-02 | Interox (Societe Anonyme) | Process for delignification of cellulosic substances by pretreating with a complexing agent followed by peroxide prior to kraft digestion |
US4826567A (en) | 1985-08-05 | 1989-05-02 | Interox (Societe Anonyme) | Process for the delignification of cellulosic substances by pretreating with a complexing agent followed by hydrogen peroxide |
SE502667C2 (sv) | 1993-07-12 | 1995-12-04 | Kvaerner Pulping Tech | Behandling av fibermaterial med komplexbildare före kokning |
US5424417A (en) * | 1993-09-24 | 1995-06-13 | Midwest Research Institute | Prehydrolysis of lignocellulose |
FI103898B1 (sv) * | 1994-01-24 | 1999-10-15 | Sunds Defibrator Pori Oy | Förfarande för framställning av förhydrolyserad kemisk massa och/eller cellulosamassa |
FI102301B (sv) * | 1994-10-13 | 1998-11-13 | Andritz Oy | Förfarande för behandling av cellulosamassor |
-
1997
- 1997-12-08 FI FI974455A patent/FI122654B/sv not_active IP Right Cessation
-
1998
- 1998-11-18 EP EP98660126A patent/EP0921228B1/en not_active Expired - Lifetime
- 1998-11-18 AT AT98660126T patent/ATE287986T1/de active
- 1998-12-08 BR BR9805237-3A patent/BR9805237A/pt not_active Application Discontinuation
- 1998-12-08 JP JP10366128A patent/JPH11241285A/ja active Pending
-
2000
- 2000-06-08 US US09/589,706 patent/US6533896B1/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0921228B1 (en) | 2005-01-26 |
EP0921228A2 (en) | 1999-06-09 |
BR9805237A (pt) | 1999-11-09 |
ATE287986T1 (de) | 2005-02-15 |
FI122654B (sv) | 2012-05-15 |
US6533896B1 (en) | 2003-03-18 |
EP0921228A3 (en) | 2000-02-23 |
FI974455A0 (fi) | 1997-12-08 |
JPH11241285A (ja) | 1999-09-07 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
FI974455A (sv) | Förfarande för produktion av förrenad massa | |
FI103898B (sv) | Förfarande för framställning av förhydrolyserad kemisk massa och/eller cellulosamassa | |
SE9604111L (sv) | Förfarande och anordning för framställning av kemisk cellulosamassa | |
DK1364072T3 (da) | Fremgangsmåde til behandling af lignin- og celluloseholdigt råmateriale til foröget produktion af xylose og ethanol | |
FI933729A0 (fi) | Traedefibrering med aettikasyra genom att tillaegga myrsyror | |
NZ502621A (en) | Method and apparatus for pulp yield enhancement by adding dilution water and acidifying agent | |
BR9609008A (pt) | Processo de produção de polpa a partir de materiais de planta fibrosos, aparelho para a formação de polpa de materiais de planta fibrosos e polpa. | |
SE9903215D0 (sv) | Method in connection with the production of mechanical pulp | |
FI980995A0 (sv) | Förfarande för framställnig av massa | |
BR9703156A (pt) | Processo intermitente aperfeiçoado para a preparação de polpa kraft | |
EP0656966B1 (en) | Method of treating process water | |
ATE5268T1 (de) | Verfahren und mischung zur herstellung von cellulosepulpen. | |
SE9700283L (sv) | Framställningsprocess för pappersmassa | |
SE9101587D0 (sv) | Foerfarande foer framstaellning av kemitermomekanisk massa | |
FI923269A0 (sv) | Nytt sätt att behandla mekaniska massor | |
Young | Mechanical pulping innovations keep pace with strong market | |
TH18184A (th) | "กรรมวิธีการผลิตเยื่อกระดาษที่แยกสลายด้วยน้ำขั้นต้น" | |
TH16685B (th) | "กรรมวิธีการผลิตเยื่อกระดาษที่แยกสลายด้วยน้ำขั้นต้น" | |
MX9709857A (es) | Formacion de pulpa de organosolv modificado. | |
PL137833B2 (en) | Method of separation of rosin soaps from digesting liquors from the process of alkaline wood pulping | |
SE9602601D0 (sv) | Förfarande för blekning av mekanisk massa i minst två steg |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PC | Transfer of assignment of patent |
Owner name: GL&V FINANCE HUNGARY KFT. Free format text: GL&V FINANCE HUNGARY KFT. |
|
PC | Transfer of assignment of patent |
Owner name: OVIVO LUXEMBOURG S.à R.L. Free format text: OVIVO LUXEMBOURG S.à R.L. |
|
FG | Patent granted |
Ref document number: 122654 Country of ref document: FI Kind code of ref document: B |
|
MM | Patent lapsed |