SE506702C2 - Förbehandling av fibermaterial med in situ bildad vätesulfid - Google Patents
Förbehandling av fibermaterial med in situ bildad vätesulfidInfo
- Publication number
- SE506702C2 SE506702C2 SE9601643A SE9601643A SE506702C2 SE 506702 C2 SE506702 C2 SE 506702C2 SE 9601643 A SE9601643 A SE 9601643A SE 9601643 A SE9601643 A SE 9601643A SE 506702 C2 SE506702 C2 SE 506702C2
- Authority
- SE
- Sweden
- Prior art keywords
- liquor
- pretreatment
- alkali metal
- fibrous material
- liquid
- 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
- 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
- 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
- D21C11/00—Regeneration of pulp liquors or effluent waste waters
- D21C11/0064—Aspects concerning the production and the treatment of green and white liquors, e.g. causticizing green liquor
- D21C11/0071—Treatment of green or white liquors with gases, e.g. with carbon dioxide for carbonation; Expulsion of gaseous compounds, e.g. hydrogen sulfide, from these liquors by this treatment (stripping); Optional separation of solid compounds formed in the liquors by this treatment
-
- 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
- D21C3/022—Pulping cellulose-containing materials with inorganic bases or alkaline reacting compounds, e.g. sulfate processes in presence of S-containing compounds
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Paper (AREA)
- Glass Compositions (AREA)
Priority Applications (9)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9601643A SE506702C2 (sv) | 1996-04-30 | 1996-04-30 | Förbehandling av fibermaterial med in situ bildad vätesulfid |
AT97922238T ATE253661T1 (de) | 1996-04-30 | 1997-04-24 | Schwefelwasserstoff-vorbehandlung von lignocellulosematerial bei kontinuierlichen aufschlussverfahren |
CA002253301A CA2253301C (en) | 1996-04-30 | 1997-04-24 | Hydrogen sulphide pretreatment of lignocellulosic material in continuous pulping processes |
JP9538802A JP2000509115A (ja) | 1996-04-30 | 1997-04-24 | 製紙用パルプの製造方法 |
PCT/SE1997/000686 WO1997041294A1 (en) | 1996-04-30 | 1997-04-24 | Hydrogen sulphide pretreatment of lignocellulosic material in continuous pulping processes |
EP97922238A EP0896648B1 (en) | 1996-04-30 | 1997-04-24 | Hydrogen sulphide pretreatment of lignocellulosic material in continuous pulping processes |
DE69725976T DE69725976D1 (de) | 1996-04-30 | 1997-04-24 | Schwefelwasserstoff-vorbehandlung von lignocellulosematerial bei kontinuierlichen aufschlussverfahren |
BR9709122A BR9709122A (pt) | 1996-04-30 | 1997-04-24 | Pretamento de sulfeto de hidrogênio de material lignocelulosico em processos continuo de produção de polpa |
US08/960,271 US5976321A (en) | 1996-04-30 | 1997-10-29 | Process for making sulfur enhanced undigested cellulosic fiber material and pulp |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9601643A SE506702C2 (sv) | 1996-04-30 | 1996-04-30 | Förbehandling av fibermaterial med in situ bildad vätesulfid |
Publications (3)
Publication Number | Publication Date |
---|---|
SE9601643D0 SE9601643D0 (sv) | 1996-04-30 |
SE9601643L SE9601643L (sv) | 1997-10-31 |
SE506702C2 true SE506702C2 (sv) | 1998-02-02 |
Family
ID=20402396
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE9601643A SE506702C2 (sv) | 1996-04-30 | 1996-04-30 | Förbehandling av fibermaterial med in situ bildad vätesulfid |
Country Status (9)
Country | Link |
---|---|
US (1) | US5976321A (ja) |
EP (1) | EP0896648B1 (ja) |
JP (1) | JP2000509115A (ja) |
AT (1) | ATE253661T1 (ja) |
BR (1) | BR9709122A (ja) |
CA (1) | CA2253301C (ja) |
DE (1) | DE69725976D1 (ja) |
SE (1) | SE506702C2 (ja) |
WO (1) | WO1997041294A1 (ja) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE9703365D0 (sv) * | 1997-09-18 | 1997-09-18 | Kvaerner Pulping Tech | Method in connection with impregnation and digestion of lignocelulosic material |
JP4205855B2 (ja) * | 1997-09-18 | 2009-01-07 | ケムレック アクチボラグ | ポリサルファイドパルプ化プロセス |
SE518993E (sv) * | 2002-01-24 | 2009-08-28 | Metso Paper Sweden Ab | Framställning av cellulosamassa genom kokning med en kokvätska innehållande förindunstad 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 |
SE525065C2 (sv) * | 2003-04-17 | 2004-11-23 | Kvaerner Pulping Tech | Förbehandling av flis med sur vätska vid ångbasning |
US20050076568A1 (en) * | 2003-10-09 | 2005-04-14 | Stigsson Lars Lennart | Partial oxidation of cellulose spent pulping liquor |
US20110314726A1 (en) * | 2008-11-21 | 2011-12-29 | Hasan Jameel | Production of ethanol from lignocellulosic biomass using green liquor pretreatment |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3841962A (en) * | 1972-07-31 | 1974-10-15 | Mac Millan Bloedel Ltd | Hydrogen sulfide pretreatment of lignocellulosic materials in alkaline pulping processes |
SE407244B (sv) * | 1976-02-05 | 1979-03-19 | Mo Och Domsjoe Ab | Forfarande for framstellning av cellulosamassa av lovved i tva steg |
SE468600B (sv) * | 1991-12-16 | 1993-02-15 | Chemrec Ab | Saett att framstaella koklut med hoeg sulfiditet |
-
1996
- 1996-04-30 SE SE9601643A patent/SE506702C2/sv not_active IP Right Cessation
-
1997
- 1997-04-24 EP EP97922238A patent/EP0896648B1/en not_active Expired - Lifetime
- 1997-04-24 CA CA002253301A patent/CA2253301C/en not_active Expired - Fee Related
- 1997-04-24 BR BR9709122A patent/BR9709122A/pt not_active Application Discontinuation
- 1997-04-24 JP JP9538802A patent/JP2000509115A/ja active Pending
- 1997-04-24 AT AT97922238T patent/ATE253661T1/de not_active IP Right Cessation
- 1997-04-24 WO PCT/SE1997/000686 patent/WO1997041294A1/en active IP Right Grant
- 1997-04-24 DE DE69725976T patent/DE69725976D1/de not_active Expired - Lifetime
- 1997-10-29 US US08/960,271 patent/US5976321A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
CA2253301C (en) | 2008-01-29 |
EP0896648A1 (en) | 1999-02-17 |
WO1997041294A1 (en) | 1997-11-06 |
DE69725976D1 (de) | 2003-12-11 |
JP2000509115A (ja) | 2000-07-18 |
CA2253301A1 (en) | 1997-11-06 |
ATE253661T1 (de) | 2003-11-15 |
US5976321A (en) | 1999-11-02 |
SE9601643D0 (sv) | 1996-04-30 |
EP0896648B1 (en) | 2003-11-05 |
SE9601643L (sv) | 1997-10-31 |
BR9709122A (pt) | 1999-08-03 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
NUG | Patent has lapsed |