ZA956506B - Alkaline sulphite pulping - Google Patents
Alkaline sulphite pulpingInfo
- Publication number
- ZA956506B ZA956506B ZA956506A ZA956506A ZA956506B ZA 956506 B ZA956506 B ZA 956506B ZA 956506 A ZA956506 A ZA 956506A ZA 956506 A ZA956506 A ZA 956506A ZA 956506 B ZA956506 B ZA 956506B
- Authority
- ZA
- South Africa
- Prior art keywords
- monosulphite
- solvent
- alkaline
- sulphite pulping
- alkaline sulphite
- 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
- 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
-
- 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
- D21C3/20—Pulping cellulose-containing materials with organic solvents or in solvent environment
-
- 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
- D21C3/222—Use of compounds accelerating the pulping processes
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Paper (AREA)
- Processing Of Solid Wastes (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
- Chemical Or Physical Treatment Of Fibers (AREA)
- Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
The present inventon relates to a sulphite fusion process for the production of celluloses using alkaline monosulphite solutions, organic solvents and quinone derivatives. The raw material to be fused is treated in a special impregnation step with either a solvent-free monosulphite solution or a solvent-water mixture.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT0165194A AT401068B (en) | 1994-08-26 | 1994-08-26 | SULFIT Digestion Process |
Publications (1)
Publication Number | Publication Date |
---|---|
ZA956506B true ZA956506B (en) | 1996-03-18 |
Family
ID=3518027
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ZA956506A ZA956506B (en) | 1994-08-26 | 1995-08-03 | Alkaline sulphite pulping |
Country Status (12)
Country | Link |
---|---|
EP (1) | EP0777780B1 (en) |
CN (1) | CN1160426A (en) |
AT (2) | AT401068B (en) |
BR (1) | BR9508634A (en) |
CA (1) | CA2198485A1 (en) |
DE (1) | DE59504281D1 (en) |
ES (1) | ES2126305T3 (en) |
FI (1) | FI970707A (en) |
ID (1) | ID15812A (en) |
RU (1) | RU2124083C1 (en) |
WO (1) | WO1996006974A1 (en) |
ZA (1) | ZA956506B (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1325723C (en) * | 2005-03-09 | 2007-07-11 | 中国制浆造纸研究院 | Wood method for pulping using cotton stalk, bush or brush |
BRPI0923405B1 (en) * | 2008-12-17 | 2018-07-17 | Borregaard As | lignocellulosic biomass conversion. |
CN104878638B (en) * | 2015-06-24 | 2017-09-15 | 济南圣泉集团股份有限公司 | The preparation method of cellulose, lignosulfonates |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3518005A1 (en) * | 1985-05-18 | 1986-11-20 | Kraftanlagen Ag, 6900 Heidelberg | SULFITE DIGESTIVE METHOD FOR PRODUCING CELLULAR FROM LIGNOCELLULOSE-CONTAINING MATERIALS WITH RECOVERY OF THE DIGESTIVE CHEMICALS |
DE4103572C2 (en) * | 1991-02-06 | 1995-11-23 | Organocell Ges Fuer Zellstoff | Process for delignifying plant fiber material |
AT398440B (en) * | 1991-10-25 | 1994-12-27 | Waagner Biro Ag | METHOD FOR RECOVERY OF CHEMICALS FROM THE COOKING LUG |
-
1994
- 1994-08-26 AT AT0165194A patent/AT401068B/en not_active IP Right Cessation
-
1995
- 1995-08-03 ZA ZA956506A patent/ZA956506B/en unknown
- 1995-08-25 AT AT95928394T patent/ATE173517T1/en not_active IP Right Cessation
- 1995-08-25 CN CN95194771A patent/CN1160426A/en active Pending
- 1995-08-25 CA CA002198485A patent/CA2198485A1/en not_active Abandoned
- 1995-08-25 EP EP95928394A patent/EP0777780B1/en not_active Expired - Lifetime
- 1995-08-25 ES ES95928394T patent/ES2126305T3/en not_active Expired - Lifetime
- 1995-08-25 DE DE59504281T patent/DE59504281D1/en not_active Expired - Fee Related
- 1995-08-25 RU RU97104473A patent/RU2124083C1/en active
- 1995-08-25 BR BR9508634A patent/BR9508634A/en not_active Application Discontinuation
- 1995-08-25 WO PCT/AT1995/000170 patent/WO1996006974A1/en active IP Right Grant
- 1995-08-26 ID IDP951678A patent/ID15812A/en unknown
-
1997
- 1997-02-19 FI FI970707A patent/FI970707A/en unknown
Also Published As
Publication number | Publication date |
---|---|
ID15812A (en) | 1997-08-14 |
EP0777780B1 (en) | 1998-11-18 |
BR9508634A (en) | 1997-12-30 |
FI970707A0 (en) | 1997-02-19 |
RU2124083C1 (en) | 1998-12-27 |
ATA165194A (en) | 1995-10-15 |
DE59504281D1 (en) | 1998-12-24 |
CN1160426A (en) | 1997-09-24 |
AT401068B (en) | 1996-06-25 |
CA2198485A1 (en) | 1996-03-07 |
FI970707A (en) | 1997-02-19 |
WO1996006974A1 (en) | 1996-03-07 |
ES2126305T3 (en) | 1999-03-16 |
EP0777780A1 (en) | 1997-06-11 |
ATE173517T1 (en) | 1998-12-15 |
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