SE9700283L - Pulp making process - Google Patents
Pulp making processInfo
- Publication number
- SE9700283L SE9700283L SE9700283A SE9700283A SE9700283L SE 9700283 L SE9700283 L SE 9700283L SE 9700283 A SE9700283 A SE 9700283A SE 9700283 A SE9700283 A SE 9700283A SE 9700283 L SE9700283 L SE 9700283L
- Authority
- SE
- Sweden
- Prior art keywords
- alkaline
- making process
- pulp making
- aqueous
- cooking
- 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
- D21C3/003—Pulping cellulose-containing materials with organic 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
Abstract
A method for producing pulp from material containing lignocellulose by cooking in an alkaline, aqueous cooking liquid which contains one or more organic solvents having a low boiling point and one or more redox catalysts is disclosed, the method being characterized in that the alkaline aqueous cooking liquid also contains (an) alkaline sulphite compound(s) and (an) alkaline sulphide compound(s) in aqueous solution.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT0019696A AT404478B (en) | 1996-02-02 | 1996-02-02 | Cooking liquor containing low b.pt. solvents and quinone reducing catalysts - contains alkali sulphite(s) and sulphide(s) in aqueous solution |
Publications (2)
Publication Number | Publication Date |
---|---|
SE9700283D0 SE9700283D0 (en) | 1997-01-30 |
SE9700283L true SE9700283L (en) | 1997-08-03 |
Family
ID=3484037
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE9700283A SE9700283L (en) | 1996-02-02 | 1997-01-30 | Pulp making process |
Country Status (5)
Country | Link |
---|---|
AT (1) | AT404478B (en) |
BR (1) | BR9700837A (en) |
FI (1) | FI970419A (en) |
RU (1) | RU2135665C1 (en) |
SE (1) | SE9700283L (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES2737432T3 (en) * | 2011-05-13 | 2020-01-14 | Valmet Oy | Compact procedure to produce pre-rolled paper pulp |
US20140366870A1 (en) * | 2012-12-31 | 2014-12-18 | Api Intellectual Property Holdings, Llc | Methods for recovering and recycling salt byproducts in biorefinery processes |
US20140187759A1 (en) * | 2012-12-31 | 2014-07-03 | Api Intellectual Property Holdings, Llc | Biorefining processes and apparatus for separating cellulose hemicellulose, and lignin from biomass |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0211558A3 (en) * | 1985-07-26 | 1987-05-27 | Biodyne Chemicals, Inc. | Process for digesting lignocellulosic material |
GB8721528D0 (en) * | 1987-09-14 | 1987-10-21 | Shell Int Research | Pulping lignocellulose-containing material |
-
1996
- 1996-02-02 AT AT0019696A patent/AT404478B/en active
-
1997
- 1997-01-30 SE SE9700283A patent/SE9700283L/en not_active Application Discontinuation
- 1997-01-31 FI FI970419A patent/FI970419A/en unknown
- 1997-01-31 RU RU97101666A patent/RU2135665C1/en active
- 1997-01-31 BR BR9700837A patent/BR9700837A/en active Search and Examination
Also Published As
Publication number | Publication date |
---|---|
RU2135665C1 (en) | 1999-08-27 |
FI970419A0 (en) | 1997-01-31 |
SE9700283D0 (en) | 1997-01-30 |
FI970419A (en) | 1997-08-03 |
BR9700837A (en) | 1998-12-08 |
AT404478B (en) | 1998-11-25 |
ATA19696A (en) | 1998-04-15 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
FI103898B (en) | A process for producing prehydrolyzed pulp and / or pulp | |
FI974455A (en) | Process for the production of purified pulp | |
ES2038097T1 (en) | PROCEDURE FOR BLEACHING PAPER BINS THAT CONTAIN LIGNOCELLULOSE. | |
BR9206013A (en) | Process for delignification of material containing lignocellulose, bleaching and wastewater treatment through laccases with improved efficiency. | |
KR900018470A (en) | Regeneration method by biological deinking of highland | |
BR8103169A (en) | PROCESS FOR REGENERATION OF OLD PAPERS WITH ENCAPSULATED CONSTITUENTS | |
BR9609008A (en) | Pulp production process from fibrous plant materials, apparatus for pulping fibrous plant materials and pulp. | |
ATE132926T1 (en) | METHOD FOR DELIGNIFICATION OF CHEMICAL PULP | |
DE3669334D1 (en) | SULFITE DIGESTIVE METHOD FOR PRODUCING CELLULAR FROM LIGNOCELLULOSE-CONTAINING MATERIALS WITH RECOVERY OF THE DIGESTIVE CHEMICALS. | |
FI103902B1 (en) | A process for preparing high sulfide cooking liquors for cooking succinate pulp | |
BR9813951A (en) | Method for filling and coating cellulose fibers | |
SE9700283D0 (en) | Pulp making process | |
DE69001975T2 (en) | Process for the production of bleached, vegetable pulp. | |
FI971922A (en) | Method for recovering cellulose | |
JPS57500933A (en) | ||
MX167744B (en) | A METHOD FOR WASHING ALCLINE CELLULOSE PAPER PULP | |
BR9509738A (en) | Process to reduce contamination in a cellulosic liquor due to colloidal adhesion material derived from pulping or paint removal from cellulosic material | |
FI954113A (en) | Method for removing lignin from chemical pulp | |
DE59402342D1 (en) | Improved process for bleaching wood pulp | |
DK0431337T3 (en) | Process for de-icing the waste liquor obtained by cellulose pulping | |
ATE141922T1 (en) | DRYING PROCESS FOR PRODUCING ASCORBIC ACID-2-MONOPHOSPHATES | |
SE9301834D0 (en) | A PULP PRODUCTION PROCESS | |
MX9709857A (en) | Modified organosolv pulping. | |
DK0881326T3 (en) | Process for producing bleached special cellulose pulp | |
NO951464L (en) | Process for the treatment of sulfite pulp for bleaching with oxygen-containing chemicals |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
NAV | Patent application has lapsed |
Ref document number: 9700283-6 Format of ref document f/p: F |