FI920048A - FOERBEHANDLINGSFOERFARANDE FOER DEFIBRERING. - Google Patents
FOERBEHANDLINGSFOERFARANDE FOER DEFIBRERING. Download PDFInfo
- Publication number
- FI920048A FI920048A FI920048A FI920048A FI920048A FI 920048 A FI920048 A FI 920048A FI 920048 A FI920048 A FI 920048A FI 920048 A FI920048 A FI 920048A FI 920048 A FI920048 A FI 920048A
- Authority
- FI
- Finland
- Prior art keywords
- foerbehandlingsfoerfarande
- defibrering
- foer
- foerbehandlingsfoerfarande foer
- foer defibrering
- 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
- D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
- D21C9/10—Bleaching ; Apparatus therefor
- D21C9/1026—Other features in bleaching processes
- D21C9/1042—Use of chelating agents
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
- D21B1/00—Fibrous raw materials or their mechanical treatment
- D21B1/04—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres
- D21B1/12—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by wet methods, by the use of steam
- D21B1/14—Disintegrating in mills
- D21B1/16—Disintegrating in mills in the presence of chemical agents
-
- 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
- D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
- D21C9/10—Bleaching ; Apparatus therefor
- D21C9/16—Bleaching ; Apparatus therefor with per compounds
- D21C9/163—Bleaching ; Apparatus therefor with per compounds with peroxides
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Paper (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US63824491A | 1991-01-07 | 1991-01-07 |
Publications (2)
Publication Number | Publication Date |
---|---|
FI920048A0 FI920048A0 (en) | 1992-01-03 |
FI920048A true FI920048A (en) | 1992-07-08 |
Family
ID=24559219
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FI920048A FI920048A (en) | 1991-01-07 | 1992-01-03 | FOERBEHANDLINGSFOERFARANDE FOER DEFIBRERING. |
Country Status (9)
Country | Link |
---|---|
EP (1) | EP0494519A1 (en) |
AU (1) | AU660435B2 (en) |
BR (1) | BR9105643A (en) |
CA (1) | CA2057231A1 (en) |
FI (1) | FI920048A (en) |
MX (1) | MX9102773A (en) |
NO (1) | NO920082L (en) |
NZ (1) | NZ240910A (en) |
PT (1) | PT99980A (en) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7001484B2 (en) | 2000-05-04 | 2006-02-21 | University Of New Brunswick | Peroxide bleaching of wood pulp using stabilizers and sodium hydrosulfide reducing agent |
SE520874E (en) | 2001-11-30 | 2013-01-15 | Stfi Packforsk Ab | Removal of inorganic elements from wood chips before cooking to pulp |
US7384502B2 (en) * | 2002-12-24 | 2008-06-10 | Nippon Paper Industries Co., Ltd. | Process for impregnating, refining, and bleaching wood chips having low bleachability to prepare mechanical pulps having high brightness |
US8268122B2 (en) | 2005-12-02 | 2012-09-18 | Akzo Nobel N.V. | Process of producing high-yield pulp |
DE102007022754A1 (en) * | 2007-05-11 | 2008-11-13 | Voith Patent Gmbh | Method for reducing the heavy metal content of lignocellulosic raw material |
WO2010139589A1 (en) * | 2009-06-02 | 2010-12-09 | Akzo Nobel Chemicals International B.V. | Process for producing mechanical pulp |
CN101748634B (en) * | 2009-12-16 | 2011-09-14 | 陕西科技大学 | Improved APMP pulping method |
EP2348154A1 (en) * | 2010-01-22 | 2011-07-27 | Andritz AG | Method for manufacturing wooden material |
CN102242512A (en) * | 2011-04-30 | 2011-11-16 | 李刚荣 | Environmentally-friendly paper making and pulping technique and system with high yield |
US20130126109A1 (en) * | 2011-11-17 | 2013-05-23 | Buckman Laboratories International, Inc. | Silicate Free Refiner Bleaching |
CN103757955B (en) * | 2014-01-06 | 2016-08-24 | 南京林业大学 | A kind of APMP technique of improving improves the new method of pulp strength |
EP2949812A1 (en) * | 2014-05-27 | 2015-12-02 | Jokiel & Ullmann Consulting GbR | Mixture for preparing an impregnation liquor for the impregnation of papers and nonwoven hybrid fabrics |
SE542430C2 (en) * | 2017-09-19 | 2020-04-28 | Domsjoe Fabriker Ab | Removal of inorganic elements from wood chips |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3251731A (en) * | 1963-02-11 | 1966-05-17 | Andrew J Gard | Bleaching of wood pulp with a sequestering agent and hydrogen peroxide |
SE454186C (en) * | 1985-03-13 | 1989-09-25 | Eka Nobel Ab | SET FOR PREPARATION OF CHEMICAL MECHANICAL |
BR8606875A (en) * | 1985-09-20 | 1987-11-03 | Scott Paper Co | HIGH PERFORMANCE PULPPING PROCESS FOR LIGNOCELLULOSIC MATERIAL IN THE FORM OF HORSES; NON-SULPHONATED PULP; NON-SULPHONED PULP BEACH; NON-SULPHONED EUCALYPTUS PULP; |
US4849053A (en) * | 1985-09-20 | 1989-07-18 | Scott Paper Company | Method for producing pulp using pre-treatment with stabilizers and defibration |
US4960399A (en) * | 1988-07-14 | 1990-10-02 | Lyon Richard A | Diver's utility console |
-
1991
- 1991-12-06 CA CA 2057231 patent/CA2057231A1/en not_active Abandoned
- 1991-12-09 NZ NZ24091091A patent/NZ240910A/en unknown
- 1991-12-11 AU AU89609/91A patent/AU660435B2/en not_active Expired - Fee Related
- 1991-12-13 EP EP91311614A patent/EP0494519A1/en not_active Withdrawn
- 1991-12-23 MX MX9102773A patent/MX9102773A/en unknown
- 1991-12-30 BR BR919105643A patent/BR9105643A/en unknown
-
1992
- 1992-01-03 FI FI920048A patent/FI920048A/en not_active Application Discontinuation
- 1992-01-06 NO NO92920082A patent/NO920082L/en unknown
- 1992-01-06 PT PT9998092A patent/PT99980A/en not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
AU660435B2 (en) | 1995-06-29 |
NO920082D0 (en) | 1992-01-06 |
CA2057231A1 (en) | 1992-07-08 |
BR9105643A (en) | 1992-09-29 |
MX9102773A (en) | 1992-07-01 |
PT99980A (en) | 1993-01-29 |
NZ240910A (en) | 1992-10-28 |
NO920082L (en) | 1992-07-08 |
EP0494519A1 (en) | 1992-07-15 |
AU8960991A (en) | 1992-07-09 |
FI920048A0 (en) | 1992-01-03 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FD | Application lapsed |