OA06515A - Procédé de délignification de pâte à papier chimique écrue. - Google Patents
Procédé de délignification de pâte à papier chimique écrue.Info
- Publication number
- OA06515A OA06515A OA57086A OA57086A OA06515A OA 06515 A OA06515 A OA 06515A OA 57086 A OA57086 A OA 57086A OA 57086 A OA57086 A OA 57086A OA 06515 A OA06515 A OA 06515A
- Authority
- OA
- OAPI
- Prior art keywords
- delignification
- chemical pulp
- unbleached chemical
- unbleached
- pulp
- 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
- D21C9/16—Bleaching ; Apparatus therefor with per compounds
- D21C9/163—Bleaching ; Apparatus therefor with per compounds with peroxides
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7909642A FR2454479A1 (fr) | 1979-04-17 | 1979-04-17 | Procede de delignification de pate a papier chimique |
FR8007170A FR2479295A2 (fr) | 1980-03-31 | 1980-03-31 | Procede de delignification de pate a papier chimique ecrue |
Publications (1)
Publication Number | Publication Date |
---|---|
OA06515A true OA06515A (fr) | 1981-07-31 |
Family
ID=26221114
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
OA57086A OA06515A (fr) | 1979-04-17 | 1980-04-16 | Procédé de délignification de pâte à papier chimique écrue. |
Country Status (9)
Country | Link |
---|---|
US (1) | US4462864A (fr) |
EP (1) | EP0018287B1 (fr) |
AU (1) | AU539108B2 (fr) |
BR (1) | BR8002356A (fr) |
CA (1) | CA1151363A (fr) |
DE (1) | DE3061582D1 (fr) |
FI (1) | FI67242B (fr) |
NZ (1) | NZ193456A (fr) |
OA (1) | OA06515A (fr) |
Families Citing this family (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE445051B (sv) * | 1980-04-10 | 1986-05-26 | Sca Development Ab | Sett vid tillverkning av mekanisk, i huvudsak hartsfri cellulosamassa |
US4559103A (en) * | 1982-08-05 | 1985-12-17 | Honshu Seishi Kabushiki Kaisha | Packaging paper and packaging material for packaging metallic material and method of producing the same |
SE451606B (sv) * | 1982-09-14 | 1987-10-19 | Sca Development Ab | Sett vid blekning av hogutbytesmassor medelst peroxider |
US4649113A (en) * | 1983-12-28 | 1987-03-10 | The United States Of America As Represented By The Secretary Of Agriculture | Alkaline peroxide treatment of nonwoody lignocellulosics |
US4806475A (en) * | 1983-12-28 | 1989-02-21 | The United States Of America As Represented By The Secretary Of Agriculture | Alkaline peroxide treatment of agricultural byproducts |
SE444825B (sv) * | 1984-09-10 | 1986-05-12 | Mo Och Domsjoe Ab | Forfarande for framstellning av forbettrad hogutbytesmassa |
US4568420B1 (en) * | 1984-12-03 | 1999-03-02 | Int Paper Co | Multi-stage bleaching process including an enhanced oxidative extraction stage |
US4793898A (en) * | 1985-02-22 | 1988-12-27 | Oy Keskuslaboratorio - Centrallaboratorium Ab | Process for bleaching organic peroxyacid cooked material with an alkaline solution of hydrogen peroxide |
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 |
US4965086A (en) * | 1988-01-04 | 1990-10-23 | Degussa Aktiengesellschaft | Chemical-mechanical treatment of lignocellulosics to improve nutritive value |
US4842877A (en) * | 1988-04-05 | 1989-06-27 | Xylan, Inc. | Delignification of non-woody biomass |
US5023097A (en) * | 1988-04-05 | 1991-06-11 | Xylan, Inc. | Delignification of non-woody biomass |
US4957599A (en) * | 1988-04-15 | 1990-09-18 | E. I. Du Pont De Nemours And Company | Alkaline extraction, peroxide bleaching of nonwoody lignocellulosic substrates |
US4859283A (en) * | 1988-04-15 | 1989-08-22 | E. I. Du Pont De Nemours And Company | Magnesium ions in a process for alkaline peroxide treatment of nonwoody lignocellulosic substrates |
EP0337653A3 (fr) * | 1988-04-15 | 1991-10-02 | E.I. Du Pont De Nemours And Company | Traitement alcalin au peroxyde de substrats lignocellulosiques non-ligneux |
US4859282A (en) * | 1988-04-15 | 1989-08-22 | E. I. Du Pont De Nemours And Company | Acid purification of product from alkaline peroxide processing of nonwoody lignocellulosic substrates |
US4915785A (en) * | 1988-12-23 | 1990-04-10 | C-I-L Inc. | Single stage process for bleaching of pulp with an aqueous hydrogen peroxide bleaching composition containing magnesium sulphate and sodium silicate |
CA2082557C (fr) * | 1992-02-24 | 1997-03-11 | Charles W. Hankins | Procede de desintegration integre de dechets de papier produisant des fibres de papier de categorie hygienique |
BE1008751A3 (fr) | 1994-07-26 | 1996-07-02 | Solvay | Xylanase, microorganismes la produisant, molecules d'adn, procedes de preparation de cette xylanase et utilisations de celle-ci. |
US5770010A (en) * | 1995-04-20 | 1998-06-23 | R-J Holding Company | Pulping process employing nascent oxygen |
US7747434B2 (en) * | 2000-10-24 | 2010-06-29 | Speech Conversion Technologies, Inc. | Integrated speech recognition, closed captioning, and translation system and method |
US8138106B2 (en) | 2005-09-30 | 2012-03-20 | Rayonier Trs Holdings Inc. | Cellulosic fibers with odor control characteristics |
US7967948B2 (en) * | 2006-06-02 | 2011-06-28 | International Paper Company | Process for non-chlorine oxidative bleaching of mechanical pulp in the presence of optical brightening agents |
US8314231B2 (en) * | 2007-05-07 | 2012-11-20 | Hydrite Chemical Co. | Systems, compositions, and/or methods for depolymerizing cellulose and/or starch |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA558246A (fr) * | 1958-06-03 | L. Mcewen Robert | Decoloration de la pulpe a haute temperature | |
NO117673B (fr) * | 1962-02-14 | 1969-09-08 | Svenska Cellulosa Ab | |
DE1203592B (de) * | 1962-02-23 | 1965-10-21 | Rudolf Bott Dipl Ing | Verfahren zum Bleichen von cellulosehaltigen Faserstoffen |
DE2219505C3 (de) * | 1972-04-21 | 1974-10-17 | Deutsche Gold- Und Silber-Scheideanstalt Vormals Roessler, 6000 Frankfurt | Chlorfreie Mehrstufenbleiche von Zellstoff |
SE413684C (sv) * | 1974-09-23 | 1987-05-18 | Mo Och Domsjoe Ab | Forfarande for framstellning av cellulosamassa i utbytesomradet 65-95 % |
SE415581B (sv) * | 1977-04-18 | 1980-10-13 | Mo Och Domsjoe Ab | Forfarande for perocidblekning av hogutbytesmassa |
SE422818B (sv) * | 1978-03-31 | 1982-03-29 | Modo Chemetrics Ab | Forfarande for foredling av allulosamassa genom blekning eller extrahering |
-
1980
- 1980-04-15 CA CA000349872A patent/CA1151363A/fr not_active Expired
- 1980-04-15 AU AU57450/80A patent/AU539108B2/en not_active Ceased
- 1980-04-16 DE DE8080400516T patent/DE3061582D1/de not_active Expired
- 1980-04-16 FI FI801211A patent/FI67242B/fi not_active Application Discontinuation
- 1980-04-16 BR BR8002356A patent/BR8002356A/pt not_active IP Right Cessation
- 1980-04-16 OA OA57086A patent/OA06515A/fr unknown
- 1980-04-16 NZ NZ193456A patent/NZ193456A/xx unknown
- 1980-04-16 EP EP80400516A patent/EP0018287B1/fr not_active Expired
-
1982
- 1982-04-14 US US06/368,142 patent/US4462864A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
NZ193456A (en) | 1982-06-29 |
FI67242B (fi) | 1984-10-31 |
FI801211A (fi) | 1980-10-18 |
AU539108B2 (en) | 1984-09-13 |
EP0018287A1 (fr) | 1980-10-29 |
AU5745080A (en) | 1980-10-23 |
CA1151363A (fr) | 1983-08-09 |
BR8002356A (pt) | 1980-12-02 |
US4462864A (en) | 1984-07-31 |
EP0018287B1 (fr) | 1983-01-12 |
DE3061582D1 (en) | 1983-02-17 |
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