SE462288B - Behandling av kemiska massor i ett syrasteg foere en peroxidbehandling - Google Patents
Behandling av kemiska massor i ett syrasteg foere en peroxidbehandlingInfo
- Publication number
- SE462288B SE462288B SE8207356A SE8207356A SE462288B SE 462288 B SE462288 B SE 462288B SE 8207356 A SE8207356 A SE 8207356A SE 8207356 A SE8207356 A SE 8207356A SE 462288 B SE462288 B SE 462288B
- Authority
- SE
- Sweden
- Prior art keywords
- treatment
- acid
- pulp
- peroxide
- process according
- 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
-
- 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
- D21C9/1005—Pretreatment of the pulp, e.g. degassing the pulp
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8201603A FR2520397A1 (fr) | 1982-01-28 | 1982-01-28 | Procede pour le traitement de pates papetieres chimiques |
Publications (3)
Publication Number | Publication Date |
---|---|
SE8207356D0 SE8207356D0 (sv) | 1982-12-22 |
SE8207356L SE8207356L (sv) | 1983-07-29 |
SE462288B true SE462288B (sv) | 1990-05-28 |
Family
ID=9270561
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE8207356A SE462288B (sv) | 1982-01-28 | 1982-12-22 | Behandling av kemiska massor i ett syrasteg foere en peroxidbehandling |
Country Status (16)
Country | Link |
---|---|
JP (1) | JPS58132190A (ko) |
KR (1) | KR850001341B1 (ko) |
AT (1) | AT381736B (ko) |
BE (1) | BE895645A (ko) |
BR (1) | BR8300402A (ko) |
CA (1) | CA1206704A (ko) |
CH (1) | CH653720A5 (ko) |
DE (1) | DE3302580A1 (ko) |
ES (1) | ES8400520A1 (ko) |
FI (1) | FI76134C (ko) |
FR (1) | FR2520397A1 (ko) |
IT (1) | IT1162810B (ko) |
NO (1) | NO161391C (ko) |
OA (1) | OA07313A (ko) |
PT (1) | PT76145B (ko) |
SE (1) | SE462288B (ko) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2005059241A1 (en) * | 2003-12-18 | 2005-06-30 | Metso Paper, Inc. | Method for the acidification of pulp prior to ozone bleaching |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA1227304A (en) * | 1984-08-01 | 1987-09-29 | Raymond C. Francis | Delignification of pulp |
FR2593527B1 (fr) * | 1986-01-30 | 1988-03-25 | Centre Tech Ind Papier | Procede de blanchiment des pates mecaniques. |
DE69004492T3 (de) * | 1989-06-06 | 2001-11-15 | Eka Nobel Ab, Bohus | Verfahren zum Bleichen von Lignocellulose enthaltenden Zellstoffen. |
US5091054A (en) * | 1989-08-18 | 1992-02-25 | Degussa Corporation | Process for bleaching and delignification of lignocellulosic |
US5246543A (en) * | 1989-08-18 | 1993-09-21 | Degussa Corporation | Process for bleaching and delignification of lignocellulosic materials |
DE3937932A1 (de) * | 1989-11-15 | 1991-05-16 | Holtzmann & Cie Ag E | Verfahren zum delignifizieren und bleichen von ungebleichten zellstoffsuspensionen mit alkalichlorit |
SE9001481L (sv) * | 1990-04-23 | 1991-10-24 | Eka Nobel Ab | Reduktion av halogenorganiska foereningar i blekeriavlopp |
SE466061B (sv) * | 1990-04-23 | 1991-12-09 | Eka Nobel Ab | Blekning av kemisk massa genom behandling med foerst ett komplexbildande aemne och sedan ett peroxidinnehaallande aemne |
US6398908B1 (en) | 1991-04-30 | 2002-06-04 | Eka Nobel Ab | Process for acid bleaching of lignocellulose-containing pulp with a magnesium compound |
SE470065C (sv) * | 1991-04-30 | 1996-01-15 | Eka Nobel Ab | Behandling av kemisk massa med en syra och därefter en magnesium- och kalciumförening vid klorfri blekning |
SE500113C2 (sv) | 1992-07-09 | 1994-04-18 | Kamyr Ab | Sätt vid blekning av massa för omhändertagande av utlösta metaller |
SE512137C2 (sv) * | 1992-10-29 | 2000-01-31 | Eka Chemicals Ab | Förfarande för blekning av lignocellulosahaltig massa |
SE500616C2 (sv) * | 1993-06-08 | 1994-07-25 | Kvaerner Pulping Tech | Blekning av kemisk massa med peroxid vid övertryck |
US6776876B1 (en) | 1994-10-13 | 2004-08-17 | Andritz Oy | Method of treating cellulosic pulp to remove hexenuronic acid |
CA2211223C (en) | 1995-02-17 | 2002-04-30 | Ahlstrom Machinery Oy | Method of pretreating pulp to be bleached with peroxide |
US8080560B2 (en) | 2004-12-17 | 2011-12-20 | 3M Innovative Properties Company | Immune response modifier formulations containing oleic acid and methods |
US8889154B2 (en) | 2005-09-15 | 2014-11-18 | Medicis Pharmaceutical Corporation | Packaging for 1-(2-methylpropyl)-1H-imidazo[4,5-c] quinolin-4-amine-containing formulation |
US8980051B2 (en) | 2009-04-24 | 2015-03-17 | International Paper Company | Sulfonation of pulp produced by alkali pulping process |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1705897A (en) * | 1922-03-16 | 1929-03-19 | Bradley Linn | Bleaching of pulp |
FR1010501A (fr) * | 1948-08-31 | 1952-06-12 | Papiers Abadie Sa Des | Procédé de blanchîment des pâtes cellulosiques |
US2668095A (en) * | 1950-09-22 | 1954-02-02 | Du Pont | Bleaching chemical paper pulp |
FR1201712A (fr) * | 1958-07-11 | 1960-01-05 | Fr Du Xylon Soc | Perfectionnements au blanchiment des pâtes cellulosiques |
JPS51102103A (en) * | 1975-03-05 | 1976-09-09 | Nippon Parupu Kogyo Kk | Ryusanenhoparupuno hyohakuhoho |
FR2398839A1 (fr) * | 1977-07-29 | 1979-02-23 | Centre Tech Ind Papier | Procede de fabrication de pates papetieres chimiques |
DE2742262C2 (de) * | 1977-09-20 | 1982-06-09 | Degussa Ag, 6000 Frankfurt | Verfahren zur Herstellung eines mittel- bis hochviskosen Nadelholz-Sulfitzellstoffs |
JPS5685489A (en) * | 1979-12-10 | 1981-07-11 | Kogyo Gijutsuin | Pulp production |
-
1982
- 1982-01-28 FR FR8201603A patent/FR2520397A1/fr active Granted
- 1982-12-22 SE SE8207356A patent/SE462288B/sv unknown
- 1982-12-23 KR KR8205769A patent/KR850001341B1/ko active
-
1983
- 1983-01-07 IT IT67014/83A patent/IT1162810B/it active
- 1983-01-19 BE BE0/209926A patent/BE895645A/fr not_active IP Right Cessation
- 1983-01-25 CA CA000420203A patent/CA1206704A/fr not_active Expired
- 1983-01-26 PT PT76145A patent/PT76145B/pt not_active IP Right Cessation
- 1983-01-26 DE DE19833302580 patent/DE3302580A1/de active Granted
- 1983-01-27 FI FI830288A patent/FI76134C/fi not_active IP Right Cessation
- 1983-01-27 CH CH463/83A patent/CH653720A5/fr not_active IP Right Cessation
- 1983-01-27 BR BR8300402A patent/BR8300402A/pt not_active IP Right Cessation
- 1983-01-27 AT AT0026383A patent/AT381736B/de not_active IP Right Cessation
- 1983-01-27 ES ES519327A patent/ES8400520A1/es not_active Expired
- 1983-01-27 NO NO830268A patent/NO161391C/no unknown
- 1983-01-28 JP JP58011603A patent/JPS58132190A/ja active Granted
- 1983-01-28 OA OA57907A patent/OA07313A/xx unknown
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2005059241A1 (en) * | 2003-12-18 | 2005-06-30 | Metso Paper, Inc. | Method for the acidification of pulp prior to ozone bleaching |
Also Published As
Publication number | Publication date |
---|---|
NO161391B (no) | 1989-05-02 |
DE3302580A1 (de) | 1983-08-04 |
DE3302580C2 (ko) | 1992-07-02 |
IT1162810B (it) | 1987-04-01 |
CH653720A5 (fr) | 1986-01-15 |
SE8207356D0 (sv) | 1982-12-22 |
KR850001341B1 (ko) | 1985-09-19 |
FI76134B (fi) | 1988-05-31 |
BE895645A (fr) | 1983-07-19 |
FI830288A0 (fi) | 1983-01-27 |
SE8207356L (sv) | 1983-07-29 |
CA1206704A (fr) | 1986-07-02 |
OA07313A (fr) | 1984-08-31 |
JPS58132190A (ja) | 1983-08-06 |
IT8367014A0 (it) | 1983-01-07 |
PT76145B (fr) | 1985-11-25 |
JPH0217679B2 (ko) | 1990-04-23 |
FR2520397A1 (fr) | 1983-07-29 |
AT381736B (de) | 1986-11-25 |
FR2520397B1 (ko) | 1984-03-09 |
KR840002934A (ko) | 1984-07-21 |
BR8300402A (pt) | 1983-11-01 |
ES519327A0 (es) | 1983-10-16 |
PT76145A (fr) | 1983-02-01 |
FI830288L (fi) | 1983-07-29 |
ATA26383A (de) | 1986-04-15 |
ES8400520A1 (es) | 1983-10-16 |
NO830268L (no) | 1983-07-29 |
FI76134C (fi) | 1988-09-09 |
NO161391C (no) | 1989-08-09 |
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Legal Events
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NAL | Patent in force |
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