SE420329C - Forfarande for framstellning av slipmassa vid overtryck - Google Patents
Forfarande for framstellning av slipmassa vid overtryckInfo
- Publication number
- SE420329C SE420329C SE7801813A SE7801813A SE420329C SE 420329 C SE420329 C SE 420329C SE 7801813 A SE7801813 A SE 7801813A SE 7801813 A SE7801813 A SE 7801813A SE 420329 C SE420329 C SE 420329C
- Authority
- SE
- Sweden
- Prior art keywords
- pulp
- bleaching
- water
- steam
- bleach
- 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
-
- 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
Priority Applications (12)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE7801813A SE420329C (sv) | 1978-02-16 | 1978-02-16 | Forfarande for framstellning av slipmassa vid overtryck |
GB7830360A GB2014625B (en) | 1978-02-16 | 1978-07-19 | Method of producing groundwood pulp |
NO782600A NO148783C (no) | 1978-02-16 | 1978-07-28 | Fremgangsmaate ved fremstilling av slipmasse |
NZ188013A NZ188013A (en) | 1978-02-16 | 1978-07-31 | Groundwood pulp production |
FI782415A FI69881C (fi) | 1978-02-16 | 1978-08-07 | Foerfarande foer framstaellning av slipmassa |
AU38694/78A AU502062B1 (en) | 1978-02-16 | 1978-08-07 | Producing groundwood pulp |
DE2834909A DE2834909B2 (de) | 1978-02-16 | 1978-08-09 | Verfahren zur Herstellung von Holzschliff |
FR7823497A FR2417581A1 (fr) | 1978-02-16 | 1978-08-09 | Procede de fabrication de pate mecanique de matiere lignocellulosique |
JP10694078A JPS54111589A (en) | 1978-02-16 | 1978-08-30 | Method of making pulp |
BR7805664A BR7805664A (pt) | 1978-02-16 | 1978-08-31 | Processo de producao de polpa de madeira |
US05/954,715 US4207140A (en) | 1978-02-16 | 1978-10-25 | Method of producing groundwood pulp |
CA314,427A CA1074608A (fr) | 1978-02-16 | 1978-10-26 | Methode de fabrication de pate mecanique |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE7801813A SE420329C (sv) | 1978-02-16 | 1978-02-16 | Forfarande for framstellning av slipmassa vid overtryck |
Publications (3)
Publication Number | Publication Date |
---|---|
SE7801813L SE7801813L (sv) | 1979-08-17 |
SE420329B SE420329B (sv) | 1981-09-28 |
SE420329C true SE420329C (sv) | 1984-07-10 |
Family
ID=20334010
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE7801813A SE420329C (sv) | 1978-02-16 | 1978-02-16 | Forfarande for framstellning av slipmassa vid overtryck |
Country Status (12)
Country | Link |
---|---|
US (1) | US4207140A (fr) |
JP (1) | JPS54111589A (fr) |
AU (1) | AU502062B1 (fr) |
BR (1) | BR7805664A (fr) |
CA (1) | CA1074608A (fr) |
DE (1) | DE2834909B2 (fr) |
FI (1) | FI69881C (fr) |
FR (1) | FR2417581A1 (fr) |
GB (1) | GB2014625B (fr) |
NO (1) | NO148783C (fr) |
NZ (1) | NZ188013A (fr) |
SE (1) | SE420329C (fr) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE422088B (sv) * | 1978-11-24 | 1982-02-15 | Mo Och Domsjoe Ab | Forfarande for framstellning av slipmassa av lignocellolusahaltiga material |
SE433954B (sv) * | 1980-03-25 | 1984-06-25 | Mo Och Domsjoe Ab | Forfarande och anordning for reduktion av vid framstellning av slipmassa fran vedstockar i stenslipverk uppkomna grovre vedrester och spetor jemte reglering av massans freeness |
SE445051B (sv) * | 1980-04-10 | 1986-05-26 | Sca Development Ab | Sett vid tillverkning av mekanisk, i huvudsak hartsfri cellulosamassa |
SE434069B (sv) * | 1980-07-09 | 1984-07-02 | Mo Och Domsjoe Ab | Forfarande for framstellning av slipmassa |
FI61531C (fi) * | 1980-11-18 | 1982-08-10 | Tampella Oy Ab | Foerfarande foer foerbaettring av efteranvaendningen av vid tilverkningsprocessen foer slipmassa altstrad vaermeenergi |
SE451606B (sv) * | 1982-09-14 | 1987-10-19 | Sca Development Ab | Sett vid blekning av hogutbytesmassor medelst peroxider |
ZA837927B (en) * | 1983-05-23 | 1985-01-30 | Process Evaluation Devel | Thermomechanical digestion process using bleachants |
US4798652A (en) * | 1987-10-19 | 1989-01-17 | Peter Joyce | Peroxide bleaching of mechanical pulps |
DE3823837A1 (de) * | 1988-07-14 | 1990-01-18 | Feldmuehle Ag | Verfahren zum herstellen von holzschliff |
WO1997032077A1 (fr) * | 1996-02-27 | 1997-09-04 | Tetra Laval Holding & Finance S.A. | Procede de desinfection de fibres de papier, apres consommation, et produit fabrique a partir de ces fibres |
FI116575B (sv) * | 2004-06-28 | 2005-12-30 | Pom Technology Oy Ab | Förfarande och anordning vid pappersmaskin |
SE0602476L (sv) * | 2006-11-22 | 2007-08-21 | Metso Fiber Karlstad Ab | Metod för att återvinna värmeenergi från svartlut |
FI20215862A1 (en) * | 2021-08-17 | 2023-02-18 | Metsae Board Oyj | Process, uses thereof, pulp composition and system |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2413583A (en) * | 1945-08-11 | 1946-12-31 | St Regis Paper Co | Bleaching of groundwood |
SE318178B (fr) * | 1963-03-15 | 1969-12-01 | Anglo Paper Prod Ltd | |
AT244996B (de) * | 1963-08-26 | 1966-02-10 | Voith Gmbh J M | Wirbelabscheider |
SE341322B (fr) * | 1968-04-02 | 1971-12-20 | Defibrator Ab | |
US3808090A (en) * | 1970-10-01 | 1974-04-30 | F Luhde | Mechanical abrasion of wood particles in the presence of water and in an inert gaseous atmosphere |
BE792031A (fr) * | 1971-12-14 | 1973-03-16 | Mo Och Domsjoe Ab | Procede pour la preparation de pulpes mecaniques |
US4029543A (en) * | 1971-12-14 | 1977-06-14 | Mo Och Domsjo | Mechanically freeing wood fibers in the presence of spent peroxide bleaching liquor |
SE7317565L (fr) * | 1973-12-28 | 1975-06-30 | Selander Stig Daniel | |
SE413684C (sv) * | 1974-09-23 | 1987-05-07 | Mo Och Domsjoe Ab | Forfarande for framstellning av cellulosamassa i utbytesomradet 65-95 % |
SE403916B (sv) * | 1975-06-04 | 1978-09-11 | Rolf Bertil Reinhall | Anordning vid malapparater for lignocellulosahaltigt material |
SE413784B (sv) * | 1976-08-06 | 1980-06-23 | Isel Sa | Sett och anordning for att utnyttja i defibreringszonen utvecklat verme for att minimera angforbrukningen vid framstellning av massa for fiberskivor |
-
1978
- 1978-02-16 SE SE7801813A patent/SE420329C/sv not_active IP Right Cessation
- 1978-07-19 GB GB7830360A patent/GB2014625B/en not_active Expired
- 1978-07-28 NO NO782600A patent/NO148783C/no unknown
- 1978-07-31 NZ NZ188013A patent/NZ188013A/xx unknown
- 1978-08-07 FI FI782415A patent/FI69881C/fi not_active IP Right Cessation
- 1978-08-07 AU AU38694/78A patent/AU502062B1/en not_active Expired
- 1978-08-09 FR FR7823497A patent/FR2417581A1/fr active Granted
- 1978-08-09 DE DE2834909A patent/DE2834909B2/de active Granted
- 1978-08-30 JP JP10694078A patent/JPS54111589A/ja active Granted
- 1978-08-31 BR BR7805664A patent/BR7805664A/pt unknown
- 1978-10-25 US US05/954,715 patent/US4207140A/en not_active Expired - Lifetime
- 1978-10-26 CA CA314,427A patent/CA1074608A/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
NO782600L (no) | 1979-08-17 |
FI69881C (fi) | 1986-05-26 |
FI782415A (fi) | 1979-08-17 |
SE420329B (sv) | 1981-09-28 |
JPS5730438B2 (fr) | 1982-06-29 |
FR2417581B1 (fr) | 1982-05-14 |
GB2014625B (en) | 1982-04-07 |
GB2014625A (en) | 1979-08-30 |
US4207140A (en) | 1980-06-10 |
AU502062B1 (en) | 1979-07-12 |
DE2834909B2 (de) | 1979-12-13 |
DE2834909A1 (de) | 1979-08-23 |
BR7805664A (pt) | 1979-09-25 |
CA1074608A (fr) | 1980-04-01 |
NO148783B (no) | 1983-09-05 |
FR2417581A1 (fr) | 1979-09-14 |
FI69881B (fi) | 1985-12-31 |
JPS54111589A (en) | 1979-08-31 |
NZ188013A (en) | 1981-05-01 |
SE7801813L (sv) | 1979-08-17 |
DE2834909C3 (fr) | 1989-02-02 |
NO148783C (no) | 1983-12-14 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
FI63607B (fi) | Foerfarande foer framstaellning av cellulosamassor i utbytesomraodet 65-95 % | |
CA2668158C (fr) | Composition et methode ameliorant la qualite des fibres et l'efficacite du processus de production de pate mecanique | |
US4324612A (en) | Process for the preparation of groundwood pulp | |
SE420329C (sv) | Forfarande for framstellning av slipmassa vid overtryck | |
FI81132C (fi) | Foerfarande foer framstaellning av hoegutbytesmassa. | |
FI84634C (fi) | Foerfarande foer framstaellning av kemimekanisk eller semikemisk fibermassa i en en-fas impregneringsprocess. | |
JPS6231110B2 (fr) | ||
US5147503A (en) | Recycling waste cellulosic material with sodium sulphide digestion | |
CA2636454A1 (fr) | Procede pour ajouter une charge a une suspension de fibres | |
US4207139A (en) | Method for producing groundwood pulp | |
US5298118A (en) | Preparation of bleached chemithermomechanical pulp | |
JPH07505926A (ja) | 上質パルプ及び白い紙製品 | |
FI96522C (fi) | Menetelmä valkaistujen kemitermomekaanisten massojen valmistamiseksi | |
Yun et al. | Mg (OH) 2-based hydrogen peroxide bleaching of deinked pulp | |
FI71779C (fi) | Foerfarande foer framstaellning av mekanisk raffinoermassa. | |
FI71173C (fi) | Foerfarande foer framstaellning av blekt slipmassa | |
US20020148581A1 (en) | Processes for paper manufacture, useful for incorporating paper waste requiring a basic treatment into paper products | |
SE418628B (sv) | Forfarande for hartshaltsminskning vid framstellning av cellulosamassor ur lignocellulosamaterial | |
US1560591A (en) | Process for making paper pulp | |
EP0704002A1 (fr) | Procede de production de pate de cellulose | |
SE528369C2 (sv) | Metod och system för behandling av träflis |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
NUG | Patent has lapsed |
Ref document number: 7801813-2 Effective date: 19930912 Format of ref document f/p: F |