SE8904313D0 - Vaeteperoxid-blekningsprocess - Google Patents

Vaeteperoxid-blekningsprocess

Info

Publication number
SE8904313D0
SE8904313D0 SE8904313A SE8904313A SE8904313D0 SE 8904313 D0 SE8904313 D0 SE 8904313D0 SE 8904313 A SE8904313 A SE 8904313A SE 8904313 A SE8904313 A SE 8904313A SE 8904313 D0 SE8904313 D0 SE 8904313D0
Authority
SE
Sweden
Prior art keywords
bleaching
hydrogen peroxide
vaeteperoxid
bleaching process
pulp
Prior art date
Application number
SE8904313A
Other languages
English (en)
Other versions
SE8904313L (sv
Inventor
T S Macas
Original Assignee
Canadian Ind
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Canadian Ind filed Critical Canadian Ind
Publication of SE8904313D0 publication Critical patent/SE8904313D0/sv
Publication of SE8904313L publication Critical patent/SE8904313L/sv

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)
SE8904313A 1988-12-23 1989-12-21 Vaeteperoxid-blekningsprocess SE8904313L (sv)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/289,309 US4915785A (en) 1988-12-23 1988-12-23 Single stage process for bleaching of pulp with an aqueous hydrogen peroxide bleaching composition containing magnesium sulphate and sodium silicate

Publications (2)

Publication Number Publication Date
SE8904313D0 true SE8904313D0 (sv) 1989-12-21
SE8904313L SE8904313L (sv) 1990-06-24

Family

ID=23110972

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8904313A SE8904313L (sv) 1988-12-23 1989-12-21 Vaeteperoxid-blekningsprocess

Country Status (12)

Country Link
US (1) US4915785A (sv)
JP (1) JPH03137287A (sv)
AU (1) AU623465B2 (sv)
CA (1) CA2005599A1 (sv)
FI (1) FI896119A0 (sv)
FR (1) FR2641010B1 (sv)
GB (1) GB2227759B (sv)
NO (1) NO895234L (sv)
NZ (1) NZ231760A (sv)
PT (1) PT92695B (sv)
SE (1) SE8904313L (sv)
ZA (1) ZA899502B (sv)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5118389A (en) * 1990-07-06 1992-06-02 Ici Canada Inc. Two-stage peroxide bleaching process using different amounts of peroxide on different portions of mechanical pulp
US5302245A (en) * 1991-04-02 1994-04-12 Vps Technology Partnership Integrated wastepaper treatment process
US5205907A (en) * 1991-11-25 1993-04-27 Macmillan Bloedel Limited Removal of manganese from pulp using a chelating agent and magnesium sulphate
US5223091A (en) * 1991-11-25 1993-06-29 Macmillan Bloedel Limited Method of brightening mechanical pulp using silicate-free peroxide bleaching
CA2082557C (en) * 1992-02-24 1997-03-11 Charles W. Hankins Integrated pulping process of waste paper yielding tissue-grade paper fibers
US5364465A (en) * 1992-12-07 1994-11-15 Archer Daniels Midland Company Method of producing protein products for bright paper coating applications
US5667575A (en) * 1995-09-21 1997-09-16 Eastman Chemical Company Process for reducing the color of an emulsion containing functionalized polyolefin wax
US6023065A (en) * 1997-03-10 2000-02-08 Alberta Research Council Method and apparatus for monitoring and controlling characteristics of process effluents
US6059927A (en) 1997-09-23 2000-05-09 Queen's University At Kingston Method of reducing brightness reversion and yellowness (B*) of bleached mechanical wood pulps
US6699358B1 (en) 1998-05-15 2004-03-02 National Silicates Partnership Method for brightening chemical pulp with hydrogen peroxide using a magnesium compound in silicate solution
EP1088130B1 (en) * 1998-05-15 2004-03-31 National Silicates Partnership Peroxide, oxygen, and peroxide/oxygen brightening of chemical and mixed waste pulps
US6325892B1 (en) 1998-09-23 2001-12-04 University Of New Brunswick Method of delignifying sulphite pulp with oxygen and borohydride
US7052578B2 (en) * 2000-01-28 2006-05-30 Martin Marietta Magnesia Specialties, Inc. Process employing magnesium hydroxide in peroxide bleaching of mechanical pulp
US6899790B2 (en) 2000-03-06 2005-05-31 Georgia-Pacific Corporation Method of providing papermaking fibers with durable curl
US6627041B2 (en) * 2000-03-06 2003-09-30 Georgia-Pacific Corporation Method of bleaching and providing papermaking fibers with durable curl
US7001484B2 (en) * 2000-05-04 2006-02-21 University Of New Brunswick Peroxide bleaching of wood pulp using stabilizers and sodium hydrosulfide reducing agent
US7297225B2 (en) * 2004-06-22 2007-11-20 Georgia-Pacific Consumer Products Lp Process for high temperature peroxide bleaching of pulp with cool discharge
US8138106B2 (en) 2005-09-30 2012-03-20 Rayonier Trs Holdings Inc. Cellulosic fibers with odor control characteristics
US7556696B2 (en) 2007-02-15 2009-07-07 Westinghouse Electric Co Llc Removal of niobium second phase particle deposits from pickled zirconium-niobium alloys
US9476014B2 (en) 2013-02-14 2016-10-25 II Joseph M. Galimi Method for cleaning surfaces
EP4305235A1 (en) * 2021-03-08 2024-01-17 Trifilon AB Apparatus and process for delignification and bleaching of fibres

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB758611A (en) * 1953-09-24 1956-10-03 Pennsylvania Salt Mfg Co Stabilization of solutions containing peroxygen compounds
BE633420A (sv) * 1962-07-16
CA783483A (en) * 1964-08-13 1968-04-23 Electric Reduction Company Of Canada Processes for bleaching cellulosic pulps
US3766078A (en) * 1971-06-03 1973-10-16 Monsanto Co Processes for stabilizing peroxy solutions
US4029543A (en) * 1971-12-14 1977-06-14 Mo Och Domsjo Mechanically freeing wood fibers in the presence of spent peroxide bleaching liquor
US3951594A (en) * 1972-11-27 1976-04-20 Pennwalt Corporation Hydrogen peroxide bleaching solutions and process
JPS583074B2 (ja) * 1975-11-17 1983-01-19 三菱瓦斯化学株式会社 パルプノ カサンカブツヒヨウハクホウ
AU539108B2 (en) * 1979-04-17 1984-09-13 Interox Societe Anonyme Delignification of unbleached chemical pulp

Also Published As

Publication number Publication date
FI896119A0 (fi) 1989-12-20
NO895234L (no) 1990-06-25
ZA899502B (en) 1990-09-26
JPH03137287A (ja) 1991-06-11
FR2641010A1 (sv) 1990-06-29
AU4715989A (en) 1990-06-28
SE8904313L (sv) 1990-06-24
NZ231760A (en) 1991-04-26
GB2227759A (en) 1990-08-08
FR2641010B1 (sv) 1992-03-13
GB2227759B (en) 1992-05-20
NO895234D0 (no) 1989-12-22
AU623465B2 (en) 1992-05-14
PT92695A (pt) 1990-06-29
CA2005599A1 (en) 1990-06-23
US4915785A (en) 1990-04-10
PT92695B (pt) 1995-09-12
GB8928875D0 (en) 1990-02-28

Similar Documents

Publication Publication Date Title
SE8904313D0 (sv) Vaeteperoxid-blekningsprocess
SE8504236D0 (sv) Forbettrad oxidativ extraktion
FR2457339B1 (sv)
DE3561165D1 (en) Process for bleaching mechanical pulp with hydrogen peroxide
CA2082185C (en) Protease catalyzed treatments of lignocellulose materials
ATE48290T1 (de) Verfahren zur delignifizierung und bleiche von zellstoffen.
GB8806206D0 (en) Process for bleaching mechanical wood pulp
GB1443765A (en) Method of producing cellulose pulp of high birghtness
ZA933906B (en) Method of bleaching paper pulp
NZ298222A (en) Bleaching filled paper with hydrogen peroxide, sodium borohydride, and/or sodium hydrosulphite
SE8200756L (sv) Sett att framstella kemimekanisk pappersmassa
SE8003911L (sv) Forfarande for syrgasblekning av cellulosamassa
NO902206D0 (no) Fremgangsmaate ved delignifisering av lignocellulosefibre.
ES2065007T3 (es) Procedimiento para blanquear material lignocelulosico.
MY102502A (en) A process for the manufature of cellulose pulps
SE7612248L (sv) Kokning av lignocellulosahaltiga material
FR2298642A1 (fr) Production de pate a papier mecanique blanchie a
GB1229269A (sv)
SE8501338D0 (sv) Pulping process
SE8700313L (sv) Forfarande for blekning av mekaniska massor
ES8503757A1 (es) Un metodo para mejorar la brillantez de una pulpa termomecanica.
SE8703541L (sv) Pappersmassakokning enligt sulfatmetoden i kombination med alkalisk oxygendelignifiering och aatfoeljande slutblekning
SE8902722D0 (sv) Metod foer styrning av en alkalisk cellulosakokning
MY107045A (en) Deinking and bleaching secondary fiber.
GB1074111A (en) Processes useful in the manufacture of bleached pulp

Legal Events

Date Code Title Description
NAV Patent application has lapsed

Ref document number: 8904313-7

Effective date: 19940812