SE8004184L - - Google Patents

Info

Publication number
SE8004184L
SE8004184L SE8004184A SE8004184A SE8004184L SE 8004184 L SE8004184 L SE 8004184L SE 8004184 A SE8004184 A SE 8004184A SE 8004184 A SE8004184 A SE 8004184A SE 8004184 L SE8004184 L SE 8004184L
Authority
SE
Sweden
Prior art keywords
stage
oxygen
consumed
amount
added
Prior art date
Application number
SE8004184A
Other languages
Unknown language ( )
English (en)
Other versions
SE421938B (sv
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 filed Critical
Priority to SE8004184A priority Critical patent/SE421938B/sv
Priority to NZ197165A priority patent/NZ197165A/xx
Priority to JP8555281A priority patent/JPS5725490A/ja
Priority to DE3122297A priority patent/DE3122297C2/de
Priority to US06/270,438 priority patent/US4439271A/en
Priority to NO811906A priority patent/NO156795C/no
Priority to AU71364/81A priority patent/AU547231B2/en
Priority to AT0251581A priority patent/AT375693B/de
Priority to FI811738A priority patent/FI69135C/fi
Priority to FR8111138A priority patent/FR2483972A1/fr
Priority to CA000379102A priority patent/CA1167207A/en
Publication of SE8004184L publication Critical patent/SE8004184L/
Publication of SE421938B publication Critical patent/SE421938B/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
    • D21C9/1005—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)
SE8004184A 1980-06-05 1980-06-05 Forfarande for behandling av cellulosamassa med kveveoxider fore syrgasblekning SE421938B (sv)

Priority Applications (11)

Application Number Priority Date Filing Date Title
SE8004184A SE421938B (sv) 1980-06-05 1980-06-05 Forfarande for behandling av cellulosamassa med kveveoxider fore syrgasblekning
NZ197165A NZ197165A (en) 1980-06-05 1981-05-21 Oxygen gas bleaching of pulps activated by no2/no mixture
JP8555281A JPS5725490A (en) 1980-06-05 1981-06-03 Bleaching of cellulose pulp by oxygen gas
DE3122297A DE3122297C2 (de) 1980-06-05 1981-06-04 Verfahren zur Ligninentfernung aus chemischen Zellstoffpulpen
US06/270,438 US4439271A (en) 1980-06-05 1981-06-04 Process for the oxygen bleaching of cellulose pulp
NO811906A NO156795C (no) 1980-06-05 1981-06-04 Fremgangsmaate ved delignifisering av cellulosemasse fremstilt ved kjemisk oppslutning av lignocelluloseholdig materiale.
AU71364/81A AU547231B2 (en) 1980-06-05 1981-06-04 Oxygen bleaching cellulose pulp
AT0251581A AT375693B (de) 1980-06-05 1981-06-04 Verfahren zum delignifizieren von zellulose -zellstoff
FI811738A FI69135C (fi) 1980-06-05 1981-06-04 Foerfarande foer syrgasblekning av cellulosamassa
FR8111138A FR2483972A1 (fr) 1980-06-05 1981-06-05 Procede de blanchissement au gaz oxygene de pate de cellulose
CA000379102A CA1167207A (en) 1980-06-05 1981-06-05 Process for the oxygen bleaching of cellulose pulp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8004184A SE421938B (sv) 1980-06-05 1980-06-05 Forfarande for behandling av cellulosamassa med kveveoxider fore syrgasblekning

Publications (2)

Publication Number Publication Date
SE8004184L true SE8004184L (de) 1981-12-06
SE421938B SE421938B (sv) 1982-02-08

Family

ID=20341137

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8004184A SE421938B (sv) 1980-06-05 1980-06-05 Forfarande for behandling av cellulosamassa med kveveoxider fore syrgasblekning

Country Status (11)

Country Link
US (1) US4439271A (de)
JP (1) JPS5725490A (de)
AT (1) AT375693B (de)
AU (1) AU547231B2 (de)
CA (1) CA1167207A (de)
DE (1) DE3122297C2 (de)
FI (1) FI69135C (de)
FR (1) FR2483972A1 (de)
NO (1) NO156795C (de)
NZ (1) NZ197165A (de)
SE (1) SE421938B (de)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE448006B (sv) * 1981-09-21 1987-01-12 Mo Och Domsjoe Ab Forfarande for blekning av cellulosamassa innefattande ett aktiveringssteg med kveveoxider
DE3213856C2 (de) * 1982-04-15 1984-05-10 Mo och Domsjö AB, 89191 Örnsköldsvik Verfahren zum Delignifizieren eines chemisch hergestellten Cellulosehalbstoffes
SE434283B (sv) * 1982-12-01 1984-07-16 Mo Och Domsjoe Ab Forfarande for delignifiering av cellulosamassa med kveveoxider och syrgas
SE451149B (sv) * 1983-01-26 1987-09-07 Mo Och Domsjoe Ab Apparatur for kontinuerlig behandling av vatteninnehallande lignocellulosamaterial med kveveoxid och syre
SE452176B (sv) * 1984-03-28 1987-11-16 Mo Och Domsjoe Ab Forfarande for framstellning av kveveoxider ur avlutar fran cellulosamassatillverkning
SE451023B (sv) * 1985-12-10 1987-08-24 Mo Och Domsjoe Ab Forfarande vid aktivering av lignocellulosamaterial med kvevedioxid innehallande gas
SE460543B (sv) * 1987-09-28 1989-10-23 Mo Och Domsjoe Ab Foerfarande vid aktivering av lignocellulosamaterial med kvaevedioxid innehaallande gas
US5409570A (en) * 1989-02-15 1995-04-25 Union Camp Patent Holding, Inc. Process for ozone bleaching of oxygen delignified pulp while conveying the pulp through a reaction zone
US5188708A (en) * 1989-02-15 1993-02-23 Union Camp Patent Holding, Inc. Process for high consistency oxygen delignification followed by ozone relignification
US5217574A (en) * 1989-02-15 1993-06-08 Union Camp Patent Holdings Inc. Process for oxygen delignifying high consistency pulp by removing and recycling pressate from alkaline pulp
US5211811A (en) * 1989-02-15 1993-05-18 Union Camp Patent Holding, Inc. Process for high consistency oxygen delignification of alkaline treated pulp followed by ozone delignification
US5173153A (en) * 1991-01-03 1992-12-22 Union Camp Patent Holding, Inc. Process for enhanced oxygen delignification using high consistency and a split alkali addition
US5085734A (en) * 1989-02-15 1992-02-04 Union Camp Patent Holding, Inc. Methods of high consistency oxygen delignification using a low consistency alkali pretreatment
US5525195A (en) * 1989-02-15 1996-06-11 Union Camp Patent Holding, Inc. Process for high consistency delignification using a low consistency alkali pretreatment
US5164044A (en) * 1990-05-17 1992-11-17 Union Camp Patent Holding, Inc. Environmentally improved process for bleaching lignocellulosic materials with ozone
US5441603A (en) * 1990-05-17 1995-08-15 Union Camp Patent Holding, Inc. Method for chelation of pulp prior to ozone delignification
US5164043A (en) * 1990-05-17 1992-11-17 Union Camp Patent Holding, Inc. Environmentally improved process for bleaching lignocellulosic materials with ozone
DE4203923A1 (de) * 1992-02-11 1993-08-12 Henkel Kgaa Verfahren zur herstellung von polycarboxylaten auf polysaccharid-basis
US5554259A (en) * 1993-10-01 1996-09-10 Union Camp Patent Holdings, Inc. Reduction of salt scale precipitation by control of process stream Ph and salt concentration
AU2003291874A1 (en) * 2003-06-03 2005-01-21 David Tarasenko Method for producing pulp and lignin
PL2462276T3 (pl) 2009-08-05 2015-04-30 Int Paper Co Dodatek do suchego arkusza z celulozowej masy puchowej
MY162376A (en) 2009-08-05 2017-06-15 Shell Int Research Method for monitoring a well
PL2462277T3 (pl) 2009-08-05 2015-04-30 Int Paper Co Proces stosowania kompozycji zawierającej trójwartościowy kation metalu i rozklejacz oraz arkusz pulpy puchowej uzyskany za jego pomocą
ES2952420T3 (es) 2010-07-20 2023-10-31 Int Paper Co Composición que contiene un metal catiónico multivalente y un agente antiestático que contiene amina y métodos de fabricación y uso
CN103003488B (zh) 2010-07-22 2015-04-15 国际纸业公司 使用阳离子型染料和解胶剂型表面活性剂制造绒毛浆片材的方法和由该方法制得的绒毛浆片材
CA3075029A1 (en) * 2017-09-11 2019-03-14 Solenis Technologies, L.P. Method for enhanced oxygen delignification of chemical wood pulps

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU419593A1 (ru) * 1971-11-30 1974-03-15 Г. Л. Аким , В. М. Никитин Способ отбелки целлюлозы
FR2158873A5 (en) * 1972-10-09 1973-06-15 Bourit Jean Pierre Bleaching of wood cellulose - using nitrogen oxides
US4076579A (en) * 1973-08-06 1978-02-28 The Regents Of The University Of California Pulping of lignocellulosic material by sequential treatment thereof with nitric oxide and oxygen
US4087318A (en) * 1974-03-14 1978-05-02 Mo Och Domsjo Aktiebolag Oxygen-alkali delignification of lignocellulosic material in the presence of a manganese compound
GB1505070A (en) * 1974-06-11 1978-03-22 Canadian Ind Process for bleaching of lignocellulosic material
CA1070909A (en) * 1976-05-04 1980-02-05 Canadian Industries Limited Nitrogen dioxide-oxygen delignification

Also Published As

Publication number Publication date
US4439271A (en) 1984-03-27
FR2483972B1 (de) 1983-10-28
FI69135C (fi) 1985-12-10
NO156795B (no) 1987-08-17
JPS6350465B2 (de) 1988-10-07
NZ197165A (en) 1983-09-30
CA1167207A (en) 1984-05-15
NO811906L (no) 1981-12-07
DE3122297A1 (de) 1982-04-01
AU7136481A (en) 1981-12-10
ATA251581A (de) 1984-01-15
SE421938B (sv) 1982-02-08
AT375693B (de) 1984-08-27
FI811738L (fi) 1981-12-06
FI69135B (fi) 1985-08-30
AU547231B2 (en) 1985-10-10
FR2483972A1 (fr) 1981-12-11
DE3122297C2 (de) 1984-04-12
NO156795C (no) 1987-11-25
JPS5725490A (en) 1982-02-10

Similar Documents

Publication Publication Date Title
SE8004184L (de)
JPS56128389A (en) Bleaching of pulp by organic peracid
DE3561165D1 (en) Process for bleaching mechanical pulp with hydrogen peroxide
FI875090A0 (fi) Foerbaettrat katalytiskt foerfarande foer framstaellning av vaeteperoxid av vaete och syre under anvaendande av en bromidpromotor.
AU8806982A (en) Controlled addition of alkaline chemicals to an oxygen delignification reaction
ATE48290T1 (de) Verfahren zur delignifizierung und bleiche von zellstoffen.
DE69212051D1 (de) Verfahren zur Herstellung von gebleichtem Hochausbeutepapierzellstoff
EP0660895A4 (de) Verfahren zur herstellung einer persäure enthaltenden oxydierenden auflösung und verfahren zum behandeln von substraten damit.
DE3163743D1 (en) Process for producing peroxides of bivalent metals
DK0401149T3 (da) Fremgangsmåde til delignificering af kemisk pulpmasse
AU565124B2 (en) Hypochlorite treatment of chemical paper pulps
FI882769A (fi) Styrning av peroxidblekning av olika traemassor.
AU6449286A (en) Process for bleaching chemical paper pulps
GB1505076A (en) Strenghening of mechanical pulp by chemical treatment
FI853492A0 (fi) Foerfarande foer delignifiering av sulfatcelluloser.
JPS6485387A (en) Delignification and bleaching of pulp
ES2004389A6 (es) Un metodo mejorado de deslignificacion y blanqueo secuenciales de pasta de papel lignocelulosica
ES443326A3 (es) Procedimiento de varias etapas para el blanqueo total, con poco consumo de cloro, de celulosa.
EP0607448A4 (en) Process for producing thiourea dioxide and bleaching of papermaking pulp with thiourea dioxide produced thereby.

Legal Events

Date Code Title Description
NAL Patent in force

Ref document number: 8004184-1

Format of ref document f/p: F

NUG Patent has lapsed

Ref document number: 8004184-1

Format of ref document f/p: F