BR8007893A - Processo e aparelho para deslignificacao continua com oxigenio - Google Patents

Processo e aparelho para deslignificacao continua com oxigenio

Info

Publication number
BR8007893A
BR8007893A BR8007893A BR8007893A BR8007893A BR 8007893 A BR8007893 A BR 8007893A BR 8007893 A BR8007893 A BR 8007893A BR 8007893 A BR8007893 A BR 8007893A BR 8007893 A BR8007893 A BR 8007893A
Authority
BR
Brazil
Prior art keywords
pulp
reaction zone
delignification
reaction
carried out
Prior art date
Application number
BR8007893A
Other languages
English (en)
Inventor
H Eklund
L Markham
Original Assignee
Black Clawson Co
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 Black Clawson Co filed Critical Black Clawson Co
Publication of BR8007893A publication Critical patent/BR8007893A/pt

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/05—Stirrers
    • B01F27/11—Stirrers characterised by the configuration of the stirrers
    • B01F27/114—Helically shaped stirrers, i.e. stirrers comprising a helically shaped band or helically shaped band sections
    • B01F27/1143—Helically shaped stirrers, i.e. stirrers comprising a helically shaped band or helically shaped band sections screw-shaped, e.g. worms
    • 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
    • D21C9/1068—Bleaching ; Apparatus therefor with O2

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Paper (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)
  • Saccharide Compounds (AREA)
  • Oxygen, Ozone, And Oxides In General (AREA)
BR8007893A 1979-12-03 1980-12-02 Processo e aparelho para deslignificacao continua com oxigenio BR8007893A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/099,684 US4363697A (en) 1979-12-03 1979-12-03 Method for medium consistency oxygen delignification of pulp

Publications (1)

Publication Number Publication Date
BR8007893A true BR8007893A (pt) 1981-06-16

Family

ID=22276137

Family Applications (1)

Application Number Title Priority Date Filing Date
BR8007893A BR8007893A (pt) 1979-12-03 1980-12-02 Processo e aparelho para deslignificacao continua com oxigenio

Country Status (10)

Country Link
US (1) US4363697A (pt)
EP (1) EP0030158B1 (pt)
JP (1) JPS5691094A (pt)
AT (1) ATE3656T1 (pt)
AU (1) AU537466B2 (pt)
BR (1) BR8007893A (pt)
CA (1) CA1167205A (pt)
DE (1) DE3063633D1 (pt)
ES (1) ES497355A0 (pt)
FI (1) FI68274C (pt)

Families Citing this family (47)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ZA816105B (en) * 1980-09-05 1982-09-29 Black Clawson Co Process and apparatus for the delignification of pulp
US4699691A (en) * 1980-11-24 1987-10-13 W. R. Grace & Co. Thermomechanical digestion process
ZA821923B (en) * 1981-04-06 1983-02-23 Black Clawson Co Method and apparatus for oxygen delignification
EP0087412B1 (en) * 1981-09-04 1987-12-09 Weyerhaeuser Company Method and apparatus for mixing pulp with gases
US4431480A (en) * 1981-10-27 1984-02-14 The Black Clawson Company Method and apparatus for controlled addition of alkaline chemicals to an oxygen delignification reaction
JPS5940399U (ja) * 1982-09-08 1984-03-15 石川島播磨重工業株式会社 パルプ脱リグニン装置
ZA837927B (en) * 1983-05-23 1985-01-30 Process Evaluation Devel Thermomechanical digestion process using bleachants
JPH0768675B2 (ja) * 1986-10-13 1995-07-26 新王子製紙株式会社 セルロ−スパルプの酸素による脱リグニン、漂白方法
US4978426A (en) * 1987-02-24 1990-12-18 Westvaco Corporation Production of high strength linerboard with oxygen and alkali
FR2620744A1 (fr) * 1987-09-17 1989-03-24 Degremont Procede de traitement par l'ozone de materiaux ligno-cellulosiques, notamment de pates a papier et reacteur pour la mise en oeuvre de ce procede
JPH0672386B2 (ja) * 1988-04-26 1994-09-14 新王子製紙株式会社 セルロースパルプの酸素による脱リグニン、漂白方法
US5472572A (en) * 1990-10-26 1995-12-05 Union Camp Patent Holding, Inc. Reactor for bleaching high consistency pulp with ozone
US5181989A (en) * 1990-10-26 1993-01-26 Union Camp Patent Holdings, Inc. Reactor for bleaching high consistency pulp with ozone
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
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
US5525195A (en) * 1989-02-15 1996-06-11 Union Camp Patent Holding, Inc. Process for high consistency delignification using a low consistency alkali pretreatment
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
US5188708A (en) * 1989-02-15 1993-02-23 Union Camp Patent Holding, Inc. Process for high consistency oxygen delignification followed by ozone relignification
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
AT395180B (de) * 1989-08-16 1992-10-12 Andritz Ag Maschf Verfahren zur zerkleinerung von materialien und anlage zu dessen durchfuehrung
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
US5520783A (en) * 1990-10-26 1996-05-28 Union Camp Patent Holding, Inc. Apparatus for bleaching high consistency pulp with ozone
US5174861A (en) * 1990-10-26 1992-12-29 Union Camp Patent Holdings, Inc. Method of bleaching high consistency pulp with ozone
AR245799A1 (es) * 1990-10-26 1994-02-28 Union Camp Patent Holding Reactor y metodo para el blanqueo de pasta.
CA2046717A1 (en) * 1991-02-06 1992-08-07 Beloit Technologies, Inc. Method and apparatus for treating fibrous materials with a gaseous reagent
US5211809A (en) * 1991-05-21 1993-05-18 Air Products And Chemicals, Inc,. Dye removal in oxygen color stripping of secondary fibers
US5213661A (en) * 1991-05-21 1993-05-25 Air Products And Chemicals, Inc. Oxygen alkali detackification in secondary fiber recovery
US5178502A (en) * 1991-05-24 1993-01-12 Huck International, Inc. High strength blind bolt
DE69221385T2 (de) * 1991-05-24 1997-12-11 Union Camp Patent Holding, Inc., Wilmington, Del. Zweistufiger Reaktor zum Bleichen von Zellstoff und Verfahren zum Bleichen mit Ozon
US5460696A (en) * 1993-08-12 1995-10-24 The Boc Group, Inc. Oxygen delignification method incorporating wood pulp mixing apparatus
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
CN1203644A (zh) * 1995-12-07 1998-12-30 贝洛特工艺技术公司 中等稠度纸浆的氧化去木质作用
JPH08325970A (ja) * 1996-06-24 1996-12-10 New Oji Paper Co Ltd セルロースパルプの酸素による脱リグニン、漂白方法
DE19639110C2 (de) * 1996-09-24 1999-10-21 Voith Sulzer Stoffaufbereitung Verfahren zur Erhöhung des Weißgrades von Papierfaserstoff
SE522593C2 (sv) * 1999-07-06 2004-02-24 Kvaerner Pulping Tech System och förfarande för syragasdelignifiering av massa av lignocellulosahaltigt material
GB0119237D0 (en) * 2001-08-07 2001-10-03 Bioregional Minimills Uk Ltd Paper plant
US20060201641A1 (en) * 2001-08-07 2006-09-14 Bioregional Minimills (Uk) Limited Methods for producing pulp and treating black liquor
JP2003119679A (ja) * 2001-10-17 2003-04-23 Aikawa Iron Works Co Ltd パルプ加熱装置
SE0403202L (sv) * 2004-12-30 2005-10-25 Kvaerner Pulping Tech Metod för syrgasdelignifiering av cellulosamassa med inmixning av kemikalier vid högt tryck
US7699177B2 (en) * 2006-03-20 2010-04-20 Parkson Corporation Method and apparatus for washing sand
TW201610261A (zh) * 2014-05-20 2016-03-16 喬治亞太平洋消費者產品公司 非木材纖維之漂白及植物性雜質減量方法
TW201544652A (zh) 2014-05-20 2015-12-01 Georgia Pacific Consumer Prod 非木材纖維之漂白及植物性雜質減量方法
TW201610265A (zh) 2014-05-20 2016-03-16 喬治亞太平洋消費者產品公司 非木材纖維之漂白及植物性雜質減量方法
GB202103185D0 (en) * 2021-03-08 2021-04-21 Trifilon Ab Reaction chamber, processing system and processsing method

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE380224A (pt) * 1922-03-13
US2953202A (en) * 1955-07-15 1960-09-20 Pandia Inc Continuous digester
GB818828A (en) 1956-07-10 1959-08-26 Scott Paper Co Process for bleaching cellulosic pulp
BE630337A (pt) * 1962-03-30
CA918978A (en) * 1970-01-08 1973-01-16 G. Jamieson Allan Oxygen bleaching
CA929711A (en) * 1971-03-08 1973-07-10 O. Samuelson Hans Treating cellulosic materials with alkali and oxygen
SE379069B (pt) * 1973-08-27 1975-09-22 Kamyr Ab
US3966542A (en) * 1974-09-20 1976-06-29 General Signal Corporation Multi-stage bleaching of pulp using successively lower power levels
FR2319737A1 (fr) * 1975-07-31 1977-02-25 Creusot Loire Procede et machine de fabrication de pate a papier
JPS5331964A (en) * 1976-09-06 1978-03-25 Nippon Telegr & Teleph Corp <Ntt> Production of semiconductor substrates
US4198266A (en) 1977-10-12 1980-04-15 Airco, Inc. Oxygen delignification of wood pulp
US4259150A (en) * 1978-12-18 1981-03-31 Kamyr Inc. Plural stage mixing and thickening oxygen bleaching process
US4248662A (en) * 1979-01-22 1981-02-03 The Black Clawson Company Oxygen pulping with recycled liquor

Also Published As

Publication number Publication date
FI68274C (fi) 1985-08-12
FI68274B (fi) 1985-04-30
EP0030158A1 (en) 1981-06-10
ES8200158A1 (es) 1981-10-16
AU6469480A (en) 1981-06-11
ATE3656T1 (de) 1983-06-15
AU537466B2 (en) 1984-06-28
US4363697A (en) 1982-12-14
FI803722L (fi) 1981-06-04
JPS5691094A (en) 1981-07-23
ES497355A0 (es) 1981-10-16
CA1167205A (en) 1984-05-15
DE3063633D1 (en) 1983-07-07
EP0030158B1 (en) 1983-06-01

Similar Documents

Publication Publication Date Title
BR8007893A (pt) Processo e aparelho para deslignificacao continua com oxigenio
SE8804578D0 (sv) Saett vid kontinuerlig uppslutningskokning av cellulosahaltigt fibermaterial
SE7400547L (pt)
ES528138A0 (es) Procedimiento para el blanqueo con peroxido de material conteniendo lignocelulosa
GB1328724A (en) Apparatus for and method of agitating liquids
ATE124292T1 (de) Gerät zum mischen von flüssigkeiten für die zubereitung von wasser mit variablem kohlensäuregehalt.
Hartler et al. Oxygen-alkali bleaching of sulphate pulp
GB1388333A (en) Process for dyeing cellulosic material
IL66958A0 (en) Livestock feed of high nutrient value and process and apparatus for its production
FR2292070A1 (fr) Procede pour la coloration des fibres synthetiques a base de polyesters aromatiques et nouveaux colorants monoazoiques utilisables a cet effet
KR890016222A (ko) 인피질 천연섬유의 정련방법
FI854148A0 (fi) Foerfarande foer behandling av pappersmassor foer blekning av desamma.
SU582434A1 (ru) Устройство дл уплотнени вращающихс вертикальных валов
PT83117B (pt) Processo para a deslenhificacao de materias celulosicas
SE8803705D0 (sv) Saett vid oxygenblekning
SE8002723L (sv) Forbettrad blekningssekvens
ES2001611A6 (es) Un aparato para ensartar automaticamente pequenos miembros perforados de forma generalmente esferica o cilindrica
NZ194113A (en) Delignification process using nitroanthraquinone additives
PT83118B (pt) Processo para a deslenhificacao de materias celulosicas
KR870003707A (ko) 솜사탕껌 제조방법
BE844908A (fr) Procede continu de production de zones rongees en blanc ou en couleur sur des fibres de cellulose
FR2281455A1 (fr) Procede et appareil de trituration de matieres premieres cellulosiques
JPS5227825A (en) Process for producing acrylonitrile fibers