BR8605554A - Processo para producao de papel e aparelho para a deslignificacao alcalina de materiais fibrosos ligno-celulosicos - Google Patents

Processo para producao de papel e aparelho para a deslignificacao alcalina de materiais fibrosos ligno-celulosicos

Info

Publication number
BR8605554A
BR8605554A BR8605554A BR8605554A BR8605554A BR 8605554 A BR8605554 A BR 8605554A BR 8605554 A BR8605554 A BR 8605554A BR 8605554 A BR8605554 A BR 8605554A BR 8605554 A BR8605554 A BR 8605554A
Authority
BR
Brazil
Prior art keywords
designification
ligno
alkaline
paper
production
Prior art date
Application number
BR8605554A
Other languages
English (en)
Portuguese (pt)
Inventor
Edward Francis Elton
Original Assignee
Edward Francis Elton
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 Edward Francis Elton filed Critical Edward Francis Elton
Publication of BR8605554A publication Critical patent/BR8605554A/pt

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

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
BR8605554A 1985-02-14 1986-02-12 Processo para producao de papel e aparelho para a deslignificacao alcalina de materiais fibrosos ligno-celulosicos BR8605554A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US70157185A 1985-02-14 1985-02-14
PCT/US1986/000308 WO1986004938A1 (en) 1985-02-14 1986-02-12 Method and apparatus for alkaline delignification of lignocellulosic fibrous materials

Publications (1)

Publication Number Publication Date
BR8605554A true BR8605554A (pt) 1987-04-22

Family

ID=24817884

Family Applications (1)

Application Number Title Priority Date Filing Date
BR8605554A BR8605554A (pt) 1985-02-14 1986-02-12 Processo para producao de papel e aparelho para a deslignificacao alcalina de materiais fibrosos ligno-celulosicos

Country Status (6)

Country Link
EP (1) EP0211945A4 (fi)
JP (1) JPS62501921A (fi)
BR (1) BR8605554A (fi)
CA (1) CA1275759C (fi)
FI (1) FI864154A (fi)
WO (1) WO1986004938A1 (fi)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
JP2002517173A (ja) * 1991-01-03 2002-06-11 ユニオン キャンプ パテント ホウルディング インコーポレイテッド 塩素を使用しないリグノセルロースパルプの漂白法
EP0530881A1 (en) * 1991-08-14 1993-03-10 Union Camp Patent Holding, Inc. Use of wash press for pulp alkali addition process
FI924751A (fi) * 1991-10-29 1993-04-30 Union Camp Patent Holding Tvaettpressmodifikation foer en syredelignifieringsmetod
AU7720094A (en) * 1993-09-02 1995-03-22 Union Camp Patent Holding, Inc. Improved method for bleaching lignocellulosic pulp
US10968194B2 (en) 2019-03-28 2021-04-06 Delta Separations, Llc Equipment and method for continuously processing plant material
SE546238C2 (en) * 2022-06-27 2024-07-23 Valmet Oy Method for processing cellulose pulp obtained from a kraft process

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE621517A (fi) * 1963-03-04
SE334286B (fi) * 1968-12-05 1971-04-19 Mo Och Domsjoe Ab
SE415581B (sv) * 1977-04-18 1980-10-13 Mo Och Domsjoe Ab Forfarande for perocidblekning av hogutbytesmassa
US4104114A (en) * 1977-05-05 1978-08-01 Erco Envirotech Ltd. Bleach plant operation
US4154644A (en) * 1978-02-27 1979-05-15 Georgia-Pacific Corporation Pulp washer
JPS54134103A (en) * 1978-04-07 1979-10-18 Sanyo Kokusaku Pulp Co Purifying of sulfite pulp
US4259150A (en) * 1978-12-18 1981-03-31 Kamyr Inc. Plural stage mixing and thickening oxygen bleaching process
US4298427A (en) * 1979-06-15 1981-11-03 Weyerhaeuser Company Method and apparatus for intimately mixing oxygen and pulp while using an alkali to extract bleaching by-products
US4444621A (en) * 1980-11-21 1984-04-24 Mo Och Domsjo Aktiebolag Process and apparatus for the deresination and brightness improvement of cellulose pulp
US4543155A (en) * 1983-01-31 1985-09-24 The Boc Group, Inc. Method for bleaching wood pulp including dissolving oxygen into the dilution water of an extraction stage
US4568420B1 (en) * 1984-12-03 1999-03-02 Int Paper Co Multi-stage bleaching process including an enhanced oxidative extraction stage

Also Published As

Publication number Publication date
EP0211945A1 (en) 1987-03-04
EP0211945A4 (en) 1987-07-06
FI864154A0 (fi) 1986-10-14
CA1275759C (en) 1990-11-06
JPS62501921A (ja) 1987-07-30
FI864154A (fi) 1986-10-14
WO1986004938A1 (en) 1986-08-28

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