FI67891B - Foerfarande foer behandling av den fraon en cellulosas kokningsprocess erhaollna cellulosan - Google Patents

Foerfarande foer behandling av den fraon en cellulosas kokningsprocess erhaollna cellulosan Download PDF

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Publication number
FI67891B
FI67891B FI830542A FI830542A FI67891B FI 67891 B FI67891 B FI 67891B FI 830542 A FI830542 A FI 830542A FI 830542 A FI830542 A FI 830542A FI 67891 B FI67891 B FI 67891B
Authority
FI
Finland
Prior art keywords
cellulose
cake
filter
bleaching
bleached
Prior art date
Application number
FI830542A
Other languages
English (en)
Finnish (fi)
Other versions
FI67891C (fi
FI830542L (fi
FI830542A0 (fi
Inventor
Juhani Haartti
Pertti Heitto
Jaakko-Juhani Helsto
Nuutti Vartiainen
Original Assignee
Larox Ag
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 Larox Ag filed Critical Larox Ag
Publication of FI830542A0 publication Critical patent/FI830542A0/fi
Priority to FI830542A priority Critical patent/FI67891C/fi
Priority to US06/578,127 priority patent/US4565602A/en
Priority to CA000447396A priority patent/CA1204254A/en
Priority to FR8402289A priority patent/FR2541330B1/fr
Priority to SE8400801A priority patent/SE461664B/sv
Priority to SU843711455A priority patent/SU1346051A3/ru
Priority to JP59028423A priority patent/JPS59157393A/ja
Publication of FI830542L publication Critical patent/FI830542L/fi
Application granted granted Critical
Publication of FI67891B publication Critical patent/FI67891B/fi
Publication of FI67891C publication Critical patent/FI67891C/fi

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
    • D21C9/18—De-watering; Elimination of cooking or pulp-treating liquors from the pulp
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D25/00—Filters formed by clamping together several filtering elements or parts of such elements
    • B01D25/12—Filter presses, i.e. of the plate or plate and frame type
    • B01D25/164—Chamber-plate presses, i.e. the sides of the filtering elements being clamped between two successive filtering plates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D25/00—Filters formed by clamping together several filtering elements or parts of such elements
    • B01D25/28—Leaching or washing filter cakes in the filter handling the filter cake for purposes other than regenerating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D25/00—Filters formed by clamping together several filtering elements or parts of such elements
    • B01D25/28—Leaching or washing filter cakes in the filter handling the filter cake for purposes other than regenerating
    • B01D25/282—Leaching or washing filter cakes in the filter handling the filter cake for purposes other than regenerating for drying
    • B01D25/284—Leaching or washing filter cakes in the filter handling the filter cake for purposes other than regenerating for drying by gases or by heating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D25/00—Filters formed by clamping together several filtering elements or parts of such elements
    • B01D25/28—Leaching or washing filter cakes in the filter handling the filter cake for purposes other than regenerating
    • B01D25/282—Leaching or washing filter cakes in the filter handling the filter cake for purposes other than regenerating for drying
    • B01D25/285—Leaching or washing filter cakes in the filter handling the filter cake for purposes other than regenerating for drying by compression using inflatable membranes
    • 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
    • D21C9/02—Washing ; Displacing cooking or pulp-treating liquors contained in the pulp by fluids, e.g. wash water or other pulp-treating agents
    • D21C9/06—Washing ; Displacing cooking or pulp-treating liquors contained in the pulp by fluids, e.g. wash water or other pulp-treating agents in filters ; Washing of concentrated pulp, e.g. pulp mats, on filtering surfaces
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)

Claims (6)

1. Förfarande för behandling av den frän en cellulosas koknings-process erhällna cellulosan vid framställning av papper, i vilket förfarande cellulosan avskiljes genom filtrering frän i kokningen uppkommet svartlut eller dylik avfallssuspension, varefter det tvättas, bleks och torkas, kännetecknad därav, att behandlingen utförs med ett tryckfilter (4) sä, att frän den tili ett pressutrymme (10) i filtret förda cellulosmassan, som uppfyller pressutrymmet, först avskiljes genom pressning svartlut eller annan dylik avfallssuspension, sedan tvättas den uppkomna cellulosakakan genom att lada tvättvätska tili filtret, därefter utförs blekningen av cellulosan genom att behandla cellulosakakan med en eller flere blekningskemikalier samt vid behov genom att tvätta kakan mellan de olika blekningsskedena, och slutligen torkas den blekta cellulosakakan och avlägsnas frän filtrets pressutrymme.
2. Förfarande enligt patentkravet 1, kännetecknad därav, att behandlingen utförs med ett kammarfilter (4), som omfattar ett filtreringstyg (11) och ett pressmembran (12), tili vilket pressutrymme beläget mellan deesa cellulosamassan leds.
3. Förfarande enligt patentkravet 1 eller 2, kännetecknad därav, att cellulosamassans tillförande tili filtret (4) och svartlutete avskiljning genom pressning utförs sä, att tjockle-ken hos den uppkomna cellulosakakan är 5-80 mm och torrämneshalten 10-80 %.
FI830542A 1983-02-17 1983-02-17 Foerfarande foer behandling av den fraon en cellulosas kokningsprocess erhaollna cellulosan FI67891C (fi)

Priority Applications (7)

Application Number Priority Date Filing Date Title
FI830542A FI67891C (fi) 1983-02-17 1983-02-17 Foerfarande foer behandling av den fraon en cellulosas kokningsprocess erhaollna cellulosan
US06/578,127 US4565602A (en) 1983-02-17 1984-02-08 Method for treating cellulose obtained from cellulose cooking process
CA000447396A CA1204254A (en) 1983-02-17 1984-02-14 Method for treating cellulose obtained from cellulose cooking process
FR8402289A FR2541330B1 (fr) 1983-02-17 1984-02-15 Procede pour le traitement de la cellulose issue d'un procede de lessivage de cellulose
SE8400801A SE461664B (sv) 1983-02-17 1984-02-15 Foerfarande foer efterbehandling av cellulosa
SU843711455A SU1346051A3 (ru) 1983-02-17 1984-02-16 Способ периодической обработки целлюлозы со стадии варки дл бумагоделательного производства
JP59028423A JPS59157393A (ja) 1983-02-17 1984-02-17 製紙用セルロ−ス蒸煮工程から得られたセルロ−スの処理方法

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI830542A FI67891C (fi) 1983-02-17 1983-02-17 Foerfarande foer behandling av den fraon en cellulosas kokningsprocess erhaollna cellulosan
FI830542 1983-02-17

Publications (4)

Publication Number Publication Date
FI830542A0 FI830542A0 (fi) 1983-02-17
FI830542L FI830542L (fi) 1984-08-18
FI67891B true FI67891B (fi) 1985-02-28
FI67891C FI67891C (fi) 1985-06-10

Family

ID=8516771

Family Applications (1)

Application Number Title Priority Date Filing Date
FI830542A FI67891C (fi) 1983-02-17 1983-02-17 Foerfarande foer behandling av den fraon en cellulosas kokningsprocess erhaollna cellulosan

Country Status (7)

Country Link
US (1) US4565602A (sv)
JP (1) JPS59157393A (sv)
CA (1) CA1204254A (sv)
FI (1) FI67891C (sv)
FR (1) FR2541330B1 (sv)
SE (1) SE461664B (sv)
SU (1) SU1346051A3 (sv)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH074490B2 (ja) * 1988-10-03 1995-01-25 月島機械株式会社 フィルタープレスを用いたケーキの均一置換洗浄法及びその装置
US5112502A (en) * 1988-10-03 1992-05-12 Tsukishima Kikai Co., Ltd. Homogeneous substitution method and apparatus for cake using filter press
AU6248394A (en) * 1993-02-19 1994-09-14 Reijo K. Salminen Wood pulp processing apparatus and method
US6004468A (en) * 1998-07-17 1999-12-21 Barbulescu; Adrian Serial drum apparatus and method for processing wet material
CA2352414A1 (fr) * 2001-07-05 2003-01-05 Industries Fournier Inc. Dispositif de controle et de retenue des gateaux dans un pressoir rotatif
US7651619B2 (en) * 2001-12-28 2010-01-26 Danmarks Tekniske Universitet (Dtu) Filtration method and apparatus
WO2006020543A2 (en) * 2004-08-09 2006-02-23 Prime Solution, Inc. Rotary fan press
CA2665719A1 (en) * 2005-10-28 2007-05-03 Prime Solution, Inc. Rotary fan press
US8662315B2 (en) * 2008-07-14 2014-03-04 Prime Solution, Inc. Rotary fan press
UA111729C2 (uk) * 2010-11-09 2016-06-10 Ґрінфілд Спешіалті Алкоголз Інк. Пристрій для відокремлення твердих речовин від рідини і спосіб обробки біомаси, який включає відокремлення твердих речовин від рідини
AU2013243202B2 (en) 2012-04-05 2017-06-15 Greenfield Specialty Alcohols Inc. Twin screw extruder press for solid/fluid separation
US10786763B2 (en) 2016-05-02 2020-09-29 Greenfield Specialty Alcohols Inc. Filter for extruder press

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US223670A (en) * 1880-01-20 Manufacture of paper-pulp from wood
US2772138A (en) * 1952-12-31 1956-11-27 Hercules Powder Co Ltd Continuous bleaching process
FI33212A (fi) * 1953-02-25 1963-04-19 Menetelmä paperi- ja selluloosateollisuudessa esiintyvien kuituaineitten muodostaman suspension ja kemikaalien välisten reaktioiden aikaansaamiseksi
FR1363465A (fr) * 1962-05-28 1964-06-12 Ciba Geigy Filtre-presse perfectionné
CA783483A (en) * 1964-08-13 1968-04-23 Electric Reduction Company Of Canada Processes for bleaching cellulosic pulps
US3564631A (en) * 1968-05-16 1971-02-23 Improved Machinery Inc Pulp treating apparatus and method
SU510549A1 (ru) * 1974-12-20 1976-04-15 Всесоюзное Научно-Исследовательское Объединение Целлюлозно-Бумажной Промышленности Установка дл промывки и отбелки целлюлозосодержащего материала
FR2423581A1 (fr) * 1978-04-21 1979-11-16 Bourit Jean Pierre Procede pour la fabrication de cellulose blanchie
EP0054015B1 (de) * 1980-11-20 1985-01-16 Simmering-Graz-Pauker Aktiengesellschaft Verfahren und Vorrichtung zur Gewinnung von Zellstoff
JPS6040558B2 (ja) * 1981-06-15 1985-09-11 日立造船株式会社 パルプの洗浄装置

Also Published As

Publication number Publication date
CA1204254A (en) 1986-05-13
US4565602A (en) 1986-01-21
JPH0424473B2 (sv) 1992-04-27
SU1346051A3 (ru) 1987-10-15
FI67891C (fi) 1985-06-10
FR2541330A1 (fr) 1984-08-24
FI830542L (fi) 1984-08-18
SE8400801L (sv) 1984-08-18
SE461664B (sv) 1990-03-12
JPS59157393A (ja) 1984-09-06
FR2541330B1 (fr) 1986-01-31
FI830542A0 (fi) 1983-02-17
SE8400801D0 (sv) 1984-02-15

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Owner name: LAROX OY