DE573892T1 - Reaktorsystem zur Behandlung von Zellulosezellstoff. - Google Patents

Reaktorsystem zur Behandlung von Zellulosezellstoff.

Info

Publication number
DE573892T1
DE573892T1 DE0573892T DE93108878T DE573892T1 DE 573892 T1 DE573892 T1 DE 573892T1 DE 0573892 T DE0573892 T DE 0573892T DE 93108878 T DE93108878 T DE 93108878T DE 573892 T1 DE573892 T1 DE 573892T1
Authority
DE
Germany
Prior art keywords
treatment
reactor system
cellulose pulp
pulp
unique
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
DE0573892T
Other languages
English (en)
Inventor
Costa Danilo Silva
Pita Pedro Mauro
Vincent Louis Magnotta
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Air Products and Chemicals Inc
Original Assignee
Air Products and Chemicals Inc
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 Air Products and Chemicals Inc filed Critical Air Products and Chemicals Inc
Publication of DE573892T1 publication Critical patent/DE573892T1/de
Pending legal-status Critical Current

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
    • D21C7/00—Digesters
    • 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
    • D21C9/147—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications
    • 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
    • D21C9/147—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications
    • D21C9/153—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications with ozone
DE0573892T 1992-06-08 1993-06-02 Reaktorsystem zur Behandlung von Zellulosezellstoff. Pending DE573892T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/895,490 US5372679A (en) 1992-06-08 1992-06-08 Reactor system for treating cellulosic pulp at a constant upward flow velocity

Publications (1)

Publication Number Publication Date
DE573892T1 true DE573892T1 (de) 1994-11-17

Family

ID=25404578

Family Applications (2)

Application Number Title Priority Date Filing Date
DE69304801T Expired - Fee Related DE69304801T2 (de) 1992-06-08 1993-06-02 Reaktorsystem zur Behandlung von Zellstoff
DE0573892T Pending DE573892T1 (de) 1992-06-08 1993-06-02 Reaktorsystem zur Behandlung von Zellulosezellstoff.

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE69304801T Expired - Fee Related DE69304801T2 (de) 1992-06-08 1993-06-02 Reaktorsystem zur Behandlung von Zellstoff

Country Status (7)

Country Link
US (2) US5372679A (de)
EP (1) EP0573892B1 (de)
JP (1) JPH06166979A (de)
AT (1) ATE143072T1 (de)
CA (1) CA2097473C (de)
DE (2) DE69304801T2 (de)
ES (1) ES2054607T3 (de)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2082557C (en) * 1992-02-24 1997-03-11 Charles W. Hankins Integrated pulping process of waste paper yielding tissue-grade paper fibers
US5589036A (en) * 1992-05-18 1996-12-31 Champion International Corporation Controlling pulp flow in an upflow pulp treatment tower
FI105701B (fi) 1995-10-20 2000-09-29 Ahlstrom Machinery Oy Menetelmä ja laitteisto massan käsittelemiseksi
DE19615226A1 (de) * 1996-04-18 1997-10-23 Voith Sulzer Papiermasch Gmbh Trockenpartie
AT403588B (de) * 1996-06-26 1998-03-25 Andritz Patentverwaltung Vorrichtung zur verteilung von suspensionen, insbesondere zellstoffsuspensionen, in einem behälter
US6036355A (en) * 1997-07-14 2000-03-14 Quantum Technologies, Inc. Reactor mixing assembly
DE19821311C1 (de) * 1998-05-13 1999-10-07 Voith Sulzer Papiertech Patent Verfahren zur Bleiche von Papierfaserstoff
FI981808A (fi) * 1998-08-24 2000-02-25 Crs Reactor Engineering Uk Ltd Menetelmä massan valkaisemiseksi
US20050173082A1 (en) * 1998-08-24 2005-08-11 Arbozon Oy Ltd. Bleaching of medium consistency pulp with ozone without high shear mixing
FR2836162B1 (fr) * 2002-02-18 2004-05-07 Air Liquide Procede de traitement de papiers uses par l'ozone
FI20030209A (fi) * 2003-02-12 2004-08-13 Sulzer Pumpen Ag Järjestely ja menetelmä massan käsittelemiseksi ja massatornin modernisointimenetelmä
AU2003291874A1 (en) * 2003-06-03 2005-01-21 David Tarasenko Method for producing pulp and lignin
JP5225040B2 (ja) 2008-11-20 2013-07-03 フロイント産業株式会社 シームレスカプセル製造装置
FI20100034A (fi) * 2010-02-02 2011-08-03 Andritz Oy Menetelmä suodoksen varastoimiseksi
AU2011315945B2 (en) * 2010-10-15 2015-09-10 Andritz Technology And Asset Management Gmbh High solids enzyme reactor or mixer and method
FI20146070A (fi) * 2014-12-05 2016-06-06 Andritz Oy Materiaalin poistaminen eräkeittimestä
SE545465C2 (en) * 2019-12-02 2023-09-19 Valmet Oy Method and arrangement for adding treatment liquors to cellulose raw material in a continuous process using down flow vessels
DE102020002445A1 (de) 2020-04-23 2021-10-28 Messer Austria Gmbh Verfahren und Vorrichtung zur Herstellung von gebleichtem Zellstoff

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2198587A (en) * 1940-04-23 Method of and apparatus for pack
US1776761A (en) * 1928-04-02 1930-09-23 Morterud Einar Method for blowing out pulp digesters
US3313678A (en) * 1962-02-14 1967-04-11 Svenska Cellulose Aktiebolaget Bleaching of cellulose pulp in towers in completely filled and closed system
US3397718A (en) * 1965-10-20 1968-08-20 Beloit Corp Valve means
US3467573A (en) * 1965-12-13 1969-09-16 Improved Machinery Inc Upflow digester containing means for separate removal of wash liquor and pulping liquor and method of pulping in said digester
OA03094A (fr) * 1968-07-11 1970-12-15 P P I South African Pulp And P Perfectionnements à la délignification et au blanchiment des pâtes de cellulose avec l'oxygène gazeux.
US3992248A (en) * 1969-05-19 1976-11-16 Stadler Hurter Limited Continuous feeding system for treatment towers
US3723243A (en) * 1971-10-18 1973-03-27 Improved Machinery Inc Continuous digester having selfregulating wood chip level
US4105494A (en) * 1973-01-05 1978-08-08 Sunds Aktiebolag Process of gas-phase bleaching high consistency finely disintegrated pulp
US4161421A (en) * 1977-09-13 1979-07-17 Kamyr, Inc. Method and apparatus for continuous oxygen bleaching of cellulosic pulp
US4886577A (en) * 1985-05-03 1989-12-12 Kamyr, Inc. Method and apparatus for mixing oxygen gas with medium consistency pulp in a pump discharge
CA1300322C (en) * 1987-06-08 1992-05-12 Derek Hornsey Method of bleaching or delignification of cellulose pulp with oxygen
SU1724767A1 (ru) * 1988-09-12 1992-04-07 Центральный Научно-Исследовательский И Проектно-Конструкторский Институт По Проектированию Оборудования Для Целлюлозно-Бумажной Промышленности Башн дл отбелки целлюлозы
US5034095A (en) * 1989-06-01 1991-07-23 Oji Paper Co., Ltd. Apparatus and process for the delignification of cellulose pulp
US5211809A (en) * 1991-05-21 1993-05-18 Air Products And Chemicals, Inc,. Dye removal in oxygen color stripping of secondary fibers

Also Published As

Publication number Publication date
CA2097473A1 (en) 1993-12-09
US5372679A (en) 1994-12-13
EP0573892B1 (de) 1996-09-18
DE69304801D1 (de) 1996-10-24
DE69304801T2 (de) 1997-01-30
JPH06166979A (ja) 1994-06-14
EP0573892A1 (de) 1993-12-15
ATE143072T1 (de) 1996-10-15
CA2097473C (en) 1999-01-26
ES2054607T1 (es) 1994-08-16
ES2054607T3 (es) 1997-01-16
US5397434A (en) 1995-03-14

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