FR2242513A1 - - Google Patents

Info

Publication number
FR2242513A1
FR2242513A1 FR7428111A FR7428111A FR2242513A1 FR 2242513 A1 FR2242513 A1 FR 2242513A1 FR 7428111 A FR7428111 A FR 7428111A FR 7428111 A FR7428111 A FR 7428111A FR 2242513 A1 FR2242513 A1 FR 2242513A1
Authority
FR
France
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.)
Granted
Application number
FR7428111A
Other versions
FR2242513B1 (fr
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.)
Metso Fiber Karlstad AB
Original Assignee
Kamyr AB
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 Kamyr AB filed Critical Kamyr AB
Publication of FR2242513A1 publication Critical patent/FR2242513A1/fr
Application granted granted Critical
Publication of FR2242513B1 publication Critical patent/FR2242513B1/fr
Expired 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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F33/00—Other mixers; Mixing plants; Combinations of mixers
    • B01F33/40—Mixers using gas or liquid agitation, e.g. with air supply tubes
    • B01F33/402—Mixers using gas or liquid agitation, e.g. with air supply tubes comprising supplementary stirring elements
    • 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
    • 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)
FR7428111A 1973-08-27 1974-08-13 Expired FR2242513B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7311580A SE379069B (fr) 1973-08-27 1973-08-27

Publications (2)

Publication Number Publication Date
FR2242513A1 true FR2242513A1 (fr) 1975-03-28
FR2242513B1 FR2242513B1 (fr) 1976-12-31

Family

ID=20318332

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7428111A Expired FR2242513B1 (fr) 1973-08-27 1974-08-13

Country Status (7)

Country Link
US (1) US3963561A (fr)
JP (1) JPS5052302A (fr)
BR (1) BR7407095D0 (fr)
CA (1) CA1038108A (fr)
FI (1) FI61733C (fr)
FR (1) FR2242513B1 (fr)
SE (1) SE379069B (fr)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52121501A (en) * 1976-04-07 1977-10-13 Mitsubishi Heavy Ind Ltd Process and apparatus for removing badly smelling constituents from kraft digesting liquid
SE417114B (sv) * 1977-07-25 1981-02-23 Mo Och Domsjoe Ab Forfarande for forebyggande av inkrustbildning i cellulosafabriker
US4161421A (en) * 1977-09-13 1979-07-17 Kamyr, Inc. Method and apparatus for continuous oxygen bleaching of cellulosic pulp
US4128454A (en) * 1977-12-07 1978-12-05 Ingersoll-Rand Co. System and method for gas phase pulp bleaching
US4209359A (en) * 1978-10-23 1980-06-24 International Paper Company Process for removing residual oxygen from oxygen-bleached pulp
US4220498A (en) * 1978-12-14 1980-09-02 Kamyr, Inc. Oxygen reactor systems pulp reject treatment
US4259150A (en) * 1978-12-18 1981-03-31 Kamyr Inc. Plural stage mixing and thickening oxygen bleaching process
SE462919B (sv) * 1979-05-11 1990-09-17 Sunds Defibrator Ind Ab Saett att genomfoera alkaliextraktion av cellulosamassa i naervaro av syre
US4363697A (en) * 1979-12-03 1982-12-14 The Black Clawson Company Method for medium consistency oxygen delignification of pulp
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
US4581104A (en) * 1983-08-11 1986-04-08 Ingersoll-Rand Company Method of reducing the lignin in wood pulp with oxygen gas recirculation
US4684442A (en) * 1984-03-29 1987-08-04 Weyerhaeuser Company Oxygen reactor deaeration tank and system
AT380496B (de) * 1984-06-27 1986-05-26 Steyrermuehl Papier Verfahren und reaktor zur delignifizierung von zellstoff mit sauerstoff
ATE54056T1 (de) * 1985-04-01 1990-07-15 Weyerhaeuser Co Entlueftungsbehaelter und einrichtung zu dessen verwendung.
US5300195A (en) * 1988-05-31 1994-04-05 Kamyr Ab Continuous vertical digester apparatus
AT395180B (de) * 1989-08-16 1992-10-12 Andritz Ag Maschf Verfahren zur zerkleinerung von materialien und anlage zu dessen durchfuehrung
SE9201477L (sv) * 1992-05-11 1993-06-28 Kamyr Ab Saett vid blekning av massa utan anvaendning av klorkemikalier
SE500113C2 (sv) * 1992-07-09 1994-04-18 Kamyr Ab Sätt vid blekning av massa för omhändertagande av utlösta metaller
US5460696A (en) * 1993-08-12 1995-10-24 The Boc Group, Inc. Oxygen delignification method incorporating wood pulp mixing apparatus
ZA947310B (en) * 1993-09-22 1995-05-10 Ingersoll Rand Co Method of and apparatus for oxygen delignifiation of medium consistency pulp slurry
US5688368A (en) * 1993-12-10 1997-11-18 Beloit Technologies, Inc. Method for cooling and ozone bleaching wood pulp
US6210527B1 (en) 1994-03-14 2001-04-03 The Boc Group, Inc. Pulp bleaching method wherein an ozone bleaching waste stream is scrubbed to form an oxygen containing stream
DE69608910T2 (de) * 1995-12-07 2001-01-18 Beloit Technologies, Inc. Delignifizierung eines papierzellstoffs mittlerer konsistenz mittels sauerstoff
JP2000507317A (ja) * 1996-03-26 2000-06-13 シユンドス・デフイブラトール・インダストリーズ・アクテイエボラーグ 二工程での酸素によるパルプの脱リグニン
US20020129911A1 (en) * 2000-10-16 2002-09-19 Marcoccia Bruno S. Process and configuration for providing external upflow/internal downflow in a continuous digester
CN106351048B (zh) * 2016-10-27 2018-01-19 中科双泰（北京）环保科技有限公司 一种秸秆纤维多功能一体机

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1529919A (en) * 1922-03-06 1925-03-17 Stebbins Engineering And Mfg C Pulp-bleaching method and apparatus
US1541371A (en) * 1925-03-09 1925-06-09 Stebbins Engineering & Mfg Co Method and apparatus for bleaching pulp
US1576018A (en) * 1925-07-28 1926-03-09 Robert B Wolf Controlling bleaching operations
US3703435A (en) * 1967-11-09 1972-11-21 Sunds Ab Method for finely disintegrating pulp,preferentially cellulose pulp,in connection with the bleaching thereof with gaseous bleaching agent
SE355614B (fr) * 1970-05-13 1973-04-30 Mo Och Domsjoe Ab

Also Published As

Publication number Publication date
US3963561A (en) 1976-06-15
FI61733C (fi) 1984-02-28
SE379069B (fr) 1975-09-22
FR2242513B1 (fr) 1976-12-31
FI237774A (fr) 1975-02-28
BR7407095D0 (pt) 1975-06-24
CA1038108A (fr) 1978-09-12
DE2437841B2 (de) 1977-01-20
SE7311580L (fr) 1975-02-28
FI61733B (fi) 1982-05-31
JPS5052302A (fr) 1975-05-09
DE2437841A1 (de) 1975-03-13

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Legal Events

Date Code Title Description
ST Notification of lapse