SE7501737L - - Google Patents

Info

Publication number
SE7501737L
SE7501737L SE7501737A SE7501737A SE7501737L SE 7501737 L SE7501737 L SE 7501737L SE 7501737 A SE7501737 A SE 7501737A SE 7501737 A SE7501737 A SE 7501737A SE 7501737 L SE7501737 L SE 7501737L
Authority
SE
Sweden
Prior art keywords
vessel
gas
discharged
delignification
lignin
Prior art date
Application number
SE7501737A
Other languages
Unknown language ( )
English (en)
Other versions
SE426855C (sv
SE426855B (sv
Inventor
L A Carlsmith
Original Assignee
Improved Machinery 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 Improved Machinery Inc filed Critical Improved Machinery Inc
Publication of SE7501737L publication Critical patent/SE7501737L/
Publication of SE426855B publication Critical patent/SE426855B/xx
Publication of SE426855C publication Critical patent/SE426855C/xx

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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/18—Stationary reactors having moving elements inside
    • B01J19/1868—Stationary reactors having moving elements inside resulting in a loop-type movement
    • B01J19/1881—Stationary reactors having moving elements inside resulting in a loop-type movement externally, i.e. the mixture leaving the vessel and subsequently re-entering it

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
  • Chemical Treatment Of Fibers During Manufacturing Processes (AREA)
SE7501737A 1974-02-25 1975-02-17 Apparat for gasreaktion SE426855C (sv)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/445,212 US3964962A (en) 1974-02-25 1974-02-25 Gaseous reaction apparatus and processes including a peripheral gas receiving chamber and a gas recirculation conduit

Publications (3)

Publication Number Publication Date
SE7501737L true SE7501737L (fi) 1975-08-26
SE426855B SE426855B (sv) 1983-02-14
SE426855C SE426855C (sv) 1984-10-29

Family

ID=23768019

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7501737A SE426855C (sv) 1974-02-25 1975-02-17 Apparat for gasreaktion

Country Status (8)

Country Link
US (1) US3964962A (fi)
JP (1) JPS5833012B2 (fi)
BR (1) BR7500335A (fi)
CA (1) CA1037228A (fi)
DE (1) DE2507414A1 (fi)
FI (1) FI64821C (fi)
NO (1) NO141921B (fi)
SE (1) SE426855C (fi)

Families Citing this family (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE391544C (sv) * 1974-12-10 1985-10-28 Billeruds Ab Sett for forcerad hartsmognad hos vedflis
NO137651C (no) * 1975-10-31 1978-03-29 Myrens Verksted As Fremgangsmaate og apparat til kontinuerlig behandling av findelt fibermateriale eller celluloseholdig masse med gass uten overtrykk.
FI67413C (fi) * 1977-04-27 1985-03-11 Myrens Verksted As Foerfarande foer behandling av finfoerdelad fiberhaltig eller cellulosahaltig massa samt anordning foer utfoerande av foerfarandet
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
US4384920A (en) * 1981-04-06 1983-05-24 The Black Clawson Company Method and apparatus for oxygen delignification
US4581104A (en) * 1983-08-11 1986-04-08 Ingersoll-Rand Company Method of reducing the lignin in wood pulp with oxygen gas recirculation
CA1219733A (en) * 1983-08-11 1987-03-31 Ingersoll-Rand Company Gaseous reaction apparatus and process
JP2510636Y2 (ja) * 1986-05-15 1996-09-18 オリンパス光学工業株式会社 手術用顕微鏡
FI79361B (fi) * 1988-01-05 1989-08-31 Ahlstroem Oy Foerfarande och apparatur foer underlaettande av uttoemning av fallroer eller liknande och behandling av massa i sagda utrymme.
SE462567B (sv) * 1988-11-25 1990-07-16 Sunds Defibrator Ind Ab Anordning foer kontinuerlig behandling av cellulosamassa med en aktiveringskemikalie
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
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
US5472572A (en) * 1990-10-26 1995-12-05 Union Camp Patent Holding, Inc. Reactor for bleaching high consistency pulp with ozone
US5188708A (en) * 1989-02-15 1993-02-23 Union Camp Patent Holding, Inc. Process for high consistency oxygen delignification followed by ozone relignification
US5181989A (en) * 1990-10-26 1993-01-26 Union Camp Patent Holdings, Inc. Reactor for bleaching high consistency pulp with ozone
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
US5174861A (en) * 1990-10-26 1992-12-29 Union Camp Patent Holdings, Inc. Method of bleaching high consistency pulp with ozone
US5520783A (en) * 1990-10-26 1996-05-28 Union Camp Patent Holding, Inc. Apparatus for bleaching high consistency pulp with ozone
FI922279A (fi) * 1991-05-24 1992-11-25 Union Camp Patent Holding Tvaostegsreaktor foer blekning av massa
EP0674731A4 (en) * 1992-12-18 1997-06-18 Ingersoll Rand Co METHOD AND APPARATUS FOR REGULATING WOOD PULP BLEACHING.
US5810973A (en) * 1993-09-21 1998-09-22 Beloit Technologies, Inc. Apparatus for producing small particles from high consistency wood pulp
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
FI98836C (fi) * 1994-06-09 1997-08-25 Ahlstroem Pumput Oy Korkeasakeusmassatorni
US6007680A (en) * 1994-12-08 1999-12-28 Kvaerner Pulping Ab Apparatus for safely conducting pressurized peroxide bleaching
US5954066A (en) * 1995-01-25 1999-09-21 Kvaerner Pulping Ab Method for controlling chemical reaction
US5944952A (en) * 1995-07-26 1999-08-31 Beloit Technologies, Inc. Method for bleaching high consistency pulp with a gaseous bleaching reagent
FI100011B (fi) * 1996-04-18 1997-08-15 Sulzer Pumpen Ag Menetelmä ja laitteisto massatornin täyttämiseksi
US6077396A (en) * 1997-05-16 2000-06-20 Lariviere; Christopher J. Apparatus for fluffing and contacting high consistancy wood pulp with a gaseous bleaching reagent
SE514825C2 (sv) * 1999-09-16 2001-04-30 Aga Ab Oxygendelignifiering av cellulosamassa med oxiderad vitlut som alkalikälla
FI20065557A0 (fi) * 2006-09-07 2006-09-07 Sulzer Pumpen Ag Menetelmä ja laitteisto massatornin täyttämiseksi ja puhtaana pitämiseksi

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2733992A (en) * 1956-02-07 reyerson
US1633735A (en) * 1925-07-15 1927-06-28 Jr Frederick Knapp Fish Process and apparatus for making pulp from fibrous material
US1669234A (en) * 1927-04-22 1928-05-08 Chemipulp Process Inc Process and apparatus for treating fibrous materials for pulping purposes
GB684222A (en) * 1950-07-08 1952-12-10 Kamyr Ab Cellulose digester
US2717195A (en) * 1954-08-02 1955-09-06 Jackson And Church Company Method for treating a fibrous material
BE681488A (fi) * 1965-10-25 1966-10-31
US3607618A (en) * 1967-11-06 1971-09-21 Process Dev Corp Wood-pulping process
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
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.
US3654070A (en) * 1970-04-02 1972-04-04 Sterling Drug Inc Oxidation and reuse of effluent from oxygen pulping of raw cellulose
US3693080A (en) * 1970-12-21 1972-09-19 Sperry Rand Corp Time domain measurement of high frequency complex permittivity and permeability of transmission line enclosed material sample
US3814664A (en) * 1972-09-11 1974-06-04 Improved Machinery Inc Gaseous reaction apparatus including a peripheral gas receiving chamber

Also Published As

Publication number Publication date
US3964962A (en) 1976-06-22
FI64821B (fi) 1983-09-30
CA1037228A (en) 1978-08-29
SE426855C (sv) 1984-10-29
DE2507414C2 (fi) 1989-04-27
BR7500335A (pt) 1975-12-02
JPS5833012B2 (ja) 1983-07-16
SE426855B (sv) 1983-02-14
NO141921B (no) 1980-02-25
DE2507414A1 (de) 1975-08-28
NO750349L (fi) 1975-08-26
JPS50119771A (fi) 1975-09-19
FI64821C (fi) 1984-01-10
FI750370A (fi) 1975-08-26

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