NO144930C - PROCEDURE FOR CONTINUOUS WHEATING AND DELIGNIFICATION OF CELLULOSMASS WHEN USING THE OXYGEN - Google Patents

PROCEDURE FOR CONTINUOUS WHEATING AND DELIGNIFICATION OF CELLULOSMASS WHEN USING THE OXYGEN

Info

Publication number
NO144930C
NO144930C NO740795A NO740795A NO144930C NO 144930 C NO144930 C NO 144930C NO 740795 A NO740795 A NO 740795A NO 740795 A NO740795 A NO 740795A NO 144930 C NO144930 C NO 144930C
Authority
NO
Norway
Prior art keywords
wheating
cellulosmass
delignification
oxygen
procedure
Prior art date
Application number
NO740795A
Other languages
Norwegian (no)
Other versions
NO740795L (en
NO144930B (en
Inventor
Sunanda K Roymoulik
Kenton J Brown
Original Assignee
Int Paper Co
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 Int Paper Co filed Critical Int Paper Co
Publication of NO740795L publication Critical patent/NO740795L/en
Publication of NO144930B publication Critical patent/NO144930B/en
Publication of NO144930C publication Critical patent/NO144930C/en

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
    • D21C9/1068—Bleaching ; Apparatus therefor with O2

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Cereal-Derived Products (AREA)
  • Coloring Foods And Improving Nutritive Qualities (AREA)
NO740795A 1973-03-07 1974-03-06 PROCEDURE FOR CONTINUOUS WHEATING AND DELIGNIFICATION OF CELLULOSMASS WHEN USING THE OXYGEN NO144930C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00338862A US3832276A (en) 1973-03-07 1973-03-07 Delignification and bleaching of a cellulose pulp slurry with oxygen

Publications (3)

Publication Number Publication Date
NO740795L NO740795L (en) 1974-09-10
NO144930B NO144930B (en) 1981-08-31
NO144930C true NO144930C (en) 1981-12-09

Family

ID=23326465

Family Applications (1)

Application Number Title Priority Date Filing Date
NO740795A NO144930C (en) 1973-03-07 1974-03-06 PROCEDURE FOR CONTINUOUS WHEATING AND DELIGNIFICATION OF CELLULOSMASS WHEN USING THE OXYGEN

Country Status (14)

Country Link
US (1) US3832276A (en)
JP (1) JPS5747798B2 (en)
AR (1) AR202919A1 (en)
BR (1) BR7401573D0 (en)
CA (1) CA1007807A (en)
DE (1) DE2410934C2 (en)
FI (1) FI59434C (en)
FR (1) FR2220620B1 (en)
GB (1) GB1445276A (en)
IT (1) IT1011546B (en)
NO (1) NO144930C (en)
PH (1) PH10177A (en)
SE (1) SE397983B (en)
ZA (1) ZA741287B (en)

Families Citing this family (49)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI48764C (en) * 1973-05-30 1977-07-26 Ahlstroem Oy Method and apparatus for bleaching cellulose pulp with molecular weight.
US4089737A (en) * 1974-02-18 1978-05-16 Toyo Pulp Company, Ltd. Delignification of cellulosic material with an alkaline aqueous medium containing oxygen dissolved therein
SE394466C (en) * 1974-05-16 1986-06-23 Mannbro Systems Handelsbolag SEE CONTINUOUS ALKALIC DELIGNIFICATION OF LIGNOCELLULOSAMENTAL MATERIAL IN TWO OR MULTIPLE STEPS, WHICH ARE LAST WITH Oxygen
US3951733A (en) * 1974-11-06 1976-04-20 International Paper Company Delignification and bleaching of wood pulp with oxygen
US4002526A (en) * 1975-10-10 1977-01-11 International Paper Company Oxygen-alkali delignification of low consistency wood pulp
FI773597A (en) * 1976-12-01 1978-06-02 New Zealand Dev Finance FOERFARANDE FOER BEHANDLING AV LIGNOCELLULOSA-ELLER CELLULOSAFIBERMASSA SAO ATT BEHANDLINGEN FRAEMJAR KROEKNING AV MASSANS FIBERS OCH FOERBAETTRAR PAPPRETS RIVHAOLLFASTHET
US4216054A (en) * 1977-09-26 1980-08-05 Weyerhaeuser Company Low-consistency ozone delignification
US4198266A (en) * 1977-10-12 1980-04-15 Airco, Inc. Oxygen delignification of wood pulp
US4209359A (en) * 1978-10-23 1980-06-24 International Paper Company Process for removing residual oxygen from oxygen-bleached pulp
US4259150A (en) * 1978-12-18 1981-03-31 Kamyr Inc. Plural stage mixing and thickening oxygen bleaching process
SE462919B (en) * 1979-05-11 1990-09-17 Sunds Defibrator Ind Ab PROCEDURE TO PERFORM ALKALIE EXTRACTION OF CELLULOSAMASS IN THE PRESENCE OF ACID
US4295927A (en) * 1979-06-15 1981-10-20 Weyerhaeuser Company Method and apparatus for treating pulp with oxygen and storing the treated pulp
US4295925A (en) * 1979-06-15 1981-10-20 Weyerhaeuser Company Treating pulp with oxygen
US4295926A (en) * 1979-06-15 1981-10-20 Weyerhaeuser Company Method and apparatus for treating pulp with oxygen
US4294654A (en) * 1980-03-21 1981-10-13 International Paper Company Delignification and bleaching of lignocellulosic pulp via photo-oxygenation
SE421019B (en) * 1980-08-26 1981-11-16 Kamyr Ab PROCEDURE FOR CHEMICAL REGULATION IN THE TREATMENT OF A SUBSTANCE, SPECIAL MASS, WITH GAS
US4384920A (en) * 1981-04-06 1983-05-24 The Black Clawson Company Method and apparatus for oxygen delignification
FI67241B (en) * 1981-06-10 1984-10-31 Aga Ab SAETT FOER BLEKNING AV CELLULOSAHALTIGA MATERIAL
BR8109040A (en) * 1981-09-04 1983-09-06 Weyerhaeuser Co PULP TREATMENT WITH OXYGEN
BR8109039A (en) * 1981-09-04 1983-09-06 Weyerhaeuser Co PULP TREATMENT WITH OXYGEN
DE3207157C1 (en) * 1982-02-27 1983-06-09 Degussa Ag, 6000 Frankfurt Process for the production of semi-bleached cellulose
US4684442A (en) * 1984-03-29 1987-08-04 Weyerhaeuser Company Oxygen reactor deaeration tank and system
FR2566015B1 (en) * 1984-06-15 1986-08-29 Centre Tech Ind Papier PROCESS FOR BLEACHING MECHANICAL PASTE WITH HYDROGEN PEROXIDE
FI71178C (en) * 1984-11-08 1988-05-18 Rauma Repola Oy Procedure for controlling oxygen bleaching process
US4568420B1 (en) * 1984-12-03 1999-03-02 Int Paper Co Multi-stage bleaching process including an enhanced oxidative extraction stage
ATE54056T1 (en) * 1985-04-01 1990-07-15 Weyerhaeuser Co VENTILATION TANK AND DEVICE FOR USE THEREOF.
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
US4978426A (en) * 1987-02-24 1990-12-18 Westvaco Corporation Production of high strength linerboard with oxygen and alkali
US5188708A (en) * 1989-02-15 1993-02-23 Union Camp Patent Holding, Inc. Process for high consistency oxygen delignification followed by ozone relignification
US5525195A (en) * 1989-02-15 1996-06-11 Union Camp Patent Holding, Inc. Process for high consistency delignification using a low consistency alkali pretreatment
US5217574A (en) * 1989-02-15 1993-06-08 Union Camp Patent Holdings Inc. Process for oxygen delignifying high consistency pulp by removing and recycling pressate from alkaline pulp
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
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
US5181989A (en) * 1990-10-26 1993-01-26 Union Camp Patent Holdings, Inc. Reactor for bleaching high consistency pulp with ozone
US5472572A (en) * 1990-10-26 1995-12-05 Union Camp Patent Holding, Inc. Reactor for bleaching high consistency pulp with ozone
US5085734A (en) * 1989-02-15 1992-02-04 Union Camp Patent Holding, Inc. Methods of high consistency oxygen delignification using a low consistency alkali pretreatment
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
FI89516B (en) * 1989-05-10 1993-06-30 Ahlstroem Oy Foerfarande Foer blekning av cellulosamassa med Otson
WO1991000386A1 (en) * 1989-06-30 1991-01-10 Nekoosa Papers, Inc. A method for bleaching kraft pulp with a mixture of oxygen and peroxide
US5164044A (en) * 1990-05-17 1992-11-17 Union Camp Patent Holding, Inc. Environmentally improved process for bleaching lignocellulosic materials with ozone
US5164043A (en) * 1990-05-17 1992-11-17 Union Camp Patent Holding, Inc. Environmentally improved process for bleaching lignocellulosic materials with ozone
US5520783A (en) * 1990-10-26 1996-05-28 Union Camp Patent Holding, Inc. Apparatus for bleaching high consistency pulp with ozone
US5174861A (en) * 1990-10-26 1992-12-29 Union Camp Patent Holdings, Inc. Method of bleaching high consistency pulp with ozone
DE69221385T2 (en) * 1991-05-24 1997-12-11 Union Camp Patent Holding, Inc., Wilmington, Del. Two-stage pulp bleaching reactor and method for bleaching with ozone
CA2082557C (en) * 1992-02-24 1997-03-11 Charles W. Hankins Integrated pulping process of waste paper yielding tissue-grade paper fibers
US5387317A (en) * 1993-01-28 1995-02-07 The Mead Corporation Oxygen/ozone/peracetic aicd delignification and bleaching of cellulosic pulps
US6340409B1 (en) * 1993-04-29 2002-01-22 Lewis Donald Shackford Method for multistage bleaching using gaseous reagent in the first stage with controlled gas release
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
US7812153B2 (en) * 2004-03-11 2010-10-12 Rayonier Products And Financial Services Company Process for manufacturing high purity xylose

Also Published As

Publication number Publication date
NO740795L (en) 1974-09-10
JPS5024503A (en) 1975-03-15
GB1445276A (en) 1976-08-11
AR202919A1 (en) 1975-07-31
CA1007807A (en) 1977-04-05
NO144930B (en) 1981-08-31
BR7401573D0 (en) 1974-11-05
FR2220620B1 (en) 1978-04-21
FR2220620A1 (en) 1974-10-04
JPS5747798B2 (en) 1982-10-12
DE2410934C2 (en) 1983-12-01
SE397983B (en) 1977-11-28
AU6602374A (en) 1975-08-28
FI59434B (en) 1981-04-30
IT1011546B (en) 1977-02-10
FI59434C (en) 1983-07-04
US3832276A (en) 1974-08-27
PH10177A (en) 1976-09-16
ZA741287B (en) 1975-02-26
DE2410934A1 (en) 1974-09-19

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