AR202919A1 - CONTINUOUS METHOD OF WHITENING AND DELIGNIFYING CELLULOSE PASTE - Google Patents

CONTINUOUS METHOD OF WHITENING AND DELIGNIFYING CELLULOSE PASTE

Info

Publication number
AR202919A1
AR202919A1 AR20291975D AR20291975D AR202919A1 AR 202919 A1 AR202919 A1 AR 202919A1 AR 20291975 D AR20291975 D AR 20291975D AR 20291975 D AR20291975 D AR 20291975D AR 202919 A1 AR202919 A1 AR 202919A1
Authority
AR
Argentina
Prior art keywords
whitening
continuous method
cellulose paste
delignifying cellulose
delignifying
Prior art date
Application number
AR20291975D
Other languages
Spanish (es)
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
Application granted granted Critical
Publication of AR202919A1 publication Critical patent/AR202919A1/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)
AR20291975D 1973-03-07 1975-01-01 CONTINUOUS METHOD OF WHITENING AND DELIGNIFYING CELLULOSE PASTE AR202919A1 (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 (1)

Publication Number Publication Date
AR202919A1 true AR202919A1 (en) 1975-07-31

Family

ID=23326465

Family Applications (1)

Application Number Title Priority Date Filing Date
AR20291975D AR202919A1 (en) 1973-03-07 1975-01-01 CONTINUOUS METHOD OF WHITENING AND DELIGNIFYING CELLULOSE PASTE

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
AU3102077A (en) * 1976-12-01 1979-06-07 New Zealand Dev Finance Treating lignocellulosic or cellulosic pulp
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
EP0088073A4 (en) * 1981-09-04 1984-01-09 Weyerhaeuser Co Method of treating pulp with plural oxygen stages.
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
WO1986005708A1 (en) * 1985-04-01 1986-10-09 Weyerhaeuser Company A deaeration tank and process for using the tank
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
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
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
US5525195A (en) * 1989-02-15 1996-06-11 Union Camp Patent Holding, Inc. Process for high consistency 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
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
US5472572A (en) * 1990-10-26 1995-12-05 Union Camp Patent Holding, Inc. Reactor for bleaching high consistency pulp with ozone
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
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
US5164043A (en) * 1990-05-17 1992-11-17 Union Camp Patent Holding, Inc. Environmentally improved process for bleaching lignocellulosic materials with ozone
US5164044A (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
NZ242792A (en) * 1991-05-24 1993-12-23 Union Camp Patent Holding Two-stage pulp bleaching reactor: pulp mixed with ozone in first stage.
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
CA1007807A (en) 1977-04-05
SE397983B (en) 1977-11-28
NO144930B (en) 1981-08-31
IT1011546B (en) 1977-02-10
NO740795L (en) 1974-09-10
AU6602374A (en) 1975-08-28
JPS5747798B2 (en) 1982-10-12
PH10177A (en) 1976-09-16
JPS5024503A (en) 1975-03-15
FR2220620A1 (en) 1974-10-04
DE2410934A1 (en) 1974-09-19
GB1445276A (en) 1976-08-11
FI59434B (en) 1981-04-30
FI59434C (en) 1983-07-04
BR7401573D0 (en) 1974-11-05
NO144930C (en) 1981-12-09
DE2410934C2 (en) 1983-12-01
ZA741287B (en) 1975-02-26
FR2220620B1 (en) 1978-04-21
US3832276A (en) 1974-08-27

Similar Documents

Publication Publication Date Title
AR202919A1 (en) CONTINUOUS METHOD OF WHITENING AND DELIGNIFYING CELLULOSE PASTE
IT1052508B (en) SOFT CELLULOSE PASTE AND METHOD FOR ITS PRODUCTION
IT1000024B (en) PROCESS OF DELIGNIFICATION AND WHITENING TREATMENT OF MECHANICAL CELLULOSE PASTE
IT1030235B (en) PROCESS OF WHITENING OF CELLULOSE PASTES
IT1006791B (en) METHOD OF PRODUCING CONTINUOUS FILAMENT
ZA741486B (en) Oxidation of cellulose
IT1018824B (en) CONTINUOUS PROCEDURE FOR THE PREPARATION OF LACTICS AND PRODUCT OBTAINED
IT1049314B (en) FLAVORING PROCEDURE AND PRODUCTS
IT1008184B (en) IMPROVEMENT AND PROCESS OF COAGULATION OF SYNTHETIC LACTICS
BE806476A (en) CONTINUOUS COOLING AND PICKLING OF MACHINE WIRE
NO741805L (en) Method for continuous shrinkage of fibrous fabric.
BE823480A (en) DELIGNIFICATION AND BLEACHING PROCESS OF LIGNOCELLULIC PASTA
BR7508248A (en) PERFECT WATERED TOOTHPASTE
IT1005617B (en) PROCEDURE FOR THE CONTINUOUS PRODUCTION OF PASTA FOR CAKES AND MORE
IT1019060B (en) VAT DYES AND PROCEDURE FOR THEIR PRODUCTION AND APPLICATION
IL45220A0 (en) Under garment and method of manufacture
JPS5299258A (en) Dried product of boiled fish paste and method of producing same
BE822807A (en) DERIVATIVES OF SYSOZYME
IT1052132B (en) TIAFURANI AND FURANTIOLI AND PROCEDURE FOR THEIR PRODUCTION AND APPLICATION
GB1449910A (en) Treatment of web material
BE811528A (en) DERIVATIVES OF 1
IT1079673B (en) ANTI-MICROBIAL PASTE AND PROCEDURE FOR ITS PRODUCTION AND APPLICATION
SU502710A1 (en) Method of making sintered products
SU460114A1 (en) Method of making sintered products
SU455759A1 (en) Method of making composite rolls