FR1441787A - Pulp bleaching process - Google Patents

Pulp bleaching process

Info

Publication number
FR1441787A
FR1441787A FR45940A FR69045940A FR1441787A FR 1441787 A FR1441787 A FR 1441787A FR 45940 A FR45940 A FR 45940A FR 69045940 A FR69045940 A FR 69045940A FR 1441787 A FR1441787 A FR 1441787A
Authority
FR
France
Prior art keywords
bleaching process
pulp bleaching
pulp
bleaching
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.)
Expired
Application number
FR45940A
Other languages
French (fr)
Inventor
B Ancelle
M Plancon
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.)
Progil SARL
Original Assignee
Progil SARL
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 Progil SARL filed Critical Progil SARL
Priority to FR45940A priority Critical patent/FR1441787A/en
Priority to SE4929/66A priority patent/SE302243B/xx
Priority to NO162617A priority patent/NO124789B/no
Priority to US545919A priority patent/US3451888A/en
Application granted granted Critical
Publication of FR1441787A publication Critical patent/FR1441787A/en
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
    • D21C9/1073—Bleaching ; Apparatus therefor with O3

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Selective Calling Equipment (AREA)
FR45940A 1965-04-30 1965-04-30 Pulp bleaching process Expired FR1441787A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
FR45940A FR1441787A (en) 1965-04-30 1965-04-30 Pulp bleaching process
SE4929/66A SE302243B (en) 1965-04-30 1966-04-12
NO162617A NO124789B (en) 1965-04-30 1966-04-19
US545919A US3451888A (en) 1965-04-30 1966-04-28 Bleaching pulp having high consistency with ozone having moisture content near 100%

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR45940A FR1441787A (en) 1965-04-30 1965-04-30 Pulp bleaching process

Publications (1)

Publication Number Publication Date
FR1441787A true FR1441787A (en) 1966-06-10

Family

ID=8598718

Family Applications (1)

Application Number Title Priority Date Filing Date
FR45940A Expired FR1441787A (en) 1965-04-30 1965-04-30 Pulp bleaching process

Country Status (4)

Country Link
US (1) US3451888A (en)
FR (1) FR1441787A (en)
NO (1) NO124789B (en)
SE (1) SE302243B (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4216054A (en) 1977-09-26 1980-08-05 Weyerhaeuser Company Low-consistency ozone delignification
EP0308314A1 (en) * 1987-09-17 1989-03-22 "DEGREMONT" Société dite: Process for the ozone treatment of lignocellulosic materials, in particular paper pulps, and reactor for carrying out this process
EP0434662A1 (en) * 1989-12-22 1991-06-26 SCHMIDDING-WERKE Wilhelm Schmidding GmbH & Co. Process for bleaching cellulosic materials and plant for carrying out the process
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
US5181989A (en) * 1990-10-26 1993-01-26 Union Camp Patent Holdings, Inc. Reactor for bleaching high consistency pulp with ozone
US5451296A (en) * 1991-05-24 1995-09-19 Union Camp Patent Holding, Inc. Two stage pulp bleaching reactor
US5472572A (en) * 1990-10-26 1995-12-05 Union Camp Patent Holding, Inc. Reactor for 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

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA902861A (en) * 1969-11-27 1972-06-20 Pulp And Paper Research Institute Of Canada Bleaching of cellulosic pulp
US4196043A (en) * 1970-12-21 1980-04-01 Scott Paper Company Kraft pulp bleaching and recovery process
US4119486A (en) * 1975-08-14 1978-10-10 Westvaco Corporation Process for bleaching wood pulp with ozone in the presence of a cationic surfactant
JPS5324401A (en) * 1976-08-12 1978-03-07 Seisan Kaihatsu Kagaku Kenkyus Process for multistage pulp bleaching
US4410397A (en) * 1978-04-07 1983-10-18 International Paper Company Delignification and bleaching process and solution for lignocellulosic pulp with peroxide in the presence of metal additives
US4283251A (en) * 1980-01-24 1981-08-11 Scott Paper Company Ozone effluent bleaching
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
US5188708A (en) * 1989-02-15 1993-02-23 Union Camp Patent Holding, Inc. Process for high consistency oxygen delignification followed by ozone relignification
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
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
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
US20030131958A1 (en) * 2001-11-30 2003-07-17 Thomas Jaschinski Use of ozone for increasing the wet strength of paper and nonwoven

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2466633A (en) * 1948-05-26 1949-04-05 James M Daily Method of bleaching cellulosic pulp

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4216054A (en) 1977-09-26 1980-08-05 Weyerhaeuser Company Low-consistency ozone delignification
EP0308314A1 (en) * 1987-09-17 1989-03-22 "DEGREMONT" Société dite: Process for the ozone treatment of lignocellulosic materials, in particular paper pulps, and reactor for carrying out this process
FR2620744A1 (en) * 1987-09-17 1989-03-24 Degremont PROCESS FOR THE OZONE TREATMENT OF LIGNO-CELLULOSIC MATERIALS, IN PARTICULAR PAPER PULP AND REACTOR FOR THE IMPLEMENTATION OF SAID METHOD
EP0434662A1 (en) * 1989-12-22 1991-06-26 SCHMIDDING-WERKE Wilhelm Schmidding GmbH & Co. Process for bleaching cellulosic materials and plant for carrying out the process
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
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
US5520783A (en) * 1990-10-26 1996-05-28 Union Camp Patent Holding, Inc. Apparatus for bleaching high consistency pulp with ozone
US5863389A (en) * 1990-10-26 1999-01-26 Union Camp Patent Holding, Inc. Pulp bleaching reactor for dispersing high consistency pulp into a gaseous bleaching agent containing ozone
US5451296A (en) * 1991-05-24 1995-09-19 Union Camp Patent Holding, Inc. Two stage pulp bleaching reactor

Also Published As

Publication number Publication date
NO124789B (en) 1972-06-05
US3451888A (en) 1969-06-24
SE302243B (en) 1968-07-08

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