AU539165B2 - Ozone effluent bleaching of pulp - Google Patents

Ozone effluent bleaching of pulp

Info

Publication number
AU539165B2
AU539165B2 AU70975/81A AU7097581A AU539165B2 AU 539165 B2 AU539165 B2 AU 539165B2 AU 70975/81 A AU70975/81 A AU 70975/81A AU 7097581 A AU7097581 A AU 7097581A AU 539165 B2 AU539165 B2 AU 539165B2
Authority
AU
Australia
Prior art keywords
bleaching
pulp
effluent
ozone
ozone effluent
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
AU70975/81A
Other versions
AU7097581A (en
Inventor
Rudra P. Singh
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.)
Kimberly Clark Worldwide Inc
Original Assignee
Scott 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
Priority claimed from US06/115,065 external-priority patent/US4283251A/en
Priority to FR8101263A priority Critical patent/FR2474550A1/en
Application filed by Scott Paper Co filed Critical Scott Paper Co
Priority to AU70975/81A priority patent/AU539165B2/en
Publication of AU7097581A publication Critical patent/AU7097581A/en
Application granted granted Critical
Publication of AU539165B2 publication Critical patent/AU539165B2/en
Assigned to KIMBERLY-CLARK WORLDWIDE, INC. reassignment KIMBERLY-CLARK WORLDWIDE, INC. Alteration of Name(s) in Register under S187 Assignors: SCOTT PAPER COMPANY
Anticipated expiration legal-status Critical
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
    • 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
    • D21C9/147—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications
    • D21C9/153—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications with ozone

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
AU70975/81A 1980-01-24 1981-05-25 Ozone effluent bleaching of pulp Expired AU539165B2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR8101263A FR2474550A1 (en) 1980-01-24 1981-01-23 Two stage pulp bleaching process - by ozone bleaching of acidified pulp at high consistency, diluting to lower consistency, and making alkaline for peroxy bleaching
AU70975/81A AU539165B2 (en) 1980-01-24 1981-05-25 Ozone effluent bleaching of pulp

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US06/115,065 US4283251A (en) 1980-01-24 1980-01-24 Ozone effluent bleaching
AU70975/81A AU539165B2 (en) 1980-01-24 1981-05-25 Ozone effluent bleaching of pulp

Publications (2)

Publication Number Publication Date
AU7097581A AU7097581A (en) 1982-12-02
AU539165B2 true AU539165B2 (en) 1984-09-13

Family

ID=32962952

Family Applications (1)

Application Number Title Priority Date Filing Date
AU70975/81A Expired AU539165B2 (en) 1980-01-24 1981-05-25 Ozone effluent bleaching of pulp

Country Status (2)

Country Link
AU (1) AU539165B2 (en)
FR (1) FR2474550A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU654854B2 (en) * 1991-05-24 1994-11-24 Union Camp Patent Holding, Inc. Two stage pulp bleaching reactor

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3814664A (en) * 1972-09-11 1974-06-04 Improved Machinery Inc Gaseous reaction apparatus including a peripheral gas receiving chamber

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU654854B2 (en) * 1991-05-24 1994-11-24 Union Camp Patent Holding, Inc. Two stage pulp bleaching reactor

Also Published As

Publication number Publication date
FR2474550B1 (en) 1983-05-27
AU7097581A (en) 1982-12-02
FR2474550A1 (en) 1981-07-31

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Legal Events

Date Code Title Description
MK14 Patent ceased section 143(a) (annual fees not paid) or expired