CA982759A - Process for the production of chemical pulps - Google Patents

Process for the production of chemical pulps

Info

Publication number
CA982759A
CA982759A CA164,135A CA164135A CA982759A CA 982759 A CA982759 A CA 982759A CA 164135 A CA164135 A CA 164135A CA 982759 A CA982759 A CA 982759A
Authority
CA
Canada
Prior art keywords
production
chemical pulps
pulps
chemical
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
CA164,135A
Other languages
English (en)
Inventor
Hiroshi Matsuura
Kyoichi Oku
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.)
Japan Pulp and Paper Research Institute Inc
Original Assignee
Japan Pulp and Paper Research Institute 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 Japan Pulp and Paper Research Institute Inc filed Critical Japan Pulp and Paper Research Institute Inc
Application granted granted Critical
Publication of CA982759A publication Critical patent/CA982759A/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
    • D21C11/00—Regeneration of pulp liquors or effluent waste waters
    • D21C11/04—Regeneration of pulp liquors or effluent waste waters of alkali lye
    • 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
    • D21C1/00—Pretreatment of the finely-divided materials before digesting
    • 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
    • D21C3/00—Pulping cellulose-containing materials
    • D21C3/02—Pulping cellulose-containing materials with inorganic bases or alkaline reacting compounds, e.g. sulfate processes
    • D21C3/026—Pulping cellulose-containing materials with inorganic bases or alkaline reacting compounds, e.g. sulfate processes in presence of O2, e.g. air
    • 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
    • D21C3/00—Pulping cellulose-containing materials
    • D21C3/18—Pulping cellulose-containing materials with halogens or halogen-generating compounds

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Paper (AREA)
CA164,135A 1972-02-22 1973-02-15 Process for the production of chemical pulps Expired CA982759A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1834372A JPS4887101A (sv) 1972-02-22 1972-02-22

Publications (1)

Publication Number Publication Date
CA982759A true CA982759A (en) 1976-02-03

Family

ID=11968996

Family Applications (1)

Application Number Title Priority Date Filing Date
CA164,135A Expired CA982759A (en) 1972-02-22 1973-02-15 Process for the production of chemical pulps

Country Status (4)

Country Link
JP (1) JPS4887101A (sv)
BR (2) BR7301296D0 (sv)
CA (1) CA982759A (sv)
FR (1) FR2173174B1 (sv)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4248662A (en) 1979-01-22 1981-02-03 The Black Clawson Company Oxygen pulping with recycled liquor

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4893701A (sv) * 1972-03-23 1973-12-04
FR2184608B1 (sv) * 1972-05-15 1975-04-04 Owens Illinois Inc
CA1056558A (en) * 1974-06-11 1979-06-19 Canadian Industries Limited Strenghtening of mechanical pulp by chemical treatment
JPS51116202A (en) * 1975-04-02 1976-10-13 Sanyo Kokusaku Pulp Co Process for making pulp with high yield
JPS51116206A (en) * 1975-04-03 1976-10-13 Sanyo Kokusaku Pulp Co Bleaching process of pulp with high yield
FI762341A (sv) * 1975-08-20 1977-02-21 Suzano Papel & Celulose
JPS5438901A (en) * 1977-08-30 1979-03-24 Osaka Seiken Yuugen Production of pulp by algae
JPS551319A (en) * 1978-06-12 1980-01-08 Osaka Seiken Yuugen Production of pulp by algae
JPS5562288A (en) * 1978-10-25 1980-05-10 Kogyo Gijutsuin Pulping of fiber material other than wood
JPS5649093A (en) * 1979-09-27 1981-05-02 Kogyo Gijutsuin Production of high yield pulp

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA553349A (en) * 1950-10-04 1958-02-18 C. Harris George Pulping process
US2904460A (en) * 1953-07-22 1959-09-15 Control Acting For The Univers Continuous pulping process
CA895756A (en) * 1970-04-03 1972-03-21 Macmillan Bloedel Limited Two-stage soda-oxygen pulping

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4248662A (en) 1979-01-22 1981-02-03 The Black Clawson Company Oxygen pulping with recycled liquor

Also Published As

Publication number Publication date
FR2173174A1 (sv) 1973-10-05
BR7301295D0 (pt) 1974-05-16
BR7301296D0 (pt) 1974-05-16
JPS4887101A (sv) 1973-11-16
FR2173174B1 (sv) 1975-08-22

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