CA895757A - Single-stage soda-oxygen pulping - Google Patents

Single-stage soda-oxygen pulping

Info

Publication number
CA895757A
CA895757A CA895757A CA895757DA CA895757A CA 895757 A CA895757 A CA 895757A CA 895757 A CA895757 A CA 895757A CA 895757D A CA895757D A CA 895757DA CA 895757 A CA895757 A CA 895757A
Authority
CA
Canada
Prior art keywords
oxygen pulping
stage soda
soda
stage
pulping
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
CA895757A
Inventor
E. Worster Hans
F. Pudek Marian
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.)
MacMillan Bloedel Ltd
Original Assignee
MacMillan Bloedel Ltd
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 MacMillan Bloedel Ltd filed Critical MacMillan Bloedel Ltd
Application granted granted Critical
Publication of CA895757A publication Critical patent/CA895757A/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
    • D21C1/00—Pretreatment of the finely-divided materials before digesting
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S162/00—Paper making and fiber liberation
    • Y10S162/02—Chip soaking
CA895757A 1970-04-03 1970-04-03 Single-stage soda-oxygen pulping Expired CA895757A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CA79123 1970-04-03
US2800470A 1970-04-13 1970-04-13

Publications (1)

Publication Number Publication Date
CA895757A true CA895757A (en) 1972-03-21

Family

ID=25666342

Family Applications (1)

Application Number Title Priority Date Filing Date
CA895757A Expired CA895757A (en) 1970-04-03 1970-04-03 Single-stage soda-oxygen pulping

Country Status (2)

Country Link
US (1) US3695994A (en)
CA (1) CA895757A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4172006A (en) * 1976-08-26 1979-10-23 Weyerhaeuser Company Method of delignifying wood chips with oxygen by adding cooking liquor under pressure
US4338158A (en) * 1976-04-09 1982-07-06 Weyerhaeuser Company Pulping in the presence of a protector

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3883391A (en) * 1974-01-16 1975-05-13 Int Paper Co Treatment of lignocellulosic material with an aqueous containing cyanide ions and an alkaline earth metal salt
CA1031110A (en) * 1974-12-19 1978-05-16 Macmillan Bloedel Limited High yield pulping process
US4091749A (en) * 1975-01-02 1978-05-30 Macmillan Bloedel Limited Alkaline pulping of lignocellulosic material with amine pretreatment
US4127439A (en) * 1977-01-28 1978-11-28 Crown Zellerbach Corporation Pretreatment of lignocellulose with anthraquinone prior to pulping
US4622101A (en) * 1984-10-01 1986-11-11 International Paper Company Method of oxygen bleaching with ferricyanide lignocellulosic material
US4622100A (en) * 1984-10-01 1986-11-11 International Paper Company Process for the delignification of lignocellulosic material with oxygen, ferricyanide, and a protector
AU605745B2 (en) * 1985-09-20 1991-01-24 Kimberly-Clark Worldwide, Inc. Method of preparing pulp with stabilizers and peroxide prior to mechanical refining
WO2010066026A1 (en) 2008-12-08 2010-06-17 Fpinnovations Increasing alkaline pulping yield for softwood with metal ions

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4338158A (en) * 1976-04-09 1982-07-06 Weyerhaeuser Company Pulping in the presence of a protector
US4172006A (en) * 1976-08-26 1979-10-23 Weyerhaeuser Company Method of delignifying wood chips with oxygen by adding cooking liquor under pressure

Also Published As

Publication number Publication date
US3695994A (en) 1972-10-03

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