CA991462A - Method at periodic cooking of lignocellulosic material - Google Patents

Method at periodic cooking of lignocellulosic material

Info

Publication number
CA991462A
CA991462A CA183,760A CA183760A CA991462A CA 991462 A CA991462 A CA 991462A CA 183760 A CA183760 A CA 183760A CA 991462 A CA991462 A CA 991462A
Authority
CA
Canada
Prior art keywords
lignocellulosic material
cooking
periodic
periodic cooking
lignocellulosic
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
CA183,760A
Other versions
CA183760S (en
Inventor
Sture O.E. Backlund
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.)
SCA Projekt AB
Original Assignee
SCA Projekt AB
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 SCA Projekt AB filed Critical SCA Projekt AB
Application granted granted Critical
Publication of CA991462A publication Critical patent/CA991462A/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
    • D21C3/00—Pulping cellulose-containing materials
    • D21C3/22—Other features of pulping 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
    • D21C3/00—Pulping cellulose-containing materials
    • D21C3/02—Pulping cellulose-containing materials with inorganic bases or alkaline reacting compounds, e.g. sulfate 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
    • D21C3/00—Pulping cellulose-containing materials
    • D21C3/22—Other features of pulping processes
    • D21C3/26—Multistage 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
    • D21C7/00—Digesters
    • D21C7/10—Heating devices
CA183,760A 1973-05-14 1973-10-18 Method at periodic cooking of lignocellulosic material Expired CA991462A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7306760A SE434411B (en) 1973-05-14 1973-05-14 WAY TO IMPROVE HOMOGENITY BY PERIODIC COOKING OF LIGNOCELLULOS MATERIAL

Publications (1)

Publication Number Publication Date
CA991462A true CA991462A (en) 1976-06-22

Family

ID=20317466

Family Applications (1)

Application Number Title Priority Date Filing Date
CA183,760A Expired CA991462A (en) 1973-05-14 1973-10-18 Method at periodic cooking of lignocellulosic material

Country Status (3)

Country Link
US (1) US3907631A (en)
CA (1) CA991462A (en)
SE (1) SE434411B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4188261A (en) * 1975-04-18 1980-02-12 Sca Development Aktiebolag Method of improving the homogeneity of lignocellulose containing material

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1831206A (en) * 1931-03-06 1931-11-10 Paper Patents Co Digester system
US1905050A (en) * 1932-04-29 1933-04-25 Nekoosa Edwards Paper Co Apparatus for and method of cooking wood pulp
US3298889A (en) * 1963-05-20 1967-01-17 Meyer Geo J Mfg Co Label picker apparatus
US3467573A (en) * 1965-12-13 1969-09-16 Improved Machinery Inc Upflow digester containing means for separate removal of wash liquor and pulping liquor and method of pulping in said digester

Also Published As

Publication number Publication date
US3907631A (en) 1975-09-23
SE434411B (en) 1984-07-23

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