SE375566C - Sett for delignifiering och blekning av en kemisk massa sa att cellulosanedbrytningen i massan vid reaktion med syre minskas - Google Patents

Sett for delignifiering och blekning av en kemisk massa sa att cellulosanedbrytningen i massan vid reaktion med syre minskas

Info

Publication number
SE375566C
SE375566C SE7106637A SE663771A SE375566C SE 375566 C SE375566 C SE 375566C SE 7106637 A SE7106637 A SE 7106637A SE 663771 A SE663771 A SE 663771A SE 375566 C SE375566 C SE 375566C
Authority
SE
Sweden
Prior art keywords
mass
cellulosan
delignification
whiting
acid
Prior art date
Application number
SE7106637A
Other languages
English (en)
Swedish (sv)
Other versions
SE375566B (enrdf_load_stackoverflow
Inventor
S K Roymoulik
Original Assignee
Int 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
Application filed by Int Paper Co filed Critical Int Paper Co
Publication of SE375566B publication Critical patent/SE375566B/xx
Publication of SE375566C publication Critical patent/SE375566C/xx

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
    • D21C9/1026—Other features in bleaching processes
    • D21C9/1036—Use of compounds accelerating or improving the efficiency of the processes
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
    • D06M11/77—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with silicon or compounds thereof
    • D06M11/79—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with silicon or compounds thereof with silicon dioxide, silicic acids or their salts

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
SE7106637A 1970-05-25 1971-05-24 Sett for delignifiering och blekning av en kemisk massa sa att cellulosanedbrytningen i massan vid reaktion med syre minskas SE375566C (sv)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US4042970A 1970-05-25 1970-05-25

Publications (2)

Publication Number Publication Date
SE375566B SE375566B (enrdf_load_stackoverflow) 1975-04-21
SE375566C true SE375566C (sv) 1984-07-16

Family

ID=21910939

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7106637A SE375566C (sv) 1970-05-25 1971-05-24 Sett for delignifiering och blekning av en kemisk massa sa att cellulosanedbrytningen i massan vid reaktion med syre minskas

Country Status (7)

Country Link
US (1) US3716448A (enrdf_load_stackoverflow)
JP (1) JPS563477B1 (enrdf_load_stackoverflow)
CA (1) CA937357A (enrdf_load_stackoverflow)
DE (1) DE2122804A1 (enrdf_load_stackoverflow)
FI (1) FI56713C (enrdf_load_stackoverflow)
FR (1) FR2093716A5 (enrdf_load_stackoverflow)
SE (1) SE375566C (enrdf_load_stackoverflow)

Families Citing this family (3)

* 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
JPS61161791U (enrdf_load_stackoverflow) * 1985-03-29 1986-10-07
SE8704041L (sv) * 1987-10-16 1989-04-17 Sca Development Ab Saett vid blekning av cellulosamassa

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1387853A (fr) * 1963-09-19 1965-02-05 Air Liquide Délignification et blanchiment des pâtes cellulosiques chimiques et mi-chimiques

Also Published As

Publication number Publication date
US3716448A (en) 1973-02-13
SE375566B (enrdf_load_stackoverflow) 1975-04-21
FI56713C (fi) 1981-11-09
FI56713B (fi) 1979-11-30
CA937357A (en) 1973-11-27
FR2093716A5 (enrdf_load_stackoverflow) 1972-01-28
DE2122804A1 (de) 1971-12-02
JPS563477B1 (enrdf_load_stackoverflow) 1981-01-24

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