BR7708509A - Processo de digestao e alvejamento de celulose - Google Patents

Processo de digestao e alvejamento de celulose

Info

Publication number
BR7708509A
BR7708509A BR7708509A BR7708509A BR7708509A BR 7708509 A BR7708509 A BR 7708509A BR 7708509 A BR7708509 A BR 7708509A BR 7708509 A BR7708509 A BR 7708509A BR 7708509 A BR7708509 A BR 7708509A
Authority
BR
Brazil
Prior art keywords
targeting
cellulose
digesting process
digesting
cellulose targeting
Prior art date
Application number
BR7708509A
Other languages
English (en)
Portuguese (pt)
Inventor
W Fuller
Original Assignee
Hooker Chemicals Plastics Corp
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 Hooker Chemicals Plastics Corp filed Critical Hooker Chemicals Plastics Corp
Publication of BR7708509A publication Critical patent/BR7708509A/pt

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
    • D21C11/0064—Aspects concerning the production and the treatment of green and white liquors, e.g. causticizing green liquor
    • D21C11/0071—Treatment of green or white liquors with gases, e.g. with carbon dioxide for carbonation; Expulsion of gaseous compounds, e.g. hydrogen sulfide, from these liquors by this treatment (stripping); Optional separation of solid compounds formed in the liquors by this treatment
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B11/00—Oxides or oxyacids of halogens; Salts thereof
    • C01B11/02—Oxides of chlorine
    • C01B11/022—Chlorine dioxide (ClO2)
    • C01B11/023—Preparation from chlorites or chlorates
    • C01B11/025—Preparation from chlorites or chlorates from chlorates without any other reaction reducing agent than chloride ions
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
    • C01D7/00—Carbonates of sodium, potassium or alkali metals in general
    • C01D7/07—Preparation from the hydroxides
    • 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
    • D21C9/12—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds
    • D21C9/14—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds with ClO2 or chlorites

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Inorganic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Materials Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Materials For Medical Uses (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
BR7708509A 1976-12-22 1977-12-21 Processo de digestao e alvejamento de celulose BR7708509A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US75365676A 1976-12-22 1976-12-22

Publications (1)

Publication Number Publication Date
BR7708509A true BR7708509A (pt) 1978-09-05

Family

ID=25031593

Family Applications (1)

Application Number Title Priority Date Filing Date
BR7708509A BR7708509A (pt) 1976-12-22 1977-12-21 Processo de digestao e alvejamento de celulose

Country Status (12)

Country Link
JP (1) JPS5381703A (fi)
AU (1) AU510914B2 (fi)
BR (1) BR7708509A (fi)
DE (1) DE2757474C3 (fi)
FI (1) FI67243C (fi)
FR (1) FR2396118A1 (fi)
MX (1) MX148348A (fi)
NO (1) NO774357L (fi)
NZ (1) NZ185958A (fi)
PT (1) PT67443B (fi)
SE (1) SE435304B (fi)
SU (1) SU934912A3 (fi)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE8204266L (sv) * 1982-07-12 1984-01-13 Korsnaes Marma Ab Forfarande for teckande av kemikalieforlusterna vid massaframstellning
FI77064C (fi) * 1985-04-29 1989-01-10 Tampella Oy Ab Foerfarande foer kokning och blekning av cellulosa.

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1074111A (en) * 1964-04-02 1967-06-28 Electric Reduction Co Processes useful in the manufacture of bleached pulp
JPS503801A (fi) * 1973-05-21 1975-01-16
JPS5013361A (fi) * 1973-06-07 1975-02-12

Also Published As

Publication number Publication date
FI67243C (fi) 1985-02-11
SE435304B (sv) 1984-09-17
NZ185958A (en) 1979-11-01
SU934912A3 (ru) 1982-06-07
NO774357L (no) 1978-06-23
FR2396118B1 (fi) 1983-01-14
AU3166977A (en) 1979-06-21
MX148348A (es) 1983-04-14
PT67443A (en) 1978-01-01
DE2757474C3 (de) 1980-06-19
PT67443B (en) 1979-05-23
DE2757474A1 (de) 1978-06-29
AU510914B2 (en) 1980-07-17
FI773860A (fi) 1978-06-23
DE2757474B2 (de) 1979-09-13
JPS5381703A (en) 1978-07-19
FR2396118A1 (fr) 1979-01-26
FI67243B (fi) 1984-10-31
SE7714601L (sv) 1978-06-23

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