FR2224589A1 - - Google Patents

Info

Publication number
FR2224589A1
FR2224589A1 FR7412406A FR7412406A FR2224589A1 FR 2224589 A1 FR2224589 A1 FR 2224589A1 FR 7412406 A FR7412406 A FR 7412406A FR 7412406 A FR7412406 A FR 7412406A FR 2224589 A1 FR2224589 A1 FR 2224589A1
Authority
FR
France
Prior art keywords
bleaching
effluent
liquor
cellulose
compounds
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.)
Granted
Application number
FR7412406A
Other languages
English (en)
Other versions
FR2224589B3 (fr
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.)
JAAKKO POYRY CO Oy
Original Assignee
JAAKKO POYRY CO Oy
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 JAAKKO POYRY CO Oy filed Critical JAAKKO POYRY CO Oy
Publication of FR2224589A1 publication Critical patent/FR2224589A1/fr
Application granted granted Critical
Publication of FR2224589B3 publication Critical patent/FR2224589B3/fr
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
    • D21C11/02—Regeneration of pulp liquors or effluent waste waters of acid, neutral or alkaline sulfite lye

Landscapes

  • Paper (AREA)
  • Treating Waste Gases (AREA)
  • Removal Of Specific Substances (AREA)
  • Inks, Pencil-Leads, Or Crayons (AREA)
  • Ink Jet Recording Methods And Recording Media Thereof (AREA)
FR7412406A 1973-04-09 1974-04-09 Expired FR2224589B3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI1100/73A FI51604B (fr) 1973-04-09 1973-04-09

Publications (2)

Publication Number Publication Date
FR2224589A1 true FR2224589A1 (fr) 1974-10-31
FR2224589B3 FR2224589B3 (fr) 1978-05-05

Family

ID=8505103

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7412406A Expired FR2224589B3 (fr) 1973-04-09 1974-04-09

Country Status (9)

Country Link
JP (1) JPS5040801A (fr)
AT (1) ATA295574A (fr)
CA (1) CA1025158A (fr)
CH (1) CH609395A5 (fr)
CS (1) CS223859B2 (fr)
DE (1) DE2417084C3 (fr)
FI (1) FI51604B (fr)
FR (1) FR2224589B3 (fr)
NO (1) NO141858B (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS579258B1 (fr) * 1971-05-15 1982-02-20
US4155804A (en) * 1975-03-17 1979-05-22 International Telephone And Telegraph Corporation Removal of volatile organic components from spent sulfite effluent

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1217833A (en) * 1967-01-16 1970-12-31 Electric Reduction Co Improved cellulosic pulp process

Also Published As

Publication number Publication date
CA1025158A (fr) 1978-01-31
NO141858B (no) 1980-02-11
FI51604B (fr) 1976-11-01
ATA295574A (de) 1978-01-15
DE2417084C3 (de) 1986-01-02
DE2417084A1 (de) 1974-10-24
NO741270L (no) 1974-10-10
CH609395A5 (en) 1979-02-28
CS223859B2 (en) 1983-11-25
FR2224589B3 (fr) 1978-05-05
JPS5040801A (fr) 1975-04-14
DE2417084B2 (de) 1978-12-14

Similar Documents

Publication Publication Date Title
US4196043A (en) Kraft pulp bleaching and recovery process
GB1217833A (en) Improved cellulosic pulp process
NO132361B (fr)
FI945514A0 (fi) Menetelmä ja laite valkaisimon jätevesien käsittelemiseksi
FI861967A (fi) Sulfitkokfoerfarande foer framstaellning av cellulosa ur lignocellulosahaltiga material inkluderande aotervinning av kokkemikalier.
FR2224589A1 (fr)
FI77064C (fi) Foerfarande foer kokning och blekning av cellulosa.
US2226356A (en) Process of purifying cellulosic material
SE435302B (sv) Sett vid behandling av avlutar fran delignifiering av lignocellulosamaterial med kloridbildande blekmedel
NO762084L (fr)
NO129262B (fr)
FI76136B (fi) Foerfarande foer blekning av ns-aq- eller sap-massa.
JPS6055638B2 (ja) オゾンによるパルプ漂白法
GB1544216A (en) Bleaching and digesting cellulosic pulp
US4049490A (en) Electrodialysis of bleaching effluent
US3481827A (en) Process for bleaching wood pulp with fluorine,hydrofluoric acid,and oxygen difluoride
US3174896A (en) Treatment of spent caustic solution
SE8106203L (sv) Sett for polysulfidbehandling av lignocellulosamaterial vid alkalisk massaframstellning
FI941238A (fi) Menetelmä massan otsonivalkaisussa
US2364177A (en) Manufacture of bleached kraft pulp
FI59274B (fi) Klorfri flerstegsblekning av cellulosa
GB1474626A (en) Process for deodorising waste gases preferably containing co2
ES429003A1 (es) Un procedimiento para fabricas de pasta de madera.
CA1089161A (fr) Exploitation d'une installation de fabrication de pate kraft blanche
GB1074111A (en) Processes useful in the manufacture of bleached pulp