FI344574A - - Google Patents

Info

Publication number
FI344574A
FI344574A FI3445/74A FI344574A FI344574A FI 344574 A FI344574 A FI 344574A FI 3445/74 A FI3445/74 A FI 3445/74A FI 344574 A FI344574 A FI 344574A FI 344574 A FI344574 A FI 344574A
Authority
FI
Finland
Application number
FI3445/74A
Other languages
Finnish (fi)
Inventor
J A Lukes
Original Assignee
Erco Envirotech 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 Erco Envirotech Ltd filed Critical Erco Envirotech Ltd
Publication of FI344574A publication Critical patent/FI344574A/fi

Links

Classifications

    • 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
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
    • C01D3/00—Halides of sodium, potassium or alkali metals in general
    • C01D3/04—Chlorides
    • C01D3/06—Preparation by working up brines; seawater or spent lyes
    • 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
    • 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
    • Y10S423/00—Chemistry of inorganic compounds
    • Y10S423/03—Papermaking liquor

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Paper (AREA)
FI3445/74A 1973-12-03 1974-11-28 FI344574A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US420876A US3909344A (en) 1973-12-03 1973-12-03 Removal of sodium chloride from pulp mill operations

Publications (1)

Publication Number Publication Date
FI344574A true FI344574A (en) 1975-06-04

Family

ID=23668199

Family Applications (1)

Application Number Title Priority Date Filing Date
FI3445/74A FI344574A (en) 1973-12-03 1974-11-28

Country Status (6)

Country Link
US (1) US3909344A (en)
JP (1) JPS5088303A (en)
BR (1) BR7410122A (en)
CA (1) CA1070457A (en)
FI (1) FI344574A (en)
SE (1) SE7414971L (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1058358A (en) * 1973-08-07 1979-07-17 Erco Envirotech Ltd. Removal of dissolved salts from sulphide liquors
FI53728C (en) * 1974-03-12 1978-07-10 Ahlstroem Oy FOERFARANDE FOER AOTERVINNING AV KEMIKALIER UR AVLUTAR FRAON SULFATCELLULOSAKOK OCH AVFALLSVATTEN FRAON BLEKNING
US3954552A (en) * 1974-08-05 1976-05-04 Erco Envirotech Ltd. Removal of sodium chloride from pulp mill systems
US3945880A (en) * 1974-08-05 1976-03-23 Erco Envirotech Ltd. Sodium chloride removal in pulp mill systems
ZA761255B (en) * 1975-03-11 1977-03-30 Erco Envirotech Ltd Bleachplant operation
US4049490A (en) * 1976-02-23 1977-09-20 Veniamin Petrovich Zaplatin Electrodialysis of bleaching effluent
ZA762995B (en) * 1976-05-19 1977-07-27 Sappi Ltd Improvements relating to recovery of chemicals
SE434860B (en) * 1976-11-15 1984-08-20 Mo Och Domsjoe Ab PROCEDURE FOR EXPOSURE OF CHLORIDES FROM CHEMICALS RECOVERY SYSTEMS BY SODIUM-BASED PREPARATION PROCESSES
CA1113207A (en) * 1978-04-19 1981-12-01 Allan F. Gilbert Removal of potassium values from pulp mill liquors
FI77064C (en) * 1985-04-29 1989-01-10 Tampella Oy Ab Process for boiling and bleaching cellulose
SE8605120L (en) * 1986-08-14 1988-02-15 Alby Klorat Ab SETTING UP SULFIDE-FREE ALKALILUT
EP0584161B1 (en) * 1991-05-13 1997-07-16 H.A. Simons Ltd. White liquor preparation and pulping process
FI95608B (en) * 1994-06-17 1995-11-15 Ahlstroem Oy Process for preparing coke liquor by crystallization of green liquor
US5567293A (en) * 1994-12-22 1996-10-22 Pulp And Paper Research Institute Of Canada Electromembrane processes for the treatment of kraft mill electrostatic precipitator catch
WO2013040205A1 (en) * 2011-09-16 2013-03-21 Sabic Innovative Plastics Ip B.V. Method to remove carbonate from a caustic scrubber waste stream

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1791281A (en) * 1929-04-29 1931-02-03 Morse Harry Wheeler Production of sodium-carbonate liquor
US2642399A (en) * 1949-02-23 1953-06-16 Robert S Aries Process for dissolving ash containing sodium sulfide and sodium carbonate
US2862887A (en) * 1955-10-03 1958-12-02 Western Preciptation Corp Process for production and separation of sodium sulfide and sodium carbonate from spent liquors
US3396076A (en) * 1964-12-10 1968-08-06 Parkinson Crosby & Works Inc Method of recovery of chemical values of a kraft pulping process of cellulosic material
GB1217833A (en) * 1967-01-16 1970-12-31 Electric Reduction Co Improved cellulosic pulp process
US3560329A (en) * 1968-12-27 1971-02-02 Combustion Eng Process for low sulfide chemical recovery
US3746612A (en) * 1969-12-30 1973-07-17 Erco Envirotech Ltd Removal of sodium chloride from white pulping liquor
CA947010A (en) * 1971-02-23 1974-05-14 Erco Envirotech Ltd. Chlorination of alkali metal carbonates recovered from the production of pulp

Also Published As

Publication number Publication date
SE7414971L (en) 1975-06-04
JPS5088303A (en) 1975-07-16
BR7410122A (en) 1976-06-08
US3909344A (en) 1975-09-30
CA1070457A (en) 1980-01-29

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