FI861881A0 - Saett att framstaella foer natriumditionitframstaellning anvaendbara kompositioner och anvaendningen av saodana kompositioner. - Google Patents

Saett att framstaella foer natriumditionitframstaellning anvaendbara kompositioner och anvaendningen av saodana kompositioner.

Info

Publication number
FI861881A0
FI861881A0 FI861881A FI861881A FI861881A0 FI 861881 A0 FI861881 A0 FI 861881A0 FI 861881 A FI861881 A FI 861881A FI 861881 A FI861881 A FI 861881A FI 861881 A0 FI861881 A0 FI 861881A0
Authority
FI
Finland
Prior art keywords
kompositioner
sulphur dioxide
sodium
ditionitframstaellning
saodana
Prior art date
Application number
FI861881A
Other languages
English (en)
Other versions
FI861881A (fi
FI79826C (fi
FI79826B (fi
Inventor
Ragnar Bernhard
Original Assignee
Stora Kopparbergs Bergslags 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 Stora Kopparbergs Bergslags Ab filed Critical Stora Kopparbergs Bergslags Ab
Publication of FI861881A0 publication Critical patent/FI861881A0/fi
Publication of FI861881A publication Critical patent/FI861881A/fi
Application granted granted Critical
Publication of FI79826B publication Critical patent/FI79826B/fi
Publication of FI79826C publication Critical patent/FI79826C/fi

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B17/00—Sulfur; Compounds thereof
    • C01B17/64—Thiosulfates; Dithionites; Polythionates
    • C01B17/66—Dithionites or hydrosulfites (S2O42-)
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
    • C01D5/00—Sulfates or sulfites of sodium, potassium or alkali metals in general
    • C01D5/14—Preparation of sulfites
FI861881A 1985-05-07 1986-05-06 Saett att framstaella foer natriumditionitframstaellning anvaendbara kompositioner och anvaendningen av saodana kompositioner. FI79826C (fi)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US06/731,296 US4680136A (en) 1985-05-07 1985-05-07 Method for preparing compositions which can be used in the production of sodium dithionite; and the use of such compositions
US73129685 1985-05-07

Publications (4)

Publication Number Publication Date
FI861881A0 true FI861881A0 (fi) 1986-05-06
FI861881A FI861881A (fi) 1986-11-08
FI79826B FI79826B (fi) 1989-11-30
FI79826C FI79826C (fi) 1990-03-12

Family

ID=24938913

Family Applications (1)

Application Number Title Priority Date Filing Date
FI861881A FI79826C (fi) 1985-05-07 1986-05-06 Saett att framstaella foer natriumditionitframstaellning anvaendbara kompositioner och anvaendningen av saodana kompositioner.

Country Status (6)

Country Link
US (1) US4680136A (fi)
EP (1) EP0202210B1 (fi)
AT (1) ATE50750T1 (fi)
DE (1) DE3669302D1 (fi)
FI (1) FI79826C (fi)
NO (1) NO168699C (fi)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IN172015B (fi) * 1986-01-03 1993-03-13 Thiokol Morton Inc
US4788041A (en) * 1986-12-22 1988-11-29 Morton Thiokol, Inc. Apparatus for the production of sodium hydrosulfite
US4859447A (en) * 1986-12-22 1989-08-22 Morton Thiokol, Inc. Process for the production of sodium hydrosulfite
CA1340248C (en) * 1989-01-05 1998-12-15 Morton International, Inc. High yield sodium hydrosulfite generation
US5336479A (en) * 1989-01-05 1994-08-09 Morton International, Inc. High yield sodium hydrosulfite generation
US5094833A (en) * 1989-01-05 1992-03-10 Morton International, Inc. High yield sodium hydrosulfite generation
US5516501A (en) * 1992-05-05 1996-05-14 International Dioxcide Process for the preparation of aqueous solutions of bromine based disinfectants
EP1478593A4 (en) * 2001-11-13 2008-07-02 Montgomery Chemicals Llc AQUEOUS BOROHIDEIDE COMPOSITIONS
FI20030928A (fi) * 2003-06-19 2004-12-20 Kvaerner Power Oy Menetelmä mekaanisen massan valkaisussa käytettävän natriumditioniitin valmistamiseksi
US10850982B2 (en) * 2015-04-29 2020-12-01 Basf Se Stabilization of sodium dithionite by means of various additives

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA598761A (en) * 1960-05-24 Avesta Jernverks Aktiebolag Methods and apparatus for the preparation of bisulfite solutions
US719720A (en) * 1899-12-20 1903-02-03 Basf Ag Hydrosulfite for reducing indigo.
GB469724A (en) * 1936-03-03 1937-07-30 Gustaf Haglund Plant and process for the production of bisulphite solutions
US2991152A (en) * 1957-01-16 1961-07-04 Goerrig Method of preparing sodium and potassium hyposulphite
US3226185A (en) * 1961-11-09 1965-12-28 Ethyl Corp Method of preparing an alkali metal dithionite
US3216790A (en) * 1962-03-22 1965-11-09 Nat Distillers Chem Corp Preparation of sodium hydrosulfite
US3477815A (en) * 1966-11-15 1969-11-11 Wellman Lord Inc Process for recovering sulfur dioxide from flue gas
JPS4814316B1 (fi) * 1969-01-10 1973-05-07
US3542511A (en) * 1969-01-27 1970-11-24 Chemical Construction Corp Removal of sulfur dioxide from waste gases
US3917807A (en) * 1969-10-30 1975-11-04 Sumitomo Chemical Co Method for producing anhydrous sodium dithionite
US3826812A (en) * 1971-10-22 1974-07-30 Basic Inc Treatment of flue gases and the like
US3826818A (en) * 1972-08-03 1974-07-30 Pennwalt Corp Method for making anhydrous alkali metal hydrosulfites
US3933676A (en) * 1974-04-08 1976-01-20 Ventron Corporation Stabilized aqueous solutions of sodium borohydride
DE2442418B2 (de) * 1974-09-05 1980-04-17 Basf Ag, 6700 Ludwigshafen Verfahren zur Herstellung von Natriumdithionit
US4100098A (en) * 1976-10-26 1978-07-11 Olin Corporation Stabilized solutions of sodium dithionite
US4148684A (en) * 1976-11-08 1979-04-10 Mei Systems Inc. Methods for recovery and recycling of chemicals from sodium sulfite and sodium bisulfite pulping operations
EP0027369A1 (en) * 1979-10-12 1981-04-22 Thiokol Corporation Stable precursor solution for the generation of hydrosulfite and use thereof in bleaching wood pulp, brightening kaolin clay and reducing vat dyestuffs to their leuco form
US4283303A (en) * 1980-06-05 1981-08-11 Virginia Chemicals Inc. Process for manufacture of stable sodium dithionite slurries
US4379130A (en) * 1981-09-21 1983-04-05 Andersen 2000 Inc. Process for regenerating scrubbing solutions
SE446720B (sv) * 1983-09-08 1986-10-06 Stora Kopparbergs Bergslags Ab Sett vid framstellning av for natriumditionitframstellning anvendbara kompositioner samt anvendningen derav
DE3427297C1 (de) * 1984-07-24 1986-04-10 GEA Wiegand GmbH, 7505 Ettlingen Verfahren zur Herstellung einer Natriumdithionitlösung

Also Published As

Publication number Publication date
NO861801L (no) 1986-11-10
US4680136A (en) 1987-07-14
FI861881A (fi) 1986-11-08
FI79826C (fi) 1990-03-12
EP0202210A2 (en) 1986-11-20
FI79826B (fi) 1989-11-30
EP0202210B1 (en) 1990-03-07
NO168699B (no) 1991-12-16
ATE50750T1 (de) 1990-03-15
EP0202210A3 (en) 1987-08-12
DE3669302D1 (de) 1990-04-12
NO168699C (no) 1992-03-25

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Legal Events

Date Code Title Description
PC Transfer of assignment of patent

Owner name: KEMIRA KEMI AB

FG Patent granted

Owner name: KEMIRA KEMI AB

MA Patent expired