SE8304825L - SET TO MAKE SODIUM DITIONITY PREPARATION USEFUL COMPOSITIONS AND THE USE OF SUCH COMPOSITIONS - Google Patents
SET TO MAKE SODIUM DITIONITY PREPARATION USEFUL COMPOSITIONS AND THE USE OF SUCH COMPOSITIONSInfo
- Publication number
- SE8304825L SE8304825L SE8304825A SE8304825A SE8304825L SE 8304825 L SE8304825 L SE 8304825L SE 8304825 A SE8304825 A SE 8304825A SE 8304825 A SE8304825 A SE 8304825A SE 8304825 L SE8304825 L SE 8304825L
- Authority
- SE
- Sweden
- Prior art keywords
- compositions
- ditionity
- na2o
- make sodium
- preparation useful
- Prior art date
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-)
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Treating Waste Gases (AREA)
- Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
A method for producing compositions used in sodium dithionite production is presented, in which SO2 is brought into contact with a recirculating water solution of NaOH and previously absorbed SO2 at a ratio between SO2 and the sum of SO2 and Na2O of 0.61-0.66, preferably 0.63-0.65, after which the mixture is transferred to a pressure vessel and liquid SO2 is introduced into the mixture at a ratio between SO2 and the sum of SO2 and Na2O of 0.75-0.79, preferably around 0.775, and a concentration of SO2+Na2O of 40-46 percent by weight, preferably 43-44 percent by weight. The invention is also the use of the produced composition for dithionite production.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE8304825A SE446720B (en) | 1983-09-08 | 1983-09-08 | Method for producing compositions used in sodium dithionite production and the use thereof |
FI843490A FI74452C (en) | 1983-09-08 | 1984-09-06 | Methods for preparing sodium dithionite preparation useful compositions and the use of such compositions. |
NO843566A NO162276C (en) | 1983-09-08 | 1984-09-07 | PROCEDURE FOR THE PREPARATION OF SODIUM DITIONIT PREPARATION FOR USE OF MIXTURES AND APPLICATION OF SUCH MIXTURES. |
JP61262892A JPH0747483B2 (en) | 1983-09-08 | 1986-11-06 | Process for producing composition usable for producing sodium dithionite |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE8304825A SE446720B (en) | 1983-09-08 | 1983-09-08 | Method for producing compositions used in sodium dithionite production and the use thereof |
Publications (3)
Publication Number | Publication Date |
---|---|
SE8304825D0 SE8304825D0 (en) | 1983-09-08 |
SE8304825L true SE8304825L (en) | 1985-03-09 |
SE446720B SE446720B (en) | 1986-10-06 |
Family
ID=20352414
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE8304825A SE446720B (en) | 1983-09-08 | 1983-09-08 | Method for producing compositions used in sodium dithionite production and the use thereof |
Country Status (4)
Country | Link |
---|---|
JP (1) | JPH0747483B2 (en) |
FI (1) | FI74452C (en) |
NO (1) | NO162276C (en) |
SE (1) | SE446720B (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4680136A (en) * | 1985-05-07 | 1987-07-14 | Stora Kopparbergs Bergslags Ab | Method for preparing compositions which can be used in the production of sodium dithionite; and the use of such compositions |
-
1983
- 1983-09-08 SE SE8304825A patent/SE446720B/en not_active IP Right Cessation
-
1984
- 1984-09-06 FI FI843490A patent/FI74452C/en not_active IP Right Cessation
- 1984-09-07 NO NO843566A patent/NO162276C/en not_active IP Right Cessation
-
1986
- 1986-11-06 JP JP61262892A patent/JPH0747483B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
NO162276C (en) | 1989-12-06 |
JPH0747483B2 (en) | 1995-05-24 |
SE8304825D0 (en) | 1983-09-08 |
JPS63117901A (en) | 1988-05-21 |
NO843566L (en) | 1985-03-11 |
FI843490A (en) | 1985-03-09 |
SE446720B (en) | 1986-10-06 |
FI843490A0 (en) | 1984-09-06 |
FI74452B (en) | 1987-10-30 |
NO162276B (en) | 1989-08-28 |
FI74452C (en) | 1988-02-08 |
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Legal Events
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