RO87923B1 - Process for obtaining barium sulphate and sodium sulphide - Google Patents
Process for obtaining barium sulphate and sodium sulphideInfo
- Publication number
- RO87923B1 RO87923B1 RO112896A RO11289680A RO87923B1 RO 87923 B1 RO87923 B1 RO 87923B1 RO 112896 A RO112896 A RO 112896A RO 11289680 A RO11289680 A RO 11289680A RO 87923 B1 RO87923 B1 RO 87923B1
- Authority
- RO
- Romania
- Prior art keywords
- sodium
- barium
- sulphate
- solution
- sodium sulphide
- Prior art date
Links
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 title abstract 6
- GRVFOGOEDUUMBP-UHFFFAOYSA-N sodium sulfide (anhydrous) Chemical compound [Na+].[Na+].[S-2] GRVFOGOEDUUMBP-UHFFFAOYSA-N 0.000 title abstract 4
- 238000000034 method Methods 0.000 title abstract 3
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 abstract 3
- 229910052938 sodium sulfate Inorganic materials 0.000 abstract 2
- 235000011152 sodium sulphate Nutrition 0.000 abstract 2
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 abstract 1
- 229910052788 barium Inorganic materials 0.000 abstract 1
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 abstract 1
- CJDPJFRMHVXWPT-UHFFFAOYSA-N barium sulfide Chemical compound [S-2].[Ba+2] CJDPJFRMHVXWPT-UHFFFAOYSA-N 0.000 abstract 1
- 238000001704 evaporation Methods 0.000 abstract 1
- 230000008020 evaporation Effects 0.000 abstract 1
- 238000001914 filtration Methods 0.000 abstract 1
- 239000002244 precipitate Substances 0.000 abstract 1
- UAPANLBJMXYHJO-UHFFFAOYSA-K sodium dihydroxy(dioxo)chromium hydrogen sulfate Chemical compound S([O-])(O)(=O)=O.[Na+].[Cr](=O)(=O)(O)O UAPANLBJMXYHJO-UHFFFAOYSA-K 0.000 abstract 1
- 229910052979 sodium sulfide Inorganic materials 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
Landscapes
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Abstract
Inventia se refera la un procedeu de obtinere a sulfatului de bariu si a sulfurii de sodiu din solutie de sulfura de bariu cu concentratie de 100...200 g/l si sulfat de sodiu, care consta în aceea ca, se trateaza solutia de sulfat de bariu cu sulfat de sodiu cromos solubizat în solutie de sulfura de sodiu, avînd în final concentratia de 10%, reactia avînd loc la temperatura de 60...80 degree C, precipitatul format de sulfat de bariu se separa, se spala si se usuca pîna la umiditatea de 1%, iar solutia de sulfura de sodiu separata dupa filtrare, se decanteaza si se concentreaza prin evaporare, apele de spalare fiind apoi recirculate în procesul de solubilizare a sulfatului de sodiu.The invention relates to a process for obtaining barium sulphate and sodium sulphide from a barium sulfide solution with a concentration of 100 ... 200 g / l and sodium sulphate, which consists in treating the sulfate solution of barium with sodium chromate sulphate dissolved in sodium sulphide solution, finally having a concentration of 10%, the reaction being carried out at a temperature of 60-80 ° C, the precipitate formed of barium sulfate was separated, washed and dried to 1% humidity, and the separated sodium sulfide solution after filtration is decanted and concentrated by evaporation, the wash water being then recirculated in the sodium sulfate solubilisation process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RO80112896A RO87923A2 (en) | 1980-12-16 | 1980-12-16 | PROCESS FOR OBTAINING BARIUM SULFATE AND SODIUM SULFUR |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RO80112896A RO87923A2 (en) | 1980-12-16 | 1980-12-16 | PROCESS FOR OBTAINING BARIUM SULFATE AND SODIUM SULFUR |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| RO87923B1 true RO87923B1 (en) | 1985-12-02 |
| RO87923A2 RO87923A2 (en) | 1985-12-20 |
Family
ID=20114043
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RO80112896A RO87923A2 (en) | 1980-12-16 | 1980-12-16 | PROCESS FOR OBTAINING BARIUM SULFATE AND SODIUM SULFUR |
Country Status (1)
| Country | Link |
|---|---|
| RO (1) | RO87923A2 (en) |
-
1980
- 1980-12-16 RO RO80112896A patent/RO87923A2/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| RO87923A2 (en) | 1985-12-20 |
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