RO86329B1 - Procedeu de obtinere a selenitului de zinc - Google Patents
Procedeu de obtinere a selenitului de zincInfo
- Publication number
- RO86329B1 RO86329B1 RO109952A RO10995283A RO86329B1 RO 86329 B1 RO86329 B1 RO 86329B1 RO 109952 A RO109952 A RO 109952A RO 10995283 A RO10995283 A RO 10995283A RO 86329 B1 RO86329 B1 RO 86329B1
- Authority
- RO
- Romania
- Prior art keywords
- selenium
- zinc
- acid
- zinc sulfate
- selenite
- Prior art date
Links
- PEUPCBAALXHYHP-UHFFFAOYSA-L zinc;selenite Chemical compound [Zn+2].[O-][Se]([O-])=O PEUPCBAALXHYHP-UHFFFAOYSA-L 0.000 title abstract 3
- 238000004519 manufacturing process Methods 0.000 title 1
- BUGBHKTXTAQXES-UHFFFAOYSA-N Selenium Chemical compound [Se] BUGBHKTXTAQXES-UHFFFAOYSA-N 0.000 abstract 5
- 239000011669 selenium Substances 0.000 abstract 5
- 229910052711 selenium Inorganic materials 0.000 abstract 5
- NWONKYPBYAMBJT-UHFFFAOYSA-L zinc sulfate Chemical compound [Zn+2].[O-]S([O-])(=O)=O NWONKYPBYAMBJT-UHFFFAOYSA-L 0.000 abstract 5
- 229960001763 zinc sulfate Drugs 0.000 abstract 4
- 229910000368 zinc sulfate Inorganic materials 0.000 abstract 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 abstract 3
- 239000002253 acid Substances 0.000 abstract 3
- 238000000034 method Methods 0.000 abstract 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 abstract 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 abstract 1
- 238000001914 filtration Methods 0.000 abstract 1
- 229910017604 nitric acid Inorganic materials 0.000 abstract 1
- 230000001590 oxidative effect Effects 0.000 abstract 1
- 230000001376 precipitating effect Effects 0.000 abstract 1
- 238000001556 precipitation Methods 0.000 abstract 1
- 229910052708 sodium Inorganic materials 0.000 abstract 1
- 239000011734 sodium Substances 0.000 abstract 1
- 239000012453 solvate Substances 0.000 abstract 1
- 239000011686 zinc sulphate Substances 0.000 abstract 1
- 235000009529 zinc sulphate Nutrition 0.000 abstract 1
Landscapes
- Inorganic Compounds Of Heavy Metals (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
Inventia se refera la un procedeu de obtinere a selenitului de zinc, prin oxidarea seleniului cu acid azotic, tratarea acidului selenios cu hidroxid de sodiu si separarea produsului prin precipitare cu sulfat de zinc, efectuîndu-se precipitarea solutiei cu sulfat de zinc în exces de 10%, conform inventiei principale 75575, procedeu care conform prezentei inventii, în scopul obtinerii unui produs pur si a diminuarii pierderilor de seleniu si de sulfat de zinc, acidul selenios este tratat cu acidul de sodiu la pH=8,6...8,9, iar solutiile reziduale cu continut de seleniu si sulfat de zinc, rezultate la filtrarea selenitului de zinc, sînt recirculate la operatia de solvire a sulfatului de zinc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RO109952A RO86329B1 (ro) | 1983-02-09 | 1983-02-09 | Procedeu de obtinere a selenitului de zinc |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RO109952A RO86329B1 (ro) | 1983-02-09 | 1983-02-09 | Procedeu de obtinere a selenitului de zinc |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| RO86329A2 RO86329A2 (ro) | 1985-03-15 |
| RO86329B1 true RO86329B1 (ro) | 1985-03-31 |
Family
ID=20112654
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RO109952A RO86329B1 (ro) | 1983-02-09 | 1983-02-09 | Procedeu de obtinere a selenitului de zinc |
Country Status (1)
| Country | Link |
|---|---|
| RO (1) | RO86329B1 (ro) |
-
1983
- 1983-02-09 RO RO109952A patent/RO86329B1/ro unknown
Also Published As
| Publication number | Publication date |
|---|---|
| RO86329A2 (ro) | 1985-03-15 |
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