RO79490B1 - Procedeu de obtinere a acidului wolframic si a sulfatului feros heptahidrat din tunder de otel rapid - Google Patents
Procedeu de obtinere a acidului wolframic si a sulfatului feros heptahidrat din tunder de otel rapidInfo
- Publication number
- RO79490B1 RO79490B1 RO96476A RO9647679A RO79490B1 RO 79490 B1 RO79490 B1 RO 79490B1 RO 96476 A RO96476 A RO 96476A RO 9647679 A RO9647679 A RO 9647679A RO 79490 B1 RO79490 B1 RO 79490B1
- Authority
- RO
- Romania
- Prior art keywords
- ferrous sulphate
- sulphate heptahydrate
- rapid steel
- tungsten acid
- steel scale
- Prior art date
Links
- 229910000831 Steel Inorganic materials 0.000 title abstract 3
- 239000002253 acid Substances 0.000 title abstract 3
- SURQXAFEQWPFPV-UHFFFAOYSA-L iron(2+) sulfate heptahydrate Chemical compound O.O.O.O.O.O.O.[Fe+2].[O-]S([O-])(=O)=O SURQXAFEQWPFPV-UHFFFAOYSA-L 0.000 title abstract 3
- 239000010959 steel Substances 0.000 title abstract 3
- 238000004519 manufacturing process Methods 0.000 title 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 title 1
- 229910052721 tungsten Inorganic materials 0.000 title 1
- 239000010937 tungsten Substances 0.000 title 1
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 abstract 2
- 150000007513 acids Chemical class 0.000 abstract 1
- 239000011790 ferrous sulphate Substances 0.000 abstract 1
- 235000003891 ferrous sulphate Nutrition 0.000 abstract 1
- 229910052500 inorganic mineral Inorganic materials 0.000 abstract 1
- 229910000359 iron(II) sulfate Inorganic materials 0.000 abstract 1
- 235000010755 mineral Nutrition 0.000 abstract 1
- 239000011707 mineral Substances 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
Landscapes
- Inorganic Compounds Of Heavy Metals (AREA)
Abstract
Procedeul de obtinere a acidului wolframic si a sulfatului feros heptahidrat din tunder de otel rapid, prin tratarea tunderului macinat pîna la dimensiuni sub un 1 mm, cu acizi minerali, caracterizat prin aceea ca, tunderul de otel rapid, cu continut de 10....22%WO3 se supune dezagregarii în doua trepte cu solutii de acid sulfuric cu concentratii cuprinse între 12 si 50% preferabil 19, 3%, sau cu solutii continînd 10....35% preferabil 7,5% sulfat feros si restul apa, reactia avînd loc la temperaturi cuprinse între 20 si 95 degree C, preferabil între 70 si 90 degree C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RO96476A RO79490B1 (ro) | 1979-02-02 | 1979-02-02 | Procedeu de obtinere a acidului wolframic si a sulfatului feros heptahidrat din tunder de otel rapid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RO96476A RO79490B1 (ro) | 1979-02-02 | 1979-02-02 | Procedeu de obtinere a acidului wolframic si a sulfatului feros heptahidrat din tunder de otel rapid |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| RO79490A2 RO79490A2 (ro) | 1983-04-29 |
| RO79490B1 true RO79490B1 (ro) | 1983-04-30 |
Family
ID=20104529
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RO96476A RO79490B1 (ro) | 1979-02-02 | 1979-02-02 | Procedeu de obtinere a acidului wolframic si a sulfatului feros heptahidrat din tunder de otel rapid |
Country Status (1)
| Country | Link |
|---|---|
| RO (1) | RO79490B1 (ro) |
-
1979
- 1979-02-02 RO RO96476A patent/RO79490B1/ro unknown
Also Published As
| Publication number | Publication date |
|---|---|
| RO79490A2 (ro) | 1983-04-29 |
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