RO94392B1 - Procedeu de obtinere a dioxidului de staniu cristalizat, de puritate avansata - Google Patents
Procedeu de obtinere a dioxidului de staniu cristalizat, de puritate avansataInfo
- Publication number
- RO94392B1 RO94392B1 RO123919A RO12391986A RO94392B1 RO 94392 B1 RO94392 B1 RO 94392B1 RO 123919 A RO123919 A RO 123919A RO 12391986 A RO12391986 A RO 12391986A RO 94392 B1 RO94392 B1 RO 94392B1
- Authority
- RO
- Romania
- Prior art keywords
- preparation
- tin dioxide
- obtaining
- crystallized tin
- purity crystallized
- Prior art date
Links
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 title abstract 6
- 238000000034 method Methods 0.000 title abstract 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 abstract 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 abstract 1
- 238000009835 boiling Methods 0.000 abstract 1
- 238000001354 calcination Methods 0.000 abstract 1
- 230000018044 dehydration Effects 0.000 abstract 1
- 238000006297 dehydration reaction Methods 0.000 abstract 1
- 238000001035 drying Methods 0.000 abstract 1
- 238000001914 filtration Methods 0.000 abstract 1
- 229910017604 nitric acid Inorganic materials 0.000 abstract 1
- 230000003647 oxidation Effects 0.000 abstract 1
- 238000007254 oxidation reaction Methods 0.000 abstract 1
- 230000001590 oxidative effect Effects 0.000 abstract 1
- PFUVRDFDKPNGAV-UHFFFAOYSA-N sodium peroxide Chemical compound [Na+].[Na+].[O-][O-] PFUVRDFDKPNGAV-UHFFFAOYSA-N 0.000 abstract 1
- 238000005406 washing Methods 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G19/00—Compounds of tin
- C01G19/02—Oxides
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
Abstract
Inventia se refera la un procedeu de obtinere a dioxidului de staniu cristalizat, de puritate avansata, care consta în oxidarea staniului granulat cu ajutorul acidului azotic concentrat la 90...95 degree C, fierberea cu apa la 90...100 degree C a oxidului hidratat obtinut la oxidare, spalarea, filtrarea si uscarea produsului, cu obtinere de dioxid de sodiu hidratat amorf, si deshidratarea acestui oxid hidratat prin calcinare la 1350...1500 degree C, cu obtinere în final a unui produs cristalin, anhidru, de puritate 99,5...99,9% SnO2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RO123919A RO94392B1 (ro) | 1986-06-28 | 1986-06-28 | Procedeu de obtinere a dioxidului de staniu cristalizat, de puritate avansata |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RO123919A RO94392B1 (ro) | 1986-06-28 | 1986-06-28 | Procedeu de obtinere a dioxidului de staniu cristalizat, de puritate avansata |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| RO94392A2 RO94392A2 (ro) | 1988-04-30 |
| RO94392B1 true RO94392B1 (ro) | 1988-05-01 |
Family
ID=20119573
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RO123919A RO94392B1 (ro) | 1986-06-28 | 1986-06-28 | Procedeu de obtinere a dioxidului de staniu cristalizat, de puritate avansata |
Country Status (1)
| Country | Link |
|---|---|
| RO (1) | RO94392B1 (ro) |
-
1986
- 1986-06-28 RO RO123919A patent/RO94392B1/ro unknown
Also Published As
| Publication number | Publication date |
|---|---|
| RO94392A2 (ro) | 1988-04-30 |
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