RO92111B1 - Procedeu de separare si purificare a azotului de strontiu din rocile fosfatice - Google Patents
Procedeu de separare si purificare a azotului de strontiu din rocile fosfaticeInfo
- Publication number
- RO92111B1 RO92111B1 RO119662A RO11966285A RO92111B1 RO 92111 B1 RO92111 B1 RO 92111B1 RO 119662 A RO119662 A RO 119662A RO 11966285 A RO11966285 A RO 11966285A RO 92111 B1 RO92111 B1 RO 92111B1
- Authority
- RO
- Romania
- Prior art keywords
- strontium nitrate
- separating
- purifying
- nitrophosphate
- technologies
- Prior art date
Links
- DHEQXMRUPNDRPG-UHFFFAOYSA-N strontium nitrate Chemical compound [Sr+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O DHEQXMRUPNDRPG-UHFFFAOYSA-N 0.000 title abstract 10
- 238000000034 method Methods 0.000 title abstract 5
- 239000011435 rock Substances 0.000 title 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 abstract 2
- 238000005516 engineering process Methods 0.000 abstract 2
- 229910017604 nitric acid Inorganic materials 0.000 abstract 2
- 239000013078 crystal Substances 0.000 abstract 1
- 238000007872 degassing Methods 0.000 abstract 1
- 238000001704 evaporation Methods 0.000 abstract 1
- 230000008020 evaporation Effects 0.000 abstract 1
- 239000003337 fertilizer Substances 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 239000002367 phosphate rock Substances 0.000 abstract 1
- 238000001953 recrystallisation Methods 0.000 abstract 1
- 239000013049 sediment Substances 0.000 abstract 1
- 239000002002 slurry Substances 0.000 abstract 1
Landscapes
- Fertilizers (AREA)
Abstract
Inventia se refera la un procedeu de separare si purificare a azotatului de strontiu din rocile fosfatice prin prelucrarea sedimentului de la faza de decantare steril, a tehnologiilor de obtinere a nitrofosfatilor. Procedeul, conform inventiei, foloseste recristalizarea în acid azotic 58% a suspensiei de azotat de strontiu, prin evaporarea solutiilor apoase de azotat de strontiu, la presiune scazuta si degazarea la 250 grade C cu aer a acidului azotic rezidual din cristale de azotat de strontiuastfel purificat. Procedeul, conform inventiei, poate fi grefat pe tehnologiile de fabricare a îngrasamintelor chimice complexe nitrofosfatice fara a perturba procesul tehnologic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RO119662A RO92111B1 (ro) | 1985-07-25 | 1985-07-25 | Procedeu de separare si purificare a azotului de strontiu din rocile fosfatice |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RO119662A RO92111B1 (ro) | 1985-07-25 | 1985-07-25 | Procedeu de separare si purificare a azotului de strontiu din rocile fosfatice |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| RO92111A2 RO92111A2 (ro) | 1987-07-30 |
| RO92111B1 true RO92111B1 (ro) | 1987-07-31 |
Family
ID=20117707
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RO119662A RO92111B1 (ro) | 1985-07-25 | 1985-07-25 | Procedeu de separare si purificare a azotului de strontiu din rocile fosfatice |
Country Status (1)
| Country | Link |
|---|---|
| RO (1) | RO92111B1 (ro) |
-
1985
- 1985-07-25 RO RO119662A patent/RO92111B1/ro unknown
Also Published As
| Publication number | Publication date |
|---|---|
| RO92111A2 (ro) | 1987-07-30 |
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