RO86768B1 - Procedeu de obtinere a azotatului de amoniu tehnic poros - Google Patents
Procedeu de obtinere a azotatului de amoniu tehnic porosInfo
- Publication number
- RO86768B1 RO86768B1 RO111465A RO11146583A RO86768B1 RO 86768 B1 RO86768 B1 RO 86768B1 RO 111465 A RO111465 A RO 111465A RO 11146583 A RO11146583 A RO 11146583A RO 86768 B1 RO86768 B1 RO 86768B1
- Authority
- RO
- Romania
- Prior art keywords
- temperature
- humidity
- granules
- obtaining porous
- ammonium nitrate
- Prior art date
Links
Landscapes
- Inorganic Compounds Of Heavy Metals (AREA)
Abstract
Inventia se refera la un procedeu de obtinere a azotatului de amoniu tehnic, poros, care consta în aceea ca o solutie de azotat de amoniu avînd concentratia de 96% si continînd ca adaos 0,1...0,5% MgO si 0,1...0,3% Al2(SO4)3 se supune granularii într-un turn de granulare în contracurent cu aer conditionat, la temperatura de 148...150 degree C, granulele rezultate, avînd o temperatura de 80 degree C si umiditatea de 3,5%, fiind supuse unei preuscari, dupa care granulele preuscate, avînd temperatura de 60 degree C si umiditatea de 2,0...2,5% sunt supuse uscarii într-un uscator rotativ si apoi granulele uscate, avînd temperatura de 48 degree C si umiditatea de 0,5...0,6% sunt supuse conditionarii prin reducerea temperaturii la 32 degree C si a umiditatii pîna la maximum 0,2% si schimbarea temperaturii de tranzitie a formei cristaline rombice de la 32 degree C la cea rombica-bipiramidala, cu schimbarea volumului specific, la 55...60 degree C.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RO111465A RO86768B1 (ro) | 1983-06-30 | 1983-06-30 | Procedeu de obtinere a azotatului de amoniu tehnic poros |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RO111465A RO86768B1 (ro) | 1983-06-30 | 1983-06-30 | Procedeu de obtinere a azotatului de amoniu tehnic poros |
Publications (2)
Publication Number | Publication Date |
---|---|
RO86768A2 RO86768A2 (ro) | 1985-04-17 |
RO86768B1 true RO86768B1 (ro) | 1985-05-01 |
Family
ID=20113312
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
RO111465A RO86768B1 (ro) | 1983-06-30 | 1983-06-30 | Procedeu de obtinere a azotatului de amoniu tehnic poros |
Country Status (1)
Country | Link |
---|---|
RO (1) | RO86768B1 (ro) |
-
1983
- 1983-06-30 RO RO111465A patent/RO86768B1/ro unknown
Also Published As
Publication number | Publication date |
---|---|
RO86768A2 (ro) | 1985-04-17 |
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