DE2100553A1 - Verfahren zur Kristallisation von Kalziumnitrat aus den beim Aufschluß von Rohphosphaten mit Salpetersäure erhaltenen Lösungen - Google Patents
Verfahren zur Kristallisation von Kalziumnitrat aus den beim Aufschluß von Rohphosphaten mit Salpetersäure erhaltenen LösungenInfo
- Publication number
- DE2100553A1 DE2100553A1 DE19712100553 DE2100553A DE2100553A1 DE 2100553 A1 DE2100553 A1 DE 2100553A1 DE 19712100553 DE19712100553 DE 19712100553 DE 2100553 A DE2100553 A DE 2100553A DE 2100553 A1 DE2100553 A1 DE 2100553A1
- Authority
- DE
- Germany
- Prior art keywords
- solution
- crystallization
- calcium nitrate
- cooling
- temperature
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- ZCCIPPOKBCJFDN-UHFFFAOYSA-N calcium nitrate Chemical compound [Ca+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O ZCCIPPOKBCJFDN-UHFFFAOYSA-N 0.000 title claims description 88
- 238000002425 crystallisation Methods 0.000 title claims description 47
- 230000008025 crystallization Effects 0.000 title claims description 47
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 title claims description 14
- 238000000034 method Methods 0.000 title claims description 14
- 229910017604 nitric acid Inorganic materials 0.000 title claims description 14
- 229910019142 PO4 Inorganic materials 0.000 title description 4
- 235000021317 phosphate Nutrition 0.000 title description 4
- 150000003013 phosphoric acid derivatives Chemical class 0.000 title description 4
- 239000000243 solution Substances 0.000 claims description 96
- CBMSICGVCDVFQL-UHFFFAOYSA-N phosphonitrate Chemical compound [O-][N+](=O)OP(=O)=O CBMSICGVCDVFQL-UHFFFAOYSA-N 0.000 claims description 54
- 239000013078 crystal Substances 0.000 claims description 49
- 238000001816 cooling Methods 0.000 claims description 47
- 238000000926 separation method Methods 0.000 claims description 22
- 239000011575 calcium Substances 0.000 claims description 14
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 13
- 229910052791 calcium Inorganic materials 0.000 claims description 13
- 230000029087 digestion Effects 0.000 claims description 11
- 239000007788 liquid Substances 0.000 claims description 10
- 239000007787 solid Substances 0.000 claims description 8
- 239000000725 suspension Substances 0.000 claims description 8
- 239000012452 mother liquor Substances 0.000 claims description 6
- 230000015572 biosynthetic process Effects 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 239000010413 mother solution Substances 0.000 claims description 3
- 238000007865 diluting Methods 0.000 claims description 2
- 239000007790 solid phase Substances 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 1
- MMDJDBSEMBIJBB-UHFFFAOYSA-N [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] Chemical compound [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] MMDJDBSEMBIJBB-UHFFFAOYSA-N 0.000 description 16
- 239000002253 acid Substances 0.000 description 10
- 238000005406 washing Methods 0.000 description 10
- 239000000203 mixture Substances 0.000 description 8
- 239000002367 phosphate rock Substances 0.000 description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- 238000003756 stirring Methods 0.000 description 6
- 238000005119 centrifugation Methods 0.000 description 4
- 238000001914 filtration Methods 0.000 description 4
- 230000002378 acidificating effect Effects 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 239000011435 rock Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000000706 filtrate Substances 0.000 description 2
- 239000007791 liquid phase Substances 0.000 description 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 description 1
- 241001122767 Theaceae Species 0.000 description 1
- 230000002308 calcification Effects 0.000 description 1
- FNAQSUUGMSOBHW-UHFFFAOYSA-H calcium citrate Chemical compound [Ca+2].[Ca+2].[Ca+2].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O.[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O FNAQSUUGMSOBHW-UHFFFAOYSA-H 0.000 description 1
- 239000001354 calcium citrate Substances 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 150000002823 nitrates Chemical class 0.000 description 1
- 238000006396 nitration reaction Methods 0.000 description 1
- 239000000575 pesticide Substances 0.000 description 1
- XRBCRPZXSCBRTK-UHFFFAOYSA-N phosphonous acid Chemical compound OPO XRBCRPZXSCBRTK-UHFFFAOYSA-N 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000012047 saturated solution Substances 0.000 description 1
- 238000005201 scrubbing Methods 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 235000013337 tricalcium citrate Nutrition 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05B—PHOSPHATIC FERTILISERS
- C05B11/00—Fertilisers produced by wet-treating or leaching raw materials either with acids in such amounts and concentrations as to yield solutions followed by neutralisation, or with alkaline lyes
- C05B11/04—Fertilisers produced by wet-treating or leaching raw materials either with acids in such amounts and concentrations as to yield solutions followed by neutralisation, or with alkaline lyes using mineral acid
- C05B11/06—Fertilisers produced by wet-treating or leaching raw materials either with acids in such amounts and concentrations as to yield solutions followed by neutralisation, or with alkaline lyes using mineral acid using nitric acid (nitrophosphates)
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F11/00—Compounds of calcium, strontium, or barium
- C01F11/36—Nitrates
- C01F11/44—Concentrating; Crystallisating; Dehydrating; Preventing the absorption of moisture or caking
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Inorganic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RO6205970 | 1970-01-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE2100553A1 true DE2100553A1 (de) | 1971-09-23 |
Family
ID=20087440
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19712100553 Pending DE2100553A1 (de) | 1970-01-07 | 1971-01-07 | Verfahren zur Kristallisation von Kalziumnitrat aus den beim Aufschluß von Rohphosphaten mit Salpetersäure erhaltenen Lösungen |
Country Status (4)
| Country | Link |
|---|---|
| DE (1) | DE2100553A1 (https=) |
| FR (1) | FR2075960B1 (https=) |
| GB (1) | GB1341567A (https=) |
| NO (1) | NO131721C (https=) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2252280A (en) * | 1937-06-26 | 1941-08-12 | Walter H Duisberg | Decomposition of water-insoluble phosphates |
| DE875951C (de) * | 1941-09-25 | 1953-05-07 | Der Niederlaendische Staat | Verfahren zur Herstellung und getrennten Gewinnung von Mono- bzw. Dicalciumphosphat und Calciumnitrat aus Rohphosphat und Salpetersaeure |
-
1971
- 1971-01-04 GB GB35271A patent/GB1341567A/en not_active Expired
- 1971-01-06 FR FR7100173A patent/FR2075960B1/fr not_active Expired
- 1971-01-07 DE DE19712100553 patent/DE2100553A1/de active Pending
- 1971-01-07 NO NO4471A patent/NO131721C/no unknown
Also Published As
| Publication number | Publication date |
|---|---|
| FR2075960B1 (https=) | 1973-12-28 |
| NO131721C (https=) | 1975-07-16 |
| FR2075960A1 (https=) | 1971-10-15 |
| NO131721B (https=) | 1975-04-07 |
| GB1341567A (https=) | 1973-12-25 |
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