NO131721B - - Google Patents
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- Publication number
- NO131721B NO131721B NO4471A NO4471A NO131721B NO 131721 B NO131721 B NO 131721B NO 4471 A NO4471 A NO 4471A NO 4471 A NO4471 A NO 4471A NO 131721 B NO131721 B NO 131721B
- Authority
- NO
- Norway
- Prior art keywords
- calcium nitrate
- solution
- phosphonitrate
- temperature
- crystallization
- Prior art date
Links
- ZCCIPPOKBCJFDN-UHFFFAOYSA-N calcium nitrate Chemical compound [Ca+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O ZCCIPPOKBCJFDN-UHFFFAOYSA-N 0.000 claims description 115
- CBMSICGVCDVFQL-UHFFFAOYSA-N phosphonitrate Chemical compound [O-][N+](=O)OP(=O)=O CBMSICGVCDVFQL-UHFFFAOYSA-N 0.000 claims description 64
- 239000013078 crystal Substances 0.000 claims description 58
- 238000002425 crystallisation Methods 0.000 claims description 53
- 230000008025 crystallization Effects 0.000 claims description 53
- 238000001816 cooling Methods 0.000 claims description 42
- 238000000926 separation method Methods 0.000 claims description 21
- 239000012452 mother liquor Substances 0.000 claims description 17
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 14
- 239000000203 mixture Substances 0.000 claims description 14
- 229910017604 nitric acid Inorganic materials 0.000 claims description 14
- 239000007788 liquid Substances 0.000 claims description 13
- 239000007787 solid Substances 0.000 claims description 12
- 229910052585 phosphate mineral Inorganic materials 0.000 claims description 8
- 239000000725 suspension Substances 0.000 claims description 7
- 230000015572 biosynthetic process Effects 0.000 claims description 5
- 238000007865 diluting Methods 0.000 claims description 2
- 239000000243 solution Substances 0.000 description 91
- 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 19
- 238000005406 washing Methods 0.000 description 15
- 239000002253 acid Substances 0.000 description 10
- 239000011575 calcium Substances 0.000 description 8
- 230000029087 digestion Effects 0.000 description 8
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 7
- 229910052791 calcium Inorganic materials 0.000 description 7
- 238000003756 stirring Methods 0.000 description 6
- 238000005119 centrifugation Methods 0.000 description 5
- 238000001914 filtration Methods 0.000 description 4
- 239000000706 filtrate Substances 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 238000004064 recycling Methods 0.000 description 3
- 230000002378 acidificating effect Effects 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 238000010790 dilution Methods 0.000 description 2
- 239000012895 dilution Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 239000003929 acidic solution Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000010899 nucleation Methods 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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 (2)
| Publication Number | Publication Date |
|---|---|
| NO131721B true NO131721B (enExample) | 1975-04-07 |
| NO131721C NO131721C (enExample) | 1975-07-16 |
Family
ID=20087440
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO4471A NO131721C (enExample) | 1970-01-07 | 1971-01-07 |
Country Status (4)
| Country | Link |
|---|---|
| DE (1) | DE2100553A1 (enExample) |
| FR (1) | FR2075960B1 (enExample) |
| GB (1) | GB1341567A (enExample) |
| NO (1) | NO131721C (enExample) |
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 NO NO4471A patent/NO131721C/no unknown
- 1971-01-07 DE DE19712100553 patent/DE2100553A1/de active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| NO131721C (enExample) | 1975-07-16 |
| FR2075960B1 (enExample) | 1973-12-28 |
| FR2075960A1 (enExample) | 1971-10-15 |
| DE2100553A1 (de) | 1971-09-23 |
| GB1341567A (enExample) | 1973-12-25 |
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