GB1092184A - Method of producing calcium carbonate from calcium nitrate - Google Patents
Method of producing calcium carbonate from calcium nitrateInfo
- Publication number
- GB1092184A GB1092184A GB1674865A GB1674865A GB1092184A GB 1092184 A GB1092184 A GB 1092184A GB 1674865 A GB1674865 A GB 1674865A GB 1674865 A GB1674865 A GB 1674865A GB 1092184 A GB1092184 A GB 1092184A
- Authority
- GB
- United Kingdom
- Prior art keywords
- soln
- nh4no3
- caco3
- produced
- calcium
- 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.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01C—AMMONIA; CYANOGEN; COMPOUNDS THEREOF
- C01C1/00—Ammonia; Compounds thereof
- C01C1/18—Nitrates of ammonium
- C01C1/185—Preparation
-
- 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
- C01F11/18—Carbonates
-
- 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)
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Abstract
CaCO3 is produced by dissolving industrial Ca(NO3)2 in 20-65% aq. NH4NO3 soln. adjusting the pH to 5.8-7.2 with NH3, filtering the soln., and precipitating CaCO3 by the addition of NH3 and CO2 in a CaCO3: NH3: CO2 molar ratio of 1:2-2.2:1-1.3 respectively, at 30-70 DEG C. and separating, washing and drying the CaCO3. 0.5-0.8 parts of NH4NO3 soln. may be used per part of Ca(NO3)2 which may be obtained from the nitration of phosphate rock. The Ca(NO3)2 and NH4NO3 containing soln. may be filtered through pressure filters, e.g. candle filter, at 1-6 atm. The filtrate may be injected into the middle or lower half of a tall vessel, with a pointed bottom through which are passed the gases, e.g. NH3 and CO2 alone or with inert gases, e.g. lime kiln gas. The NH4NO3 produced may be recovered by evaporating the soln. to dryness, or it may be recycled without separation.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEC33002A DE1194830B (en) | 1964-05-29 | 1964-05-29 | Process for the production of chemically pure calcium carbonate from calcium nitrate |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1092184A true GB1092184A (en) | 1967-11-22 |
Family
ID=7020602
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1674865A Expired GB1092184A (en) | 1964-05-29 | 1965-04-21 | Method of producing calcium carbonate from calcium nitrate |
Country Status (4)
Country | Link |
---|---|
BE (1) | BE664365A (en) |
DE (1) | DE1194830B (en) |
GB (1) | GB1092184A (en) |
NL (2) | NL6506620A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4756897A (en) * | 1986-06-23 | 1988-07-12 | Kerr-Mcgee Corporation | Process for preparing concentrated byproduct nitrate solutions |
EP3670482A1 (en) * | 2018-12-21 | 2020-06-24 | Solvay Sa | Process for the production of a lime fertilizer |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2813358C2 (en) * | 1978-03-28 | 1984-05-10 | Uhde Gmbh, 4600 Dortmund | Process for processing a magnesium-containing rock phosphate into phosphoric acid and a magnesium carbonate-calcium carbonate mixture |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1011861B (en) * | 1956-01-20 | 1957-07-11 | Basf Ag | Process for the production of ammonium nitrate and calcium carbonate |
-
0
- NL NL133601D patent/NL133601C/xx active
-
1964
- 1964-05-29 DE DEC33002A patent/DE1194830B/en active Pending
-
1965
- 1965-04-21 GB GB1674865A patent/GB1092184A/en not_active Expired
- 1965-05-24 BE BE664365D patent/BE664365A/xx unknown
- 1965-05-25 NL NL6506620A patent/NL6506620A/xx unknown
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4756897A (en) * | 1986-06-23 | 1988-07-12 | Kerr-Mcgee Corporation | Process for preparing concentrated byproduct nitrate solutions |
EP3670482A1 (en) * | 2018-12-21 | 2020-06-24 | Solvay Sa | Process for the production of a lime fertilizer |
EP3670483A1 (en) * | 2018-12-21 | 2020-06-24 | Solvay SA | Process for the production of a lime fertilizer |
Also Published As
Publication number | Publication date |
---|---|
DE1194830B (en) | 1965-06-16 |
NL133601C (en) | |
NL6506620A (en) | 1965-11-30 |
BE664365A (en) | 1965-09-16 |
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