GB1092184A - Method of producing calcium carbonate from calcium nitrate - Google Patents

Method of producing calcium carbonate from calcium nitrate

Info

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
Application number
GB1674865A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chemische Fabrik Kalk GmbH
Original Assignee
Chemische Fabrik Kalk GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Chemische Fabrik Kalk GmbH filed Critical Chemische Fabrik Kalk GmbH
Publication of GB1092184A publication Critical patent/GB1092184A/en
Expired legal-status Critical Current

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.
GB1674865A 1964-05-29 1965-04-21 Method of producing calcium carbonate from calcium nitrate Expired GB1092184A (en)

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)

* Cited by examiner, † Cited by third party
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
EP3670483A1 (en) * 2018-12-21 2020-06-24 Solvay SA Process for the production of a lime fertilizer

Families Citing this family (1)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Cited By (3)

* Cited by examiner, † Cited by third party
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
EP3670483A1 (en) * 2018-12-21 2020-06-24 Solvay SA Process for the production of a lime fertilizer
EP3670482A1 (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
BE664365A (en) 1965-09-16
NL133601C (en)
NL6506620A (en) 1965-11-30

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