FR2158055A1 - Dicalcium phosphate prodn - from calcium oxide hydroxide or carbonate and phosphoric acid,in an edible form - Google Patents

Dicalcium phosphate prodn - from calcium oxide hydroxide or carbonate and phosphoric acid,in an edible form

Info

Publication number
FR2158055A1
FR2158055A1 FR7238451A FR7238451A FR2158055A1 FR 2158055 A1 FR2158055 A1 FR 2158055A1 FR 7238451 A FR7238451 A FR 7238451A FR 7238451 A FR7238451 A FR 7238451A FR 2158055 A1 FR2158055 A1 FR 2158055A1
Authority
FR
France
Prior art keywords
phosphoric acid
prodn
carbonate
calcium oxide
dicalcium phosphate
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.)
Granted
Application number
FR7238451A
Other languages
French (fr)
Other versions
FR2158055B1 (en
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 FR2158055A1 publication Critical patent/FR2158055A1/en
Application granted granted Critical
Publication of FR2158055B1 publication Critical patent/FR2158055B1/fr
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B25/00—Phosphorus; Compounds thereof
    • C01B25/16—Oxyacids of phosphorus; Salts thereof
    • C01B25/26—Phosphates
    • C01B25/32—Phosphates of magnesium, calcium, strontium, or barium
    • C01B25/322—Preparation by neutralisation of orthophosphoric acid

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Fodder In General (AREA)
  • Cosmetics (AREA)
  • Paper (AREA)

Abstract

Title cmpd. is prepd. by adding dil. H3PO4 12-20wt. % P2O5) at 15-110 degrees C to CaO Ca(OH)2 or CaCO3 in quantities such that the molar ratio of CaO:P2O5 in the reaction mixt. is 1.1-1.9 pref. 1.5-1.8 sepg. the pptd. calcium phosphate and recycling the mother liquors for dilg. the phosphoric acid starting material.
FR7238451A 1971-10-28 1972-10-30 Dicalcium phosphate prodn - from calcium oxide hydroxide or carbonate and phosphoric acid,in an edible form Granted FR2158055A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19712153725 DE2153725C3 (en) 1971-10-28 1971-10-28 Process for the production of dicalcium phosphate

Publications (2)

Publication Number Publication Date
FR2158055A1 true FR2158055A1 (en) 1973-06-08
FR2158055B1 FR2158055B1 (en) 1977-01-14

Family

ID=5823628

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7238451A Granted FR2158055A1 (en) 1971-10-28 1972-10-30 Dicalcium phosphate prodn - from calcium oxide hydroxide or carbonate and phosphoric acid,in an edible form

Country Status (3)

Country Link
BE (1) BE790637A (en)
DE (1) DE2153725C3 (en)
FR (1) FR2158055A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020157268A1 (en) * 2019-02-01 2020-08-06 Omya International Ag Production of surface-reacted calcium salts by grinding induced conversion

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4122960C2 (en) * 1991-07-11 1994-03-31 Benckiser Knapsack Ladenburg Process for the preparation of coarse-grained dicalcium phosphate anhydride

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1091772A (en) * 1952-10-11 1955-04-14 Chemical Construction Corp Process for the production of dicalcium phosphate suitable for animal feed
US3467495A (en) * 1965-12-23 1969-09-16 Int Minerals & Chem Corp Preparation of calcium phosphates

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PH11241A (en) * 1969-10-24 1977-10-28 Monsanto Co Process for preparing anhydrous dicalcium phosphate and compositions therefrom

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1091772A (en) * 1952-10-11 1955-04-14 Chemical Construction Corp Process for the production of dicalcium phosphate suitable for animal feed
US3467495A (en) * 1965-12-23 1969-09-16 Int Minerals & Chem Corp Preparation of calcium phosphates

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020157268A1 (en) * 2019-02-01 2020-08-06 Omya International Ag Production of surface-reacted calcium salts by grinding induced conversion
EP3693339A1 (en) * 2019-02-01 2020-08-12 Omya International AG Production of surface-reacted calcium salts by grinding induced conversion

Also Published As

Publication number Publication date
BE790637A (en) 1973-02-15
DE2153725C3 (en) 1981-11-12
FR2158055B1 (en) 1977-01-14
DE2153725A1 (en) 1973-06-20
DE2153725B2 (en) 1978-01-26

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Legal Events

Date Code Title Description
ST Notification of lapse