• Production of defluorinated dicalcium phosphate from phosphate ...

    A new process to produce defluorinated dicalcium phosphate (DCP) using phosphate rock concentrate has been developed. This new process has as main...

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  • US3294486A Manufacture of dicalcium phosphate, dihydrate ...

    United States Patent Gtice 3,294,436 MANUFACTURE F DllCALClUM ... of dicalcium phosphate dihydrate from a calcium compound, phosphoric acid and/ or a ... Especially in the preparation of very white dicalcium phosphate dihydrate...

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  • EP1115654B1 Herstellung von dicalciumphosphat oder ... Google

    Patent Citations (4) ... US2636806A 1953 04 28 Acidulation of phosphate rock ... 2003 08 28 Production of dicalcium phosphate or monocalcium phosphate.

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  • Patents on Phosphate processing bone and rock phosphate ...

    But acid treatment of rock phosphate releases hydrogen fluoride and silicon fluoride. ... Some patents issued after the turn of the century mentioned detrimental ..... "Good dicalcium phosphate of commercial grade preferably contains fluorine...

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  • ChEmiCAl TEChNOlOGy Trade Science Inc

    crude phosphoric acid. The second step includes the precipitation of food grade dicalcium phosphate using calcium salt (calcium oxide, calcium hydroxide or cal...

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  • US8501235B2 Use of dicalcium phosphate anhydride powder ...

    Dicalcium phosphate anhydride powder of which at least 50% by weight is of a grain size ... This application is a continuation of U.S. patent application Ser. ... produced by the neutralisation of phosphoric acid with a basic calcium compound,...

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  • US2043238A Manufacture of di calcium phosphate Google Patents

    This invention relates to, the process of manufacture of. di metal phosphates, particularly dicalcium phosphate from calcium carbonate and phosphoric acid.

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  • Dicalcium Phosphates Process, Technology, Applications, Patent ...

    Dicalcium phosphate, also known as calcium monohydrogen phosphate, is a ... which rock phosphate is reacted with sulphuric acid to produce phosphoric acid.

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  • US Patent for Production of dicalcium phosphate or monocalcium ...

    Aug 25, 1999 ... Also, a method of producing monocalcium phosphate from calcium ... be reacted with the phosphoric acid to produce dicalcium phosphate.

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  • Processes for the manufacture of feed grade dicalcium phosphate ...

    Oct 26, 1976 ... The process comprises the reaction of an excess of phosphate rock with aqueo. ... United States Patent 3988420 ... A combined process for the manufacture of feed grade DCP and pure phosphoric acid from phosphate rock...

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