Method of producing granulated anhydrous dicalcium phosphate

Details Method of producing granulated anhydrous dicalcium phosphate Method of producing granulated anhydrous dicalcium phosphate

2007-09-25

2007-09-25

Langel, Wayne A. (Department: 1754)

Chemistry of inorganic compounds

Phosphorus or compound thereof

Oxygen containing

C423S308000

Reexamination Certificate

active

11201048

ABSTRACT:
A new and useful method of simultaneously producing and granulating anhydrous dicalcium phosphate is provided. Such a method entails the reaction of concentrated phosphoric acid with a powdered material of lime and/or calcium carbonate in substantially equal stoichiometric amounts, with subsequent, mixing, drying, milling, and sieving to provide the correct target particle size range for the resultant granulated materials. Such specifically produced granulated anhydrous dicalcium phosphate materials exhibit very high available calcium levels, excellent flow characteristics, and very high capability for compression into tablets. Products including such particularly produced granulated anhydrous dicalcium phosphate materials are also encompassed within this invention.

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