Eggshell derived monocalcium and dicalcium phosphate
AssigneeBoard of Regents of the University of Nebraska
InventorsSheila E. Scheideler, Jodi A. Ash
Life of this patent
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Abstract
An eggshell-derived product is utilized as an alternative feed grade calcium and phosphorous source for potential use for all species of livestock. The product is environmentally advantageous and biologically equivalent or superior to currently available commercial products such as feed grade dicalcium phosphate. A method of producing the product elicits monocalcium phosphate and/or dicalcium phosphate from a combination of dried eggshell waste and phosphoric acid, using water as a catalyst.
Claims14
A feed source for livestock, comprising the mixture of:
- phosphoric acid;
- water;
- and
- eggshell, wherein said phosphoric acid, said water, and said eggshell react to form a product, said product dried to form said feed source, said feed source comprising monocalcium phosphate and dicalcium phosphate.
A method for producing a feed source for livestock using phosphoric acid, water, and eggshell, said method comprising:
- crushing said eggshell;
- mixing said phosphoric acid with said water to form a mixture, wherein said mixture is about 1 part phosphoric acid and about 2 parts water;
- adding said mixture to said crushed eggshell to form a foam;
- drying said foam;
- and
- grinding said foam into a powder, said powder comprising monocalcium phosphate and dicalcium phosphate.
Dependencies are inferred from the claim text.