Biotic Phosphate Fertilizers and Methods for Production

Abstract

Bioactive fertilizers with improved extended phosphorous availability comprise fractured animal manure waste blended with at least potassium, phosphorus and calcium, in a dried prill form, wherein the calcium is substantially bound up with phosphorus in a mineral complex and that comprises soluble organic carbon in a form that readily dissolves upon application to soil and that can bind soluble calcium in soil. Methods are also provided that fracture chicken waste with a kinetic mixer, the mixer comprising a motor operably connected to a vertical shaft within a column, the vertical shaft having a feedstock entry port at the top surface; generally flat blades extending radially from the shaft with at least one set of an even number of blades spaced apart radially at a defined distance along the vertical axis; and an exit at the shaft bottom to allow fractured feedstock to exit to a mixer; wherein the column comprises one or more walls surrounding the shaft with attached blades. After fracturing, the uncooked particles are added to coat rock phosphate, with addition of strong acid, followed by granulating, prilling and drying.

Claims

1. A bioactive fertilizer with improved extended phosphorous availability, comprising: fractured animal manure waste blended with at least potassium, phosphorus and calcium, in a dried prill form, wherein the calcium is substantially bound up with phosphorus in a mineral complex with a molar ratio in excess of 2:3 calcium to phosphorus in the complex, and further comprising between 1% to 5% dry wgt/total dry wgt water soluble organic carbon in a form that readily dissolves upon application to soil and that can bind soluble calcium in soil.

2. The bioactive fertilizer of claim 1, comprising at least 1% dry wgt percent by dry total weight colloidal clay.

3. The bioactive fertilizer of claim 2, comprising at least 2% dry wgt/total dry wgt water soluble organic carbon.

4. The bioactive fertilizer of claim 2, comprising at least 4% dry wgt/total dry wgt water soluble organic carbon.

5. The bioactive fertilizer of claim 2, wherein the clay is in particle form surrounding calcium-phosphate particles produced from rock phosphate.

6. The bioactive fertilizer of claim 4, comprising at least 2 percent by total weight colloidal clay.

7. The bioactive fertilizer of claim 1, comprising between 6 percent to 18 percent dry wgt/total dry wgt phosphate.

8. The bioactive fertilizer of claim 1, in a granular prill form of size sufficient for passage of 50% through a 100 mesh.

9. The bioactive fertilizer of claim 1, comprising at least 2% dry wgt/total dry wgt water soluble organic carbon, at least 2% by total weight colloidal clay, and comprising between 6 percent to 18 percent dry wgt/total dry wgt phosphate.

10. The bioactive fertilizer of claim 1, comprising at least 4% dry wgt/total dry wgt water soluble organic carbon, at least 4% by total weight colloidal clay, and comprising between 6 percent to 18 percent dry wgt/total dry wgt phosphate.

11. A bioactive fertilizer with improved extended phosphorous availability, comprising: fractured animal manure waste comprising organic carbon in acidic forms blended with at least potassium, phosphorus and calcium, in a dried prill form, and comprising at least 20% by wgt/total wgt rock phosphate wherein the phosphorus of the rock phosphate has not been stripped from the calcium but has formed a complex with organic carbon bound to mineral complexes of calcium and phosphorus, and comprising 1-5% by wgt/total weight soluble organic carbon, which can bind to soil calcium upon application as a fertilizer to a soil.

12. The bioactive fertilizer of claim 11, comprising no more than 1% by wgt/total weight soluble organic carbon, which can bind to soil calcium upon application as a fertilizer to a soil.

13. The bioactive fertilizer of claim 11, further comprising at least 2% by wgt/total weight colloidal clay particles.

14. The bioactive fertilizer of claim 11, comprising no more than 2% by wgt/total weight soluble organic carbon, which can bind to soil calcium upon application as a fertilizer to a soil.

15. A method for making homogeneous granular sized fertilizer from chicken waste feedstock, comprising: fracturing chicken waste by a kinetic mixer, the mixer comprising a motor operably connected to a vertical shaft within a column, the vertical shaft having a feedstock entry port at the top surface; generally flat blades extending radially from the shaft with at least one set of an even number of blades spaced apart radially at a defined distance along the vertical axis; and an exit at the shaft bottom to allow fractured feedstock to exit to a mixer; wherein the column comprises one or more walls surrounding the shaft with attached blades; adding and mixing at least a source of phosphorus and potassium and sulfuric acid to form an admixture of soil nutrients; granulating the admixture of soil nutrients with a pin mixer; heating and drying the prilled admixture to form a dried prill; removing large size components from the dried prill, milling into smaller components and feeding the milled components back into admixture after the pin mixer step.

16. The method of claim 15, wherein large size components are removed that are larger than inch.

17. The method of claim 15, further comprising treating an ammonium phosphate feedstock with at least sulfuric acid or phosphoric acid to form a melt product and adding the acid treated ammonium phosphate feedstock.

18. The method of claim 15, wherein the heating and drying step comprises heating the prilled admixture to about 175-190 degrees Fahrenheit for about 15 to 35 minutes.

19. The method of claim 15, wherein the admixture of soil nutrients comprises at least 2% soluble carbon by wgt/total weight.

20. The method of claim 19, wherein the admixture of soil nutrients further comprises at least 2% colloidal clay by wgt/total weight.

Description

EXAMPLE

[0084] Table one, presented below, summarizes a representative composition for a desirable fertilizer made according to an embodiment.

TABLE-US-00001 % s: Moisture Total N P P2O5 K K2O S B Dry 0 3.88 6.35 14.55 1.27 1.53 0.64 51.3 Matter Basis Undried 4.13 3.72 6.09 13.95 1.22 1.47 0.61 49.2 Basis Zn Mn Cu Fe Ca Mg Na Cl pH Dry 454 ppm 320 ppm 52.5 ppm 2872 ppm 13.35% .52% .31% .93% Matter Basis Undried 435 ppm 307 ppm 50.3 ppm 2753 ppm 12.80% .50% .30% .89% 5.4 Basis

Ionic Excess of Calcium Over Phosphorus in the Rock Phosphate

[0085] In a desirable embodiment, it was surprisingly found that rock phosphate having 0.205 moles of phosphorus for every 0.33 moles of calcium (ionic excess of calcium to phosphorus, assuming dianionic phosphorus complexes with oxygen) worked well. Preferably the calcium is in a ratio of at least 10% greater ionic excess to phosphate that is between 50% and 200% of this measured value. In an embodiment clay colloidal particles bind to calcium of rock phosphate particles based on the excess of calcium vs phosphate in the calcium-phosphate complexes.

[0086] Each citation to art is specifically incorporated by reference in their entirety.

[0087] Space limitations preclude further description of embodiments that readily will occur to a skilled artisan. For example one or more components such as those described as alternative embodiments and optional embodiments may be omitted and added. All such embodiments especially in combinations and possible permutations are intended within the ambit of the attached claims and future amended claims. The term about means the stated value plus and minus 10% of the stated value. The term total weight means the total prepared weight, including any moisture in the preparation or materials. Additional embodiments include embodiments, wherein total weight is replaced by total dry weight wherein moisture in the preparation or materials is not included in the determination.