Anti-caking fertilizer compositions

Patent metadata

Field	Value
Publication number	US-11999662-B2
Application number	US-202117479183-A
Country	US
Kind code	B2
Filing date	Sep 20, 2021
Priority date	May 17, 2017
Publication date	Jun 4, 2024
Grant date	Jun 4, 2024

Abstract

A particulate fertilizer coating composition or a coated fertilizer containing a solid acidic particulate material and a solid basic particulate material. The coating composition and coated fertilizer are each stable, chemical compatible with other fertilizers, and/or are abrasion resistant.

First claim

The invention claimed is:

1. A fertilizer composition comprising a urea and/or phosphate containing fertilizer particle having at least a portion of its surface coated with a bacteria and with a nutrient, wherein the nutrient comprises at least one of an amino acid, a nitrogen source, a phosphorous source, or a sulfur source.

2. The fertilizer composition of claim 1 , wherein the bacteria and the nutrient are comprised in two different layers.

3. The fertilizer composition of claim 2 , wherein the fertilizer particle has at least a portion of its surface coated with a micronutrient.

4. The fertilizer composition of claim 3 , wherein the micronutrient is comprised at least in part in a layer different than the layer comprising the bacteria and the layer comprising the nutrient.

5. The fertilizer composition of claim 4 , wherein a first coating layer comprises the bacteria, a second coating layer comprises the nutrient, and a third coating layer comprises the micronutrient.

6. The fertilizer composition of claim 2 , wherein at least a portion of the bacteria is comprised in a layer between the fertilizer particle and a layer comprising the nutrient.

7. The fertilizer composition of claim 1 , wherein the fertilizer particle has at least a portion of its surface coated with a micronutrient.

8. The fertilizer composition of claim 7 , wherein the micronutrient comprises a metal oxide.

9. The fertilizer composition of claim 8 , wherein the metal oxide is MgO, ZnO, CuO, or blends thereof.

10. The fertilizer composition of claim 8 , wherein the micronutrient comprises MgO.

11. The fertilizer composition of claim 7 , wherein the micronutrient is comprised in a solid particulate material.

12. The fertilizer composition of claim 7 , wherein at least two of the bacteria, the nutrient, and the micronutrient are comprised in a single layer.

13. The fertilizer composition of claim 1 , wherein the nutrient comprises at least two of an amino acid, a nitrogen source, a phosphorous source, or a sulfur source.

14. The fertilizer composition of claim 1 , wherein the bacteria and/or nutrient is comprised in a particulate material.

15. The fertilizer composition of claim 1 , wherein the fertilizer particle comprises urea.

16. The fertilizer composition of claim 1 , wherein the fertilizer particle comprises a phosphate.

17. The fertilizer composition of claim 1 , wherein the bacteria and the nutrient are comprised in a single layer.

18. The fertilizer composition of claim 1 , wherein the composition is a blended fertilizer composition comprising a plurality of the coated fertilizer particles and a plurality of uncoated fertilizer particles.

19. A method of producing the fertilizer composition of claim 1 , the method comprising:
coating a urea and/or phosphate containing fertilizer particle with a bacteria and a nutrient comprising at least one of an amino acid, a nitrogen source, a phosphorous source, or a sulfur source,
wherein the urea and/or phosphate containing fertilizer particle is a solid particle.

20. A method of fertilizing, the method comprising applying the fertilizer composition of claim 1 to at least one of a soil, a crop, a liquid carrier, a liquid solvent, or a combination thereof.

Assignees

• Sabic Global Technologies Bv
• Sabic Agri Nutrients Company

Inventors

• Sharma Yogesh Omprakash
• Bag Nilkamal
• Rao Boddu Srinivasa
• Gupta Samik
• Kiiski Harri Tapio
• Saif Sahali-Al

Classifications

• C05B1/02 Primary

  Superphosphates · CPC title

• C05B1/04

  Double-superphosphate; Triple-superphosphate; Other fertilisers based essentially on monocalcium phosphate · CPC title

• C05C9/005

  Post-treatment · CPC title

• C05D5/00

  Fertilisers containing magnesium (C05D7/00 takes precedence) · CPC title

• C05D9/00

  Other inorganic fertilisers · CPC title