IP Library Granted Patent US 11,136,275
Granted Patent B2
US 11,136,275 · App. 16/387,131 · Granted Oct 5, 2021

Process for making a composite granule with rock phosphate, sulfur, and humic acid

Inventor: Kevin Merritt (St. Augustine, FL)
C05F11/02C05B17/00C05B19/00C05D9/00C05F11/08C05G5/12
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Quick Facts
Patent No.
US 11,136,275
App. No.
16/387,131
Granted
Oct 5, 2021
Kind
B2
Abstract

A potassium humate, rock phosphorous, sulfur granule: a fully soluble potassium humate component comprising about 3% of the composite granule; a sulfur component comprising about 15% of the composite granule; and a rock phosphate powder component comprising about 82% of the composite granule. The composite granule is semi-soluble and has a pH of 2.5 to about 12.

Claims (35)

1. A process for making a potassium humate, rock phosphate, sulfur composite granule, the process comprising:

obtaining a sample of a carbonaceous substance comprising humic acid and one or more other substances;

contacting the sample with an amount of an alkaline mixture, thereby forming an extraction mixture, the extraction mixture consisting essentially of a sludge component, the sludge component comprising, predominantly, the sample, and an extraction component, the extraction component comprising, predominantly, the alkaline mixture;

maintaining the sludge component in contact with the extraction component for a period of time sufficient for the extraction component to become relatively enriched in humic acid and the sludge component to become relatively depleted of humic acid;

separating the sludge component from the extraction component;

spray drying the extraction component, thereby forming a plurality of potassium humate powder particles, wherein the plurality of potassium humate powder particles is characterized by a moisture content between about 9% and about 15%;

obtaining a sulfur powder;

combining a rock phosphorous powder, the sulfur powder, and the plurality of potassium humate powder particles, thereby forming a homogenized mixture; and

compacting at least a portion of the homogenized mixture under conditions wherein the at least a portion of the homogenized mixture, as a result of the compacting, are made into a form of a granule;

thereby making a composite granule comprising potassium humate, rock phosphate, and sulfur.

2. The process of claim 1 , wherein the sulfur powder is an elemental sulfur.

3. The process of claim 1 , wherein the sulfur powder is a sulfate.

4. The process of claim 1 , wherein the sulfur powder is about 0.05% to about 50% of the homogenized mixture.

5. The process of claim 1 , wherein the composite granule has a pH of at least 2.5.

6. The process of claim 5 , wherein the composite granule has a pH of 2.5 to about 12.

7. The process of claim 6 , wherein the composite granule has a pH of about 7.

8. The process of claim 1 , wherein the homogenized mixture further includes combining a dormant microbial community composition.

9. The process of claim 1 , wherein the homogenized mixture further includes combining zinc sulfate.

10. A process for making a potassium humate, rock phosphate, sulfur composite granule, the process comprising:

obtaining a sample of a carbonaceous substance comprising humic acid and one or more other substances;

contacting the sample with an amount of an alkaline mixture, thereby forming an extraction mixture, the extraction mixture consisting essentially of a sludge component, the sludge component comprising, predominantly, the sample, and an extraction component, the extraction component comprising, predominantly, the alkaline mixture;

maintaining the sludge component in contact with the extraction component for a period of time sufficient for the extraction component to become relatively enriched in humic acid and the sludge component to become relatively depleted of humic acid;

separating the sludge component from the extraction component;

spray drying the extraction component, thereby forming a plurality of powder potassium humate particles, wherein the plurality of potassium humate powder particles is characterized by a moisture content between about 9% and about 15%;

obtaining a sulfur powder;

combining a rock phosphorous powder, the sulfur powder, and the plurality of potassium humate powder particles, thereby forming a homogenized mixture,

wherein the sulfur powder comprises about 1% to about 50% of the homogenized mixture; and

compacting at least a portion of the homogenized mixture under conditions wherein the at least a portion of the homogenized mixture, as a result of the compacting, are made into a form of a granule;

thereby making a composite granule comprising potassium humate, rock phosphate, and sulfur, wherein the composite granule has a pH of 2.5 to about 12.

11. The process of claim 10 , wherein the plurality of potassium humate powder particles comprises about 3% of the homogenized mixture, wherein the rock phosphorous powder comprises about 82% of the homogenized mixture, and wherein the sulfur powder comprises about 15% of the homogenized mixture.

12. The process of claim 10 , wherein the sulfur powder is an elemental sulfur.

13. The process of claim 10 , wherein the sulfur powder is a sulfate.

14. The process of claim 10 , wherein the composite granule has a pH of about 7.

15. The process of claim 10 , wherein the homogenized mixture further includes combining a dormant microbial community composition.

16. The process of claim 10 , wherein the homogenized mixture further includes combining zinc sulfate.

Assignments (7)
RELEASE OF SECURITY INTEREST Recorded Nov 10, 2025
From: EAST WEST BANK
To: HUMIC GROWTH SOLUTIONS, LLC
Reel/Frame 072839/0321 →
SECURITY INTEREST Recorded Oct 21, 2025
From: HUMIC GROWTH SOLUTIONS, LLC; NUTRIAG LTD.
To: BAIN CAPITAL CREDIT, LP, AS THE ADMINISTRATIVE AGENT
Reel/Frame 072614/0708 →
GRANT OF SECURITY INTEREST IN PATENTS AND TRADEMARKS Recorded Dec 5, 2024
From: HUMIC GROWTH SOLUTIONS, LLC
To: EAST WEST BANK, AS LENDER
Reel/Frame 069524/0331 →
TERMINATION OF PATENT SECURITY AGREEMENT Recorded Oct 17, 2023
From: WELLS FARGO BANK, NATIONAL ASSOCIATION
To: HUMIC GROWTH SOLUTIONS, LLC
Reel/Frame 065254/0232 →
SECURITY INTEREST Recorded Apr 26, 2023
From: HUMIC GROWTH SOLUTIONS, LLC
To: WELLS FARGO BANK, NATIONAL ASSOCIATION
Reel/Frame 063452/0126 →
CHANGE OF NAME Recorded Oct 3, 2022
From: HUMIC GROWTH SOLUTIONS, INC.
To: HUMIC GROWTH SOLUTIONS, LLC
Reel/Frame 061590/0692 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 26, 2022
From: MERRITT, KEVIN
To: HUMIC GROWTH SOLUTIONS, INC.
Reel/Frame 061214/0263 →
Continuity (5)
Continuation In Part 16210646 · Dec 5, 2018
Continuation In Part 15878773 · Jan 24, 2018
Continuation In Part 14738865 · Jun 13, 2015
Provisional Application 62013789 · Jun 18, 2014
Related Publication 20200270183A1 · Aug 27, 2020