LIQUID COMPOSITIONS CONTAINING UREASE INHIBITORS AND ARYL ALKYL ALCOHOLS AND METHODS OF MAKING AND USE THEREOF

• US 20150197460A1
• Filed: 03/23/2015
• Published: 07/16/2015
• Est. Priority Date: 08/15/2012
• Status: Abandoned Application

• Current Assignee: KOCH Agronomic Services LLC (KOCH Industries Incorporated)
• Original Assignee: KOCH Agronomic Services LLC (KOCH Industries Incorporated)
• Inventors: Gabrielson, Kurt D., Wertz, Stacey L., Beatty, Richard P., Bobeck, Drew R.
• Application Number:
  US14/665,871
• Publication Number:
  US 20150197460A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: C05C 9/00 Fertilisers containing urea or urea compounds
• CPC Class Codes: C05C 9/02 containing urea-formaldehyde condensates
• CPC Class Codes: C05G 3/00 Mixtures of one or more fertilisers with additives not having a specially fertilising activity
• CPC Class Codes: C05G 3/90 for affecting the nitrification of ammonium compounds or urea in the soil
• CPC Class Codes: C09K 15/06 containing oxygen
• CPC Class Codes: C09K 15/26 containing nitrogen and sulfur
• CPC Class Codes: Y02P 60/21 Dinitrogen oxide [N2O], e.g. using aquaponics, hydroponics or efficiency measures

Abstract

The present invention provides improved solvent systems for the preparation of liquid formulations of urease inhibitors, specifically NEWT, comprising aryl alkyl alcohols. The solvent systems provided good solubility of the urease inhibitor as well as at least one of improved stability, lower flammability, lower toxicity, improved cold temperature storage, improved handling, improved adsorption onto and/or solubility with solid media such as urea. Methods of making and using the compositions are also provided.

Claims

1. A solid urea-based fertilizer composition comprising:

a. urea;

b. from about 0.02 wt. % to about 0.12 wt. % NBPT based on the total weight of the fertilizer composition; and

c. from about 0.03 wt. % to about 0.35 wt. % aryl alkyl alcohol based on the total weight of the fertilizer composition, wherein said aryl alkyl alcohol has the general formula (II)

3. The urea-based fertilizer composition of claim 1 or claim 2, wherein the aryl alkyl alcohol is benzyl alcohol.

5. The urea-based fertilizer composition of claim 1 or claim 2, further comprising a dye.

6. The urea-based fertilizer composition of claim 1, wherein the NBPT is present from about 0.05 wt. % to about 0.1 wt. % based on the total weight of the fertilizer composition, and the aryl alkyl alcohol is present from about 0.07 wt. % to about 0.3 wt. % based on the total weight percent of the fertilizer composition.

8. The urea-based fertilizer composition of claim 6 or claim 7, further comprising a dye.

2. A solid urea-based fertilizer composition comprising:

a. urea;

b. from about 0.02 wt. % to about 0.12 wt. % NBPT based on the total weight of the fertilizer composition;

c. from about 0.03 wt. % to about 0.35 wt. % aryl alkyl alcohol based on the total weight of the fertilizer composition, wherein said aryl alkyl alcohol has the general formula (II)

4. The urea-based fertilizer composition of claim 2, wherein the glycol is propylene glycol.

7. The urea-based fertilizer composition of claim 2, wherein the NBPT is present from about 0.05 wt. % to about 0.1 wt. % based on the total weight of the fertilizer composition;

the aryl alkyl alcohol is present from about 0.07 wt. % to about 0.3 wt. % based on the total weight percent of the fertilizer composition; and

the glycol is present from about 0.01 wt. % to about 0.2 wt. % based on the total weight percent of the fertilizer composition.

9. A solid urea-based fertilizer granule composition comprising:

a. a urea fertilizer granule; and

b. an additive composition substantially coated on the surface of said fertilizer granule, wherein said additive composition comprises;

i. from about 0.02 wt. % to about 0.12 wt. % NBPT based on the total weight of the fertilizer composition; and

ii. from about 0.03 wt. % to about 0.35 wt. % aryl alkyl alcohol based on the total weight of the fertilizer composition, wherein said aryl alkyl alcohol has the general formula (II)

10. The solid urea-based fertilizer granule composition of claim 9 wherein the additive composition further comprises from about 0.005 wt. % to about 0.25 wt. % glycol based on the total weight of the fertilizer composition.

11. The Solid urea-based fertilizer granule composition of claim 9 or claim 10, wherein the aryl alcohol is benzyl alcohol.

12. The solid urea-based fertilizer granule composition of claim 10, wherein the glycol is propylene glycol.

13. The solid urea-based fertilizer granule composition of claim 9 wherein the additive composition comprises NBPT present from about 0.05 wt. % to about 0.1 wt. % based on the total weight of the fertilizer composition, and aryl alkyl alcohol present from about 0.07 wt. % to about 0.3 wt. % based on the total weight percent of the fertilizer composition.

14. The solid urea-based fertilizer granule composition of claim 10, wherein the additive composition comprises NBPT present from about 0,05 wt. % to about 0.1 wt. % based on the total weight of the fertilizer composition;

aryl alkyl alcohol present from about 0.07 wt. % to about 0.3 wt. % based on the total weight percent of the fertilizer composition; and

glycol present from about 0.01 wt. % to about 0.2 wt. % based on the total weight percent of the fertilizer composition.

15. The solid urea-based fertilizer granule composition of claim 9 or claim 10, wherein a portion of the additive composition penetrates into the surface of said fertilizer granule.

16. The solid urea-based fertilizer granule composition of claim 9 or claim 10, wherein the additive composition further comprises a dye.