NBPT solution for preparing urease inhibited urea fertilizers prepared from N-alkyl; N, N-alkyl; and N-alkyl-N-alkoxy amino alcohols
First Claim
Patent Images
1. A solution for use in reducing nitrogen volatilization comprising N-(n-butyl)-thiophosphoric triamide (NBPT) dissolved in one or more N-alkyl amino alcohols, N,N-dialkyl amino alcohols, N-alkyl-N-alkoxy amino alcohols, and mixtures thereof.
1 Assignment
0 Petitions
Accused Products
Abstract
Solutions are prepared by dissolving N-(n-butyl)-thiophosphoric triamide (NBPT) in one or more N-alkyl amino alcohols, N,N-dialkyl amino alcohols, N-alkyl-N-alkoxy amino alcohols, and mixtures thereof. The solutions may be used in urea fertilizers to reduce nitrogen volatilization, or to reduce the odor of animal waste. Methods of preparing urea fertilizers and the resultant products are also described.
-
Citations
43 Claims
- 1. A solution for use in reducing nitrogen volatilization comprising N-(n-butyl)-thiophosphoric triamide (NBPT) dissolved in one or more N-alkyl amino alcohols, N,N-dialkyl amino alcohols, N-alkyl-N-alkoxy amino alcohols, and mixtures thereof.
- 16. A method of reducing the nitrogen volatility of a urea fertilizer comprising combining said fertilizer with N-(n-butyl)-thiophosphoric triamide (NBPT) dissolved in one or more N-alkyl amino alcohols, N,N-dialkyl amino alcohols, N-alkyl-N-alkoxy amino alcohols, and mixtures thereof.
- 35. A urea fertilizer having reduced nitrogen volatility comprised of urea and a solution of N-(n-butyl)-thiophosphoric triamide (NBPT) dissolved in one or more of N-alkyl amino alcohols, N,N-dialkyl amino alcohols, N-alkyl-N-alkoxy amino alcohols, and mixtures thereof.
-
43. A method of reducing the odor of animal waste comprising treating said waste with a solution of N-(n-butyl)-thiophosphoric triamide (NBPT) dissolved in one or more N-alkyl amino alcohols, N,N-dialkyl amino alcohols, N-alkyl-N-alkoxy amino alcohols, and mixtures thereof.
Specification