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US 2019/0194085 A1Published application
Nitrification inhibitors to improve fertilizer efficiency
OwnerGary David McKnight, Randall Linwood Rayborninventors
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Abstract
Disclosed are compositions and methods of making a liquid fertilizer additive of biodegradable polymeric and/or oligomeric nitrification inhibitors comprised of utilizing a non-aqueous polar, aprotic organo liquid (NAPAOL) as the reaction medium for the reaction of aldehyde(s) with cyano-containing nitrification inhibitors that have one or more aldehyde reactive groups selected from the group consisting of a) primary amines, b) secondary amines, c) amides, d) thiols, e) hydroxyls and f) phenols.
Claims20
1) A liquid fertilizer additive composition comprising a) a non-aqueous polar, aprotic organic liquid (NAPAOL) and b) a nitrification inhibitor composition wherein the NAPAOL comprises one or more members selected from the group consisting of:
- i) dimethyl sulfoxide,
- ii) dialkyl, diaryl, or alkylaryl sulfoxide(s) having the formula:
- R9S(O)xR10
- wherein R9 and R10 are each independently a C1-6 alkylene group, an aryl group, or C1-3alkylenearyl group or R9 and R10 together with the sulfur to which they are attached form a 4 to 8 membered ring wherein R9 and R10 together are a C16 alkylene group which optionally contains one or more atoms selected from the group consisting of O, S, Se, Te, N, and P in the ring and x is 1 or 2,
- iii) one or more alkylene carbonates selected from the group consisting of ethylene carbonate, propylene carbonate and butylene carbonate iv) 1-Methyl-2-pyrrolidone, v) one or more organo phosphorous liquids selected from the group consisting of hexamethylphosphoramide and one or more trialkylphosphates selected from the structure:
- wherein:
- R22 is an alkyl radical —C1H3 to —C6H13
- R23 is an alkyl radical —C1H3 to —C6H13
- R24 is an alkyl radical —C1H3 to —C6H13
- vi) 1,2-dimethyloxyethane, vii) 2-methoxyethyl ether, and viii) cyclohexylpyrrolidone,
- and wherein the nitrification composition comprises one or more members selected from the structures consisting of:
- wherein R43, R44, R45 and R46 are one or more members independently selected from the group consisting of:
- H and —CH2OH wherein at least one of R43, R44, R45 and R46 is —CH2OH,
- wherein R47, R48, R49 R50, R51 and R52 are one or more members independently selected from the group consisting of:
- H, and —CH2OH, and
- wherein R53, R54, R55 , R56, R57, R58, R59 and R60 are one or more members independently selected from the group consisting of:
- H and —CH2OH.
14 more elements
8) A fertilizer composition comprised of:
- a) one or more nitrogen sources selected from the group consisting of:
- i) urea, ii) urea formaldehyde reaction products, iii) ammonia, iv) urea formaldehyde and ammonia reaction products, v) ammonium nitrate, vi) ammonium sulfate, vii) manure viii) compost and ix) treated urea and
- b) A liquid fertilizer additive composition comprising i) a non-aqueous polar, aprotic organic liquid (NAPAOL) and ii) a nitrification inhibitor composition wherein NAPAOL comprises one or more members selected from the group consisting of:
- (1) dimethyl sulfoxide,
- (2) dialkyl, diaryl, or alkylaryl sulfoxide(s) having the formula:
- R9S(O)xR10
- wherein R9 and R10 are each independently a C1-6 alkylene group, an aryl group, or C1-3alkylenearyl group or R9 and R10 together with the sulfur to which they are attached form a 4 to 8 membered ring wherein R9 and R10 together are a C16 alkylene group which optionally contains one or more atoms selected from the group consisting of O, S, Se, Te, N, and P in the ring and x is 1 or 2,
- (3) one or more alkylene carbonates selected from the group consisting of ethylene carbonate, propylene carbonate and butylene carbonate (4) 1-Methyl-2-pyrrolidone, (5) one or more organo phosphorous liquids selected from the group consisting of hexamethylphosphoramide and one or more trialkylphosphates selected from the structure:
- wherein:
- R22 is an alkyl radical —C1H3 to —C6H13
- R23 is an alkyl radical —C1H3 to —C6H13
- R24 is an alkyl radical —C1H3 to —C6H13
- (6) 1,2-dimethyloxyethane, (7) 2-methoxyethyl ether, and (8) cyclohexylpyrrolidone,
- and wherein the nitrification composition comprises one or more members selected from the structures consisting of:
- wherein R43, R44, R45 and R46 are one or more members independently selected from the group consisting of:
- H and —CH2OH wherein at least one of R43, R44, R45 and R46 is —CH2OH,
- wherein R47, R48, R49 R50, R51 and R52 are one or more members independently selected from the group consisting of:
- H, and —CH2OH,
- wherein R53, R54, R55, R56, R57, R58, R59 and R60 are one or more members independently selected from the group consisting of:
- H and —CH2OH.
17 more elements
Dependencies are inferred from the claim text.