CN104045465B - A kind of solution system and application thereof containing normal-butyl thiophosphoryl triamine - Google Patents
A kind of solution system and application thereof containing normal-butyl thiophosphoryl triamine Download PDFInfo
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- CN104045465B CN104045465B CN201410318205.4A CN201410318205A CN104045465B CN 104045465 B CN104045465 B CN 104045465B CN 201410318205 A CN201410318205 A CN 201410318205A CN 104045465 B CN104045465 B CN 104045465B
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- butyl thiophosphoryl
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Abstract
The invention discloses a kind of solution system containing normal-butyl thiophosphoryl triamine, described solution system contains solvent and is dissolved in the normal-butyl thiophosphoryl triamine in described solvent, described solvent is the one in the such as citric acid ester type compound shown in structure formula I
wherein R1 is C
2-C
4alkyl, R2 is H or C
2h
5o.The solution system that the present invention contains normal-butyl thiophosphoryl triamine has low volatility and low combustible, Environmental Safety, good stability, (at-10 DEG C) still show good anti-solidified nature and anti-crystallization at quite low temperatures, and can be miscible with water, use range is wide, is applicable to large-scale promotion, has broad application prospects.
Description
Technical field
The present invention relates to a kind of fertilizer additive, especially relate to a kind of solution system and the application thereof that contain normal-butyl thiophosphoryl triamine.
Background technology
Agriculturally, urea extensively uses as nitrogenous fertilizer by China, and annual use is greater than 3,000 ten thousand tons, after urea is applied to soil, its major part is hydrolyzed into ammonia and carbonic acid gas, and this process is produced by some bacterium in soil and mycetogenetic urokinase catalyst.The ammonia produced and carbonic acid gas part be absorbed by plants outer other or evaporate in air, produce Greenhouse effect, or be water-solublely lost in river and underground water, polluted water.Therefore a large amount of lost of nitrogen on soil is used.
By using urease inhibitor and urea simultaneously, this hydrolytic process is effectively slowed down.The most effectively normal-butyl thiophosphoryl triamine (N-(n-butyl) thiophosphorictriamide) (NBPT) in the eurypalynous urease inhibitor of crowd, laboratory has demonstrated the effectiveness of NBPT, and this compound can in agriculture field commercial application at present.
Other normal-butyl thiophosphoryl triamine of technical grade is a kind of white powder compound, and heat and water easily decompose, and it is very difficult that the relation due to concentration directly mixes with urea granules.The normal-butyl thiophosphoryl triamine be dissolved in appropriate solvent is used to have more advantage technically.Solvent need meet some primary conditions: solubleness is high, and normal-butyl thiophosphoryl triamine stability is wherein high, and low temperature is crystallization not easily.
The additive that one is called " liquid amide " is described in U.S. Patent number 5698003, separate out when lesser temps for preventing normal-butyl thiophosphoryl triamine, add 10wt%N methyl pyrrole network alkane ketone, but N methyl pyrrole network alkane ketone is classified as usually can be carcinogenic, teratogenesis compound, so this additive is inadequate in security, in addition, the minimum use temperature of this additive is 0 DEG C, when temperature is below 0 DEG C, normal-butyl thiophosphoryl triamine can be separated out again, and the temperature in China's most area winter is all below 0 DEG C, therefore the use of this additive can be very limited.
Summary of the invention
The present invention is the problems referred to above in order to solve existing for prior art, and provide a kind of component simple, easy to use, security is high, good stability, the solution system containing normal-butyl thiophosphoryl triamine that use temperature is lower.
To achieve these goals, the present invention is by the following technical solutions:
Containing the solution system of normal-butyl thiophosphoryl triamine, described solution system contains solvent and is dissolved in the normal-butyl thiophosphoryl triamine in described solvent, and described solvent is the one in the such as citric acid ester type compound shown in structure formula I,
wherein R1 is C
2-C
4alkyl, R2 is H or C
2h
5o.Adopt citric acid ester type compound as solvent in the present invention, the equal degradable of citric acid ester type compound, belong to green solvent, and there is low volatility and low combustible, use Environmental Safety, the most important thing is that the solubleness of normal-butyl thiophosphoryl triamine in citric acid ester type compound is high, and good stability, effectively can prevent normal-butyl thiophosphoryl triamine solution crystallization, make solution system of the present invention at quite low temperatures (at-10 DEG C) still show good anti-solidified nature and anti-crystallization, and can be miscible with water, use range is wide.
As preferably, in described solution system, the mass percentage of citric acid ester type compound is 1 ~ 98%.
As preferably, described citric acid ester type compound is citric acid three propyl ester, tributyl citrate, acetyl triethyl citrate, acetyl tributyl citrate three propyl ester or tributyl acetylcitrate.
As preferably, described citric acid ester type compound is triethyl citrate.
As preferably, in described solution system, the mass percentage of normal-butyl thiophosphoryl triamine is 1 ~ 50%.
As preferably, in described solution system, the mass percentage of normal-butyl thiophosphoryl triamine is 1 ~ 40%.
As preferably, in described solution system, the mass percentage of normal-butyl thiophosphoryl triamine is 20 ~ 30%.
As preferably, described solution system is also containing solubility promoter, and described solubility promoter is aliphatic diol, and in solution system, the mass percentage of aliphatic diol is 1 ~ 98%.Solubility promoter has hydrotropy and suppresses the effect of crystallization, can improve the stability of solution system of the present invention further with citric acid ester type compound coordinated.
As preferably, described aliphatic diol is 1,2-PD or 1,3-PD.
A kind of solution system containing normal-butyl thiophosphoryl triamine is containing the application in urea fertilizer.Can be urea fertilizer containing urea fertilizer, also can be the compound manure containing urea, form containing urea fertilizer is not limit, can be solid also can be liquid, solution system of the present invention containing embody rule method in urea fertilizer is being: mixed with containing urea fertilizer by solution system by required proportioning, stir, in order to ensure the homogeneity of solution system of the present invention when mixing containing urea fertilizer with solid, first can add the tinting material used in agricultural or food in solution system of the present invention, tinting material can be lemon yellow, Sunset yellow, famille rose etc.
Therefore, the invention has the beneficial effects as follows: the solution system that the present invention contains normal-butyl thiophosphoryl triamine has low volatility and low combustible, Environmental Safety, good stability, (at-10 DEG C) still show good anti-solidified nature and anti-crystallization at quite low temperatures, and can be miscible with water, and use range is wide, be applicable to large-scale promotion, have broad application prospects.
Embodiment
Below by embodiment, the present invention will be further described.
In the present invention, if not refer in particular to, all per-cent is weight unit, and all devices and raw material all can be buied from market or the industry is conventional, and the method in following embodiment, if no special instructions, is this area ordinary method.
Embodiment 1
A kind of solution system containing normal-butyl thiophosphoryl triamine, containing solvent, solubility promoter and dissolving normal-butyl thiophosphoryl triamine in a solvent, wherein solvent is triethyl citrate, solubility promoter is 1,2-PD, in solution system, the mass percentage of normal-butyl thiophosphoryl triamine is 25%, the mass percentage of triethyl citrate is 25%, and the mass percentage of 1,2-PD is 50%.
Embodiment 2
The difference of the present embodiment and embodiment 1 is: solvent is acetyl triethyl citrate, in solution system, the mass percentage of normal-butyl thiophosphoryl triamine is 1%, the mass percentage of acetyl triethyl citrate is 98%, 1, the mass percentage of 2-propylene glycol is 1%, and all the other are identical.
Embodiment 3
The difference of the present embodiment and embodiment 1 is: solubility promoter is 1,3-PD, and in solution system, the mass percentage of normal-butyl thiophosphoryl triamine is 50%, the mass percentage of triethyl citrate is 28%, the mass percentage of 1,3-PD is 22%, and all the other are identical.
Embodiment 4
The difference of the present embodiment and embodiment 1 is: in solution system, and the mass percentage of normal-butyl thiophosphoryl triamine is 1%, and the mass percentage of triethyl citrate is 1%, and the mass percentage of 1,2-PD is 98%, and all the other are identical.
Embodiment 5
The difference of the present embodiment and embodiment 1 is: in solution system, the mass percentage of normal-butyl thiophosphoryl triamine is 20%, and the mass percentage of triethyl citrate is 30%, 1, the mass percentage of 2-propylene glycol is 50%, and all the other are identical.
Embodiment 6
The difference of the present embodiment and embodiment 1 is: in solution system, the mass percentage of normal-butyl thiophosphoryl triamine is 30%, and the mass percentage of triethyl citrate is 40%, 1, the mass percentage of 2-propylene glycol is 30%, and all the other are identical.
Solution system of the present invention containing the embody rule method in urea fertilizer is being:
(1) apply containing in urea fertilizer at solid: solution system of the present invention is directly added solid by required proportioning and mix containing in urea fertilizer, or first in solution system of the present invention, add appropriate tinting material (as lemon yellow, famille rose etc.), again the solution system containing tinting material is added solid by required proportioning to be uniformly mixed containing in urea fertilizer, until solution is uniformly distributed containing urea fertilizer particle surface at solid.
(2) apply containing in urea fertilizer at liquid: solution system of the present invention is directly added liquid by required proportioning and mix containing in urea fertilizer.
Be sealed in by solution system in embodiment 1 ~ 6 in the bottle of transparent glass and store under room temperature and sunlight, the 0th, 14,45,90 day time, carry out the NBPT mass percentage in sampling analysis measuring solution system respectively, the result obtained is as follows:
As can be seen from the above table, after storing 30d, the content of normal-butyl thiophosphoryl triamine does not obviously decline, and illustrates that solution system of the present invention has very high stability.
Above-described embodiment is one of the present invention preferably scheme, not does any pro forma restriction to the present invention, also has other variant and remodeling under the prerequisite not exceeding the technical scheme described in claim.
Claims (4)
1. the solution system containing normal-butyl thiophosphoryl triamine, it is characterized in that, described solution system contains solvent, be dissolved in normal-butyl thiophosphoryl triamine in described solvent and solubility promoter, and described solvent is the one in the such as citric acid ester type compound shown in structure formula I
wherein R1 is C
2-C
4alkyl, R2 is H or C
2h
5o, in described solution system, the mass percentage of citric acid ester type compound is 1 ~ 98%, and described citric acid ester type compound is citric acid three propyl ester, tributyl citrate, acetyl triethyl citrate, acetyl tributyl citrate three propyl ester, tributyl acetylcitrate or triethyl citrate; In described solution system, the mass percentage of normal-butyl thiophosphoryl triamine is 1 ~ 50%; Described solubility promoter is aliphatic diol, and in solution system, the mass percentage of aliphatic diol is 1 ~ 98%, and described aliphatic diol is 1,2-PD or 1,3-PD.
2. a kind of solution system containing normal-butyl thiophosphoryl triamine according to claim 1, it is characterized in that, in described solution system, the mass percentage of normal-butyl thiophosphoryl triamine is 1 ~ 40%.
3. a kind of solution system containing normal-butyl thiophosphoryl triamine according to claim 2, it is characterized in that, in described solution system, the mass percentage of normal-butyl thiophosphoryl triamine is 20 ~ 30%.
4. the solution system as claimed in claim 1 containing normal-butyl thiophosphoryl triamine is containing the application in urea fertilizer.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020233785A1 (en) * | 2019-05-20 | 2020-11-26 | Deltachem Gmbh | Solution, aerosol for use as a fertilizer additive, use of an aqueous solution and/or of an aerosol as an additive to a fertilizer and a related composition |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2992028C (en) * | 2015-07-13 | 2018-11-20 | Koch Agronomic Services, Llc | Highly concentrated phosphoric or thiophosphoric triamide formulation |
| CN106946632A (en) * | 2017-05-24 | 2017-07-14 | 浙江今晖新材料股份有限公司 | A kind of compound fertilizer synergistic agent and its preparation and application |
| CN110041140A (en) * | 2019-05-30 | 2019-07-23 | 湖北兴福电子材料有限公司 | A kind of nitrogenous compound fertilizer synergist and preparation method thereof |
| CN110041141A (en) * | 2019-05-30 | 2019-07-23 | 湖北兴福电子材料有限公司 | A kind of mixed aid promoting organic nitrogenous fertilizer fertilizer efficiency |
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| US20140037570A1 (en) * | 2012-08-02 | 2014-02-06 | Whitehurst Associates Inc. | NBPT solution for preparing urease inhibited urea fertilizers prepared from N-alkyl; N, N-alkyl; and N-alkyl-N-alkoxy amino alcohols |
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| US5364438A (en) * | 1993-11-12 | 1994-11-15 | Freeport-Mcmoran Resource Partners, Limited Partnership | Fluid urea-containing fertilizer |
| CN101370753A (en) * | 2006-01-12 | 2009-02-18 | 阿格罗泰恩国际股份有限公司 | Additive containing N-(n-butyl) thiophosphoric triamide for urea-based fertilizer |
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