CN104045465A - Solution system containing n-butyl sulfo-phosphoric triamide and application thereof - Google Patents
Solution system containing n-butyl sulfo-phosphoric triamide and application thereof Download PDFInfo
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- CN104045465A CN104045465A CN201410318205.4A CN201410318205A CN104045465A CN 104045465 A CN104045465 A CN 104045465A CN 201410318205 A CN201410318205 A CN 201410318205A CN 104045465 A CN104045465 A CN 104045465A
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- solution system
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- butyl thiophosphoryl
- thiophosphoryl triamine
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Abstract
The invention discloses a solution system containing n-butyl sulfo-phosphoric triamide. The solution system contains a solvent and n-butyl sulfo-phosphoric triamide dissolved in the solvent, wherein the solvent is one of citric acid ester compounds as shown in the structure formula (I) in the specification, in the formula (I), R1 is C2-C4 alkyl, and R2 is H or C2H5O. The solution system containing n-butyl sulfo-phosphoric triamide, which is disclosed by the invention, is low in volatility and combustibility, is environment-friendly and safe, good in stability, very good in curing resistance and crystallization resistance at a very low temperature (less than minus 10 DEG C), can be mixed and dissolved in water and is wide in application range, applicable to on-scale popularization and wide in application prospect.
Description
Technical field
The present invention relates to a kind of fertilizer additive, especially relate to a kind of solution system that contains normal-butyl thiophosphoryl triamine and application thereof.
Background technology
In agricultural, China is extensively used urea as nitrogenous fertilizer, 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 to be produced by some bacterium in soil and mycetogenetic urokinase catalyst.The ammonia producing and carbonic acid gas part be absorbed by plants outer other or evaporate in atmosphere, produce Greenhouse effect, or water-soluble being lost in river and underground water, polluted water.Therefore used a large amount of loss of nitrogen on soil.
By use urease inhibitor and urea simultaneously, this hydrolytic process is effectively slowed down.In the eurypalynous urease inhibitor of crowd, the most effectively normal-butyl thiophosphoryl triamine (N-(n-butyl) thiophosphoric triamide) is (NBPT), laboratory empirical tests the effectiveness of NBPT, this compound can be 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 directly mixing with urea granules due to the relation of concentration.Use technically the normal-butyl thiophosphoryl triamine being dissolved in appropriate solvent to have more advantage.Solvent need meet some primary conditions: solubleness is high, and normal-butyl thiophosphoryl triamine stability is therein high, and low temperature is difficult for crystallization.
In U.S. Patent number 5698003, introduce the additive that one is called " liquid amide ", separate out when the 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 conventionally 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, temperature below 0 DEG C time normal-butyl thiophosphoryl triamine can separate out again, and the temperature in China most areas 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 in order to solve the existing the problems referred to above of prior art, provides a kind of component simple, easy to use, safe, good stability, the solution system that what use temperature was lower contain normal-butyl thiophosphoryl triamine.
To achieve these goals, the present invention is by the following technical solutions:
A solution system that contains 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 citric acid ester type compound as shown in structure formula I,
wherein R1 is C
2-C
4alkyl, R2 is H or C
2h
5o.In the present invention, adopt citric acid ester type compound as solvent, 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, can effectively prevent normal-butyl thiophosphoryl triamine solution crystallization, make solution system of the present invention (at 10 DEG C) at very low temperature 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 quality percentage composition 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 quality percentage composition of normal-butyl thiophosphoryl triamine is 1～50%.
As preferably, in described solution system, the quality percentage composition of normal-butyl thiophosphoryl triamine is 1～40%.
As preferably, in described solution system, the quality percentage composition of normal-butyl thiophosphoryl triamine is 20～30%.
As preferably, described solution system also contains solubility promoter, and described solubility promoter is aliphatic diol, and in solution system, the quality percentage composition of aliphatic diol is 1～98%.Solubility promoter has hydrotropy and suppresses the effect of crystallization, can further improve the stability of solution system of the present invention 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 that contains normal-butyl thiophosphoryl triamine is in the application containing in urea fertilizer.Can be urea fertilizer containing urea fertilizer, also can be the compound manure that contains urea, form containing urea fertilizer is not limit, can be that solid can be also liquid, solution system of the present invention is containing concrete application method in urea fertilizer being: by required proportioning by solution system with contain urea fertilizer and mix, stir, in order to ensure the homogeneity of solution system of the present invention in the time mixing containing urea fertilizer with solid, can first in solution system of the present invention, add the tinting material using in agricultural or food, 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 very low temperature, (at 10 DEG C) still show good anti-solidified nature and anti-crystallization, 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 that contains normal-butyl thiophosphoryl triamine, contain solvent, solubility promoter and be dissolved in the normal-butyl thiophosphoryl triamine in solvent, wherein solvent is triethyl citrate, solubility promoter is 1,2-PD, in solution system, the quality percentage composition of normal-butyl thiophosphoryl triamine is 25%, the quality percentage composition of triethyl citrate is 25%, and the quality percentage composition 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 quality percentage composition of normal-butyl thiophosphoryl triamine is 1%, the quality percentage composition of acetyl triethyl citrate is 98%, 1, the quality percentage composition 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 quality percentage composition of normal-butyl thiophosphoryl triamine is 50%, the quality percentage composition of triethyl citrate is 28%, the quality percentage composition 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, the quality percentage composition of normal-butyl thiophosphoryl triamine is 1%, and the quality percentage composition of triethyl citrate is 1%, and the quality percentage composition 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 quality percentage composition of normal-butyl thiophosphoryl triamine is 20%, and the quality percentage composition of triethyl citrate is 30%, 1, the quality percentage composition 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 quality percentage composition of normal-butyl thiophosphoryl triamine is 30%, and the quality percentage composition of triethyl citrate is 40%, 1, the quality percentage composition of 2-propylene glycol is 30%, and all the other are identical.
Solution system of the present invention at the concrete application method containing in urea fertilizer is:
(1) at solid containing applying in urea fertilizer: solution system of the present invention is directly added solid mix in containing urea fertilizer by required proportioning, or first in solution system of the present invention, add appropriate tinting material (as lemon yellow, famille rose etc.), add solid to contain in urea fertilizer by required proportioning the solution system that contains tinting material again and be uniformly mixed, until solution is uniformly distributed containing urea fertilizer particle surface at solid.
(2) at liquid containing applying in urea fertilizer: solution system of the present invention is directly added liquid mix in containing urea fertilizer by required proportioning.
Solution system in embodiment 1～6 is sealed in the bottle of transparent glass and stores under room temperature and sunlight, carry out respectively the NBPT quality percentage composition in sampling analysis measuring solution system in the time of the 0th, 14,45,90 days, the result obtaining is as follows:
As can be seen from the above table, store after 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 preferably scheme of one of the present invention, not the present invention is done to any pro forma restriction, also has other variant and remodeling under the prerequisite that does not exceed the technical scheme that claim records.
Claims (10)
1. a solution system that contains normal-butyl thiophosphoryl triamine, it is characterized in that, 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 citric acid ester type compound as shown in structure formula I
wherein R1 is C
2-C
4alkyl, R2 is H or C
2h
5o.
2. a kind of solution system that contains normal-butyl thiophosphoryl triamine according to claim 1, is characterized in that, in described solution system, the quality percentage composition of citric acid ester type compound is 1～98%.
3. a kind of solution system that contains normal-butyl thiophosphoryl triamine according to claim 2, it is characterized in that, 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.
4. a kind of solution system that contains normal-butyl thiophosphoryl triamine according to claim 3, is characterized in that, described citric acid ester type compound is triethyl citrate.
5. a kind of solution system that contains normal-butyl thiophosphoryl triamine according to claim 1, is characterized in that, in described solution system, the quality percentage composition of normal-butyl thiophosphoryl triamine is 1～50%.
6. a kind of solution system that contains normal-butyl thiophosphoryl triamine according to claim 5, is characterized in that, in described solution system, the quality percentage composition of normal-butyl thiophosphoryl triamine is 1～40%.
7. a kind of solution system that contains normal-butyl thiophosphoryl triamine according to claim 1, is characterized in that, in described solution system, the quality percentage composition of normal-butyl thiophosphoryl triamine is 20～30%.
8. a kind of solution system that contains normal-butyl thiophosphoryl triamine according to claim 1, it is characterized in that, described solution system also contains solubility promoter, and described solubility promoter is aliphatic diol, and in solution system, the quality percentage composition of aliphatic diol is 1～98%.
9. a kind of solution system that contains normal-butyl thiophosphoryl triamine according to claim 8, is characterized in that, described aliphatic diol is 1,2-PD or 1,3-PD.
10. a solution system that contains normal-butyl thiophosphoryl triamine as claimed in claim 1 is in the application containing in urea fertilizer.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106348988A (en) * | 2015-07-13 | 2017-01-25 | 科氏农艺服务有限责任公司 | 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 |
| 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 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106348988A (en) * | 2015-07-13 | 2017-01-25 | 科氏农艺服务有限责任公司 | Highly concentrated phosphoric or thiophosphoric triamide formulation |
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| 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 |
| 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 |
| 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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| CN104045465B (en) | 2016-04-06 |
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