CN102584480B - Colloidal suspension agent for nitrogen fertilizer synergism and application thereof - Google Patents
Colloidal suspension agent for nitrogen fertilizer synergism and application thereof Download PDFInfo
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- CN102584480B CN102584480B CN201210097464.XA CN201210097464A CN102584480B CN 102584480 B CN102584480 B CN 102584480B CN 201210097464 A CN201210097464 A CN 201210097464A CN 102584480 B CN102584480 B CN 102584480B
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Abstract
The invention discloses a colloidal suspension agent for nitrogen fertilizer synergism, which is prepared from 2-chlorine-6-nitrapyrin, an emulsifier, calcium lignosulphonate, white carbon black, xanthan gum, N,N-dimethylformamide and water in a certain proportion. The nitrogen fertilizer can be sprayed to the particle surface after being screened by using the colloidal suspension agent along with good attachment effect, so that addition of the colloidal suspension agent before nitrogen fertilizer granulation is avoided, so that waste is reduced, and production cost is reduced; and the defect that 2-chloride-6-trichloromethylpyridine is slightly soluble is overcome, so that the colloidal suspension agent can be applied to nitrogen-containing water-soluble fertilizer.
Description
Technical field
The present invention relates to a kind of composition, relate in particular to a kind of suspension concentrate for nitrogenous fertilizer synergy and manufacturing the application of stable fertilizer.
Background technology
The fertilizer application amount of China in 2010, more than 100,000,000 tons, ranks first in the world, but the utilization ratio of chemical fertilizer is only 30%-35% then, utilization rate of nitrogen fertilizer 30%-35% wherein, phosphate fertilizer 10%-20%, potash fertilizer 40%-50%, far below developed country's level (50%-60%).The economic worth of China's loss of nitrogen fertilizer amount in 2011 is 60,000,000,000-80,000,000,000.The nitrogenous fertilizer losing is day by day serious to the detrimentally affect of body of groundwater, surperficial water body and atmospheric environment.Because the conversion rate of nitrogen in soil is too fast, phosphorus element and potassium element are very soon by soil fixing, and crop can not absorb for a long time, also needs repeatedly to topdress to the crop later stage.The utilization ratio that improves chemical fertilizer has become the task of top priority.For solve that utilization rate of fertilizer is low, fertilizer efficiency period is short problem, successively worked out urea formaldehyde sustained-release fertilizer, stable fertilizer, coating class Controlled Release Fertilizer both at home and abroad and be correlated with or derived product.Wherein urea formaldehyde and coating series products are because cost is high, and complex process, easily brings the defects such as secondary pollution, and Popularization And Development is slower at present.Stable fertilizer refer in nitrogenous fertilizer or nitrogen fertilizer are produced or used, add urease inhibitor and (or) a class new type nitrogen fertilizer kind of nitrification inhibitor.Urease inhibitor and nitrification inhibitor can be controlled respectively the conversion of amidonitrogen to ammonium nitrogen and ammonium nitrogen to nitric nitrogen, and effect is remarkable, and cost is lower, and prospect of the application is very large.N-serve has passed through strict laboratory toxicological test, land for growing field crops long run test and transformation period check, when having effective inhibition, edatope is not had to detrimentally affect, is a kind of nitrification inhibitor safely and reliably.But N-serve vapour pressure is higher, temperature easily distils while surpassing 70 ℃, therefore, while directly adding to before the granulation of nitrogenous fertilizer according to ordinary method, through drying or follow the production process of high temperature can be lossy, thereby cause waste to increase production cost.
Water-soluble fertilizer has obtained application more and more widely now, and water-soluble fertilizer has dividing of solid water-soluble fertilizer and liquid water-soluble fertilizer.Solid water-soluble fertilizer is all produced or deposits with solid form, uses water dissolution during use again; Liquid water-soluble fertilizer is produced or deposits with liquid form.In order to make stability water-soluble fertilizer, can in solid water-soluble fertilizer dissolution process or in the liquid water-soluble fertilizer course of processing or dissolution process, add N-serve, but because the solubleness of N-serve in water is limited, the use making it in water-soluble fertilizer is restricted, and effect is unsatisfactory.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of suspension concentrate for nitrogenous fertilizer synergy, and it can avoid the waste loss of N-serve in application process for the preparation of stable fertilizer, reduces production costs; Can also greatly increase the solubleness of N-serve in water for making stability water-soluble fertilizer, improve the result of use of fertilizer.
In order to solve the problems of the technologies described above, the present invention takes following technical scheme:
A kind of suspension concentrate for nitrogenous fertilizer synergy, it is characterized in that each composition weight proportioning is N-serve: emulsifying agent: calcium lignin sulphonate: white carbon black: xanthan gum: DMF: water=100: 20～100: 1～5: 20～100: 1～5: 2～10: 100～500.
Technique scheme can be optimized, and each composition weight proportioning is N-serve: emulsifying agent: calcium lignin sulphonate: white carbon black: xanthan gum: DMF: water=100: 50: 3: 50: 2: 5: 290.
Described emulsifying agent is 0613-X, is commercial goods, can buy acquisition.
Another technical problem to be solved by this invention is to provide the application of this suspension concentrate in manufacturing stable fertilizer or stability water-soluble fertilizer, and the technical scheme of taking is:
Be used for the suspension concentrate of nitrogenous fertilizer synergy in the application of manufacturing stable fertilizer, it is characterized in that, by after nitrogenous fertilizer screening, described suspension concentrate being sprayed on nitrogenous fertilizer particle surface, the weight ratio of suspension concentrate and nitrogenous fertilizer is 1: 200～1000, preferably 1: 300.
Aforementioned nitrogenous fertilizer is urea, ammonium nitrogenous fertilizer or to take urea and/or ammonium nitrogenous fertilizer be compound (mixing) fertilizer that raw material is manufactured.
Or, be used for the suspension concentrate of nitrogenous fertilizer synergy in the application of manufacturing stability water-soluble fertilizer, it is characterized in that described suspension concentrate to add in the application dissolution process of solid water-soluble fertilizer, in the course of processing of liquid water-soluble fertilizer or in application dissolution process, add, the weight ratio of suspension concentrate and solid water-soluble fertilizer or liquid water-soluble fertilizer is 1: 80～2000, preferably 1: 450.
Described solid water-soluble fertilizer or liquid water-soluble fertilizer are for take urea or/and the water-soluble fertilizer that ammonium nitrogenous fertilizer is manufactured as nitrogenous source.
The present invention is by being made into N-serve suspension concentrate and controlling each component proportion, make suspension concentrate after nitrogen fertilizer screening, spray to again on nitrogenous fertilizer, adhesion effect is good, avoided adding before nitrogenous fertilizer granulation, both reduced waste, protect again operating environment, be applied in nitrogenous water-soluble fertilizer, solved N-serve in a water-soluble sl. sol. difficult problem; And make the various material environmentally safes that suspension concentrate is used, be conducive to environment protection.
Embodiment
Following examples are used for illustrating the present invention, but are not used for limiting the scope of the invention.
Embodiment mono-:
100 kilograms of N-serves are dropped in stirring tank, add N, 2 kilograms of dinethylformamides, the emulsifying agent 0613-X that adds again 20 kilograms, is warming up to 40 ℃, stirs and after 1 hour, adds 1 kilogram of calcium lignin sulphonate, 20 kilograms of white carbon blacks, 1 kilogram of xanthan gum, add 100 kilograms, water, agitation grinding 3 hours, standing 0.5 hour of material is without demixing phenomenon, the qualified packing of product.
Embodiment bis-:
100 kilograms of N-serves are dropped in stirring tank, add N, 10 kilograms of dinethylformamides, the emulsifying agent 0613-X that adds again 100 kilograms, is warming up to 40 ℃, stirs and after 1 hour, adds 5 kilograms of calcium lignin sulphonates, 100 kilograms of white carbon blacks, 5 kilograms of xanthan gum, add 500 kilograms, water, agitation grinding 3 hours, standing 0.5 hour of material is without demixing phenomenon, the qualified packing of product.
Embodiment tri-:
100 kilograms of N-serves are dropped in stirring tank, add N, 5 kilograms of dinethylformamides, the emulsifying agent 0613-X that adds again 50 kilograms, is warming up to 40 ℃, stirs and after 1 hour, adds 3 kilograms of calcium lignin sulphonates, 50 kilograms of white carbon blacks, 2 kilograms of xanthan gum, add 290 kilograms, water, agitation grinding 3 hours, standing 0.5 hour of material is without demixing phenomenon, the qualified packing of product.
Embodiment tetra-:
After urea (or ammonium nitrogenous fertilizer, as monoammonium phosphate etc.) granulation, will after suspension concentrate atomization, from the travelling belt of prilling tower bottom, spray to urea granules surface.While using outsourcing urea, on fluidized-bed, first urea is preheating to 50 degree, suspension concentrate atomizing spraying is surperficial to urea granules; Or in rotary drum granulator, urea granules is preheating in hot blast after 50 degree on travelling belt suspension concentrate atomizing spraying to urea granules surface.If take urea and (or) ammonium nitrogenous fertilizer is compound (mix) fertilizer that raw material is manufactured, can be after screening before packing, suspension concentrate atomizing spraying is surperficial to fertiliser granulates.In above-mentioned spraying suspension concentrate, the weight ratio of suspension concentrate and nitrogenous fertilizer is controlled at 1: 200～and 1000, preferably 1: 300.
Embodiment five:
Be applied in water-soluble fertilizer, described suspension concentrate is added in the application dissolution process of solid water-soluble fertilizer, or add in the course of processing of liquid water-soluble fertilizer or in application dissolution process.The weight of the water that dissolved solids water-soluble fertilizer or liquid water-soluble fertilizer are used is determined by existing operation general knowledge, without change.The weight ratio of suspension concentrate and solid water-soluble fertilizer or liquid water-soluble fertilizer is 1: 80～2000, preferably 1: 450.Solid water-soluble fertilizer or liquid water-soluble fertilizer are for take urea or/and the water-soluble fertilizer that ammonium nitrogenous fertilizer is manufactured as nitrogenous source is prior art, without explaining at this.
The various embodiments described above of the present invention are raw materials used all can be from directly buying and obtain on the market.The stable fertilizer that aforesaid method is made, has effectively extended fertilizer efficiency period, has improved utilization ratio, the fertilizer efficiency period of common nitrogenous fertilizer can be extended to 50-80 days, and the 10%-15% that increases operation rate has reduced nitrogen to the loss in environment.Manufacture craft is simple, and cost is low, and convenient operation only need be by the suspension concentrate atomizing spraying of N-serve to chemical fertilizer granule surface, and the cost that chemical fertilizer per ton increases is below 100 yuan.
Claims (7)
1. the suspension concentrate for nitrogenous fertilizer synergy, it is characterized in that each composition weight proportioning is N-serve: emulsifying agent: calcium lignin sulphonate: white carbon black: xanthan gum: DMF: water=100:20～100:1～5:20～100:1～5:2～10:100～500.
2. the suspension concentrate for nitrogenous fertilizer synergy as claimed in claim 1, it is characterized in that each composition weight proportioning is N-serve: emulsifying agent: calcium lignin sulphonate: white carbon black: xanthan gum: DMF: water=100:50:3:50:2:5:290.
3. the suspension concentrate for nitrogenous fertilizer synergy described in claim 1 or 2 is being manufactured the application of stable fertilizer, it is characterized in that, by after nitrogenous fertilizer screening, described suspension concentrate being sprayed on nitrogenous fertilizer particle surface, and the weight ratio of suspension concentrate and nitrogenous fertilizer is 1:200～1000.
4. application as claimed in claim 3, the weight ratio that it is characterized in that suspension concentrate and nitrogenous fertilizer is 1:300.
5. the application as described in claim 3 or 4, is characterized in that described nitrogenous fertilizer is urea, ammonium nitrogenous fertilizer or to take urea and/or ammonium nitrogenous fertilizer be the composite fertilizer that raw material is manufactured.
6. the suspension concentrate for nitrogenous fertilizer synergy described in claim 1 or 2 is being manufactured the application of stability water-soluble fertilizer, it is characterized in that described suspension concentrate to add in the application dissolution process of solid water-soluble fertilizer, in the course of processing of liquid water-soluble fertilizer or in application dissolution process, add, the weight ratio of suspension concentrate and solid water-soluble fertilizer or liquid water-soluble fertilizer is 1:80～2000; Wherein, described solid water-soluble fertilizer or liquid water-soluble fertilizer are for take urea or/and the water-soluble fertilizer that ammonium nitrogenous fertilizer is manufactured as nitrogenous source.
7. application as claimed in claim 6, the weight ratio that it is characterized in that suspension concentrate and solid water-soluble fertilizer or liquid water-soluble fertilizer is 1:450.
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| CN201210097464.XA CN102584480B (en) | 2012-04-01 | 2012-04-01 | Colloidal suspension agent for nitrogen fertilizer synergism and application thereof |
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| CN201210097464.XA CN102584480B (en) | 2012-04-01 | 2012-04-01 | Colloidal suspension agent for nitrogen fertilizer synergism and application thereof |
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| CN102584480B true CN102584480B (en) | 2014-03-12 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104163708B (en) * | 2014-08-01 | 2016-02-24 | 成都新柯力化工科技有限公司 | A kind of water soluble composite fertilizer suspension aids and its preparation method and application |
| CN104276907A (en) * | 2014-10-28 | 2015-01-14 | 浙江奥复托化工有限公司 | Environment-friendly type controlled-release nitrogen fertilizer preparation and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1058580A (en) * | 1990-08-02 | 1992-02-12 | 湖南省资江氮肥厂 | Area synergist |
| DE4219661A1 (en) * | 1992-06-16 | 1993-12-23 | Wittenberg Stickstoff Ag | Synergistic nitrification inhibitor compsns. - contg. cyanamide and pyrazole deriv. or nitrapyrin |
| CN1216016C (en) * | 2003-04-08 | 2005-08-24 | 西南农业大学 | Natural plant-carrying compound nitrogen fertilizer synergistic agent |
| CN1522993A (en) * | 2003-09-03 | 2004-08-25 | 曹承绵 | Water preserving nitrogenous fertilizer synergist and preparation method thereof |
| CN101279865B (en) * | 2007-04-04 | 2010-12-08 | 汉枫缓释肥料（黑龙江）有限公司 | Long-term slow release formulation containing slow release nitrogen fertilizer and production method thereof |
| CN101633589A (en) * | 2009-08-25 | 2010-01-27 | 黄莹 | Nitrogenous fertilizer synergist |
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