CN104151090B - New soil ecological balance nutrition fertilizer - Google Patents
New soil ecological balance nutrition fertilizer Download PDFInfo
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- CN104151090B CN104151090B CN201410451025.3A CN201410451025A CN104151090B CN 104151090 B CN104151090 B CN 104151090B CN 201410451025 A CN201410451025 A CN 201410451025A CN 104151090 B CN104151090 B CN 104151090B
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Abstract
The present invention relates to new soil ecological balance nutrition fertilizer; described new soil ecological balance nutrition fertilizer is solid particle or powder; new soil ecological balance nutrition fertilizer comprises at least one organic or inorganic fertilizer; described solid particle or powder surface are coated with polysiloxanes; described polysiloxanes side chain is non-polar group, not containing any polar group. Fertiliser granulates or powder that surface is coated with polysiloxanes have better anti-caking ability, can also be applied to better drip irrigation and spray irrigation simultaneously.
Description
Technical field
The present invention relates to new soil ecological balance nutrition fertilizer.
Background technology
Water soluble fertilizer (WaterSolubleFertilizer is called for short WSF) is the nutrition fertilizer that a Plants is used,Multi-elements composite fertilizer material that can be completely water-soluble, can promptly be dissolved in the water, easily absorbed by crops, Nutrient Absorption utilization rateRelatively high, especially it can be applied to the industrialized agricultures such as sprinkling irrigation, drip irrigation, realizes water-fertilizer integral, reach water saving, economize fertile,The usefulness of saving of labor and volume increase. Water soluble fertilizer good water solubility, impurity is few, and electrical conductivity is low, and working concentration is conveniently adjusted, has fertilizerThe advantages such as effect is fast, crop absorption ratio is high, fertilising is simple, be difficult for burning seedling and applicability is strong are the important directions that following fertilizer developsOne of.
But WSF is owing to there being multiple inorganic or organic matter, in storage, handling, transportation or in the specific external worldUnder condition, caking can become and be more prone to, and therefore caking becomes that to perplex vast chemical fertilizer producer and peasant user one the most aobviousThe problem of work. The agglomeration problems of product not only can be given manufacturer, sales department and user's transport, be stored and use and cause notJust, the fertilizer of caking must carry out fragmentation and screening processing again, and this must increase extra-pay, has also caused fertilizer simultaneouslyLoss and the generation of dust will bring harm to operator's health, for the existence of the chemical fertilizer production enterprise of meagre profit with send outThe harm that exhibition causes is very huge.
Summary of the invention
In order to solve the problems of the technologies described above, the invention provides a kind of new soil ecological balance nutrition fertilizer, described novel soilEarth ecological balance nutrition fertilizer is solid particle or powder, and new soil ecological balance nutrition fertilizer comprises at least one organic or inorganicFertilizer, is characterized in that, described solid particle or powder surface are coated with polysiloxanes, and described polysiloxanes side chain is nonpolarGroup, containing any polar group.
Described non-polar group is methyl, ethyl, halogen alkyl.
The relative molecular weight of described polysiloxanes is 2000-5000.
Described solid particle or powder surface are also coated with the polysiloxanes of amido-containing group.
The relative molecular weight of the polysiloxanes of described amido-containing group is 30000-50000.
The amino content of the polysiloxanes of described amido-containing group is 1.1-1.5mmol/g.
Described side chain is non-polar group, containing the polyoxy alkane of any polar group and the polysiloxanes of amido-containing groupMass ratio is 1:0.8-1.5.
The polysiloxanes of described amido-containing group is end amino silicones.
The amino polysiloxanes having concurrently with side amino of polysiloxanes end of described amido-containing group.
End amino in the polysiloxanes that described end amino and side amino have concurrently and the number of side amino are than for being less than 1:5.
Fertiliser granulates or powder that surface is coated with polysiloxanes have better anti-caking ability, simultaneously can also be betterBe applied to drip irrigation and spray irrigation.
Detailed description of the invention
In conjunction with concrete implementation method, the present invention is described below:
New soil ecological balance nutrition fertilizer, described new soil ecological balance nutrition fertilizer is solid particle or powder, newType soil ecology balanced nutrients fertilizer comprises at least one organic or inorganic fertilizer, it is characterized in that described solid particle or powderSurface is coated with polysiloxanes, and described polysiloxanes side chain is non-polar group, not containing any polar group.
Described fertilizer refers to nitrogen, phosphorus, potash fertilizer etc., also refers to bio-feritlizer, organic fertilizer etc.
Fertilizer composition is the internal factor that affects fertilizer agglomeration. Raw material difference, its dissolubility, hygroscopicity difference, solubilityGreatly, bibulous salt facilitates the chance of caking just large; Otherwise, little. Containing urea, ammonium nitrate composition its caking of composite fertilizer howJust serious.
The adding method of anticaking agent has interior interpolation and outer spraying.
Interior interpolation is that the appropriate position before granulation joins additive in melting composite fertilizer solution, and anticaking agent is through pumpBe transported to heating tank, then be transported in melting fertilizer pipeline and fully mix by measuring pump, because interior interpolation is complete mixingClose process, reach and additional identical preventing blocking effect, the adding proportion of anticaking agent is relatively additional wants high, also has anti-caking simultaneouslyThe decomposition of piece agent and loss, cost is higher. In addition, interior interpolation anticaking agent is to composite fertilizer's production operation ginsengs such as flow pressure temperatureNumber also has a certain impact.
Outer spraying is the appropriate position spraying anticaking agent in Belt Conveying process in granulation tower or before packaging, twoPlant common outer spraying coating process, one is in composite fertilizer's course of conveying, utilizes compressed air that additive is sprayed by injectorBe spread across in coating machine and mix with fertiliser granulates. Another kind is by shower nozzle, anticaking agent to be sprayed in granulation tower and the urine fallingCrude granule mixes. The advantage of outer spraying is to affect hardly urea production process parameter, and additive amount is internally added few mutually. ButThe uniformity coefficient that is outer spraying is not only relevant with anticaking agent self performance, and with the spray mode of nozzle, spraying after mixedClosing situation, Belt Conveying speed and urea landing situation etc. is closely related.
The present invention has adopted more simple method to make the coated solid particle of polysiloxanes or powder, due to major partFertilizer dispatches from the factory and more or less all can contain anticaking agent, and this makes the coated more difficult of polysiloxanes, adopts higher preparationTemperature, at high temperature mixes fertiliser granulates with polysiloxanes, particularly, improve preparation temperature and can make coating efficiency moreHigh.
In order to improve the hydrophobicity of solid particle and powder, make particle or powder be coated with more equably poly-silicaAlkane, described non-polar group is methyl, ethyl, halogen alkyl. As fluorine-containing polysiloxanes, at preparation temperature of the present inventionUnder, there is better covered effect, coated more even.
Conventionally, in order to improve hydrophobicity, the molecular weight of polysiloxanes should be more than 10000, and the present invention adopts described poly-The relative molecular weight of siloxanes is 2000-5000, has lower viscosity, more easily mix with solid particle and powder,To hydrophobic effect be not less than macromolecular polysiloxanes, there is better sprinkling irrigation effect (long-term use can not stop up shower nozzle) simultaneouslyAnd degradability, the present inventor in test, beat all this result of having found. The use amount of polysiloxanes is preferredThe mass content of 0.1-3%, preferably 1-2% mass content, lower than 0.1% mass ratio, because polysiloxanes very little, cannot formCoated; And higher than 3% mass ratio, because polysiloxanes is too many, hydrophobicity is too strong, dissolubility reduces, undissolved polysiloxanesEasily stop up shower nozzle. In addition,, at urea quality content 30-50%, zinc sulfate content is at the new soil ecological balance nutrition fertilizer of 3-5%In system, low molecular polysiloxanes has better hydrophobic effect, may be because the special crystallization shape of urea and zinc sulfateFormula, makes low molecular polysiloxanes have better adsorption capacity on its surface, also can more evenly be distributed in solid particleOn powder, in this system, can reduce the caking rate of about 30-80%.
In order to obtain better sprinkling irrigation or drip irrigation effect, described solid particle or powder surface are also coated with containing amino basedThe polysiloxanes of group. Amino can make polysiloxanes to be more effectively coated at the surface of solids, and meanwhile, amino group makesPolysiloxanes has obtained better water-soluble, also has good hydrophobicity simultaneously, selects amino, is because it can be adsorbed onThe surface of most of fertilizer, hydrophily is not too strong simultaneously. The relative molecular weight of the polysiloxanes of described amido-containing group is30000-50000. Lower than 30000, hydrophily is too strong, is unfavorable for anti-caking. Molecular weight is higher than 50000, and viscosity is too high, noBe beneficial to sprinkling irrigation drip irrigation and coated. This molecular weight, based on amino silicones, obtains through inventor's great many of experiments. ChoosingThe amino content of selecting the polysiloxanes of described amido-containing group is 1.1-20mmol/g, the content of amino group and the choosing of molecular weightSelect principle basically identical, preferably 1.3mmol/g.
Described side chain is non-polar group, not containing the polysiloxanes of any polar group and the polysiloxanes of amido-containing groupMass ratio be 1:0.8-1.5. The polysiloxanes of amido-containing group can form several strong on solid particle or powder surfaceAdsorption site, but the hydroxyl being easy in water forms hydrogen bond. And side chain is non-polar group, do not contain the poly-silica of any polar groupAlthough alkane forms weak absorption on solid particle or powder surface, hydrophobicity is strong, by strong hydrophobicity, isolatedWater, the two when coated long-chain short chain mutually residual around, cooperatively interact, there is certain complementary effect, its proportioning is to anticaking capacityEnergy impact is very large, and the present inventor finds through a large amount of experiments, when side chain is non-polar group, containing any polar groupThe mass ratio of the polysiloxanes of group and the polysiloxanes of amido-containing group is that 1:0.8-1.5 has good anti-caking performance, matterAmount is than outside 1:0.8-1.5, and caking rate reaches 6%, even higher, cannot reach the requirement of application. In order to obtain betterAnti-caking performance, preferably, the described mass ratio that does not contain the polyoxy alkane of any polar group and the polysiloxanes of amido-containing groupFor 1:1-1.3. Within the scope of this, caking rate can be controlled in 2%.
Found through experiments, the polysiloxanes of described amido-containing group is end amino silicones, and strong adsorption site is by holdingWhen amino generation, anticaking capacity is better, and the present inventor has studied its mechanism, and possible mechanism is: side chain is nonpolarGroup is not wound around mutually one or 2 when coated containing the polysiloxanes of any polar group and the polysiloxanes of amido-containing groupIndividual end amino has better winding effect. According to its mechanism, the present inventor's further experiment is found, when described containingWhen the polysiloxanes end amino of amino group and the polysiloxanes that side amino has concurrently, its winding effect should be able to be better, and experiment is sent outExisting, its anti-caking performance is also better. Further experiment is found, the control by opposite end amino with side amino, prepares and haveThe amino polysiloxanes with side amino of end, improves the quantity of side amino, finds, along with the raising of the quantity of side amino, agglomeration resistancePerformance first raises and reduces afterwards, so, as the preferred technical scheme of one, the amino polysiloxanes having concurrently with side amino of described endIn the number of end amino and side amino than when being less than 1:5, anti-caking performance is more excellent. Within the scope of this, can controlCaking rate is in 1%. Exceed this scope, because polysiloxanes hydrophily is too strong, caking rate is raise rapidly.
By further embodiment, the present invention is described below.
The preparation method of side amino silicones:
In the 250ml four-hole boiling flask that agitator, reflux condensing tube, thermometer and nitrogen conduit are housed, add prestoxCyclotetrasiloxane and potassium hydroxide, at 130 degrees Celsius, react 2-3 hour under decompression and nitrogen protection, obtains alkali glue.
In the 250ml four-hole boiling flask that agitator, reflux condensing tube, thermometer and nitrogen conduit are housed, add prestoxCyclotetrasiloxane, hexamethyl and siloxanes, alkali glue, dimethyl sulfoxide (DMSO) mix, and are warming up to 80-85 degree Celsius, stir and protectHold 2-3 hour, add N-2-aminoethyl-3-aminopropyl methyl dimethoxysilane, be warming up to 100 degrees Celsius, stir and keepCertain hour. After having reacted, be rapidly heated to 140 degrees Celsius, pressurization removes low-boiling compound, obtains the amino poly-silica of sideAlkane. By controlling the content of N-2-aminoethyl-3-aminopropyl methyl dimethoxysilane, control amino content, anti-by controllingThe time of answering is controlled the molecular weight of side amino silicones.
The preparation method of end amino silicones:
In container, add appropriate water, 3-aminopropyl methyldiethoxysilane and dimethyldimethoxysil,ne or sideThe mixed liquor of amino silicones, room temperature reaction 2 hours, is warming up to 80 degrees Celsius, and decompression stirring reaction 4 hours, obtains colourlessTransparent water hydrolysis products;
In container, add successively hydrolysate, 3-aminopropyl methyldiethoxysilane and catalyst potassium hydroxide,85 degrees Celsius of reaction certain hours, decompression distillation obtains holding amino silicones.
The molecular weight of the dimethyldimethoxysil,ne adding by control or side amino silicones carrys out control end aminoThe molecular weight of polysiloxanes, the content of control 3-aminopropyl methyldiethoxysilane, to control amino content.
Raw material sources:
Octamethylcy-clotetrasiloxane Zhejiang Xinan Chemical Industry Group Co.Ltd
Hexamethyl and siloxanes Zhejiang Xinan Chemical Industry Group Co.Ltd
3-aminopropyl methyldiethoxysilane Nanjing Yu Deheng Fine Chemical Co., Ltd
N-2-aminoethyl-3-aminopropyl methyl dimethoxysilane Nanjing Yu Deheng Fine Chemical Co., Ltd
The peaceful color chemical industry of dimethyldimethoxysil,ne
Close greatly in dimethyl sulfoxide (DMSO) Jinan
Urea Hubei should be changed
Potassium dihydrogen phosphate Shifang City starfish chemical industry
The deep chemical industry of zinc sulfate Hengyang City power
The about molecular weight 2000 more organosilicons of sea, Jiangxi of silicone oil A1
The about molecular weight 3000 more organosilicons of sea, Jiangxi of silicone oil A2
The about molecular weight 5000 more organosilicons of sea, Jiangxi of silicone oil A3
The about molecular weight 20000 more organosilicons of sea, Jiangxi of silicone oil A4
Amino silicones A5 molecular weight 55000, amino content 0.4mmol/g Shanghai Si Li Trade Co., Ltd.
Side amino silicones A6 adopts aforementioned preparation method preparation, and molecular weight is about 30000, amino content1.2mmol/g；
Side amino silicones A7 adopts aforementioned preparation method preparation, and molecular weight is about 40000, amino content 8mmol/g；
Side amino silicones A8 adopts aforementioned preparation method preparation, and molecular weight is about 50000, amino content 3mmol/g；
Side amino silicones A9 adopts aforementioned preparation method preparation, and molecular weight is about 70000, amino content10mmol/g；
End amino silicones A10 adopts aforementioned preparation method's preparation, molecular weight about 30000;
It is amino that amino silicones A11 contains end, adopts aforementioned preparation method's preparation, and molecular weight is about 5000, aminoContent 12mmol/g;
It is amino that amino silicones A12 contains end, adopts aforementioned preparation method's preparation, and molecular weight is about 15000, aminoContent 10mmol/g;
It is amino that amino silicones A13 contains end, adopts aforementioned preparation method's preparation, and molecular weight is about 35000, aminoContent 12mmol/g;
Amino silicones A14 SHIN-ETSU HANTOTAI chemistry KF-8002 contains side chain amino, and molecular weight is about 15000, and amino containsMeasure about 10mmol/g;
Amino silicones A15 SHIN-ETSU HANTOTAI chemistry KF-864 contains side chain amino, and molecular weight is about 20000, amino contentAbout 15mmol/g;
Amino silicones A16 SHIN-ETSU HANTOTAI chemistry KF-8010, contains double-end amino, and molecular weight is about 15000, and amino containsMeasure about 10mmol/g;
The chemistry KF-8001 of amino silicones A17 SHIN-ETSU HANTOTAI, contains double-end amino and pendant amino group, and molecular weight is largeApproximately 15000, the about 10mmol/g of amino content;
The about molecular weight 2000 more organosilicons of sea, Jiangxi of perfluor silicone oil A18
Water-soluble fertile B1 urea 50% potassium dihydrogen phosphate 50%;
Water-soluble fertile B2 urea 50% potassium dihydrogen phosphate 45% zinc sulfate 5%;
Water-soluble fertile B3 urea 40% ammonium di-hydrogen phosphate 35% potassium chloride 25% zinc sulfate 3% trace element 2%.
New soil ecological balance nutrition fertilizer preparation method:
At least one fertilizer is ground to the particle diameter of 1-2 micron, and fully mixes, obtain new soil ecological flatWeighing apparatus nutrition fertilizer powder;
In a container, add new soil ecological balance nutrition fertilizer powder, keep 120 degrees Celsius, and with the side of titrationFormula adds the anticaking agent of new soil ecological balance nutrition fertilizer 0.1-4% quality;
Be stirred well to new soil ecological balance nutrition fertilizer bone dry in a direction.
Caking rate is evaluated:
The same a collection of new soil ecological balance nutrition fertilizer laboratory sample that takes respectively identical weight, adds anti-cakingAgent;
Pack the new soil ecological balance nutrition fertilizer sample that is added with anticaking agent of identical weight into quick knot at onceBlock assembly also uses the normal gravity weights processing to compress, and puts into oneself through regulating the adjusting of 35 degrees Celsius of temperature and humidity 78%In case;
Regulated a temperature every 4-5 hour, the temperature difference changes between 10-60 degree;
After one week, take out sample, adopt the sieve of 3 times of average particle size, weigh the particle passing through and do not lead toThe particle of crossing. Obtain caking rate.
Can find out, the new soil ecological balance nutrition fertilizer that adopts method of the present invention to obtain has good anti-cakingAbility. Meanwhile, in above-described embodiment, due to molecular weight with there is appropriate hydroxyl, in water water-soluble better. Especially containHave in the polysiloxanes of terminal hydroxy group, there is good sprinkling irrigation performance, can not stop up shower nozzle.
Claims (8)
1. new soil ecological balance nutrition fertilizer, described new soil ecological balance nutrition fertilizer is solid particle or powder, novelSoil ecology balanced nutrients fertilizer comprises at least one organic or inorganic fertilizer, it is characterized in that described solid particle or powder tableBread is covered with polysiloxanes, and described polysiloxanes side chain is non-polar group, not containing any polar group, and described solid particleOr powder surface is also coated with the polysiloxanes of amido-containing group, the amino content of the polysiloxanes of described amido-containing group is1.1-1.5mmol/g。
2. new soil ecological balance nutrition fertilizer according to claim 1, is characterized in that, described non-polar group isMethyl, ethyl, halogen alkyl.
3. new soil ecological balance nutrition fertilizer according to claim 1, is characterized in that, described side chain is nonpolar groupGroup, the relative molecular weight that does not contain the polysiloxanes of any polar group is 2000-5000.
4. new soil ecological balance nutrition fertilizer according to claim 1, is characterized in that, described amido-containing group poly-The relative molecular weight of siloxanes is 30000-50000.
5. new soil ecological balance nutrition fertilizer according to claim 1, is characterized in that, described side chain is nonpolar groupGroup is not 1:0.8-1.5 containing the mass ratio of the polysiloxanes of any polar group and the polysiloxanes of amido-containing group.
6. new soil ecological balance nutrition fertilizer according to claim 1, is characterized in that, described amido-containing groupPolysiloxanes is end amino silicones.
7. new soil ecological balance nutrition fertilizer according to claim 1, is characterized in that, described amido-containing groupPolysiloxanes is the amino polysiloxanes having concurrently with side amino of end.
8. new soil ecological balance nutrition fertilizer according to claim 7, is characterized in that, described end amino and side aminoEnd amino in the polysiloxanes having concurrently compares for being less than 1:5 with the number of side amino.
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| CN201410451025.3A CN104151090B (en) | 2014-09-05 | 2014-09-05 | New soil ecological balance nutrition fertilizer |
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| CN201410451025.3A CN104151090B (en) | 2014-09-05 | 2014-09-05 | New soil ecological balance nutrition fertilizer |
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| CN104151090B true CN104151090B (en) | 2016-05-25 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106995329B (en) * | 2016-01-25 | 2021-03-26 | 中国科学院微生物研究所 | Fertilizer synergist and organic fertilizer using same |
| CN106045669A (en) * | 2016-05-30 | 2016-10-26 | 山西华鑫肥业股份有限公司 | Compound fertilizer and preparation method thereof |
| CN107954749B (en) * | 2016-10-18 | 2021-03-30 | 贵州芭田生态工程有限公司 | Polyphosphate-containing nitrogen-phosphorus compound fertilizer and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB908493A (en) * | 1960-02-15 | 1962-10-17 | Shell Res Ltd | Fertilizer compositions |
| GB1119345A (en) * | 1964-11-09 | 1968-07-10 | Fisons Ltd | Treated slag and process for the production thereof |
| IL27703A (en) * | 1966-04-01 | 1971-03-24 | Nu Swift Int Ltd | Non-caking powders and the preparation thereof |
| CN101544521A (en) * | 2008-03-24 | 2009-09-30 | 郭强 | New material and technology for quickly coating compound fertilizer at normal temperature |
| CN102050671A (en) * | 2010-11-10 | 2011-05-11 | 湖北富邦科技股份有限公司 | Anti-caking agent for liquid fertilizer and preparation method thereof |
-
2014
- 2014-09-05 CN CN201410451025.3A patent/CN104151090B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB908493A (en) * | 1960-02-15 | 1962-10-17 | Shell Res Ltd | Fertilizer compositions |
| GB1119345A (en) * | 1964-11-09 | 1968-07-10 | Fisons Ltd | Treated slag and process for the production thereof |
| IL27703A (en) * | 1966-04-01 | 1971-03-24 | Nu Swift Int Ltd | Non-caking powders and the preparation thereof |
| CN101544521A (en) * | 2008-03-24 | 2009-09-30 | 郭强 | New material and technology for quickly coating compound fertilizer at normal temperature |
| CN102050671A (en) * | 2010-11-10 | 2011-05-11 | 湖北富邦科技股份有限公司 | Anti-caking agent for liquid fertilizer and preparation method thereof |
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