CN1521151A - Slow release high efficiency compound fertilizer of thio urea phosphor ammonium kalium and its preparing technology - Google Patents
Slow release high efficiency compound fertilizer of thio urea phosphor ammonium kalium and its preparing technology Download PDFInfo
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- CN1521151A CN1521151A CNA031039324A CN03103932A CN1521151A CN 1521151 A CN1521151 A CN 1521151A CN A031039324 A CNA031039324 A CN A031039324A CN 03103932 A CN03103932 A CN 03103932A CN 1521151 A CN1521151 A CN 1521151A
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- tartar
- vitriolate
- sulfuric acid
- monoammonium phosphate
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Abstract
The present invention relates to slow-releasing high-efficiency composite fertilizer composed with sulfuric acid, urea, potassium sulfate, surfactant, curing agent and monoammonium phosphate and its production process. The production process includes dissolving urea in sulfuric acid of 88 % concentration to obtain strong acid sulfocarbamide solution and adding potassium sulfate, surfactant, curing agent and monoammonium phosphate for one-step addition reaction. The present invention makes it possible to produce composite fertilizer products with different, high, mild and low, NPK contents for different soil and crop kinds, and the production process is simple and low in cost and has no 'three wastes' exhaust.
Description
The present invention relates to utilize sulfuric acid, urea, vitriolate of tartar, tensio-active agent, solidifying agent and monoammonium phosphate synthetic thio urea phosphor ammonium kalium slow release type efficient compound fertilizer (hereinafter to be referred as: " SUPAP " composite fertilizer) and the manufacture craft new technology.
Lot of domestic and foreign composite fertilizer factory, generally the producing and manufacturing technique of Cai Yonging (hereinafter to be referred as: the traditional technology method is): raw and auxiliary material need more through pulverizes, sieve, batching, mechanically mixing, granulation, drying, cooling, finished product sieves and seven～eight procedures such as the packing of product just can be finished the production of compound fertilizer whole process.Because of above-mentioned traditional technology method is being produced compound when fertile, its main nutrient: the batching of nitrogen, phosphorus, potassium equal size change regulate very convenient flexibly, so adopted by numerous production of compound fertilizer factory.But this method exists, and technical process is long, equipment is more, inconvenient maintenance, production energy consumption is higher and the product made mostly is the fast-acting type fertilizer variety.Therefore, behind the plantation crop applying, its fertile nutrient action time is short, nutrient loss is big and cause the relatively low not enough defective of available nutrient utilization ratio of fertilizer.
The object of the present invention is to provide a kind of urea, monoammonium phosphate, vitriolate of tartar etc. of utilizing as the main nutrient element materials of nitrogen, phosphorus, potassium etc. in " SUPAP " composite fertilizers, with the acid acceptor of the main adducts (four urea sulfate calcium) of sulfuric acid when crystallization is solidified in sulphur nutrient element and " SUPAP " composite fertilizer in the acidic leach agent of urea and " SUPAP " composite fertilizer; Time slack solidifying agent when making as " SUPAP " composite fertilizer and anti-caking raising agent with tensio-active agent; Carry out as the curing crystallization skeleton of " SUPAP " composite fertilizer and the alkaline neutraliser of regulating acid-basicity with solidifying agent again that a step addition reaction produces.Its technical process is simple, low cost of manufacture, the three wastes are zero release, and the product fertilizer efficiency is good, and action time is slow, steady, long, and plant recovery of nutrient is high and be applicable to " SUPAP " composite fertilizer and the manufacture craft new technology thereof of various soil and various farm crop.
Above-mentioned purpose of the present invention is to realize by such technical scheme: promptly a kind of sulfuric acid, urea, vitriolate of tartar, tensio-active agent, solidifying agent and monoammonium phosphate synthetic " SUPAP " composite fertilizer of utilizing, it is characterized in that: after adopting the sulfuric acid dissolution urea of 88% ± 2% concentration, obtain the stronger ureasulfuric acid solution of a kind of acidity, add vitriolate of tartar, tensio-active agent, solidifying agent and monoammonium phosphate again, add synthetic reaction by a step and produce.
Above-mentioned synthetic " SUPAP " composite fertilizer of the present invention adopts such Technology to make: promptly use the sulphuric acid soln dissolved urea, after adding vitriolate of tartar and tensio-active agent, add solidifying agent and monoammonium phosphate again, thereby obtain a kind ofly making whole material reaction system be easy to time slack to solidify the pre-solid of crystalline slip shape.
Above-mentioned Technology can be made the principle process flow diagram and be further specified by " SUPAP " composite fertilizer that accompanying drawing provides.
Accompanying drawing is that " SUPAP " of the present invention composite fertilizer makes the principle process flow diagram.
Referring to accompanying drawing: be earlier that 88% ± 2% sulfuric acid puts into that band stirs and the mixing of chuck heating unit changes into reactor with concentration, lead to when being steam heated to 86 ℃ ± 2 ℃, by the required nitrogen in " SUPAP " composite fertilizer that produces, phosphorus, the metering of potassium concn content specification drops into urea, after the stirring and dissolving, when this solution intensification is heated to 90 ℃ ± 2 ℃, input vitriolate of tartar and concentration are 40%～60% surfactant soln, after stirring evenly, drop into solidifying agent and monoammonium phosphate again, and stop to stir after stirring evenly 2～4min rapidly, material reaction temperature in the reactor is controlled between 102～104 ℃, behind the addition reaction about 45～55min, obtain " SUPAP " composite fertilizer new variety of crystalline particle shape.
In the feed intake prescription and the technological process of above-mentioned synthetic " SUPAP " composite fertilizer, most preferred embodiment is: the ingredient proportion of sulfuric acid and urea is a 0.64mol sulfuric acid in the reactant: 3.16～6.66mol urea; The ingredient proportion of urea and vitriolate of tartar is 3.16～6.66mol urea: 1.72～0.69mol vitriolate of tartar; The ingredient proportion of urea and monoammonium phosphate is 3.16～6.66mol urea: 2.61～1.38mol monoammonium phosphate; Tensio-active agent adopts the alkylsulphonic acid sodium solution of 40%～60% concentration, and optimum amount is 2.4% of a reactant total mass; Solidifying agent adopts calcium oxide, and optimum amount is 2%～8% of a reactant total mass.
Be that stable adducts with formed four urea sulfate calcium behind the calcium oxide neutralisation of sulphuric acid urea is the main skeleton that solidifies crystallization in the manufacture craft of the present invention, by introducing good infiltration and the foam properties that the tensio-active agent alkyl sodium sulfonate is had, impel whole material reaction system in addition reaction, to play a kind of good time slack and solidify crystallization and help forming " SUPAP " composite fertilizer that makes under the effect of homogeneous addition reaction.
In the manufacture craft of the present invention, " potassium " nutrient material can also adopt Repone K, and " phosphorus " nutrient material can also adopt diammonium phosphate, coarse whiting and phosphoric acid, and solidifying agent can also adopt lime carbonate and ground phosphate rock, and tensio-active agent can also adopt penetrating agent BX.
The present invention has the following advantages owing to above-mentioned prescription and Manufacturing Techniques:
1, in the manufacturing process of " SUPAP " composite fertilizer, the three wastes are zero-emission, belong to Innovation ﹠ environment type process for cleanly preparing technology.
2, the energy consumption of " SUPAP " composite fertilizer is lower than traditional handicraft method (about 30～40 degree of power consumption/ton), ton product power consumption only 15 About the degree electricity, energy-conservation reaching more than 50% belongs to the high-efficiency and energy-saving type technology.
3, the production equipment of " SUPAP " composite fertilizer is more simplified than traditional handicraft method (needing seven～eight procedures just can finish overall process), only Need mixedization of material addition reaction, granulation and packing of product three process. Therefore, both relatively, process equipment of the present invention can save 60% with On investment, genus equipment is few, utilization ratio of device height and the relatively low innovation technological process of production of operating cost.
4, in " SUPAP " composite fertilizer makes, the regulation range of essential nutrient contents such as nitrogen, phosphorus, potassium is very convenient flexibly, can according to user's needs produce height (NPK 〉=40%), in " SUPAP " complex fertilizer product of (NPK 〉=30%), low (NPK 〉=25%) all size concentration.
5, " SUPAP " of the present invention composite fertilizer, the main composition of main nutrient material such as its nitrogen, phosphorus, potassium is respectively: four stable urea sulfate calcium, two urea mono-calcium phosphates and two urea sulfate potassium adductss; Therefore, can control the release of nitrogen, phosphorus, potassium effectively, reach the lasting needs that fully satisfy in specific growth cycle of crop and the full process of growth main nutrient element such as nitrogen, phosphorus, potassium with this, be rich in plant growth necessary " calcium and sulphur " etc. in addition and measure nutrient element, so " SUPAP " composite fertilizer also has chemical fertilizer quick-acting and the persistent characteristics of farm manure concurrently.
6, " SUPAP " of the present invention composite fertilizer belongs to new fertilizer variety, and its physico-chemical property is better, and the product prevented from caking is convenient to store transportation, and can be satisfied the requirement of mechanized application.
Claims (6)
1, a kind of sulfuric acid, urea, vitriolate of tartar, tensio-active agent, solidifying agent and monoammonium phosphate synthetic thio urea phosphor ammonium kalium slow release type efficient compound fertilizer of utilizing, it is characterized in that: after adopting the sulfuric acid dissolution urea of 88% ± 2% concentration, obtain the stronger ureasulfuric acid solution of a kind of acidity, add vitriolate of tartar, tensio-active agent, solidifying agent and monoammonium phosphate again, produce by a step addition reaction.
2, a kind of manufacture craft technology of utilizing sulfuric acid, urea, vitriolate of tartar, tensio-active agent, solidifying agent and monoammonium phosphate synthetic thio urea phosphor ammonium kalium slow release type efficient compound fertilizer, it is characterized in that: use the sulphuric acid soln dissolved urea, after adding vitriolate of tartar and tensio-active agent, add solidifying agent and monoammonium phosphate again, thereby obtain a kind ofly making whole material reaction system be easy to time slack to solidify the pre-solid of crystalline slip shape.
3, the sulfuric acid that utilizes according to claim 2, urea, vitriolate of tartar, tensio-active agent, the manufacture craft technology of solidifying agent and monoammonium phosphate synthetic thio urea phosphor ammonium kalium slow release type efficient compound fertilizer, it is characterized in that: earlier be that 88% ± 2% sulfuric acid puts into that band stirs and the mixing of chuck heating unit changes into reactor concentration, lead to when being steam heated to 86 ℃ ± 2 ℃, by the required nitrogen in " SUPAP " composite fertilizer that produces, phosphorus, the metering of potassium concn content specification drops into urea, after the stirring and dissolving, when this solution intensification is heated to 90 ℃ ± 2 ℃, input vitriolate of tartar and concentration are 40%～60% surfactant soln, after stirring evenly, drop into solidifying agent and monoammonium phosphate again, and stop to stir after stirring evenly 2～4min rapidly, material reaction temperature in the reactor is controlled between 102～104 ℃, behind the addition reaction about 45～55min, obtain " SUPAP " composite fertilizer new variety of crystalline particle shape.
4, according to the manufacture craft technology of claim 2,3 described thio urea phosphor ammonium kalium slow release type efficient compound fertilizers, it is characterized in that: the ingredient proportion of sulfuric acid and urea is a 0.64mol sulfuric acid in the reactant: 3.16～6.66mol urea; The ingredient proportion of urea and vitriolate of tartar is 3.16～6.66mol urea: 1.72～0.69mol vitriolate of tartar; The ingredient proportion of urea and monoammonium phosphate is 3.16～6.66mol urea: 2.61～1.38mol monoammonium phosphate; Tensio-active agent adopts the alkylsulphonic acid sodium solution of 40%～60% concentration, and optimum amount is 2.4% of a reactant total mass; Solidifying agent adopts calcium oxide, and the optimum amount scope is 2%～8% of a reactant total mass.
5, the manufacture craft technology of utilizing sulfuric acid, urea, vitriolate of tartar, tensio-active agent, solidifying agent and monoammonium phosphate synthetic thio urea phosphor ammonium kalium slow release type efficient compound fertilizer according to claim 2, it is characterized in that: " potassium " nutrient material can also adopt Repone K, and " phosphorus " nutrient material can also adopt diammonium phosphate, coarse whiting and phosphoric acid.
6, the manufacture craft technology of utilizing sulfuric acid, urea, vitriolate of tartar, tensio-active agent, solidifying agent and monoammonium phosphate synthetic thio urea phosphor ammonium kalium slow release type efficient compound fertilizer according to claim 2, it is characterized in that: tensio-active agent can also adopt penetrating agent BX, and solidifying agent can also adopt lime carbonate and ground phosphate rock.
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| CNA031039324A CN1521151A (en) | 2003-02-11 | 2003-02-11 | Slow release high efficiency compound fertilizer of thio urea phosphor ammonium kalium and its preparing technology |
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| CNA031039324A CN1521151A (en) | 2003-02-11 | 2003-02-11 | Slow release high efficiency compound fertilizer of thio urea phosphor ammonium kalium and its preparing technology |
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| CN1521151A true CN1521151A (en) | 2004-08-18 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102503626A (en) * | 2011-10-13 | 2012-06-20 | 贵州川恒化工有限责任公司 | Water-soluble fertilizer special for alkaline soil and its preparation method |
| CN103159550A (en) * | 2012-12-26 | 2013-06-19 | 施可丰化工股份有限公司 | Environment-friendly slow-release sulfur-based nitrogen potassium compound fertilizer |
| CN103159549A (en) * | 2012-12-26 | 2013-06-19 | 施可丰化工股份有限公司 | Preparation method of slow-release long-acting sulfur-based nitrogen potassium compound fertilizer |
| CN103183560A (en) * | 2013-05-02 | 2013-07-03 | 付增传 | Production process of compound urea sulfate potassium ammoniated fertilizer |
| CN103288524A (en) * | 2012-03-02 | 2013-09-11 | 河南省昊利达化工有限公司 | Device for preparing urea sulfate compound fertilizer |
| CN107986854A (en) * | 2017-11-24 | 2018-05-04 | 广西宝树金花茶有限公司 | A kind of Camellia nitidissima quickly breeding compound fertilizer |
| CN108558556A (en) * | 2018-07-04 | 2018-09-21 | 郑州大学 | A method of preparing particle urea groups composite fertilizer with urea-sulfuric acid decomposing rock phosphate with hydrogen |
-
2003
- 2003-02-11 CN CNA031039324A patent/CN1521151A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102503626A (en) * | 2011-10-13 | 2012-06-20 | 贵州川恒化工有限责任公司 | Water-soluble fertilizer special for alkaline soil and its preparation method |
| CN102503626B (en) * | 2011-10-13 | 2014-09-24 | 贵州川恒化工有限责任公司 | Water-soluble fertilizer special for alkaline soil and its preparation method |
| CN103288524A (en) * | 2012-03-02 | 2013-09-11 | 河南省昊利达化工有限公司 | Device for preparing urea sulfate compound fertilizer |
| CN103159550A (en) * | 2012-12-26 | 2013-06-19 | 施可丰化工股份有限公司 | Environment-friendly slow-release sulfur-based nitrogen potassium compound fertilizer |
| CN103159549A (en) * | 2012-12-26 | 2013-06-19 | 施可丰化工股份有限公司 | Preparation method of slow-release long-acting sulfur-based nitrogen potassium compound fertilizer |
| CN103183560A (en) * | 2013-05-02 | 2013-07-03 | 付增传 | Production process of compound urea sulfate potassium ammoniated fertilizer |
| CN107986854A (en) * | 2017-11-24 | 2018-05-04 | 广西宝树金花茶有限公司 | A kind of Camellia nitidissima quickly breeding compound fertilizer |
| CN108558556A (en) * | 2018-07-04 | 2018-09-21 | 郑州大学 | A method of preparing particle urea groups composite fertilizer with urea-sulfuric acid decomposing rock phosphate with hydrogen |
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