CN1163448C - Fertilizer for spray or drip irrigation and its preparing process - Google Patents
Fertilizer for spray or drip irrigation and its preparing process Download PDFInfo
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- CN1163448C CN1163448C CNB991230973A CN99123097A CN1163448C CN 1163448 C CN1163448 C CN 1163448C CN B991230973 A CNB991230973 A CN B991230973A CN 99123097 A CN99123097 A CN 99123097A CN 1163448 C CN1163448 C CN 1163448C
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- drip irrigation
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Abstract
The present invention relates to a fertilizer for sprinkling and drop irrigation, and a preparation method thereof. The fertilizer is prepared from components of the following weight ratio: 15% to 60% of ammonium phosphate, 6% to 12% of potassium sulfate and 30% to 75% of urea. In a preparation method for intermediate product ammonium phosphate, ammonium phosphate is a product prepared by the way that phosphoric acid with a concentration of 60% to 70% chemically reacts with liquid ammonia or liquid ammonia and ammonium bicarbonate; intermediate product potassium sulfate is a product prepared by the way that sulphuric acid with a concentration of 70% to 80% reacts with potassium chloride and liquid ammonia. The intermediate products of ammonium phosphate and potassium sulfate are evenly mixed with urea proportionally to obtain a final product. The fertilizer for sprinkling and drop irrigation has the advantages of low cost, good water solubility, fertilizer application accompanied by water, and high utilization rate of the fertilizer, and can be widely used for sprinkling and drop irrigation operation.
Description
The present invention relates to a kind of fertilizer for spray or drip irrigation and its production method, specifically is exactly to utilize industrial waste mud phosphoric acid, dilute sulphuric acid etc. to produce fertilizer for spray or drip irrigation for raw material, also relates to its production method simultaneously.
Farm crop adopt the spray drip irrigation to become the main irrigation technique measure of arid area agricultural sustainable development, yet the spray drip irrigation technique must be supporting with corresponding fertilizer practice, could improve the specific absorption of crop to nutriment, otherwise, can cause cost up, chemical fertilizer utilization ratio is low.Spray fertigation technology must have suitable fertilizer variety, has chemical fertilizer now except that nitrogenous fertilizer, phosphorus, potash fertilizer poorly water-soluble, and impurity is many, and is both uneconomical, easily stops up shower nozzle again.Simultaneously, employed raw materials cost is higher in the production process of existing chemical fertilizer, and the price of product is also corresponding higher.
In order to overcome above-mentioned defective, the object of the present invention is to provide a kind of with low cost, good water solubility, fertilizer for spray or drip irrigation that chemical fertilizer utilization ratio is high and production method thereof, it can effectively utilize relevant chemical spent material, produces the chemical fertilizer that is applicable to spray drip irrigation operation.
Fertilizer for spray or drip irrigation of the present invention, press column weight amount per-cent by following component and form:
Ammonium phosphate 15～60%, vitriolate of tartar 6～12%, urea 30～75%, wherein, ammonium phosphate is that concentration is the chemical reaction product that 60～70% phosphoric acid and liquefied ammonia or liquefied ammonia add bicarbonate of ammonia; Vitriolate of tartar is the sulfur waste acid of concentration 70～80% and the resultant of reaction of Repone K and liquefied ammonia.
Above-mentioned fertilizer for spray or drip irrigation, said phosphoric acid is for producing the mud phosphoric acid in the yellow phosphorus process; Sulfuric acid is the sulfur waste acid after being fuming in the synthetic detergent powder production technique.
Above-mentioned fertilizer for spray or drip irrigation, the concentration of said liquefied ammonia are 99%; It is that the weight ratio of liquefied ammonia and bicarbonate of ammonia is 3: 8 that described liquefied ammonia adds bicarbonate of ammonia.
Above-mentioned fertilizer for spray or drip irrigation, said Repone K purity is 93～97%, it and vitriolic weight ratio are 1: 0.6～0.8.
The production method of fertilizer for spray or drip irrigation the steps include:
(1) earlier phosphoric acid and liquefied ammonia, bicarbonate of ammonia are reacted, generate ammonium phosphate; Repone K and sulfuric acid reaction are generated vitriolate of tartar; Wherein,
1. the preparation method of ammonium phosphate is: earlier phosphoric acid is metered in the reactor, stir and inject liquefied ammonia, when the reaction solution pH value reaches 5.0～5.5, stop to annotate ammonia, reaction is finished, slurry is put into the crystallizer crystallization, and magma separates with whizzer, and drying (moisture content＜4%) promptly gets intermediate product ammonium phosphate;
2. the vitriolate of tartar preparation process is that sulfuric acid and Repone K, liquefied ammonia are carried out chemical reaction, by molten allotment of labor's preface, form and put operation and conciliate and to form operation, thereby obtains the intermediate product vitriolate of tartar;
(2) use the intermediate product ammonium phosphate, vitriolate of tartar and the urea that are generated uniform mixing in proportion again;
(3) mixture in (2) carried out quantitatively, pack, promptly get product of the present invention.
Below provide embodiments of the invention:
(1) fertilizer for spray or drip irrigation composite formula embodiment (seeing Table)
Table one: fertilizer for spray or drip irrigation composite formula embodiment table look-up
In the table one, sequence number be 2,4,6 embodiment be respectively this fertilizer for spray or drip irrigation in farm crop early stages the best proportioning with the middle and later periods.In the various embodiments described above, urea wherein can be that the basis metering substitutes by nitrogen content with ammonium sulfate.
(2) in conjunction with the embodiments the fertilizer for spray or drip irrigation production method is done to describe in detail with reference to accompanying drawing:
Fig. 1 is fertilizer for spray or drip irrigation technological process of production figure of the present invention.
1. the preparation method of intermediate product ammonium phosphate is, to produce 1 ton of ammonium phosphate, selects raw material:
60% phosphatase 11 .5 ton or 70% phosphatase 11 .3 ton;
0.32 ton in 0.18 ton in 99% liquefied ammonia or 0.12 ton+bicarbonate of ammonia of liquefied ammonia;
Step is: earlier phosphoric acid is metered in the reactor, stirs and inject liquefied ammonia, when the reaction solution pH value reaches 5.0, stop to annotate ammonia, reaction is finished, and then slurry is put into the crystallizer crystallization, magma separates with whizzer, and drying (moisture content＜4%) promptly gets ammonium phosphate.
2. intermediate product vitriolate of tartar preparation process comprises molten allotment of labor's preface, forms and put operation and conciliate and to form operation, to produce 1 ton of vitriolate of tartar, selects raw material:
0.8 ton in 75% sulfuric acid;
0.91 ton in 95% Repone K;
0.23 ton in 99% liquefied ammonia;
4.38 kilograms of association agent
Molten allotment of labor's preface is that potassium sulfate mother liquid is evacuated to test tank with vacuum, puts into the molten jar of joining through metering and starts stirring, and drop into Repone K and water, is warming up to 60 ℃ and continues to stir, and filters by plate-and-frame filter press with acid proof pump then, and it is stand-by that filtrate enters the molten groove of joining;
Forming and putting operation is with the association agent after metering, is evacuated to form with vacuum and puts in the jar, then molten dosing is evacuated to form and puts jar, again sulfuric acid is slowly put into to form under fully stirring and put jar, and continue to stir, keep temperature of reaction, stop to stir, slurry is put into the decant bucket.Again with the K2SO4 solution in the decant bucket with centrifugal pumping to crystallizer, crystallization under agitation, magma separates with whizzer, drying obtains potassium product.
Separating and forming operation is to use the ammonium chloride solution and the reaction of association agent hydrochloride of ammonia, and the association agent is regenerated, and recycles, simultaneously side product sodium chloride.
(2) use the intermediate product ammonium phosphate, vitriolate of tartar and the urea that are generated in the given ratio uniform mixing of table one again.
(3) mixture in (2) carried out quantitatively, pack, promptly get the finished product of the present invention.
In the production method of above-mentioned fertilizer for spray or drip irrigation, selected sulfuric acid is the sulfur waste acid after being fuming in the synthetic detergent powder production technique; Selected phosphoric acid is the mud phosphoric acid in the phosphorus production technology.Above-mentioned raw materials is a chemical spent material, and low price, thereby low cost product of the present invention have solved the utilization of waste material problem simultaneously, have alleviated environmental protection pressure.
Among each embodiment among the present invention, urea can be basic equivalent substitution with nitrogen content with ammonium sulfate, in actual application, can obtain effect of the present invention equally.
The phase was adopted three types of A, B, C respectively before, during and after fertilizer for spray or drip irrigation of the present invention provided farm crop: (seeing Table two)
Table two: the crop growth phase needs the fertilizer for spray or drip irrigation type list
The using method of fertilizer for spray or drip irrigation of the present invention is: press earlier crop area, estimated output, regulation of fertilizer requirement and soil supplying nutrient capability, determine total fertilizer requirement, determine each phase N, P, K requirement according to crop different growing regulation of fertilizer requirement, the irrigation frequency that contrasts each breeding time is determined the injected volume of the fertilizer for spray or drip irrigation of respective type, general 30～35 kilograms/mu of the fertilizer for spray or drip irrigation of the present invention that use, can satisfy in the vegetative period of whole crop and to use fertile requirement, thereby guarantee the high crop yield stable yields.Before the operation of spray drip irrigation is carried out, should add container of fertilizer by fertilizer, start feed water valve then, with the water fertilising, water and fertilizer synchronization, its solution directly enters crop root through container → pipeline → spray water dropper.
Can carry out soil testing and fertilizer recommendation for Different Crop, different soils, be applicable to crops such as cotton, wheat, corn, beet, melon and fruit, vegetables.
The product of above-mentioned fertilizer for spray or drip irrigation is white mealy crystal, and water absorbability is strong, and is soluble in water, and the aqueous solution is colourless, and pH value is 4.4～6.0, can with various in, acid agrichemical, little fertilizer, growth regulator mix use.
After testing, fertilizer for spray or drip irrigation of the present invention has following characteristics:
(1). the fertilizer for spray or drip irrigation product water-soluble＞99%;
(2). use fertilizer for spray or drip irrigation to save chemical fertilizer cost accounting＞30% with the water droplet spray fertilising than conventional fertilizer application method;
(3). fertilizer for spray or drip irrigation is used for spray drip irrigation crops can improve chemical fertilizer utilization ratio＞5%.
Claims (5)
1, a kind of fertilizer for spray or drip irrigation, it is pressed column weight amount proportioning by following component and forms:
Ammonium phosphate 15～60%, vitriolate of tartar 6～12%, urea 30～75%, wherein, ammonium phosphate is that concentration is the chemical reaction product that 60～70% phosphoric acid and liquefied ammonia or liquefied ammonia add bicarbonate of ammonia; Vitriolate of tartar is the sulfuric acid of concentration 70～80% and the resultant of reaction of Repone K and liquefied ammonia; Wherein:
(1) phosphoric acid is for producing the mud phosphoric acid in the yellow phosphorus process;
(2) sulfuric acid is the sulfur waste acid after being fuming in the synthetic detergent powder production technique.
2, fertilizer for spray or drip irrigation as claimed in claim 1, the concentration of said liquefied ammonia are 99%.
3, it is that the weight ratio of liquefied ammonia and bicarbonate of ammonia is 3: 8 that fertilizer for spray or drip irrigation as claimed in claim 1 or 2, described liquefied ammonia add bicarbonate of ammonia.
4, fertilizer for spray or drip irrigation as claimed in claim 1, said Repone K purity is 93～97%, it and vitriolic weight ratio are 1: 0.6～0.8.
5, the method for the described fertilizer for spray or drip irrigation of a kind of production claim 1 the steps include:
(1) earlier phosphoric acid and liquefied ammonia or liquefied ammonia are added bicarbonate of ammonia generation chemical reaction, generate ammonium phosphate; Repone K and sulfuric acid reaction are generated vitriolate of tartar; Wherein,
1. the preparation method of ammonium phosphate is: earlier phosphoric acid is metered in the reactor, stir the mixture that injection liquefied ammonia or liquefied ammonia add bicarbonate of ammonia, when the reaction solution pH value reaches 5.0～5.5, stop to annotate ammonia, reaction is finished, slurry is put into the crystallizer crystallization, and magma separates with whizzer, drying when moisture content＜4% intermediate product ammonium phosphate;
2. the vitriolate of tartar preparation process is that sulfuric acid and Repone K, liquefied ammonia are carried out chemical reaction, by molten allotment of labor's preface, form and put operation and conciliate and to form operation, thereby obtains the intermediate product vitriolate of tartar;
(2) use the intermediate product ammonium phosphate, vitriolate of tartar and the urea that are generated uniform mixing in proportion again;
(3) mixture in above-mentioned (2) carried out quantitatively, pack, promptly get the finished product fertilizer for spray or drip irrigation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB991230973A CN1163448C (en) | 1999-12-07 | 1999-12-07 | Fertilizer for spray or drip irrigation and its preparing process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB991230973A CN1163448C (en) | 1999-12-07 | 1999-12-07 | Fertilizer for spray or drip irrigation and its preparing process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1298850A CN1298850A (en) | 2001-06-13 |
| CN1163448C true CN1163448C (en) | 2004-08-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB991230973A Expired - Fee Related CN1163448C (en) | 1999-12-07 | 1999-12-07 | Fertilizer for spray or drip irrigation and its preparing process |
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Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100407898C (en) * | 2005-06-09 | 2008-08-06 | 北京海依飞科技有限公司 | An agricultural irrigating and fertilizing method |
| CN1300068C (en) * | 2005-10-11 | 2007-02-14 | 山东省农业科学院土壤肥料研究所 | Whole nutrient solid fertilizer for drip irrigation and its prepn |
| CN103553750B (en) * | 2013-11-14 | 2015-09-09 | 甘肃省农业科学院土壤肥料与节水农业研究所 | A kind of Corn acidic solid drip irrigation fertilizer and preparation method thereof |
| CN104030762B (en) * | 2014-06-30 | 2016-06-08 | 新疆农垦科学院 | A kind of drip irrigation cotton is special containing carbon element water-soluble fertilizer |
| CN104030761B (en) * | 2014-06-30 | 2016-02-10 | 新疆农垦科学院 | A kind of drip irrigation paddy rice is special containing carbon element water-soluble fertilizer |
| CN104030763B (en) * | 2014-06-30 | 2016-04-27 | 新疆农垦科学院 | A kind of drip irrigation soybean is special containing carbon element water-soluble fertilizer |
| CN104030759B (en) * | 2014-06-30 | 2016-06-08 | 新疆农垦科学院 | A kind of drip irrigation Processed tomato is special containing carbon element water-soluble fertilizer |
| CN104030760B (en) * | 2014-06-30 | 2016-04-27 | 新疆农垦科学院 | A kind of drip irrigation corn is special containing carbon element water-soluble fertilizer |
| CN104163710A (en) * | 2014-08-01 | 2014-11-26 | 上海市农业科学院 | Fully-water-soluble spraying and drip irrigation formula fertilizer special for green vegetables and application of fully-water-soluble spraying and drip irrigation formula fertilizer |
| CN110483126A (en) * | 2019-09-20 | 2019-11-22 | 瓮福达州化工有限责任公司 | A kind of multielement compound phosphatic fertilizer and preparation method thereof |
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1999
- 1999-12-07 CN CNB991230973A patent/CN1163448C/en not_active Expired - Fee Related
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| CN1298850A (en) | 2001-06-13 |
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