CN101348401A - Preparation of calcium ammonium nitrate coated fertilizer - Google Patents
Preparation of calcium ammonium nitrate coated fertilizer Download PDFInfo
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- CN101348401A CN101348401A CNA2008100793351A CN200810079335A CN101348401A CN 101348401 A CN101348401 A CN 101348401A CN A2008100793351 A CNA2008100793351 A CN A2008100793351A CN 200810079335 A CN200810079335 A CN 200810079335A CN 101348401 A CN101348401 A CN 101348401A
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Abstract
The invention relates to a preparation method of a fertilizer, in particular to a preparation method of a calcium ammonium nitrate coated fertilizer. The preparation method solves the problem that the prior calcium ammonium nitrate does not have a coated product, and comprises the following steps that raw materials for preparing the coated fertilizer comprises 60 to 70 portions of nitric acid, 50 to 60 portions of calcium carbonate, 3 to 8 portions of ammonium nitrate, silicon dioxide, sulphur and borax; and the raw materials can be made into the coated fertilizer after granulation and coating. Under the treatment of the preparation method, the growth of rice seedling is better than that of rice seedling under urea treatment; moreover, rice seedling also has high compactness and harmonious root cap biomass accumulation proportion. In addition, field experiments also show that the disease resistance of treated rice seedling can be greatly improved during later growth and development; meanwhile, the calcium ammonium nitrate coated fertilizer is better than urea, and the difference between the yield of treated rice and the yield of rice treated by urea is significant.
Description
Technical field
The present invention relates to a kind of preparation method of fertilizer, be specially a kind of preparation method of calcium ammonium nitrate coated fertilizer.
Background technology
Calcium ammonium nitrate is a kind of new and effective compound manure of nitrogenous and quick-acting calcium, and its fertilizer efficiency is fast, and the characteristics of quick benefit nitrogen are arranged, and has wherein increased calcium and magnesium, and nutrient is more comprehensive than ammonium nitrate, and plant can directly absorb; This product belongs to neutral fertilizer, and the physiological acidity degree is little, and acid soil is had improving effect.The back potential of hydrogen that is manured into soil is little, can not cause soil compaction, can make soil become loose.Can reduce simultaneously the concentration of active aluminum, reduce active phosphorus fixation, and the water-soluble calcium that provides, the resistibility of plant can be improved to disease.Can impel beneficial microorganism activity in the soil.Planting economic crops, during farm crop such as flowers, fruit, vegetables, but this fertilizer kind of blooming period prolonging is impelled root, stem, leaf normal growth, guarantees that fruit color is bright-coloured, increases fruit sugar part.It is a kind of green fertilizer of high-efficiency environment friendly.Be applicable to multiple soil and crop, be widely used in the food crop of greenhouse and field planting, cash crop, flowers, fruit tree, vegetables etc.It directly is plant absorbing that nitric nitrogen in the calcium ammonium nitrate need not to transform and be dissolved in rapidly in the water in soil earlier.Be applicable to base manure, seed manure and topdressing.Production technology of fertilizer is introduced at first in the U.S. in this, but finds that in use there are some problems in the chemical fertilizer that former technology is produced, and for example fertilizer efficiency is single, soil hardens easily, nutrient runs off easily and can not be with other application of mixed fertilizers etc.
In the prior art careless mistake the method for multiple fertilizer dressing, for example: number of patent application is the manufacture method of the humic acids granular compound fertilizer material of 200710087434X.Utilizing element sulphur is the technology of current comparative maturity to fertilizer bag grain.Can play the loss that has reduced nutritive element by element sulphur to some fertilizer dressing, make long-term, the stable effects such as release of fertilizer efficiency.
Summary of the invention
The preparation method that the present invention provides a kind of calcium ammonium nitrate coated fertilizer in order to solve existing calcium ammonium nitrate the problem that coated product occurs also not to be arranged.
The present invention is realized that by following technical scheme a kind of preparation method of calcium ammonium nitrate coated fertilizer may further comprise the steps: raw material is 60 ~ 70 parts of nitric acid, 50 ~ 60 parts of lime carbonate, 3 ~ 8 parts of ammonium nitrate, silicon-dioxide, sulphur, borax,
Method is at first nitric acid, lime carbonate, ammonium nitrate hybrid reaction to be generated calcium ammonium nitrate; and by the sponging granulator granulation; and then add silicon-dioxide, the sulphur that accounts for calcium ammonium nitrate finished product total amount 0.5-1.5% account for calcium ammonium nitrate finished product total amount 1-3%, the borax that accounts for calcium ammonium nitrate finished product total amount 0.1-0.5% carries out spray coating, last cooling packing finished product on granulating disc.
Calcium ammonium nitrate particulate production method is: select rare nitric acid for use; its concentration is 25%-30%; lime carbonate is crushed to 10 orders after crusher in crushing stand-by; the Paris white of getting ready is added in the reactor; rare nitric acid with 25%-30% neutralizes with it under ebullient temperature or state; the gained neutralizer filters; clear liquor is squeezed into vaporizer by pump; make clear liquor be evaporated to 40-43BE-, the clear liquid after to be evaporated enters the outfit groove, adds ammonium nitrate solution and obtains calcium ammonium nitrate solution; then calcium ammonium nitrate solution is carried out the evaporation second time; vaporization temperature is increased to 150-180 ℃, enters the sponging granulator granulation, and particulate product enters sifting machine again.
The resulting product of the present invention applies that crop can make well developed root system, plant is vigorous, the stem stalk is sturdy, full grains, best in quality, improves crop 15-20% output.I use in countries such as Korea S, Japan, Vietnam, Burma by company's calcium ammonium nitrate coated fertilizer for many years, facts have proved that this fertilizer is a kind of special efficacy high yield fertilizer, and am subjected to consistent favorable comment abroad.Test through my company Liaoning, Jiangsu at home, effect is extremely remarkable.This product is widely used in crop, vegetables, fruit.Below be example with regard to Liaoning paddy growth situation, the fertilizer efficiency of its product is described in detail in detail, the calcium ammonium nitrate product is in the experiment situation of Jinzhou, Liaoning ditch group.
Example: calcium ammonium nitrate sulphur coated fertilizer of the present invention and urea fertilizer contrast
Use nitrogen of the present invention 〉=28%, calcium oxide 〉=12%, boron 〉=0.3% and conventional urea are tested contrast in rice in north china demonstration base three periods in paddy rice.
Experimental field soil type is the saline alkali meadow chernozemic soil, and base manure is unified application of organic fertilizers 15kg/ mu, common composite fertilizer 10kg/ mu, diammonium phosphate 5kg/ mu.
Test is in the Jinzhou, Liaoning, and Panjin carries out the multiple spot test, avoids randomness.
Fertilization time and fertilising situation:
| Fertilization time | Period of seedling establishment (2008.5.29) | The leaflet phase (2008.6.20) | Florescence (2008.8.10) |
| It is fertile to use experiment | 10kg/ mu | 15kg/ mu | 6kg/ mu |
| Use urea | 10kg/ mu | 20kg/ mu | 10kg/ mu |
Test results and analysis:
1.1 period of seedling establishment fertilising back contrast
Period of seedling establishment evaluation index: one. the root system development.Normal root system development is the key of quality of turning green after the rice transplanting, relates to expanding area, average root length etc.Two. the weightening finish situation.After turning green, rice shoot absorbs and nourishes and grows, and growth can reflect the amount of nutrition.
Use one week of back
| Index | Expanding area cmxcm | The long cm of average root | The long cm of the longest root | Expansion radius cm | Weightening finish g | Plant shoot survival percent % |
| It is fertile to use experiment | 10x10 | 9 | 18 | 7 | 120 | 100 |
| Use urea | 9x9 | 8 | 15 | 5 | 96 | 99 |
Test shows: rice shoot after the present invention handles, well developed root system, rice shoot is healthy and strong, color is dark green, it is vigorous to grow, assimilation effect is also good than urea.Because the existence of sulphur dressing is arranged, crop absorbs comprehensively, fast.In addition, owing to the preventive and therapeutic effect of sulphur to germ, illness easily takes place early stage rice shoot such as some rice rots of experimental plot, bakanae disease does not almost have.
1.2 leaflet phase fertilising contrast
Evaluation index: effective leaflet rate.How many leaflet rates is related to the florescence spike of rice, also is related to output in the future.Effectively leaflet mainly is the sturdy leaflet of growth for blooming into the leaflet of fringe in all leaflets.
| Index | The average mark number of sheets/bunch | Effectively divide the number of sheets | Effective leaflet rate % |
| It is fertile to use experiment | 20 | 18 | 90 |
| Use urea | 18 | 104 | 74 |
Comparing result shows that fertilizer efficiency of the present invention is powerful, totally divides the number of sheets many, and effectively leaflet rate height is laid good basis for increasing production in the future.
1.3 rice yield variance analysis
| Variance factor | Sum of squares | Degree of freedom | Variance | The F value | F 0.05 | F 0.01 |
| Between district's group | 1438.167 | 2 | 719.0833 | 14.39 | 99.30 | 19.33 |
| Between processing | 53764.92 | 3 | 17921.6 | 358.632 | 27.91 | 8.94 |
| Error | 299.8333 | 6 | 49.9722 | |||
| Sum | 55502.92 | 11 |
Therefore the present invention handles down paddy rice seedling growing way and is better than urea processing, rice seedling circularity height, root cap biomass accumulation eurythmy.Field test also shows, disease resistance strengthens greatly in rice seedling the growing afterwards after treatment, and the present invention is better than urea, the rice yield after the processing with use urea and compare significant difference.
Embodiment
Embodiment 1: a kind of preparation method of calcium ammonium nitrate coated fertilizer may further comprise the steps: raw material is 60 parts of nitric acid, 60 parts of lime carbonate, 3 parts of ammonium nitrate, silicon-dioxide, sulphur, borax,
The umber here can be mass units such as ton, kilogram.
Method is at first nitric acid, lime carbonate, ammonium nitrate hybrid reaction to be generated calcium ammonium nitrate; and by the sponging granulator granulation; and then add silicon-dioxide, the sulphur that accounts for calcium ammonium nitrate finished product total amount 0.5% account for calcium ammonium nitrate finished product total amount 3%, the borax that accounts for calcium ammonium nitrate finished product total amount 0.5% carries out spray coating, last cooling packing finished product on granulating disc.
Calcium ammonium nitrate particulate production method is: select rare nitric acid for use; its concentration is 25%-30%; lime carbonate is crushed to 10 orders after crusher in crushing stand-by; the Paris white of getting ready is added in the reactor; rare nitric acid with 25%-30% neutralizes with it under the ebullient temperature; the gained neutralizer filters; clear liquor is squeezed into vaporizer by pump; make clear liquor be evaporated to 40-43BE-, the clear liquid after to be evaporated enters the outfit groove, adds ammonium nitrate solution and obtains calcium ammonium nitrate solution; then calcium ammonium nitrate solution is carried out the evaporation second time; vaporization temperature is increased to 150-180 ℃, enters the sponging granulator granulation, and particulate product enters the sifting machine screening again.
Embodiment 2: a kind of preparation method of calcium ammonium nitrate coated fertilizer may further comprise the steps: raw material is 70 parts of nitric acid, 50 parts of lime carbonate, 8 parts of ammonium nitrate, silicon-dioxide, sulphur, borax,
Method is at first nitric acid, lime carbonate, ammonium nitrate hybrid reaction to be generated calcium ammonium nitrate; and by the sponging granulator granulation; and then add silicon-dioxide, the sulphur that accounts for calcium ammonium nitrate finished product total amount 1.5% account for calcium ammonium nitrate finished product total amount 1%, the borax that accounts for calcium ammonium nitrate finished product total amount 0.1% carries out spray coating, last cooling packing finished product on granulating disc.
Calcium ammonium nitrate particulate production method is: select rare nitric acid for use; its concentration is 25%-30%; lime carbonate is crushed to 10 orders after crusher in crushing stand-by; the Paris white of getting ready is added in the reactor; rare nitric acid with 25%-30% neutralizes with it under the ebullient temperature; the gained neutralizer filters; clear liquor is squeezed into vaporizer by pump; make clear liquor be evaporated to 40-43BE-, the clear liquid after to be evaporated enters the outfit groove, adds ammonium nitrate solution and obtains calcium ammonium nitrate solution; then calcium ammonium nitrate solution is carried out the evaporation second time; vaporization temperature is increased to 150-180 ℃, enters the sponging granulator granulation, and particulate product enters the sifting machine screening again.
Embodiment 3: a kind of preparation method of calcium ammonium nitrate coated fertilizer may further comprise the steps: raw material is 66 parts of nitric acid, 56 parts of lime carbonate, 5 parts of ammonium nitrate, silicon-dioxide, sulphur, borax,
Method is at first nitric acid, lime carbonate, ammonium nitrate hybrid reaction to be generated calcium ammonium nitrate; and by the sponging granulator granulation; and then add silicon-dioxide, the sulphur that accounts for calcium ammonium nitrate finished product total amount 1% account for calcium ammonium nitrate finished product total amount 2%, the borax that accounts for calcium ammonium nitrate finished product total amount 0.3% carries out spray coating, last cooling packing finished product on granulating disc.
Calcium ammonium nitrate particulate production method is: select rare nitric acid for use; its concentration is 25%-30%; lime carbonate is crushed to 10 orders after crusher in crushing stand-by; the Paris white of getting ready is added in the reactor; rare nitric acid with 25%-30% neutralizes with it under ebullient temperature or state; the gained neutralizer filters; clear liquor is squeezed into vaporizer by pump; make clear liquor be evaporated to 40-43BE-, the clear liquid after to be evaporated enters the outfit groove, adds ammonium nitrate solution and obtains calcium ammonium nitrate solution; then calcium ammonium nitrate solution is carried out the evaporation second time; vaporization temperature is increased to 150-180 ℃, enters the sponging granulator granulation, and particulate product enters the sifting machine screening again.
Claims (3)
1, a kind of preparation method of calcium ammonium nitrate coated fertilizer is characterized in that: may further comprise the steps: raw material is 60 ~ 70 parts of nitric acid, 50 ~ 60 parts of lime carbonate, 3 ~ 8 parts of ammonium nitrate, silicon-dioxide, sulphur, borax,
Method is at first nitric acid, lime carbonate, ammonium nitrate hybrid reaction to be generated calcium ammonium nitrate; and by the sponging granulator granulation; and then add silicon-dioxide, the sulphur that accounts for calcium ammonium nitrate finished product total amount 0.5-1.5% account for calcium ammonium nitrate finished product total amount 1-3%, the borax that accounts for calcium ammonium nitrate finished product total amount 0.1-0.5% carries out spray coating, last cooling packing finished product on granulating disc.
2, the preparation method of calcium ammonium nitrate coated fertilizer according to claim 1 is characterized in that: raw material is 66 parts of nitric acid, 56 parts of lime carbonate, 5 parts of ammonium nitrate, silicon-dioxide, sulphur, borax,
Method is at first nitric acid, lime carbonate, ammonium nitrate hybrid reaction to be generated calcium ammonium nitrate; and by the sponging granulator granulation; and then add silicon-dioxide, the sulphur that accounts for calcium ammonium nitrate finished product total amount 1% account for calcium ammonium nitrate finished product total amount 2%, the borax that accounts for calcium ammonium nitrate finished product total amount 0.3% carries out spray coating, last cooling packing finished product on granulating disc.
3; the preparation method of calcium ammonium nitrate coated fertilizer according to claim 1; it is characterized in that: calcium ammonium nitrate particulate production method is: select rare nitric acid for use; its concentration is 25%-30%; lime carbonate is crushed to 10 orders after crusher in crushing stand-by; the Paris white of getting ready is added in the reactor; rare nitric acid with 25%-30% neutralizes with it under the ebullient state; the gained neutralizer filters; clear liquor is squeezed into vaporizer by pump; make clear liquor be evaporated to 40-43BE-; clear liquid after to be evaporated enters the outfit groove; add ammonium nitrate solution and obtain calcium ammonium nitrate solution, then calcium ammonium nitrate solution is carried out the evaporation second time, vaporization temperature is increased to 150-180 ℃; enter the sponging granulator granulation, particulate product enters sifting machine again.
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| CN2008100793351A CN101348401B (en) | 2008-09-03 | 2008-09-03 | Preparation of calcium ammonium nitrate coated fertilizer |
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| CN2008100793351A CN101348401B (en) | 2008-09-03 | 2008-09-03 | Preparation of calcium ammonium nitrate coated fertilizer |
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| CN101348401A true CN101348401A (en) | 2009-01-21 |
| CN101348401B CN101348401B (en) | 2011-07-13 |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102951933A (en) * | 2011-08-19 | 2013-03-06 | 交城县三喜化工有限公司 | Production method of granulated calcium ammonium nitrate |
| CN103121870A (en) * | 2011-11-21 | 2013-05-29 | 山西省交城红星化工有限公司 | Preparation technology of zeolite nitrate fertilizer |
| CN104086235A (en) * | 2014-07-22 | 2014-10-08 | 路永宽 | Method for producing full-water-soluble magnesium ammonium nitrate by using steel belt granulator |
| CN105622251A (en) * | 2015-05-19 | 2016-06-01 | 成都市新都化工股份有限公司 | Microelement-added completely-water-soluble fertilizer and production method thereof |
| CN105622250A (en) * | 2015-05-19 | 2016-06-01 | 成都市新都化工股份有限公司 | Boracic calcium ammonium nitrate and preparation method therefor |
| CN107266243A (en) * | 2017-06-19 | 2017-10-20 | 交城县田丰肥业有限公司 | A kind of preparation method of the silicon-calcium-magnesium fertilizer containing nitrate nitrogen |
| CN108424235A (en) * | 2018-04-19 | 2018-08-21 | 深圳市芭田生态工程股份有限公司 | Coating type organic nitrates ammonium calcium granulated fertilizer and preparation method thereof |
| CN108424301A (en) * | 2018-06-07 | 2018-08-21 | 上海永通生态工程股份有限公司 | A kind of strawberry special-purpose fertilizer and preparation method thereof |
| CN108752097A (en) * | 2018-06-13 | 2018-11-06 | 贵阳开磷化肥有限公司 | A kind of preparation method of simple substance sulfenyl phosphorus ammonium slow-release fertilizer |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2340638A1 (en) * | 1973-08-10 | 1975-02-20 | Lentia Gmbh | Sulphur mixed with hydrocarbons as coating for fertilisers - prevents caking of fertiliser under loading |
| CN1587210A (en) * | 2004-09-08 | 2005-03-02 | 云南解化集团有限公司 | Combined ammonium-calcium nitrate fertilizer with reduced explosive property and impring fertilizer effect and its producing process |
| DE102004055648A1 (en) * | 2004-11-12 | 2006-05-18 | Ami-Agrolinz Melamine International Gmbh | Process and apparatus for obtaining sulfur-containing nitrogen fertilizer |
| CN1289443C (en) * | 2005-05-03 | 2006-12-13 | 天脊煤化工集团有限公司 | Method and apparatus for producing calcium ammonium nitrate using by-product calcium nitrate of nitrate phosphatic fertilizer |
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2008
- 2008-09-03 CN CN2008100793351A patent/CN101348401B/en active Active
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102951933A (en) * | 2011-08-19 | 2013-03-06 | 交城县三喜化工有限公司 | Production method of granulated calcium ammonium nitrate |
| CN103121870A (en) * | 2011-11-21 | 2013-05-29 | 山西省交城红星化工有限公司 | Preparation technology of zeolite nitrate fertilizer |
| CN104086235A (en) * | 2014-07-22 | 2014-10-08 | 路永宽 | Method for producing full-water-soluble magnesium ammonium nitrate by using steel belt granulator |
| CN104086235B (en) * | 2014-07-22 | 2016-02-24 | 路永宽 | A kind of method utilizing steel band tablets press to produce full water-soluble ammonium nitrate magnesium |
| CN105622251A (en) * | 2015-05-19 | 2016-06-01 | 成都市新都化工股份有限公司 | Microelement-added completely-water-soluble fertilizer and production method thereof |
| CN105622250A (en) * | 2015-05-19 | 2016-06-01 | 成都市新都化工股份有限公司 | Boracic calcium ammonium nitrate and preparation method therefor |
| CN107266243A (en) * | 2017-06-19 | 2017-10-20 | 交城县田丰肥业有限公司 | A kind of preparation method of the silicon-calcium-magnesium fertilizer containing nitrate nitrogen |
| CN108424235A (en) * | 2018-04-19 | 2018-08-21 | 深圳市芭田生态工程股份有限公司 | Coating type organic nitrates ammonium calcium granulated fertilizer and preparation method thereof |
| CN108424301A (en) * | 2018-06-07 | 2018-08-21 | 上海永通生态工程股份有限公司 | A kind of strawberry special-purpose fertilizer and preparation method thereof |
| CN108752097A (en) * | 2018-06-13 | 2018-11-06 | 贵阳开磷化肥有限公司 | A kind of preparation method of simple substance sulfenyl phosphorus ammonium slow-release fertilizer |
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| CN101348401B (en) | 2011-07-13 |
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