CN104725097A - Method for producing full water-soluble magnesium potassium ammonium nitrate by virtue of steel belt granulation - Google Patents
Method for producing full water-soluble magnesium potassium ammonium nitrate by virtue of steel belt granulation Download PDFInfo
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- CN104725097A CN104725097A CN201510123046.7A CN201510123046A CN104725097A CN 104725097 A CN104725097 A CN 104725097A CN 201510123046 A CN201510123046 A CN 201510123046A CN 104725097 A CN104725097 A CN 104725097A
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05C—NITROGENOUS FERTILISERS
- C05C1/00—Ammonium nitrate fertilisers
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Abstract
The invention relates to a production method of a fertilizer, and in particular discloses a method for producing full water-soluble magnesium potassium ammonium nitrate by virtue of steel belt granulation, aiming at solving the technical problems of poor stability of quality and high cracking possibility in an existing potassium-magnesium fertilizer process in which a potassium fertilizer and a magnesium fertilizer are simply mixed. The key point of the method disclosed by the invention is as follows: the optimum proportion of synthesizing magnesium potassium ammonium nitrate from potassium nitrate, magnesium nitrate and ammonium nitrate is discovered; firstly, magnesium nitrate and ammonium nitrate are mixed in a special proportion to synthesize magnesium ammonium nitrate, and on the basis, the addition of potassium ammonium is further determined, so that the prepared magnesium calcium nitrate fertilizer can be used for thoroughly solving the phenomenon of cracking, and is uniform in content and diverse in nutrient type. The synergic effect of the potassium fertilizer and the magnesium fertilizer is utilized to the greatest extent. The magnesium potassium nitrate produced by the invention is in the shape of a hemispherical sheet which can form a clear and transparent solution when dissolved in water and can solve the problems of high cracking possibility and instable quality; and compared with a single fertilizer, the fertilizer is diverse in nutrient type, is package-saving and is more convenient for farmers in use.
Description
Technical field
The present invention relates to the production method of chemical fertilizer, be specially a kind of method that full water-soluble potassium ammonium nitrate magnesium is produced in steel band granulation.
Background technology
Research shows, in potassium energy activated plant body, multiple enzyme participates in photosynthesis, magnesium elements can be worked in coordination with simultaneously and promote that photosynthesis carries out, therefore crop applying potassic-magnesian fertilizer is than single administration potash fertilizer or fertiliser containing magnesium successful, but existing potassic-magnesian fertilizer technique is only the simple blending of potash fertilizer and fertiliser containing magnesium, be difficult to reach stay-in-grade requirement, and simple blending is easy to cause caking, have impact on the application effect of fertilizer.Therefore be starved of a kind of can give full play to potash fertilizer and fertiliser containing magnesium collaborative fertilizer efficiency and the fertilizer of prevented from caking.
Summary of the invention
The present invention is that to solve current potassic-magnesian fertilizer technique be only the stable not and technical problem that is easily caking of the simple blending of potash fertilizer and fertiliser containing magnesium, quality, provides a kind of steel band granulation to produce the method for full water-soluble potassium ammonium nitrate magnesium.
The present invention realizes by the following technical solutions: the method for full water-soluble potassium ammonium nitrate magnesium is produced in a kind of steel band granulation, comprise the following steps: (1), the dust technology being 40% by potassium hydroxide and concentration add the first reactor and carry out neutralization reaction, and the mol ratio of potassium hydroxide and nitric acid is 1:1; Temperature controls at 70 ~ 80 DEG C of stirring reaction 1.5 ~ 2h, and regulate reaction solution pH to 6.5 ~ 7.5 with potassium hydroxide afterwards, the saltpetre neutralizer obtained enters Filter Press, obtains clear filtrate; Filtrate is pumped into vaporizer and carry out evaporation concentration, being evaporated to proportion is 1.380 ~ 1.510g/cm
3;
(2) dust technology being, 40% by magnesium oxide and concentration adds the second reactor and carries out neutralization reaction, the mol ratio of magnesium oxide and nitric acid is 1:1, temperature controls at 70 ~ 80 DEG C of stirring reaction 1.5 ~ 2h, reaction solution pH to 6.5 ~ 7.5 are regulated afterwards with magnesium oxide, neutralizer enters Filter Press, obtain clear filtrate, filtrate is pumped into vaporizer and carry out evaporation concentration, being evaporated to proportion is 1.380 ~ 1.430g/cm
3, for subsequent use;
(3), the magnesium nitrate concentrated solution that step (2) obtains is pumped in the saltpetre concentrated solution in step (1), add ammonium nitrate again, wherein mass ratio is saltpetre: magnesium nitrate: ammonium nitrate=25 ~ 36:65 ~ 54:10, evaporation concentration, and concentrate to proportion is 1.150 ~ 1.540g/cm
3, vaporization temperature is 150 ~ 180 DEG C; (saltpetre, magnesium nitrate, ammonium nitrate all refer to three kinds of pure materials)
(4) concentrated solution, in step (3) enters cooling reactor, adds boric acid, EDTA-copper, EDTA-iron, EDTA-zinc, EDTA-manganese, ammonium molybdate; Above-mentioned micro-quality and be more than or equal to 0.2% of concentrated solution quality, enters steel band tablets press after being stirred to dissolving, generate grass green semi-spherical shape potassium ammonium nitrate magnesium finished product.
1, the present invention is by adjusting production technique, thoroughly solves existing potassium, fertiliser containing magnesium product easily lumps, uses inconvenient and that nutrient is single, content is unequal problem.
2, emphasis of the present invention is the optimum proportion having searched out saltpetre, magnesium nitrate and ammonium nitrate nitric acid synthesis ammonium potassium magnesium, first by magnesium nitrate and ammonium nitrate nitric acid synthesis ammonium magnesium in specific proportions, determine the addition of saltpetre on this basis further, the nitrocalcite fertiliser containing magnesium obtained so thoroughly solves caking phenomenon, content is even, and nutrient wide variety.The synergy of potash fertilizer and fertiliser containing magnesium is utilized.
3, the saltpetre magnesium that the present invention produces is semisphere sheet (diameter 1 ~ 50mm), product is water-soluble is limpid clear solution, solve that product easily lumps, quality instability problem, and many compared with single fertilizer nutrient kind, save packaging and peasant household uses convenient.
Saltpetre, magnesium nitrate and ammonium nitrate are synthesized double salt by chemical process according to special formulation by the present invention in specific proportions, not only solve product easily to lump nutrient Single-issue, and potassium and magnesium better can promote photosynthetic carrying out in product, compared with the single potash fertilizer of use or fertiliser containing magnesium, crop yield, sugariness, quality all have clear improvement.
Accompanying drawing explanation
The structural representation of Fig. 1 device of the present invention.
1-first dilute acid bath, 2-potassium hydroxide groove, 3-first reactor; 4-first pressure filter, 5-saltpetre vaporizer, 6-first steam boiler; 7-ammonium nitrate liquid bath, 8-second dilute acid bath, 9-magnesium oxide groove; 10-second reactor; 11-second pressure filter, 12-magnesium nitrate vaporizer, 13-second steam boiler; 14-cooling reactor, 15-steel band tablets press.
Embodiment
A method for full water-soluble potassium ammonium nitrate magnesium is produced in steel band granulation, comprises the following steps:
(1), the dust technology that is 40% by potassium hydroxide and concentration adds the first reactor and carries out neutralization reaction, and the mol ratio of potassium hydroxide and nitric acid is 1:1; Temperature controls at 70 ~ 80 DEG C of (70 DEG C, 72 DEG C, 74 DEG C, 76 DEG C, 78 DEG C, 80 DEG C) stirring reaction 1.5 ~ 2h(1.5h, 1.6h, 1.7h, 1.8h, 1.9h, 2h), reaction solution pH to 6.5 ~ 7.5(6.5,6.7,6.9,7.1,7.3,7.5 is regulated afterwards) with potassium hydroxide, the saltpetre neutralizer obtained enters Filter Press, obtains clear filtrate; Filtrate is pumped into vaporizer and carry out evaporation concentration, being evaporated to proportion is 1.380 ~ 1.510g/cm
3(1.380 g/cm
3, 1.410 g/cm
3, 1.440 g/cm
3, 1.480 g/cm
3, 1.510 g/cm
3);
(2) dust technology being, 40% by magnesium oxide and concentration adds the second reactor and carries out neutralization reaction, the mol ratio of magnesium oxide and nitric acid is 1:1, temperature controls at 70 ~ 80 DEG C of (70 DEG C, 72 DEG C, 74 DEG C, 76 DEG C, 78 DEG C, 80 DEG C) stirring reaction 1.5 ~ 2h(1.5h, 1.6h, 1.7h, 1.8h, 1.9h, 2h), reaction solution pH to 6.5 ~ 7.5 are regulated afterwards with magnesium oxide, neutralizer enters Filter Press, obtain clear filtrate, filtrate is pumped into vaporizer and carry out evaporation concentration, being evaporated to proportion is 1.380 ~ 1.430g/cm
3(1.380 g/cm
3, 1.390 g/cm
3, 1.400 g/cm
3, 1.410 g/cm
3, 1.420 g/cm
3, 1.430 g/cm
3), for subsequent use;
(3), the magnesium nitrate concentrated solution that step (2) obtains is pumped in the saltpetre concentrated solution in step (1), add ammonium nitrate again, wherein mass ratio is saltpetre: magnesium nitrate: ammonium nitrate=25 ~ 36:65 ~ 54:10(25:65:10,27:63:10,29:61:10,31:59:10,33:56:10,36:54:10), evaporation concentration, concentrate to proportion is 1.150 ~ 1.540g/cm
3(1.150g/cm
3, 1.230g/cm
3, 1.310g/cm
3, 1.390g/cm
3, 1.470g/cm
3, 1.540g/cm
3), vaporization temperature is 150 ~ 180 DEG C (150 DEG C, 160 DEG C, 170 DEG C, 180 DEG C);
(4) concentrated solution, in step (3) enters cooling reactor, adds boric acid, EDTA-copper, EDTA-iron, EDTA-zinc, EDTA-manganese, ammonium molybdate; Above-mentioned micro-quality and be more than or equal to 0.2% of concentrated solution quality, enters steel band tablets press 15 after being stirred to dissolving, generate grass green semi-spherical shape potassium ammonium nitrate magnesium finished product.
The method of full water-soluble potassium ammonium nitrate magnesium is produced in embodiment 1 one kinds of steel band granulations, comprises the following steps: (1), the dust technology being 40% by potassium hydroxide and concentration add the first reactor and carry out neutralization reaction, and the mol ratio of potassium hydroxide and nitric acid is 1:1; Temperature controls at 70 DEG C of stirring reaction 1.5h, and regulate reaction solution pH to 6.5 with potassium hydroxide afterwards, the saltpetre neutralizer obtained enters Filter Press, obtains clear filtrate; Filtrate is pumped into vaporizer and carry out evaporation concentration, being evaporated to proportion is 1.410 g/cm
3;
(2) dust technology being, 40% by magnesium oxide and concentration adds the second reactor and carries out neutralization reaction, the mol ratio of magnesium oxide and nitric acid is 1:1, temperature controls at 72 DEG C of stirring reaction 1.5h, reaction solution pH to 6.5 is regulated afterwards with magnesium oxide, neutralizer enters Filter Press, obtain clear filtrate, filtrate is pumped into vaporizer and carry out evaporation concentration, being evaporated to proportion is 1.390 g/cm
3, for subsequent use;
(3), by the magnesium nitrate concentrated solution that step (2) obtains pump in the saltpetre concentrated solution in step (1), then add ammonium nitrate, wherein mass ratio is saltpetre: magnesium nitrate: ammonium nitrate=25:65:10, evaporation concentration, and concentrate to proportion is 1.230g/cm
3, vaporization temperature is 180 DEG C;
(4) concentrated solution, in step (3) enters cooling reactor, adds boric acid, EDTA-copper, EDTA-iron, EDTA-zinc, EDTA-manganese, ammonium molybdate; Above-mentioned micro-quality and be greater than 0.2% of concentrated solution quality, enters steel band tablets press after being stirred to dissolving, generate grass green semi-spherical shape potassium ammonium nitrate magnesium finished product.
The method of full water-soluble potassium ammonium nitrate magnesium is produced in embodiment 2 one kinds of steel band granulations, comprises the following steps: (1), the dust technology being 40% by potassium hydroxide and concentration add the first reactor and carry out neutralization reaction, and the mol ratio of potassium hydroxide and nitric acid is 1:1; Temperature controls at 74 DEG C of stirring reaction 1.8h, and regulate reaction solution pH to 6.7 with potassium hydroxide afterwards, the saltpetre neutralizer obtained enters Filter Press, obtains clear filtrate; Filtrate is pumped into vaporizer and carry out evaporation concentration, being evaporated to proportion is 1.480 g/cm
3;
(2) dust technology being, 40% by magnesium oxide and concentration adds the second reactor and carries out neutralization reaction, the mol ratio of magnesium oxide and nitric acid is 1:1, temperature controls at 70 DEG C of stirring reaction 1.8h, reaction solution pH to 6.7 is regulated afterwards with magnesium oxide, neutralizer enters Filter Press, obtain clear filtrate, filtrate is pumped into vaporizer and carry out evaporation concentration, being evaporated to proportion is 1.400 g/cm
3, for subsequent use;
(3), by the magnesium nitrate concentrated solution that step (2) obtains pump in the saltpetre concentrated solution in step (1), then add ammonium nitrate, wherein mass ratio is saltpetre: magnesium nitrate: ammonium nitrate=27:63:10, evaporation concentration, and concentrate to proportion is 1.150g/cm
3, vaporization temperature is 160 DEG C;
(4) concentrated solution, in step (3) enters cooling reactor, adds boric acid, EDTA-copper, EDTA-iron, EDTA-zinc, EDTA-manganese, ammonium molybdate; Above-mentioned micro-quality and be more than or equal to 0.2% of the described concentrated solution quality of step (3), enters steel band tablets press after being stirred to dissolving, generate grass green semi-spherical shape potassium ammonium nitrate magnesium finished product.
The method of full water-soluble potassium ammonium nitrate magnesium is produced in embodiment 3 one kinds of steel band granulations, comprises the following steps: (1), the dust technology being 40% by potassium hydroxide and concentration add the first reactor and carry out neutralization reaction, and the mol ratio of potassium hydroxide and nitric acid is 1:1; Temperature controls at 76 DEG C of stirring reaction 2h, and regulate reaction solution pH to 6.9 with potassium hydroxide afterwards, the saltpetre neutralizer obtained enters Filter Press, obtains clear filtrate; Filtrate is pumped into vaporizer and carry out evaporation concentration, being evaporated to proportion is 1.440 g/cm
3;
(2) dust technology being, 40% by magnesium oxide and concentration adds the second reactor and carries out neutralization reaction, the mol ratio of magnesium oxide and nitric acid is 1:1, temperature controls at 74 DEG C of stirring reaction 1.7h, reaction solution pH to 6.9 is regulated afterwards with magnesium oxide, neutralizer enters Filter Press, obtain clear filtrate, filtrate is pumped into vaporizer and carry out evaporation concentration, being evaporated to proportion is 1.420 g/cm
3, for subsequent use;
(3), by the magnesium nitrate concentrated solution that step (2) obtains pump in the saltpetre concentrated solution in step (1), then add ammonium nitrate, wherein mass ratio is saltpetre: magnesium nitrate: ammonium nitrate=29:61:10, evaporation concentration, and concentrate to proportion is 1.390g/cm
3, vaporization temperature is 170 DEG C;
(4) concentrated solution, in step (3) enters cooling reactor, adds boric acid, EDTA-copper, EDTA-iron, EDTA-zinc, EDTA-manganese, ammonium molybdate; Above-mentioned micro-quality and be more than or equal to 0.2% of concentrated solution quality, enters steel band tablets press after being stirred to dissolving, generate grass green semi-spherical shape potassium ammonium nitrate magnesium finished product.
The method of full water-soluble potassium ammonium nitrate magnesium is produced in embodiment 4 one kinds of steel band granulations, comprises the following steps: (1), the dust technology being 40% by potassium hydroxide and concentration add the first reactor and carry out neutralization reaction, and the mol ratio of potassium hydroxide and nitric acid is 1:1; Temperature controls at 80 DEG C of stirring reaction 1.7h, and regulate reaction solution pH to 7.1 with potassium hydroxide afterwards, the saltpetre neutralizer obtained enters Filter Press, obtains clear filtrate; Filtrate is pumped into vaporizer and carry out evaporation concentration, being evaporated to proportion is 1.380g/cm
3;
(2) dust technology being, 40% by magnesium oxide and concentration adds the second reactor and carries out neutralization reaction, the mol ratio of magnesium oxide and nitric acid is 1:1, temperature controls at 76 DEG C of stirring reaction 1.6h, reaction solution pH to 7.1 is regulated afterwards with magnesium oxide, neutralizer enters Filter Press, obtain clear filtrate, filtrate is pumped into vaporizer and carry out evaporation concentration, being evaporated to proportion is 1.380g/cm
3, for subsequent use;
(3), by the magnesium nitrate concentrated solution that step (2) obtains pump in the saltpetre concentrated solution in step (1), then add ammonium nitrate, wherein mass ratio is saltpetre: magnesium nitrate: ammonium nitrate=31:59:10, evaporation concentration, and concentrate to proportion is 1.310g/cm
3, vaporization temperature is 150 DEG C;
(4) concentrated solution, in step (3) enters cooling reactor, adds boric acid, EDTA-copper, EDTA-iron, EDTA-zinc, EDTA-manganese, ammonium molybdate; Above-mentioned micro-quality and be more than or equal to 0.2% of concentrated solution quality, enters steel band tablets press after being stirred to dissolving, generate grass green semi-spherical shape potassium ammonium nitrate magnesium finished product.
The method of full water-soluble potassium ammonium nitrate magnesium is produced in embodiment 5 one kinds of steel band granulations, comprises the following steps: (1), the dust technology being 40% by potassium hydroxide and concentration add the first reactor and carry out neutralization reaction, and the mol ratio of potassium hydroxide and nitric acid is 1:1; Temperature controls at 72 DEG C of stirring reaction 1.6h, and regulate reaction solution pH to 7.3 with potassium hydroxide afterwards, the saltpetre neutralizer obtained enters Filter Press, obtains clear filtrate; Filtrate is pumped into vaporizer and carry out evaporation concentration, being evaporated to proportion is 1.510 g/cm
3;
(2) dust technology being, 40% by magnesium oxide and concentration adds the second reactor and carries out neutralization reaction, the mol ratio of magnesium oxide and nitric acid is 1:1, temperature controls at 80 DEG C of stirring reaction 1.9h, reaction solution pH to 7.3 is regulated afterwards with magnesium oxide, neutralizer enters Filter Press, obtain clear filtrate, filtrate is pumped into vaporizer and carry out evaporation concentration, being evaporated to proportion is 1.410 g/cm
3, for subsequent use;
(3), by the magnesium nitrate concentrated solution that step (2) obtains pump in the saltpetre concentrated solution in step (1), then add ammonium nitrate, wherein mass ratio is saltpetre: magnesium nitrate: ammonium nitrate=33:56:10, evaporation concentration, and concentrate to proportion is 1.470g/cm
3, vaporization temperature is 150 DEG C;
(4) concentrated solution, in step (3) enters cooling reactor, adds boric acid, EDTA-copper, EDTA-iron, EDTA-zinc, EDTA-manganese, ammonium molybdate; Above-mentioned micro-quality and be more than or equal to 0.2% of concentrated solution quality, enters steel band tablets press after being stirred to dissolving, generate grass green semi-spherical shape potassium ammonium nitrate magnesium finished product.
The method of full water-soluble potassium ammonium nitrate magnesium is produced in embodiment 6 one kinds of steel band granulations, comprises the following steps: (1), the dust technology being 40% by potassium hydroxide and concentration add the first reactor and carry out neutralization reaction, and the mol ratio of potassium hydroxide and nitric acid is 1:1; Temperature controls at 78 DEG C of stirring reaction 1.9h, and regulate reaction solution pH to 7.5 with potassium hydroxide afterwards, the saltpetre neutralizer obtained enters Filter Press, obtains clear filtrate; Filtrate is pumped into vaporizer and carry out evaporation concentration, being evaporated to proportion is 1.410 g/cm
3;
(2) dust technology being, 40% by magnesium oxide and concentration adds the second reactor and carries out neutralization reaction, the mol ratio of magnesium oxide and nitric acid is 1:1, temperature controls at 78 DEG C of stirring reaction 2h, reaction solution pH to 7.5 is regulated afterwards with magnesium oxide, neutralizer enters Filter Press, obtain clear filtrate, filtrate is pumped into vaporizer and carry out evaporation concentration, being evaporated to proportion is 1.430 g/cm
3, for subsequent use;
(3), by the magnesium nitrate concentrated solution that step (2) obtains pump in the saltpetre concentrated solution in step (1), then add ammonium nitrate, wherein mass ratio is saltpetre: magnesium nitrate: ammonium nitrate=36:54:10, evaporation concentration, and concentrate to proportion is 1.540g/cm
3, vaporization temperature is 180 DEG C;
(4) concentrated solution, in step (3) enters cooling reactor, adds boric acid, EDTA-copper, EDTA-iron, EDTA-zinc, EDTA-manganese, ammonium molybdate; Above-mentioned micro-quality and be more than or equal to 0.2% of concentrated solution quality, enters steel band tablets press after being stirred to dissolving, generate grass green semi-spherical shape potassium ammonium nitrate magnesium finished product.
As shown in Figure 1, fill dust technology in first dilute acid bath 1, fill potassium hydroxide in potassium hydroxide 2 groove, two containers are connected with the first reactor 3 by pipeline, the bottom discharge mouth of the first reactor 3 is connected with the first pressure filter 4 by pipeline, for filtering saltpetre neutralizer; Dust technology is filled equally in second dilute acid bath 8, magnesium oxide is filled in magnesium oxide groove 9, two containers are connected with the second reactor 10 by pipeline, and the bottom discharge mouth of the second reactor 10 is connected with the second pressure filter 11 by pipeline, for filtering magnesium nitrate neutralizer; Magnesium nitrate vaporizer 12 concentrates for realizing magnesium nitrate, and saltpetre vaporizer 5 realizes the concentrated of saltpetre; Ammonium nitrate liquid bath 7 adds ammonium nitrate solution in saltpetre vaporizer 5, and the synthesis that saltpetre vaporizer 5 realizes saltpetre, ammonium nitrate and magnesium nitrate concentrates, and two steam boilers provide steam respectively to saltpetre, magnesium nitrate vaporizer.Single steel band granulation flaker that steel band tablets press adopts upper Nereid's great waves steel band Science and Technology Ltd. to produce, device numbering: JT3000-1.5-17.5.
Claims (2)
1. the method for a steel band granulation production full water-soluble potassium ammonium nitrate magnesium, it is characterized in that, comprise the following steps: (1), the dust technology being 40% by potassium hydroxide and concentration add the first reactor and carry out neutralization reaction, and the mol ratio of potassium hydroxide and nitric acid is 1:1; Temperature controls at 70 ~ 80 DEG C of stirring reaction 1.5 ~ 2h, and regulate reaction solution pH to 6.5 ~ 7.5 with potassium hydroxide afterwards, the saltpetre neutralizer obtained enters Filter Press, obtains clear filtrate; Filtrate is pumped into vaporizer and carry out evaporation concentration, being evaporated to proportion is 1.380 ~ 1.510g/cm
3;
(2) dust technology being, 40% by magnesium oxide and concentration adds the second reactor and carries out neutralization reaction, the mol ratio of magnesium oxide and nitric acid is 1:1, temperature controls at 70 ~ 80 DEG C of stirring reaction 1.5 ~ 2h, reaction solution pH to 6.5 ~ 7.5 are regulated afterwards with magnesium oxide, neutralizer enters Filter Press, obtain clear filtrate, filtrate is pumped into vaporizer and carry out evaporation concentration, being evaporated to proportion is 1.380 ~ 1.430g/cm
3, for subsequent use;
(3), the magnesium nitrate concentrated solution that step (2) obtains is pumped in the saltpetre concentrated solution in step (1), add ammonium nitrate again, wherein mass ratio is saltpetre: magnesium nitrate: ammonium nitrate=25 ~ 36:65 ~ 54:10, evaporation concentration, and concentrate to proportion is 1.150 ~ 1.540g/cm
3, vaporization temperature is 150 ~ 180 DEG C;
(4) concentrated solution, in step (3) enters cooling reactor, adds boric acid, EDTA-copper, EDTA-iron, EDTA-zinc, EDTA-manganese, ammonium molybdate; Above-mentioned micro-quality and be more than or equal to 0.2% of concentrated solution quality, enters steel band tablets press after being stirred to dissolving, generate grass green semi-spherical shape potassium ammonium nitrate magnesium finished product.
2. the method for full water-soluble potassium ammonium nitrate magnesium is produced in steel band granulation as claimed in claim 1, and it is characterized in that, described pressure filter adopts plate and frame(type)filter press.
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|---|---|---|---|
| CN201510123046.7A CN104725097B (en) | 2015-03-20 | 2015-03-20 | The method of steel band granulation production full water-soluble potassium ammonium nitrate magnesium |
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| US8568506B1 (en) * | 2008-05-27 | 2013-10-29 | John C. Miller | Method and system for agricultural fertigation |
| CN103864470A (en) * | 2014-03-14 | 2014-06-18 | 交城县金兰化工有限公司 | Potassium-magnesium nitrate double-salt type compound fertilizer and preparation method thereof |
| 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 |
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2015
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| RU2230718C1 (en) * | 2003-07-07 | 2004-06-20 | Открытое акционерное общество "Акрон" | Method for preparing complex fertilizers |
| US8568506B1 (en) * | 2008-05-27 | 2013-10-29 | John C. Miller | Method and system for agricultural fertigation |
| CN103232269A (en) * | 2013-05-08 | 2013-08-07 | 湖北富邦科技股份有限公司 | Synthesis method for magnesium potassium phosphate slow release fertilizer |
| CN103864470A (en) * | 2014-03-14 | 2014-06-18 | 交城县金兰化工有限公司 | Potassium-magnesium nitrate double-salt type compound fertilizer and preparation method thereof |
| 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 |
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