CN110423144A - A kind of N P and K water soluble fertilizer and preparation method thereof - Google Patents
A kind of N P and K water soluble fertilizer and preparation method thereof Download PDFInfo
- Publication number
- CN110423144A CN110423144A CN201910829712.7A CN201910829712A CN110423144A CN 110423144 A CN110423144 A CN 110423144A CN 201910829712 A CN201910829712 A CN 201910829712A CN 110423144 A CN110423144 A CN 110423144A
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- China
- Prior art keywords
- monoammonium phosphate
- fertilizer
- potassium
- water soluble
- reaction
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05B—PHOSPHATIC FERTILISERS
- C05B11/00—Fertilisers produced by wet-treating or leaching raw materials either with acids in such amounts and concentrations as to yield solutions followed by neutralisation, or with alkaline lyes
- C05B11/04—Fertilisers produced by wet-treating or leaching raw materials either with acids in such amounts and concentrations as to yield solutions followed by neutralisation, or with alkaline lyes using mineral acid
- C05B11/10—Fertilisers produced by wet-treating or leaching raw materials either with acids in such amounts and concentrations as to yield solutions followed by neutralisation, or with alkaline lyes using mineral acid using orthophosphoric acid
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05B—PHOSPHATIC FERTILISERS
- C05B7/00—Fertilisers based essentially on alkali or ammonium orthophosphates
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05D—INORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C; FERTILISERS PRODUCING CARBON DIOXIDE
- C05D7/00—Fertilisers producing carbon dioxide
Abstract
The present invention provides a kind of N P and K water soluble fertilizer, and principle active component is monoammonium phosphate potassium, and preparation method includes the following steps: S1, and phosphoric acid and liquefied ammonia reaction generate ammonium dihydrogen phosphate, i.e. monoammonium phosphate；S2, monoammonium phosphate and potassium carbonate/saleratus/potassium hydroxide reaction generate monoammonium phosphate potassium.Theoretically, monoammonium phosphate potassium contains N 9.13%, P2O546.41%, K2O 30.72%, N-P-K content are up to 86.26%, and high water solubility, and the Water soluble fertilizer that N P and K meets national standard 500g/L is easily made.Using the monoammonium phosphate of Wet-process Phosphoric Acid Production, and then monoammonium phosphate potassium is produced, three kinds of elements of N P and K are concentrated in a kind of double salt in a creative way, there is very high researching value and application value；The fertilizer is high containing phosphorus potassium element, and the alkalescent Water soluble fertilizer that pH value is 7.2 can be prepared into high nitrogen fertilizer.
Description
Technical field
The present invention relates to fertilizer processing technique field, especially a kind of N P and K water soluble fertilizer and preparation method thereof.
Background technique
Water soluble fertilizer (Water Soluble Fertilizer, abbreviation WSF), be it is a kind of can be completely soluble it is more
Element compound fertilizer, it can promptly be dissolved in the water, and be easy to be absorbed by crops, and more crucially it can be applied to be sprayed filling
Etc. industrialized agricultures, realize water-fertilizer integral, reach water-saving, save fertilizer, saving of labor efficiency.Water soluble fertilizer is mainly characterized by dosage
Few, easy to use, use cost is low, and crop absorbs fastly, and nutritional ingredient utilization rate is high.So, people completely can root
Carry out component design according to nutritional need feature needed for plant growth, scientific formula not will cause the waste of fertilizer, so that its fertilizer
Utilization rate is almost 2-3 times of conventional composite chemical fertilizer.Secondly, water soluble fertilizer is a quick-acting fertilizer, kind can be allowed
Plant person sees the effect and performance of fertilizer quickly, can be made adjustment at any time according to crop difference growing way to fertilizer formula.Mirror
In water soluble fertilizer be widely applied with good prospect, there are many existing Water soluble fertilizer type and brand.
Summary of the invention
Here, completely new N P and K water soluble fertilizer --- monoammonium phosphate potassium theoretically contains the present invention provides a kind of
There are N 9.13%, P2O546.41%, K2O 30.72%, N-P-K content are up to 86.26%, and high water solubility.
The present invention protects a kind of N P and K water soluble fertilizer, and principle active component is monoammonium phosphate potassium.
Optionally, the N P and K water soluble fertilizer is mainly by monoammonium phosphate NH4H2PO4With potassium carbonate K2CO3Two kinds of fertilizer
It is made by the molar ratio allotment reaction of 2:1, deploying the carbon dioxide generated in reaction process can be used as gas fertilizer, be used for greenhouse
And other desired occasion.
Optionally, the N P and K water soluble fertilizer is mainly by monoammonium phosphate NH4H2PO4With saleratus KHCO3Two seed manures
Material is made by the molar ratio allotment reaction of 1:1, and deploying the carbon dioxide generated in reaction process can be used as gas fertilizer, big for greenhouse
Canopy and other desired occasion.
Correspondingly, the present invention also protects the method for administration of above-mentioned fertilizer, by monoammonium phosphate NH in greenhouse4H2PO4With
Potassium carbonate K2CO3Two kinds of fertilizer carry out allotment reaction by the molar ratio of 2:1, provide high-content N P and K water soluble fertilizer for plant,
The carbon dioxide CO of generation2Simultaneously as gas fertilizer required in greenhouse；
Or by monoammonium phosphate NH in greenhouse4H2PO4With saleratus KHCO3Two kinds of fertilizer are adjusted by the molar ratio of 1:1
With reaction, high-content N P and K water soluble fertilizer, the carbon dioxide CO of generation are provided for plant2Simultaneously as required gas in greenhouse
Fertilizer.
The present invention also protects the preparation method of monoammonium phosphate potassium, comprising the following steps:
S1, phosphoric acid H3PO4With liquefied ammonia NH3Reaction generates ammonium dihydrogen phosphate NH4H2PO4, i.e. monoammonium phosphate；
S2, monoammonium phosphate NH4H2PO4With potassium carbonate K2CO3Or saleratus KHCO3Reaction generates monoammonium phosphate potassium
KNH4HPO4, and carbon dioxide and water are generated simultaneously.
Wherein, potassium carbonate K2CO3Or saleratus KHCO3Potassium hydroxide KOH can also be used, is generated at this time without carbon dioxide.
The present invention utilizes monoammonium phosphate NH4H2PO4With potassium carbonate K2CO3/ saleratus KHCO3The KOH double decomposition of/potassium hydroxide
Monoammonium phosphate potassium KNH is prepared in reaction4HPO4, theoretically contain N 9.13%, P2O546.41%, K2O 30.72%, nitrogen phosphorus
Potassium content is up to 86.26%, and high water solubility, and the Water soluble fertilizer that N P and K meets national standard 500g/L is easily made.
Using the monoammonium phosphate of Wet-process Phosphoric Acid Production, and then monoammonium phosphate potassium is produced, in a creative way by three kinds of N P and K
Element concentrates in a kind of double salt, has very high researching value and application value；The fertilizer is high containing phosphorus potassium element, can and high nitrogen
Fertilizer prepares into the alkalescent Water soluble fertilizer that pH value is 7.2.
Warm indoor scene deploy use, for the gentle fertilizer of agriculture in greenhouse high concentration N-P potassic fertilizer application open it is wide
Space.
Specific embodiment
Technical scheme in the embodiment of the invention is clearly and completely described combined with specific embodiments below, it is clear that
Described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based on the implementation in the present invention
Example, those of ordinary skill in the art's every other embodiment obtained shall fall within the protection scope of the present invention.
Embodiment 1
The present embodiment utilizes monoammonium phosphate NH4H2PO4With potassium carbonate K2CO3Metathesis reaction prepares monoammonium phosphate potassium
KNH4HPO4, wherein monoammonium phosphate NH4H2PO4Pass through phosphoric acid H3PO4With liquefied ammonia NH3Reaction generates.
Reaction equation is respectively as follows:
⑴NH3+H3PO4=NH4H2PO4
⑵2NH4H2PO4+K2CO3=2KNH4HPO4+H2O+CO2↑
Concrete operation step: 347.2g monoammonium phosphate NH is weighed4H2PO4, it is put into beaker, then addition 400g is pure into beaker
Water purification, until being heated to 65 DEG C, solid all dissolves heating stirring, and load weighted 208.3g potassium carbonate, reaction life is added portionwise
At a large amount of bubble, until there is no bubble formation, liquor analysis the results are shown in Table 1 for stirring；Solution is cooled to 0 DEG C, nodeless mesh
It is precipitated, solution is cooled to -20 DEG C, there is a small amount of crystal to be precipitated.
| Analysis project | Assay value |
| PH value | 8.08 |
| Solution density | 1.456g/mL |
| Nitrogen content (N) | 69.8g/L |
| Potassium content (K2O) | 213.1g/L |
| Phosphorus content (P2O5) | 354.1g/L |
| N P and K total content | 637g/L |
Table 1
Embodiment 2
The present embodiment utilizes monoammonium phosphate NH4H2PO4With saleratus KHCO3Metathesis reaction prepares monoammonium phosphate
Potassium KNH4HPO4, wherein monoammonium phosphate NH4H2PO4Pass through phosphoric acid H3PO4With liquefied ammonia NH3Reaction generates.
Reaction equation is respectively as follows:
⑴NH3+H3PO4=NH4H2PO4
⑵NH4H2PO4+KHCO3=KNH4HPO4+H2O+CO2↑
Concrete operation step: 145.1g monoammonium phosphate NH is weighed4H2PO4, it is put into beaker, then addition 200g is pure into beaker
Water purification, until being heated to 65 DEG C, solid all dissolves heating stirring, and load weighted 100.0g potassium carbonate, reaction life is added portionwise
At a large amount of bubble, stirring is until there is no bubble formations.
Embodiment 3
The present embodiment utilizes monoammonium phosphate NH4H2PO4Monoammonium phosphate potassium is prepared with potassium hydroxide KOH metathesis reaction
KNH4HPO4, wherein monoammonium phosphate NH4H2PO4Pass through phosphoric acid H3PO4With liquefied ammonia NH3Reaction generates.
Reaction equation is respectively as follows:
⑴NH3+H3PO4=NH4H2PO4
⑵NH4H2PO4+ KOH=KNH4HPO4+H2O
Concrete operation step: 145.1g monoammonium phosphate NH is weighed4H2PO4, it is put into beaker, then addition 200g is pure into beaker
Water purification, until being heated to 65 DEG C, solid all dissolves heating stirring, and load weighted 56.0g potassium hydroxide KOH is added portionwise.
Since there are Fe in phosphoric acid by wet process3+、Al3+Plasma exist, with liquefied ammonia NH3Fe when reaction, in phosphoric acid3+、
Al3+It generates calcium phosphate precipitation to come out, monoammonium phosphate solution is obtained by filtration.
Fe3++PO4 3+=FePO4↓
Al3++PO4 3+=AlPO4↓
Be gradually added reactant, with the raising of solution pH value, be dissolved in monoammonium phosphate solution fluorine element and element silicon by
Monoammonium phosphate potassium solution is obtained by filtration in step precipitating, and for evaporation solution to being saturated, cooling obtains monoammonium phosphate potassium crystal.
Therefore, monoammonium phosphate potassium KNH4HPO4During the preparation process, insoluble elements all in phosphoric acid are all passed through into precipitating
Mode remove, obtained monoammonium phosphate potassium with other raw materials compound Water soluble fertilizer when will not occur insoluble matter again, open significantly
It is wealthy its Water soluble fertilizer application aspect prospect.
The raising of the solubility with temperature of monoammonium phosphate greatly improves and (is shown in Table 2), can be largely reduced using this property
The dosage of aqueous solvent.
| Temperature | Monoammonium phosphate solubility (g) |
| 0℃ | 22.6 |
| 10℃ | 28.2 |
| 20℃ | 36.5 |
| 25℃ | 39.5 |
| 30℃ | 43.9 |
| 40℃ | 57 |
| 60℃ | 82.5 |
| 80℃ | 118.5 |
| 100℃ | 173.2 |
Table 2
Embodiment 4
Monoammonium phosphate potassium can prepare high-content compound fertilizer, the present embodiment with nitrogenous fertilizer, potash fertilizer, phosphate fertilizer and microelement
In, monoammonium phosphate potassium and urea 1:1 ratio are prepared into N >=27%, P2O5>=23%, K2O >=15%, total content >=65% are answered
Hefei.
Finally, it should also be noted that listed above is only the several specific embodiments of the present invention.Obviously, the present invention is unlimited
In above embodiments, acceptable there are many deformations.Those skilled in the art can directly lead from present disclosure
Out or all deformations for associating, it is considered as protection scope of the present invention.
Claims (8)
1. a kind of N P and K water soluble fertilizer, which is characterized in that its principle active component is monoammonium phosphate potassium.
2. N P and K water soluble fertilizer according to claim 1, which is characterized in that mainly by monoammonium phosphate NH4H2PO4With
Potassium carbonate K2CO3Two kinds of fertilizer are made by the molar ratio allotment reaction of 2:1, and deploying the carbon dioxide generated in reaction process can make
For gas fertilizer, it to be used for greenhouse.
3. N P and K water soluble fertilizer according to claim 1, which is characterized in that mainly by monoammonium phosphate NH4H2PO4With
Saleratus KHCO3Two kinds of fertilizer are made by the molar ratio allotment reaction of 1:1, and deploying the carbon dioxide generated in reaction process can
As gas fertilizer, it to be used for greenhouse.
4. a kind of preparation method of monoammonium phosphate potassium, which comprises the following steps:
S1, phosphoric acid H3PO4With liquefied ammonia NH3Reaction generates ammonium dihydrogen phosphate NH4H2PO4, i.e. monoammonium phosphate；
S2, monoammonium phosphate NH4H2PO4With potassium carbonate K2CO3Or saleratus KHCO3Reaction generates monoammonium phosphate potassium KNH4HPO4,
And carbon dioxide and water are generated simultaneously.
5. a kind of preparation method of monoammonium phosphate potassium, which comprises the following steps:
S1, phosphoric acid H3PO4With liquefied ammonia NH3Reaction generates ammonium dihydrogen phosphate NH4H2PO4, i.e. monoammonium phosphate；
S2, monoammonium phosphate NH4H2PO4It is reacted with potassium hydroxide KOH and generates monoammonium phosphate potassium KNH4HPO4And water.
6. a kind of method of administration of fertilizer described in claim 2, which is characterized in that by monoammonium phosphate NH in greenhouse4H2PO4With
Potassium carbonate K2CO3Two kinds of fertilizer carry out allotment reaction by the molar ratio of 2:1, provide high-content N P and K water soluble fertilizer for plant,
The carbon dioxide CO of generation2Simultaneously as gas fertilizer required in greenhouse.
7. a kind of method of administration of fertilizer described in claim 3, which is characterized in that by monoammonium phosphate NH in greenhouse4H2PO4With
Saleratus KHCO3Two kinds of fertilizer carry out allotment reaction by the molar ratio of 1:1, provide high-content N P and K water-soluble fertilizer for plant
Material, the carbon dioxide CO of generation2Simultaneously as gas fertilizer required in greenhouse.
8. a kind of form compound fertilizer or Water soluble fertilizer for monoammonium phosphate potassium and other fertilizer mixed preparings.
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| CN201910829712.7A CN110423144A (en) | 2019-09-04 | 2019-09-04 | A kind of N P and K water soluble fertilizer and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023104299A1 (en) | 2021-12-08 | 2023-06-15 | Flechsig Patent Company Llc | Process for producing an npk fertiliser containing potassium phosphate and ammonium phosphate |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87101529A (en) * | 1987-04-04 | 1988-10-19 | 沈阳化工综合利用研究所 | A kind of method of producing multiple compound manure of uniting |
| CN101348244A (en) * | 2008-09-08 | 2009-01-21 | 马健 | Preparation of ammonium potassium dihydrogen phosphate |
| CN103030129A (en) * | 2012-12-28 | 2013-04-10 | 贵州金正大生态工程有限公司 | Method for producing water-soluble ammonium potassium phosphate fertilizer with wet-method phosphoric acid |
| CN106258410A (en) * | 2016-08-15 | 2017-01-04 | 安徽省华之慧生态农业发展有限公司 | A kind of method of Ecological Tea Gardens plantation Radix Platycodonis medical material |
-
2019
- 2019-09-04 CN CN201910829712.7A patent/CN110423144A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87101529A (en) * | 1987-04-04 | 1988-10-19 | 沈阳化工综合利用研究所 | A kind of method of producing multiple compound manure of uniting |
| CN101348244A (en) * | 2008-09-08 | 2009-01-21 | 马健 | Preparation of ammonium potassium dihydrogen phosphate |
| CN103030129A (en) * | 2012-12-28 | 2013-04-10 | 贵州金正大生态工程有限公司 | Method for producing water-soluble ammonium potassium phosphate fertilizer with wet-method phosphoric acid |
| CN106258410A (en) * | 2016-08-15 | 2017-01-04 | 安徽省华之慧生态农业发展有限公司 | A kind of method of Ecological Tea Gardens plantation Radix Platycodonis medical material |
Non-Patent Citations (1)
| Title |
|---|
| 王才良: "《中国化工产品分析方法手册》", 31 July 1992 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023104299A1 (en) | 2021-12-08 | 2023-06-15 | Flechsig Patent Company Llc | Process for producing an npk fertiliser containing potassium phosphate and ammonium phosphate |
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