CN118515515A - Phosphate fertilizer wrapping agent and preparation method thereof - Google Patents
Phosphate fertilizer wrapping agent and preparation method thereof Download PDFInfo
- Publication number
- CN118515515A CN118515515A CN202410978755.2A CN202410978755A CN118515515A CN 118515515 A CN118515515 A CN 118515515A CN 202410978755 A CN202410978755 A CN 202410978755A CN 118515515 A CN118515515 A CN 118515515A
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- phosphate
- phosphate fertilizer
- fertilizer
- agent
- wrapping
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000002686 phosphate fertilizer Substances 0.000 title claims abstract description 110
- 239000003795 chemical substances by application Substances 0.000 title claims abstract description 51
- 238000002360 preparation method Methods 0.000 title abstract description 11
- 229910019142 PO4 Inorganic materials 0.000 claims abstract description 60
- 239000010452 phosphate Substances 0.000 claims abstract description 60
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims abstract description 52
- 239000011248 coating agent Substances 0.000 claims abstract description 44
- -1 diester phosphate Chemical class 0.000 claims description 18
- 239000010426 asphalt Substances 0.000 claims description 17
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 17
- 239000011707 mineral Substances 0.000 claims description 17
- 239000002480 mineral oil Substances 0.000 claims description 17
- 235000010446 mineral oil Nutrition 0.000 claims description 17
- 239000012188 paraffin wax Substances 0.000 claims description 17
- MNNHAPBLZZVQHP-UHFFFAOYSA-N diammonium hydrogen phosphate Chemical compound [NH4+].[NH4+].OP([O-])([O-])=O MNNHAPBLZZVQHP-UHFFFAOYSA-N 0.000 claims description 13
- 229910000388 diammonium phosphate Inorganic materials 0.000 claims description 13
- 235000019838 diammonium phosphate Nutrition 0.000 claims description 13
- 238000010438 heat treatment Methods 0.000 claims description 12
- 238000002156 mixing Methods 0.000 claims description 11
- 239000005696 Diammonium phosphate Substances 0.000 claims description 10
- 238000003756 stirring Methods 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 7
- LFVGISIMTYGQHF-UHFFFAOYSA-N ammonium dihydrogen phosphate Chemical compound [NH4+].OP(O)([O-])=O LFVGISIMTYGQHF-UHFFFAOYSA-N 0.000 claims description 5
- 229910000387 ammonium dihydrogen phosphate Inorganic materials 0.000 claims description 5
- 235000019837 monoammonium phosphate Nutrition 0.000 claims description 5
- 239000006012 monoammonium phosphate Substances 0.000 claims description 5
- 238000002844 melting Methods 0.000 claims description 2
- 230000008018 melting Effects 0.000 claims description 2
- 238000010521 absorption reaction Methods 0.000 abstract description 13
- 239000003337 fertilizer Substances 0.000 abstract description 13
- 230000002087 whitening effect Effects 0.000 abstract description 8
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 235000015097 nutrients Nutrition 0.000 abstract description 4
- 230000014759 maintenance of location Effects 0.000 abstract description 3
- 239000002245 particle Substances 0.000 abstract description 3
- 239000002994 raw material Substances 0.000 abstract description 3
- 230000002265 prevention Effects 0.000 abstract 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-N phosphoric acid Substances OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 35
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 23
- 239000007788 liquid Substances 0.000 description 13
- 150000005690 diesters Chemical class 0.000 description 10
- 230000002209 hydrophobic effect Effects 0.000 description 8
- 239000000126 substance Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 238000000576 coating method Methods 0.000 description 4
- 239000010410 layer Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- 125000000217 alkyl group Chemical group 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- LRMHFDNWKCSEQU-UHFFFAOYSA-N ethoxyethane;phenol Chemical compound CCOCC.OC1=CC=CC=C1 LRMHFDNWKCSEQU-UHFFFAOYSA-N 0.000 description 2
- 230000007062 hydrolysis Effects 0.000 description 2
- 238000006460 hydrolysis reaction Methods 0.000 description 2
- 150000003014 phosphoric acid esters Chemical class 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 239000011574 phosphorus Substances 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- 239000001692 EU approved anti-caking agent Substances 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 150000001335 aliphatic alkanes Chemical class 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 230000003301 hydrolyzing effect Effects 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 229910017053 inorganic salt Inorganic materials 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000011369 optimal treatment Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000002345 surface coating layer Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
- C05G3/40—Mixtures of one or more fertilisers with additives not having a specially fertilising activity for affecting fertiliser dosage or release rate; for affecting solubility
-
- 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
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
- C05G3/70—Mixtures of one or more fertilisers with additives not having a specially fertilising activity for affecting wettability, e.g. drying agents
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G5/00—Fertilisers characterised by their form
- C05G5/30—Layered or coated, e.g. dust-preventing coatings
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Pest Control & Pesticides (AREA)
- Fertilizers (AREA)
Abstract
The invention discloses a phosphate fertilizer wrapping agent and a preparation method thereof, and belongs to the field of phosphate fertilizer wrapping agent production. According to the invention, the new coating agent is prepared by adding the phosphate into the coating agent, and after the coating agent is used, the performances of moisture absorption resistance, whitening prevention, slow nutrient release, color retention time and the like of the fertilizer are all improved; the wrapping agent disclosed by the invention is easy to obtain raw materials, simple in preparation method, and capable of helping the phosphate fertilizer to improve the performances of moisture absorption resistance, whitening resistance and slow and controllable fertilizer efficiency release, and the overall color of the wrapping agent is dark brown after the wrapping agent is used for wrapping the phosphate fertilizer, and the particles are not adhered to each other, so that the color is stable, the heat resistance is stable, and the phosphate fertilizer is more efficiently improved.
Description
Technical Field
The invention relates to a phosphate fertilizer wrapping agent and a preparation method thereof, and belongs to the field of phosphate fertilizer wrapping agent production.
Background
The phosphate fertilizer has the main problems of easy moisture absorption and caking, rapid nutrient loss, short color retention time and the like in the production, transportation, storage and use processes, and the phosphate fertilizer is coated on the surface of the phosphate fertilizer by using the coating agent to become the optimal treatment mode for effectively solving the problems. Most of the coating agents have the same action principle as the anti-caking agents, namely, the coating agents are coated on the surface of the fertilizer by using hydrophobic materials to form a layer of hydrophobic film so as to reduce the absorption of phosphate fertilizer to moisture in the air, thereby achieving the anti-caking purpose. Along with the deep research of the coating agent, the coating agent has a certain protection effect on the phosphate fertilizer, but is only coated on the surface of the phosphate fertilizer simply through physics, so the coating agent is easy to fall off after long time, and the stability is not ideal.
In the process of preparing the coating agent, the main structure of the used raw materials of mineral asphalt, mineral oil and paraffin is alkyl, the protected phosphate fertilizer is inorganic salt, the coating is incomplete during the coating of the phosphate fertilizer, meanwhile, the coating agent can fall off along with friction among phosphate fertilizer particles after a period of time, the affinity among the coating agent and the phosphate fertilizer particles is poor, and various performances are still to be improved.
Based on the defects of the prior phosphate fertilizer wrapping agent, development of a new phosphate fertilizer wrapping agent with strong affinity and high performance is needed.
Disclosure of Invention
In order to solve the problems of easy falling and the like of the existing phosphate fertilizer wrapping agent, phosphate is added into the wrapping agent for the first time, so that the wrapping agent with strong affinity and high performance is obtained, and the content of the phosphate accounts for 5% -20% of the total mass of the wrapping agent.
Preferably, the phosphate is one or two of phosphoric monoester and phosphoric diester, and the phosphate is nonionic and slightly soluble in water.
Preferably, the wrapping agent includes: 40% -55% of mineral asphalt, 25% of mineral oil, 10% -15% of paraffin and 5% -20% of phosphate, wherein the total mass percentage of the mineral asphalt, the mineral oil, the paraffin and the phosphate is 100%.
Preferably, the phosphate fertilizer is monoammonium phosphate or diammonium phosphate.
Preferably, the phosphate fertilizer coating agent is obtained by mixing, heating, stirring and melting mineral asphalt, mineral oil, paraffin and phosphate ester according to a certain proportion to obtain a liquid state.
Preferably, the heating temperature is 80-100 ℃.
Preferably, when the phosphate fertilizer wrapping agent is used for wrapping phosphate fertilizer, 2.7kg of phosphate fertilizer wrapping agent is needed for wrapping per ton of phosphate fertilizer, and the phosphate fertilizer wrapping agent is only needed to be completely coated on the surface of the phosphate fertilizer.
The principle of the invention is as follows: as shown in fig. 1: r, R 1 and R 2 in-XOOR on the structure of the phosphoric monoester or-XOOR 1、-XOOR2 on the phosphoric diester have better affinity for hydrophobic substances, have better similar compatibility with alkyl groups in mineral asphalt, mineral oil and paraffin, and can form a dense hydrophobic layer of the wrapping agent which is more tightly connected with each other due to the better affinity; in addition, two-XOOH of the phosphoric acid diester structure and-XOOH of the phosphoric acid monoester are acidic and can react with alkaline substances, and a stable chemical bond is formed by sharing electron pairs between H + on ammonium in the phosphoric acid diester and single bond oxygen of XOO - in the phosphoric acid monoester or the phosphoric acid diester, so that the rest-NH 3 in the phosphoric acid diester has certain alkalinity and can react with-XOOH on the phosphoric acid diester and hydroxyl in-XOOH 1、-XOOH2 in the phosphoric acid monoester to generate an amide bond, so that the physical acting force is replaced by chemical acting force to connect the wrapping agent and the phosphoric acid fertilizer, the connection stability between the wrapping agent and the phosphoric acid fertilizer is improved, and the wrapping agent is not easy to fall off; in the application process of the phosphate fertilizer, due to the hydrolytic stability of the phosphate and the solubility of diammonium hydrogen phosphate, nutrients are released from inside to outside when the phosphate fertilizer is prepared into fertilizer liquid, and then the fertilizer liquid is influenced by the viscosity of the outer layer of the phosphate fertilizer liquid, so that the release speed of the nutrients is slowed down, the effect of control is achieved, amide bonds can be hydrolyzed when meeting water, the separation of the phosphate fertilizer and the wrapping agent is further achieved, the phosphate fertilizer and the wrapping agent enter the crops, and the gaps of the hydrophobic part of the wrapping agent form narrow channels for supplying water to enter the inside and releasing fertilizer efficiency when the phosphate fertilizer acts, so that the release speed of the phosphate fertilizer is further controlled.
As shown in figure 2, the strong affinity of the phosphate in the phosphoric acid wrapping agent to the hydrophobic part and the acting force of chemical bonds formed between diammonium hydrogen phosphate molecules respectively improve the compactness of the wrapping agent and the surface coating of the phosphate fertilizer, and the hydrolysis of the amide bonds in the application process can effectively control the release speed of the phosphate fertilizer.
The beneficial effects of the invention are that
(1) The invention selects the phosphoric acid monoester or phosphoric acid diester with bridging function to replace the compound ester, and prepares the novel wrapping agent with better performances such as moisture resistance, whitening resistance, slow release of fertilizer efficiency, chromaticity retention time and the like.
(2) The unique affinity of the phosphoric monoester and the phosphoric diester becomes a connecting bridge for connecting the hydrophobic alkane substances and the phosphate fertilizer products after the phosphate fertilizer is wrapped, so that the wrapping stability is improved, and the loss of the fertilizer efficiency of the phosphate fertilizer is effectively slowed down.
(3) The strong affinity of the phosphoric acid monoester and the phosphoric acid diester in the wrapping agent to the hydrophobic part and the acting force of the chemical bond formed between the diammonium hydrogen phosphate molecules respectively improve the compactness of the wrapping agent and the surface coating layer of the phosphate fertilizer, and the hydrolysis of the amide bond in the application process can effectively control the release speed of the phosphate fertilizer.
(4) The invention has simple preparation process, easily obtained raw materials, good production and use effects, and can be used for large-scale production and utilization, and the phosphoric acid monoester and the phosphoric acid diester are easier to degrade than the common composite ester and other components.
Drawings
FIG. 1 is a reaction diagram of phosphate esters and phosphate fertilizers; in the figure, (1) is a phosphoric monoester and (2) is a phosphoric diester.
Fig. 2 is a schematic diagram of the action of the new wrapping agent.
Detailed Description
The following embodiments further illustrate the technical solution of the present invention, but the following examples are merely simple examples of the present invention and do not represent or limit the scope of the claims of the present invention.
Example 1
Preparation of phosphate fertilizer wrapping agent
Mixing 55% of mineral asphalt, 25% of mineral oil, 15% of paraffin and 5% of phosphate mixture of monoester phosphate and diester phosphate (the mass ratio of the phosphate of the monoester phosphate to the phosphate of the diester is 1:1), and heating and stirring for 20min at a constant temperature of 90 ℃ to melt into a liquid state to prepare the phosphate fertilizer wrapping agent.
When the phosphate fertilizer is coated by the phosphate fertilizer coating agent, 2.7kg of the phosphate fertilizer coating agent is used for each ton of phosphate fertilizer, and the phosphate fertilizer is diammonium phosphate.
Example 2
Preparation of phosphate fertilizer wrapping agent
Mixing 55% of mineral asphalt, 25% of mineral oil, 10% of paraffin and 10% of phosphate mixture of monoester phosphate and diester phosphate (the mass ratio of the phosphate of monoester phosphate to the phosphate of diester is 1.5:1), and heating and stirring for 20min at the constant temperature of 80 ℃ to melt into a liquid state to prepare the phosphate fertilizer wrapping agent.
When the phosphate fertilizer is coated by the phosphate fertilizer coating agent, 2.7kg of the phosphate fertilizer coating agent is used for each ton of phosphate fertilizer, and the phosphate fertilizer is diammonium phosphate.
Example 3
Preparation of phosphate fertilizer wrapping agent
50% Of mineral asphalt, 25% of mineral oil, 10% of paraffin and 15% of phosphate mixture of monoester phosphate and diester phosphate (the mass ratio of the phosphate of the monoester phosphate to the phosphate of the diester is 2:1) are mixed, heated and stirred for 20min at the constant temperature of 90 ℃ to melt into a liquid state, so that the phosphate fertilizer wrapping agent is prepared.
When the phosphate fertilizer is coated by the phosphate fertilizer coating agent, 2.7kg of the phosphate fertilizer coating agent is used for each ton of phosphate fertilizer, and the phosphate fertilizer is diammonium phosphate.
Example 4
Preparation of phosphate fertilizer wrapping agent
Mixing 40% of mineral asphalt, 25% of mineral oil, 15% of paraffin and 20% of phosphate mixture of monoester phosphate and diester phosphate (the mass ratio of the phosphate of monoester phosphate to the phosphate of diester is 2.5:1), and heating and stirring for 20min at a constant temperature of 100 ℃ to melt into a liquid state to prepare the phosphate fertilizer wrapping agent.
When the phosphate fertilizer is coated by the phosphate fertilizer coating agent, 2.7kg of the phosphate fertilizer coating agent is used for each ton of phosphate fertilizer, and the phosphate fertilizer is diammonium phosphate.
Example 5
Mixing 42% of mineral asphalt, 25% of mineral oil, 15% of paraffin and 18% of phosphoric monoester, and heating and stirring at a constant temperature of 100 ℃ for 20min to melt into a liquid state to prepare the phosphate fertilizer wrapping agent.
When the phosphate fertilizer is coated by the phosphate fertilizer coating agent, 2.7kg of the phosphate fertilizer coating agent is used for each ton of phosphate fertilizer, and the phosphate fertilizer is diammonium phosphate.
Example 6
Mixing 45% of mineral asphalt, 25% of mineral oil, 15% of paraffin and 15% of phosphoric diester, and heating and stirring at a constant temperature of 100 ℃ for 20min to melt into a liquid state to prepare the phosphate fertilizer wrapping agent.
When the phosphate fertilizer is coated by the phosphate fertilizer coating agent, 2.7kg of the phosphate fertilizer coating agent is used for each ton of phosphate fertilizer, and the phosphate fertilizer is diammonium phosphate.
Example 7
Mixing 40% of mineral asphalt, 25% of mineral oil, 15% of paraffin and 20% of phosphate mixture of monoester phosphate and diester phosphate (the mass ratio of the phosphate of monoester phosphate to the phosphate of diester is 2.5:1), and heating and stirring for 20min at a constant temperature of 100 ℃ to melt into a liquid state to prepare the phosphate fertilizer wrapping agent.
When the phosphate fertilizer is coated by the phosphate fertilizer coating agent, 2.7kg of the phosphate fertilizer coating agent is used for each ton of phosphate fertilizer, and the phosphate fertilizer is monoammonium phosphate.
Comparative example 1
Preparation of phosphate fertilizer wrapping agent
In this comparative example, no phosphate was added, specifically: mixing 55% of mineral asphalt, 25% of mineral oil and 20% of paraffin, and heating and stirring at a constant temperature of 90 ℃ for 20min to melt into a liquid state to prepare the phosphate fertilizer wrapping agent.
When the phosphate fertilizer is coated by the phosphate fertilizer coating agent, 2.7kg of the phosphate fertilizer coating agent is used for each ton of phosphate fertilizer.
Comparative example 2
Mixing 42% of mineral asphalt, 25% of mineral oil, 15% of paraffin and 18% of phenol ether phosphate, and heating and stirring at a constant temperature of 100 ℃ for 20min to melt into a liquid state to prepare the phosphate fertilizer wrapping agent.
When the phosphate fertilizer is coated by the phosphate fertilizer coating agent, 2.7kg of the phosphate fertilizer coating agent is used for each ton of phosphate fertilizer, and the phosphate fertilizer is diammonium phosphate.
The phosphorus fertilizer wrappers prepared in examples 1 to 7 and comparative examples 1 and 2 were subjected to performance test, the whitening time was measured at a temperature of 40 ℃ and a relative humidity of 80%, and the test results are shown in table 1.
TABLE 1 variation of various Performance indicators for novel phosphorus fertilizer wrappers
From table 1, it can be seen that the moisture absorption rate at the same time decreases after the coating agent coats monoammonium phosphate or diammonium phosphate with increasing amounts of the component phosphate esters; the whitening time is prolonged, the average crushing pressure is also obviously reduced (the lower average crushing pressure shows that the better anti-caking effect is achieved), and the anti-caking, moisture absorption and whitening performance of the phosphate fertilizer can be enhanced by wrapping the phosphate fertilizer by using the wrapping agent added with the phosphate.
As can be seen from examples 5 and 6, the single use effect and the combined use effect of the phosphoric acid monoester and the phosphoric acid diester are similar, but the amounts are different, and the pure phosphoric acid monoester and the pure phosphoric acid diester are obtained by purifying, so that the present invention is mainly described in examples of mixing phosphoric acid monoester and phosphoric acid diester in the examples.
Comparative example 2 illustrates that the coating agent prepared by using the water-soluble phenol ether phosphate has poor anti-blocking, moisture-absorbing and whitening-preventing properties and is not capable of achieving good coating properties because the water-soluble phosphate cannot be well mixed with other oil-soluble components to exert a synergistic effect.
Moisture absorption= (weight of phosphate-added coating agent coated phosphate after moisture absorption for a certain period-weight of phosphate-added coating agent coated phosphate before moisture absorption)/weight of phosphate-added coating agent coated phosphate before moisture absorption.
Rate of change in moisture absorption value= (moisture absorption value of a phosphate-added-in-time-period-without-added-in-time-with-phosphate-coated phosphate)/(moisture absorption value of a phosphate-not-added-in-time-with-coating-in-time).
Whitening time change rate= (time to whitening of phosphate-added-wrapper-coated phosphate-without-phosphate-whitened time).
Average breaking pressure change rate = (average breaking pressure of phosphate-added-and phosphate-not-added-and phosphate-coated phosphate fertilizer-coated average breaking pressure).
Claims (4)
1. A phosphate fertilizer wrapping agent is characterized in that: the coating agent contains phosphate, wherein the content of the phosphate accounts for 5% -20% of the total mass of the coating agent, the phosphate is one or two of monoammonium phosphate or diester phosphate and is mixed according to any proportion, and the phosphate fertilizer is monoammonium phosphate or diammonium phosphate.
2. The phosphate coating agent according to claim 1, wherein: the wrapping agent comprises: 40% -55% of mineral asphalt, 25% of mineral oil, 10% -15% of paraffin and 5% -20% of phosphate, wherein the total mass percentage of the mineral asphalt, the mineral oil, the paraffin and the phosphate is 100%.
3. The method for preparing the phosphate fertilizer wrapping agent according to any one of claims 1 or 2, characterized in that: mixing, heating, stirring and melting mineral asphalt, mineral oil, paraffin and phosphate according to a proportion to obtain the phosphate fertilizer wrapping agent.
4. The method for preparing the phosphate fertilizer coating agent according to claim 3, wherein: the heating temperature is 80-100 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410978755.2A CN118515515A (en) | 2024-07-22 | 2024-07-22 | Phosphate fertilizer wrapping agent and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410978755.2A CN118515515A (en) | 2024-07-22 | 2024-07-22 | Phosphate fertilizer wrapping agent and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN118515515A true CN118515515A (en) | 2024-08-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202410978755.2A Pending CN118515515A (en) | 2024-07-22 | 2024-07-22 | Phosphate fertilizer wrapping agent and preparation method thereof |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AUPP210598A0 (en) * | 1998-03-02 | 1998-03-26 | Hi-Fert Pty. Ltd. | A coating process for fertilizers |
| CN103383373A (en) * | 2012-05-05 | 2013-11-06 | 温州医学院 | Preparation of modified electrode for detecting dopamine and determining method |
| CN103626597A (en) * | 2013-12-19 | 2014-03-12 | 青岛海大生物集团有限公司 | Seaweed ammonium phosphate fertilizer and preparation method thereof |
| US20200022372A1 (en) * | 2018-07-19 | 2020-01-23 | Koch Agronomic Services, Llc | Low temperature stable formulations of urease inhibitor-containing compositions |
| CN112010694A (en) * | 2019-05-29 | 2020-12-01 | 武汉强盛科技有限公司 | Wrapping agent for improving whitening of diammonium phosphate |
| CN117618624A (en) * | 2023-11-15 | 2024-03-01 | 扬州景怡医疗科技有限公司 | Medical polymer bandage convenient for biodegradation and preparation method thereof |
-
2024
- 2024-07-22 CN CN202410978755.2A patent/CN118515515A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AUPP210598A0 (en) * | 1998-03-02 | 1998-03-26 | Hi-Fert Pty. Ltd. | A coating process for fertilizers |
| CN103383373A (en) * | 2012-05-05 | 2013-11-06 | 温州医学院 | Preparation of modified electrode for detecting dopamine and determining method |
| CN103626597A (en) * | 2013-12-19 | 2014-03-12 | 青岛海大生物集团有限公司 | Seaweed ammonium phosphate fertilizer and preparation method thereof |
| US20200022372A1 (en) * | 2018-07-19 | 2020-01-23 | Koch Agronomic Services, Llc | Low temperature stable formulations of urease inhibitor-containing compositions |
| CN112010694A (en) * | 2019-05-29 | 2020-12-01 | 武汉强盛科技有限公司 | Wrapping agent for improving whitening of diammonium phosphate |
| CN117618624A (en) * | 2023-11-15 | 2024-03-01 | 扬州景怡医疗科技有限公司 | Medical polymer bandage convenient for biodegradation and preparation method thereof |
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