CN106927940A - Composite fertilizer and preparation method thereof - Google Patents
Composite fertilizer and preparation method thereof Download PDFInfo
- Publication number
- CN106927940A CN106927940A CN201511024608.9A CN201511024608A CN106927940A CN 106927940 A CN106927940 A CN 106927940A CN 201511024608 A CN201511024608 A CN 201511024608A CN 106927940 A CN106927940 A CN 106927940A
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- China
- Prior art keywords
- composite fertilizer
- fertilizer
- parts
- fertilizer according
- citric acid
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Classifications
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- 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
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Pest Control & Pesticides (AREA)
- Fertilizers (AREA)
Abstract
The present invention relates to a kind of composite fertilizer and preparation method thereof.A kind of composite fertilizer, counts by weight, including following components：8 parts~70 parts of acicular crystal urea；1 part~10 parts of magnesium sulfate；0.5 part~2 parts of citric acid；10 parts~50 parts of phosphorus source；10 parts~70 parts of potassium resource；And 1 part~5 parts of trace element.Above-mentioned composite fertilizer can anti-compaction.
Description
Technical field
The present invention relates to a kind of composite fertilizer and preparation method thereof.
Background technology
The Integration of Water into Fertilizer is will to irrigate the new agricultural technology combined together with fertilising, is combination of irrigating and apply fertilizer
Best way.Calculated according to 900,000,000 mu of irrigated areas of China, current water-fertilizer integral application percentage only has 2.87%, therefore hair
Exhibition has a extensive future.It is very universal using the body technique of liquid manure one in the agricultural developed country such as Israel, U.S., mainly from liquid
Body fertilizer or rapidly dissolvable powdery multi-element fertilizer.But liquid fertilizer needs the ducts for extending in all direction, and needs
Long term distance is transported, and by contrast, the flexible rapidly dissolvable powdery multi-element fertilizer of traffic condition just more has obvious
Advantage.
However, the powder fertilizer such as sulphur ammonium, phosphorus ammonium, ammonium nitrate, urea, hydrophily is big, in storage and transport all there may be
Caking.Caused by the hydrophily of this moisture absorption or caking system by fertilizer oneself, the generation that entirely prevent this phenomenon is difficult
's.In the past, in order to eliminate the primary of caking on condition that preventing the moisture absorption, the method for use is the low chemical fertilizer blending of hygroscopicity
To in bibulous fertilizer, mixed fertilizer or chemical conversion fertilizer are made, or powdered fertilizer is granulated, or non-hygroscopic
Property powdery stable material (such as diatomite, kaolin, talcum etc) stick to granulated fertilizer surface, or packaging is held
Device reforms into the container of complete protection against the tide, but no matter is also impossible to entirely prevent the moisture absorption, caking using what kind of method.
The content of the invention
Based on this, it is necessary to provide it is a kind of can effective composite fertilizer of anti-compaction and preparation method thereof.
A kind of composite fertilizer, counts by weight, including following components：
Wherein in one embodiment, the acicular crystal urea be needle-like or strip crystal, the mesh of fineness 80~120,
Particle diameter is 0.15~0.20mm.
Wherein in one embodiment, phosphorus source is selected from least one in potassium dihydrogen phosphate and dipotassium hydrogen phosphate.
Wherein in one embodiment, the potassium resource is selected from least one in potassium nitrate and potassium chloride.
Wherein in one embodiment, it is described trace element selected from monohydrate zinc sulphate, manganese sulfate monohydrate, borax, boric acid and
At least one in ammonium molybdate.
Wherein in one embodiment, the magnesium sulfate is anhydrous magnesium sulfate, it is more than the mesh of magnesium sulfate fineness 300, grain
Footpath is less than 0.045mm.
Wherein in one embodiment, the citric acid is Citric Acid Mono, and the fineness of the citric acid is 20~60 mesh,
Particle diameter is 0.4~0.8mm.
Wherein in one embodiment, count by weight, including following components：
The preparation method of the composite fertilizer described in any of the above-described, including the step of the composite fertilizer is vacuum-packed.
Wherein in one embodiment, also including step, each component is well mixed and obtains the composite fertilizer.
In above-mentioned composite fertilizer, by needle-like urea reduce its with the recrystallization between multielement powder fertilizer other components,
Anhydrous magnesium sulfate lifts critical relative moisture, the citric acid stable crystal form of powder fertilizer, it is to avoid the contact point of particle repeated
Moisture absorption, dissolving, recrystallization, reach the purpose for preventing fertilizer hardened；Production it is simple and easy to apply, it is not necessary to add it is water-soluble, fat-soluble,
Hydrophobic anti hardening agent, completely water-soluble without slag, the later stage can also carry out vacuumizing packaging, be a kind of ideal accurate filling
Irrigate facility fertilizer.
Specific embodiment
Composite fertilizer and preparation method thereof is described in further detail mainly in combination with specific embodiment below.
The composite fertilizer of one implementation method, counts by weight, including following components：
Preferably, acicular crystal urea be needle-like or strip crystal, the mesh of fineness 80~120, particle diameter be 0.15~
0.20mm.The relative molecular weight of urea is 60.06.
Preferably, phosphorus source is selected from least one in potassium dihydrogen phosphate and dipotassium hydrogen phosphate.
Preferably, potassium resource is selected from least one in potassium nitrate and potassium chloride.
Preferably, trace element is selected from least in monohydrate zinc sulphate, manganese sulfate monohydrate, borax, boric acid and ammonium molybdate
Kind.
Preferably, magnesium sulfate is anhydrous magnesium sulfate, and more than the mesh of magnesium sulfate fineness 300, particle diameter is less than 0.045mm.Anhydrous sulphur
The relative molecular weight of sour magnesium is 120.36.
Preferably, citric acid is Citric Acid Mono, and the fineness of the citric acid is 20~60 mesh, particle diameter is 0.4~
0.8mm.The relative molecular weight of Citric Acid Mono is 210.14.
Preferably, count by weight, including following components：
Proved by the experimental study of inventor, powder fertilizer is hardened main by putting up a bridge or recrystallizing, and influence powder
Fertilizer is hardened mainly to have following six factor：1st, urea and potassium nitrate content ratio；2nd, critical relative moisture；3rd, fine powder mesh number with
Crystal formation；4th, ambient pressure；5th, raw material moisture；6th, the temperature difference.
In the present invention, given up and crush in existing production technology urea and sieve this flow, but directly used needle-like
Crystallization urea, this crystallization urea stable crystal form, particle diameter are big, advantageously reduce interparticle adhesion, are difficult and other components
(especially potassium nitrate) forms recrystallization and lumps；This critical relative moisture of anhydrous magnesium sulfate 'inertia' very high is added to do
Dry material, can both lift the critical relative moisture of powder fertilizer, it is also possible to avoid the release of the crystallization water and big solubility chemical combination
The generation of thing；And citric acid has the hydrophily of height, crystal formation can't be changed after absorbing moisture, add crystal formation particle diameter greatly, no
Capillary adhesion can be caused to crystallize, when the temperature is changed, stabilization other components crystal formation can be played a part of.
In above-mentioned composite fertilizer, by needle-like urea reduce its with the recrystallization between multielement powder fertilizer other components,
Anhydrous magnesium sulfate lifts critical relative moisture, the citric acid stable crystal form of powder fertilizer, it is to avoid the contact point of particle repeated
Moisture absorption, dissolving, recrystallization, reach the purpose for preventing fertilizer hardened；Production it is simple and easy to apply, it is not necessary to add it is water-soluble, fat-soluble,
Hydrophobic anti hardening agent, completely water-soluble without slag, the later stage can also carry out vacuumizing packaging, be a kind of ideal accurate filling
Facility fertilizer is irrigate, not plugging, not blocking sprayer, not block dust gauze are complete water-soluble without slag, and dissolve rapid.
The preparation method of above-mentioned composite fertilizer, including step：
Each component is well mixed and is obtained the composite fertilizer and the composite fertilizer is vacuum-packed.
The preparation method of above-mentioned composite fertilizer, it is simple to operate.
It is below specific embodiment part：
Embodiment 1
The composite fertilizer of embodiment 1 includes：
Embodiment 2
The composite fertilizer of embodiment 2 includes：
Embodiment 3
The composite fertilizer of embodiment 3 includes：
Composite fertilizer in embodiment 1-3 is carried out into anti-compaction experiment, in temperature 50 C, the constant temperature and humidity of relative humidity 75%
6 hours are placed in case, and different case study on implementation are sieved with 2mm screen clothes, calculate the percent of pass below 1mm, 2mm particle diameter
To weigh anti-compaction degree.
Meanwhile, (50 DEG C of constant temperature are placed 1 hour, weight gain 5%, then the humidity is designated as the sample to determine critical relative humidity
The critical relative humidity of product).
As shown above, the data of case study on implementation of the invention are right all apparently higher than the common powder fertilizer for waiting nutrient content
Anti-compaction can play extraordinary effect.
Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality
Apply all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, the scope of this specification record is all considered to be.
Embodiment described above only expresses several embodiments of the invention, and its description is more specific and detailed, but simultaneously
Can not therefore be construed as limiting the scope of the patent.It should be pointed out that coming for one of ordinary skill in the art
Say, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection of the invention
Scope.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (10)
1. a kind of composite fertilizer, it is characterised in that count by weight, including following components：
2. composite fertilizer according to claim 1, it is characterised in that the acicular crystal urea is that needle-like or strip are brilliant
Body, the mesh of fineness 80~120, particle diameter is 0.15~0.20mm.
3. composite fertilizer according to claim 1, it is characterised in that phosphorus source is selected from potassium dihydrogen phosphate and dipotassium hydrogen phosphate
In at least one.
4. composite fertilizer according to claim 1, it is characterised in that the potassium resource is selected from potassium nitrate and potassium chloride at least
It is a kind of.
5. composite fertilizer according to claim 1, it is characterised in that the trace element is selected from monohydrate zinc sulphate, a water sulphur
At least one in sour manganese, borax, boric acid and ammonium molybdate.
6. composite fertilizer according to claim 1, it is characterised in that the magnesium sulfate is anhydrous magnesium sulfate, the magnesium sulfate
More than the mesh of fineness 300, particle diameter is less than 0.045mm.
7. composite fertilizer according to claim 1, it is characterised in that the citric acid is Citric Acid Mono, the citric acid
Fineness be 20~60 mesh, particle diameter be 0.4~0.8mm.
8. composite fertilizer according to claim 1, it is characterised in that count by weight, including following components：
。
9. the preparation method of the composite fertilizer as described in any one of claim 1~8, it is characterised in that including by the composite fertilizer
The step of being vacuum-packed.
10. the preparation method of composite fertilizer as claimed in claim 9, it is characterised in that also including step, mixes equal by each component
It is even to obtain the composite fertilizer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511024608.9A CN106927940A (en) | 2015-12-29 | 2015-12-29 | Composite fertilizer and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511024608.9A CN106927940A (en) | 2015-12-29 | 2015-12-29 | Composite fertilizer and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106927940A true CN106927940A (en) | 2017-07-07 |
Family
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| CN201511024608.9A Pending CN106927940A (en) | 2015-12-29 | 2015-12-29 | Composite fertilizer and preparation method thereof |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102438968A (en) * | 2009-01-28 | 2012-05-02 | 艾弗里斯国际私人有限公司 | Fast dissolving water-soluble fertilizer formulations and methods and uses thereof |
| CN102875216A (en) * | 2012-10-31 | 2013-01-16 | 贵港市芭田生态有限公司 | Control method for preventing caking and chalking of high-tower nitro-sulfenyl compound fertilizer |
| CN103708958A (en) * | 2013-12-24 | 2014-04-09 | 成都新柯力化工科技有限公司 | Macroelement solid water-soluble fertilizer and preparation method thereof |
| CN104193460A (en) * | 2014-08-22 | 2014-12-10 | 江苏谷熠农业科技有限公司 | Water-soluble fertilizer containing major elements and production technique thereof |
| CN104736499A (en) * | 2012-08-29 | 2015-06-24 | 亚拉国际有限公司 | Urea passivation technique and new product passivated urea, to make urea or urea-based compound universally blendable |
-
2015
- 2015-12-29 CN CN201511024608.9A patent/CN106927940A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102438968A (en) * | 2009-01-28 | 2012-05-02 | 艾弗里斯国际私人有限公司 | Fast dissolving water-soluble fertilizer formulations and methods and uses thereof |
| CN104736499A (en) * | 2012-08-29 | 2015-06-24 | 亚拉国际有限公司 | Urea passivation technique and new product passivated urea, to make urea or urea-based compound universally blendable |
| CN102875216A (en) * | 2012-10-31 | 2013-01-16 | 贵港市芭田生态有限公司 | Control method for preventing caking and chalking of high-tower nitro-sulfenyl compound fertilizer |
| CN103708958A (en) * | 2013-12-24 | 2014-04-09 | 成都新柯力化工科技有限公司 | Macroelement solid water-soluble fertilizer and preparation method thereof |
| CN104193460A (en) * | 2014-08-22 | 2014-12-10 | 江苏谷熠农业科技有限公司 | Water-soluble fertilizer containing major elements and production technique thereof |
Non-Patent Citations (1)
| Title |
|---|
| 泸州化工专科学校等合编: "《无机物工艺学 下册》", 31 December 1987, 化学工业出版社 * |
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Application publication date: 20170707 |