CN107778082A - A kind of slow release chemical fertilizer and its production technology - Google Patents
A kind of slow release chemical fertilizer and its production technology Download PDFInfo
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- CN107778082A CN107778082A CN201711031376.9A CN201711031376A CN107778082A CN 107778082 A CN107778082 A CN 107778082A CN 201711031376 A CN201711031376 A CN 201711031376A CN 107778082 A CN107778082 A CN 107778082A
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- fertilizer
- chemical fertilizer
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- 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
-
- 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
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- Life Sciences & Earth Sciences (AREA)
- Pest Control & Pesticides (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Fertilizers (AREA)
Abstract
The invention discloses a kind of slow release chemical fertilizer, the chemical fertilizer includes the raw material of following parts by weight：5 15 parts of 50 80 parts of fertilizer, 10 25 parts of complexing agent, 5 15 parts of controlled release agent and additive；One or more of the fertilizer in nitrogenous fertilizer, phosphate fertilizer, potash fertilizer；The controlled release agent includes the one or more in high molecular weight water soluble polymer, adsorbent, silicone oil.The slow release chemical fertilizer of the present invention has longer release time, can effectively reduce artificial chemical fertilizer and discharge number.
Description
Technical field
The present invention relates to a kind of chemical fertilizer and its production technology, particularly a kind of slow release chemical fertilizer and its production technology.
Background technology
Existing chemical fertilizer release control technology mainly by being coated processing to fertilizer surface, forms protective coating, profit
Slow down absorption of the soil to fertilizer with coating, and then extend fertilizer release time, but control time is shorter, causes chemical fertilizer in short-term
It is interior to be completely released, there is the shortcomings that fertilizer efficiency is short, need to repeatedly apply fertilizer, cause in planting fruit trees, it is necessary to by artificial more
Secondary fertilising could solve the fruit tree nutritional need of 1 year, but multiple Fertilising implement has that human cost is too high, soil is easily hardened simultaneously
Problem.Therefore the present invention is based on problem above, and a kind of slow release chemical fertilizer is invented in design, extends the release time of chemical fertilizer, to reduce
Need within 1 year in the plantings such as fruit tree to discharge chemical fertilizer number.
The content of the invention
The invention provides a kind of slow release chemical fertilizer and its production technology, at least to solve the slow release chemical fertilizer fertilizer efficiency of prior art
Short, the problem of need to repeatedly applying fertilizer.
The invention provides a kind of slow release chemical fertilizer, the chemical fertilizer includes the raw material of following parts by weight：Fertilizer 50-80 parts, network
Mixture 10-25 parts, controlled release agent 5-15 parts, additive 5-15 parts and silicone oil 1-50 parts；The fertilizer is selected from nitrogenous fertilizer, phosphate fertilizer, potash fertilizer
In one or more；The composition of the controlled release agent includes high molecular weight water soluble polymer, adsorbent and silicone oil.
Further, the complexing agent is selected from biological fermentation compound amino acid, EDETATE SODIUM, sodium citrate salt, pyrophosphoric acid
One or more in tetramine.
Further, the high molecular weight water soluble polymer is selected from modified natural polymers, polyacrylamide, polyethylene pyrrole
One or more in pyrrolidone, PLA.
Further, the one kind of the adsorbent in diatomite, 100-400 mesh silica gel, 60-200 mesh charcoal bases
It is or a variety of.
Further, the additive is selected from sulfonic chloride, dodecyl sodium sulfate, polypropylene glycol, mannitol
In one or more.
Further, biological source fertilizer 5-15 parts are also included in the chemical fertilizer.
Further, the slow release chemical fertilizer is multi-layer solid column pie structure.
Further, it is additionally provided with epoxy resin integument layer between each layer of the slow release chemical fertilizer.
Another object of the present invention is the production technology for providing above-mentioned slow release chemical fertilizer, comprises the following steps：
Step 1：Take fertilizer, complexing agent to add tank diameter, the heating stirring 6-8 hours at 40-90 DEG C, add controlled release agent
1-2 hours are stirred at 35-100 DEG C；
Step 2：Take step 1 products obtained therefrom to add in comminutor, carry out returning charge, and add additive, be granulated, in 60-
Dried at a temperature of 150 DEG C, form chemical fertilizer solid particle；
Step 3：Take chemical fertilizer solid particle in step 2 to add extruder, and add silicone oil, carry out extrusion molding, formed
Chemical fertilizer block.
Further, chemical fertilizer in the step 3 is taken, column pie chemical fertilizer block is formed through extruding；In column pie chemical fertilizer block
Upper coating epoxy resin, is covered in baking oven, and 1-10 hours are dried at 50-160 DEG C, forms epoxy resin integument；Take multiple outer
Layer has the column pie chemical fertilizer block of epoxy resin integument, through adhesive bond, forms multi-layer solid column pie chemical fertilizer.
The present invention, by the combination of application complexing agent and fertilizer, forms complexing fertilizer, reduces fertilizer relative to prior art
Soil speed is incorporated, extends fertilizer release time.Meanwhile it is of the invention by adding controlled release agent in fertilizer, using in controlled release agent
High molecular weight water soluble polymer and combination of adsorbents, further adsorption fertilizer, delay nutrition in fertilizer to flow into soil,
Extend the release time of fertilizer, reach the purpose for reducing fertilising.
Embodiment
In order that those skilled in the art more fully understand the present invention program, below by the skill in the embodiment of the present invention
Art scheme is clearly and completely described, it is clear that and described embodiment is only the embodiment of a present invention part, without
It is whole embodiments.Embodiment one
The embodiment of the present invention one provides a kind of slow release chemical fertilizer, and the chemical fertilizer includes the raw material of following parts by weight：Fertilizer 60
Part, 15 parts of complexing agent, 10 parts of controlled release agent, 10 parts of additive and 10 parts of silicone oil；
It is 5 that the fertilizer, which is nitrogenous fertilizer with phosphate fertilizer according to mass ratio,：1 mixes；
The fertilizer is biological fermentation compound amino acid and EDETATE SODIUM according to mass ratio 1：1 mixes；
The controlled release agent is that polyacrylamide, diatomite and silicone oil according to mass ratio are 1：5：0.2 mixes；
The additive is sulfonic chloride.
Chemical fertilizer production process of the embodiment of the present invention comprises the following steps：
Step 1：Nitrogenous fertilizer, phosphate fertilizer, biological fermentation compound amino acid and EDETATE SODIUM is taken to add tank diameter, at 50-60 DEG C
Heating stirring 6 hours, polyacrylamide and diatomite are added, and stirred 1 hour at 100 DEG C；
Step 2：Take step 1 products obtained therefrom to add in comminutor, carry out returning charge, and add sulfonic chloride and make
Grain, is dried with 150 DEG C of temperature, forms dry chemical fertilizer solid particle in an oven；
Step 3：Take chemical fertilizer solid particle in step 2 to add extruder, and add silicone oil, carry out extrusion molding, formed
Solid chemical fertilizer granule.
In the embodiment of the present invention, it is complexed by using biological fermentation compound amino acid and EDETATE SODIUM with nitrogenous fertilizer, phosphate fertilizer, shape
Into complex salt, delay nitrogenous fertilizer, phosphate fertilizer to flow into soil speed, extend chemical fertilizer release time.Meanwhile diatomite as controlled release agent it
One, fixed structure is formed with polyacrylamide, silicone oil, the loss of nitrogenous fertilizer, phosphate fertilizer is further prevented, extends chemical fertilizer release time.
In addition, biological fermentation compound amino acid is easy to degrade, nutritional supplementation can also be carried out to plant as carbon source, improve the fertilizer of chemical fertilizer
Power.
In the embodiment of the present invention, chemical fertilizer solid particle is also compressed to cheese, is easy to the carrying and encapsulation of chemical fertilizer.Exist simultaneously
In use, cheese compared with other shapes, is easy to landfill in soil, fertilising difficulty can be effectively reduced.
Embodiment two
The embodiment of the present invention two provides a kind of slow release chemical fertilizer, and the chemical fertilizer includes the raw material of following parts by weight：Fertilizer 80
Part, 25 parts of complexing agent, 5 parts of controlled release agent, 5 parts of additive, 1 part of silicone oil and 5 parts of biological source fertilizer；
The fertilizer is that phosphate fertilizer, potash fertilizer according to mass ratio are 2：1 mixes；
The fertilizer is EDETATE SODIUM, sodium citrate salt according to mass ratio 2：1 mixes；
The controlled release agent is that modified natural polymers, 100-400 mesh silica gel and silicone oil according to mass ratio are 1：2：0.5 mixing
Form, wherein modified natural polymers are modified cellulose；
The additive is polypropylene glycol, mannitol according to mass ratio 1：1 mixes；
The biological source fertilizer is made up of animal wastes and its waste extract through drying and crushing.
Chemical fertilizer production process of the embodiment of the present invention comprises the following steps：
Step 1：Phosphate fertilizer, potash fertilizer, EDETATE SODIUM, biological source fertilizer, sodium citrate salt, polypropylene glycol and mannitol is taken to add
Enter tank diameter, heating stirring 6 hours at 40-50 DEG C, add modified cellulose, 100-400 mesh silica gel and silicone oil, and at 40 DEG C
Lower stirring 1 hour；
Step 2：Take the product in step 1 and dried in an oven with 100 DEG C of temperature, form dry chemical fertilizer solid
Particle；
Step 3：Take chemical fertilizer solid particle in step 2 to add extruder appearance, form solid chemical fertilizer granule.
In the embodiment of the present invention, it is complexed, is formed compound with phosphate fertilizer, potash fertilizer by using sodium citrate salt and EDETATE SODIUM
Salt, delay phosphate fertilizer, potash fertilizer to flow into soil speed, extend chemical fertilizer release time.Meanwhile 100-400 mesh silica gel as controlled release agent it
One, there is more preferable adsorption capacity than diatomite, and fixed structure is formed with modified cellulose and silicone oil, preventing phosphate fertilizer, potassium
Fertilizer effectively prevents moisture content from flowing into while loss, prevents from being destroyed in wet environment when chemical fertilizer is long.In addition, given birth to by adding
Material resource fertilizer, nutrition in chemical fertilizer is improved, is further increase soil fertility.
Embodiment three
The embodiment of the present invention three provides a kind of slow release chemical fertilizer, and the chemical fertilizer includes the raw material of following parts by weight：Fertilizer 65
Part, 15 parts of complexing agent, 10 parts of controlled release agent, 15 parts of additive, 10 parts of biological source fertilizer and 1 part of silicone oil；
The fertilizer is that nitrogenous fertilizer, phosphate fertilizer, potash fertilizer according to mass ratio are 2：1：2 mix；
The fertilizer is sodium citrate salt；
The controlled release agent is that polyvinylpyrrolidone, 60-200 mesh charcoal bases and silicone oil according to mass ratio are 1：3：0.5
Mix；
The additive is dodecyl sodium sulfate；
The biological source fertilizer is made up of animal wastes and its waste extract solution through drying and crushing.
Chemical fertilizer production process of the embodiment of the present invention comprises the following steps：
Step 1：Take nitrogenous fertilizer, phosphate fertilizer, potash fertilizer, biological source fertilizer, sodium citrate salt to add tank diameter, add at 80-90 DEG C
Thermal agitation 3 hours, polyvinylpyrrolidone and 60-200 mesh charcoal bases are added, and stirred 2 hours at 70 DEG C；
Step 2：Take step 1 products obtained therefrom to add in comminutor, carry out returning charge, and add dodecyl sodium sulfate,
Dried in baking oven with 150 DEG C of temperature, form dry chemical fertilizer solid particle；
Step 3：Take chemical fertilizer solid particle in step 2 to add extruder, and add silicone oil appearance, form solid chemical fertilizer
Grain；
Step 4：Chemical fertilizer granule in step 3 is taken, cheese chemical fertilizer block is further formed through extruding；Shroud is applied on chemical fertilizer block
Oxygen tree fat, and cover in baking oven, dried 10 hours at 150 DEG C, form epoxy resin integument, the epoxy resin integument accounts for chemical fertilizer
The 2-5% of block gross weight；Take multiple outer layers that there is the chemical fertilizer block of epoxy resin integument, through adhesive bond, form cheese multicolumn
Shape pie chemical fertilizer.
In the embodiment of the present invention, it is complexed by using sodium citrate salt and nitrogenous fertilizer, phosphate fertilizer, potash fertilizer, forms complex salt, delay
Nitrogenous fertilizer, phosphate fertilizer, potash fertilizer flow into soil speed, extend chemical fertilizer release time.Meanwhile 60-200 mesh charcoal bases as controlled release agent it
One, fixed structure is formed with polyvinylpyrrolidone and silicone oil, prevents the quick loss of nitrogenous fertilizer, phosphate fertilizer, potash fertilizer, extends chemical fertilizer and releases
Put the time.In addition, 60-200 mesh charcoals base can be used as biological carbon source, chemical fertilizer fertility is further improved.
Particularly, by forming epoxy resin integument on the outside of chemical fertilizer block in the embodiment of the present invention, and multiple chemical fertilizer are passed through
Bonded between block, form multilayer sustained release composite construction, outermost chemical fertilizer layer only has individual layer epoxy resin integument, is easy to brokenly in short term
It is bad, and the chemical fertilizer layer of inner side then has double-deck epoxy resin integument, is not easy to destroy, and has longer release time.It is of the invention real
Apply example and be sustained composite construction chemical fertilizer by forming multilayer, chemical fertilizer is discharged with gradient, rationally extend the slow-release fertilizer time, reduce
Chemical fertilizer discharges number.
The embodiment of the present invention uses leaching in water to evaluate each embodiment slow-release fertilizer performance, and specific practice is：Take 10 grams
Slow release chemical fertilizer to be measured is soaked in 200 milliliters of water, 25 DEG C of constant temperature immersions, determines preliminary solubility and average differential solubility.
Described preliminary solubility refers to that the urea quality for initially starting dissolution in the 24h of immersion accounts for 10 grams and takes sustained release to be measured in the present invention
The percentage of fertilizer gross mass in chemical fertilizer, and average differential solubility is then from immersion averagely dissolution daily in the 2nd day to the 7th day
Fertilizer quality accounts for 10 grams of percentages for taking fertilizer gross mass in slow release chemical fertilizer to be measured.According to preliminary solubility ψ1With average differential
Dissolution rate ψm, can calculate slow release chemical fertilizer of the present invention in water acquisition time t (my god)：
Fertilizer dissolution rate is as shown in the table in embodiment one to three：
| Fertilizer quality (g) in 10g chemical fertilizer | Fertilizer content (%) in chemical fertilizer | Acquisition time (my god) | |
| Embodiment one | 6.3 | 63.15 | 235 |
| Embodiment two | 6.7 | 66.67 | 268 |
| Embodiment three | 5.6 | 56.52 | 316 |
As described in upper table, chemical fertilizer of the prior art about acquisition time is 150 days, and each implementation of the present invention by contrast
Example chemical fertilizer has longer acquisition time, especially in embodiment three, because there is the chemical fertilizer multilayer to be sustained composite construction, effectively extends
Chemical fertilizer acquisition time, and then reduce chemical fertilizer and discharge number.
Finally it should be noted that the above embodiments are merely illustrative of the technical scheme of the present invention and are not intended to be limiting thereof, to the greatest extent
The present invention is described in detail with reference to above-described embodiment for pipe, it should be understood by a person of ordinary skill in the art that technology
Still the embodiment of the present invention can be modified after reading present specification by personnel or equivalent substitution, but this
A little modifications are changed within all without departing from the present patent application accompanying claims protection domain.
Claims (10)
1. a kind of slow release chemical fertilizer, it is characterised in that the chemical fertilizer includes the raw material of following parts by weight：Fertilizer 50-80 parts, complexing agent
10-25 parts, controlled release agent 5-15 parts, additive 5-15 parts and silicone oil 1-50 parts；The fertilizer is in nitrogenous fertilizer, phosphate fertilizer, potash fertilizer
It is one or more；The composition of the controlled release agent includes high molecular weight water soluble polymer, adsorbent and silicone oil.
2. slow release chemical fertilizer according to claim 1, it is characterised in that the complexing agent is selected from biofermentation compounded amino
One or more in acid, EDETATE SODIUM, sodium citrate salt, pyrophosphoric acid tetramine.
3. slow release chemical fertilizer according to claim 1, it is characterised in that the high molecular weight water soluble polymer is selected from modified day
One or more in right polymer, polyacrylamide, polyvinylpyrrolidone, PLA.
4. slow release chemical fertilizer according to claim 1, it is characterised in that the adsorbent is selected from diatomite, 100-400 mesh silicon
One or more in glue, 60-200 mesh charcoal bases.
5. slow release chemical fertilizer according to claim 1, it is characterised in that the additive is selected from sulfonic chloride, ten
One or more in dialkyl sulfonates, polypropylene glycol, mannitol.
6. slow release chemical fertilizer according to claim 1, it is characterised in that also include biological source fertilizer 5-15 in the chemical fertilizer
Part.
7. according to any described slow release chemical fertilizers of claim 1-6, it is characterised in that the slow release chemical fertilizer is multi-layer solid column
Pie structure.
8. slow release chemical fertilizer according to claim 7, it is characterised in that be additionally provided with asphalt mixtures modified by epoxy resin between each layer of slow release chemical fertilizer
Fat coating layer.
9. a kind of production technology of the slow release chemical fertilizer as described in claim 1-8 is any, it is characterised in that the production technology includes
Following steps：
Step 1：Take fertilizer, complexing agent to add tank diameter, the heating stirring 6-8 hours at 40-90 DEG C, add controlled release agent in 35-
1-2 hours are stirred at 100 DEG C；
Step 2：Take step 1 products obtained therefrom to add in comminutor, carry out returning charge, and add additive, be granulated, at 60-150 DEG C
At a temperature of dried, formed chemical fertilizer solid particle；
Step 3：Take chemical fertilizer solid particle in step 2 to add extruder, and add silicone oil, carry out extrusion molding, form solid
Chemical fertilizer block particle.
10. the production technology of slow release chemical fertilizer according to claim 9, it is characterised in that chemical fertilizer in the step 3 is taken, through squeezing
Swaging is into column pie chemical fertilizer block；Epoxy resin is coated on column pie chemical fertilizer block, covers in baking oven, is dried at 50-160 DEG C
Dry 1-10 hours, form epoxy resin integument；Take multiple outer layers that there is the column pie chemical fertilizer block of epoxy resin integument, through bonding
Agent bonds, and forms multi-layer solid column pie chemical fertilizer.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711031376.9A CN107778082A (en) | 2017-10-27 | 2017-10-27 | A kind of slow release chemical fertilizer and its production technology |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711031376.9A CN107778082A (en) | 2017-10-27 | 2017-10-27 | A kind of slow release chemical fertilizer and its production technology |
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| CN107778082A true CN107778082A (en) | 2018-03-09 |
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| CN201711031376.9A Pending CN107778082A (en) | 2017-10-27 | 2017-10-27 | A kind of slow release chemical fertilizer and its production technology |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108794230A (en) * | 2018-09-26 | 2018-11-13 | 汪添法 | A kind of safe and efficient microbial organic fertilizer and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020178772A1 (en) * | 2001-06-04 | 2002-12-05 | Hince Eric Christian | Solid-chemical compositions, geochemical binder system, and improved high-shear granulation process for both conventional and slow-release fertilizer and bioremediation nutrient compositions |
| CN1566034A (en) * | 2003-06-25 | 2005-01-19 | 中国石油化工股份有限公司 | Slow release/controlled release fertilizer for regulating and controlling crop nutrition all the time and preparation method thereof |
| CN1834072A (en) * | 2006-04-07 | 2006-09-20 | 哈尔滨市益农生化制品开发有限公司 | Fertilizer sustained release agent and mfg. method |
| CN106380311A (en) * | 2016-08-31 | 2017-02-08 | 浙江巨隆化肥有限公司 | Preparation method of slow-release fertilizer |
-
2017
- 2017-10-27 CN CN201711031376.9A patent/CN107778082A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020178772A1 (en) * | 2001-06-04 | 2002-12-05 | Hince Eric Christian | Solid-chemical compositions, geochemical binder system, and improved high-shear granulation process for both conventional and slow-release fertilizer and bioremediation nutrient compositions |
| CN1566034A (en) * | 2003-06-25 | 2005-01-19 | 中国石油化工股份有限公司 | Slow release/controlled release fertilizer for regulating and controlling crop nutrition all the time and preparation method thereof |
| CN1834072A (en) * | 2006-04-07 | 2006-09-20 | 哈尔滨市益农生化制品开发有限公司 | Fertilizer sustained release agent and mfg. method |
| CN106380311A (en) * | 2016-08-31 | 2017-02-08 | 浙江巨隆化肥有限公司 | Preparation method of slow-release fertilizer |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108794230A (en) * | 2018-09-26 | 2018-11-13 | 汪添法 | A kind of safe and efficient microbial organic fertilizer and preparation method thereof |
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Application publication date: 20180309 |