CN108264412A - A kind of special anticaking agent of sulphur ammonium and its preparation method and application - Google Patents
A kind of special anticaking agent of sulphur ammonium and its preparation method and application Download PDFInfo
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- CN108264412A CN108264412A CN201810175017.9A CN201810175017A CN108264412A CN 108264412 A CN108264412 A CN 108264412A CN 201810175017 A CN201810175017 A CN 201810175017A CN 108264412 A CN108264412 A CN 108264412A
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05C—NITROGENOUS FERTILISERS
- C05C3/00—Fertilisers containing other salts of ammonia or ammonia itself, e.g. gas liquor
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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
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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
- C05G3/20—Mixtures of one or more fertilisers with additives not having a specially fertilising activity for preventing the fertilisers being reduced to powder; Anti-dusting additives
-
- 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
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- Organic Chemistry (AREA)
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Abstract
The present invention provides special anticaking agents of a kind of sulphur ammonium and its preparation method and application.The anticaking agent is water-soluble liquid anticaking agent, specifically, anticaking agent composition is：Water：20%~50%, volatile solvent：10%~30%, film forming agent：20%~40%, medium crystallization agent：No more than 10%, surfactant：No more than 10%, crystalline substance control agent：No more than 10%, antifoaming agent：No more than 3%.The anticaking agent of the present invention not only effectively overcomes the use defect of finish and tablet anticaking agent, improves preventing blocking effect, while can also effectively reduce the whiting of ammonium sulfate fertilizer surface, dusting and the phenomenon that becomes mildewed.And preparation process is simple, efficient, and it is easy to use, it is suitble to preparation of industrialization, is conducive to promote and apply.
Description
Technical field
The invention belongs to fertilizer additive fields, and in particular to a kind of special anticaking agent of sulphur ammonium and preparation method thereof and should
With.
Background technology
Ammonium sulfate abbreviation sulphur ammonium, is commonly called as ammonium sulphate, is China's production and uses earliest nitrogen fertilizers, suitable for general soil
Earth and crop can make shoot and leaf growth vigorous, improve fruit quality and yield, and enhancing crop can make base to the resistivity of disaster
Fertilizer, top dressing and seed manure.
At present, domestic sulphur ammonium export volume is increasing year by year, and foreign countries require sulphur ammonium entirely water-soluble, therefore, can only use full water
Molten type anticaking agent.At present, domestic water-soluble anticaking agent is broadly divided into two class of liquid and powder.Powder water solubility anticaking agent
Chemical fertilizer crystal structure is mainly changed by inorganic salts and surfactant and physical isolation plays the role of anti-caking.Such is anti-
Agglomeration agent is mainly used for powder Water soluble fertilizer；Liquid anti-agglomeration agent is mainly formed with water, film forming agent, surfactant, and surface is lived
Property agent hydrophobic layer is formed on chemical fertilizer granule surface and changes chemical fertilizer granule crystal structure, film forming agent can play good physical isolation
Effect.Such anticaking agent has the advantages such as at low cost, easy to use, environmentally friendly, pollution-free to soil and crops.
It is fewer for the report of sulphur ammonium anticaking agent both at home and abroad at present.Zhengzhou University professor Zhang Baolin has developed a kind of water
Insoluble liquid anticaking agent, the anticaking agent are formed with water, film forming agent, surfactant, are mainly used in composite fertilizer's anti-caking
Block, anti-caking rate can reach 93.4%.CN102786358A discloses a kind of water-soluble liquid anticaking agent, the anticaking agent by
Water, low-carbon alcohols, surfactant, water soluble polymer composition, are primarily adapted for use in powder or crystalloid chemical fertilizer.Patent
CN101199921A is uniform with Gemini quaternary ammonium salt, anion surfactant, nonionic surfactant, polymer and water
A kind of water-soluble anticaking agent is made in mixing, and by surfactant oriented attachment, one layer of formation is fine and close to dredge the anticaking agent
Moisture film hinders to be in direct contact between chemical fertilizer granule, and achievees the purpose that anti-caking.Although the anticaking agent is suitable for granulated fertilizer,
But sulphur ammonium agglomeration problems can not be solved.
Invention content
In view of the above-mentioned problems of the prior art, the present invention researches and develops a kind of anticaking agent suitable for ammonium sulfate.
One of the objects of the present invention is to provide a kind of special anticaking agents of sulphur ammonium, not only effectively overcome finish and powder
The use defect of agent anticaking agent improves preventing blocking effect, while can also effectively reduce ammonium sulfate fertilizer whiting, dusting and length
Hair phenomenon.
The second object of the present invention is to provide a kind of preparation method of the special anticaking agent of sulphur ammonium, preparation method letter
Single, technology requires extremely low, it is only necessary to stir various raw materials to being uniformly dispersed, be greatly saved industrial consumption energy, be conducive to
The preparation of industrialization of anticaking agent.
The third object of the present invention is to provide a kind of application of the special anticaking agent of sulphur ammonium.
To achieve the above object, specifically the present invention relates to following technical schemes：
The first aspect of the invention provides a kind of special anticaking agent of sulphur ammonium, brilliant by water, film forming agent, brilliant control agent, matchmaker
The water-soluble liquid anticaking agent that agent, surfactant, volatile solvent and antifoaming agent form；
In the anticaking agent, water：20%~50%, volatile solvent：10%~30%, film forming agent：20%~40%,
Medium crystallization agent：No more than 10%, surfactant：No more than 10%, crystalline substance control agent：No more than 10%, antifoaming agent：No more than 3%.
The second aspect of the invention provides a kind of preparation method of the special anticaking agent of sulphur ammonium, the preparation method packet
Include following steps：
(1) after water is heated, surfactant, brilliant control agent, medium crystallization agent is added in into water successively, is stirred to whole dissolvings；
(2) antifoaming agent is proportionally added into, continues stirring to stopping heating after mixing；
(3) it treats that step (2) solution is cooled to room temperature, film forming agent and volatile solvent, stirring to mixing is added in into solution
Uniformly, anticaking agent is obtained.
The third aspect of the invention provides the application of above-mentioned anticaking agent, specifically, above-mentioned anticaking agent is preventing sulphur
Sour ammonium caking and/or the whiting of ammonium sulfate surface, dusting and the application in becoming mildewed.
Based on the application, the present invention provides one kind and prevents ammonium sulfate caking and/or the whiting of ammonium sulfate surface, dusting and become mildewed
Method, the step of the method includes above-mentioned anticaking agent is administered to ammonium sulfate.
Technical solution of the present invention has following advantageous effects：
(1) present invention is directed to water-soluble liquid side's agglomeration agent of ammonium sulfate, with the common oil-soluble anticaking agent phase in market
Than having at low cost, easy to use, environmental protection, preventing blocking effect good the advantages that pollution-free to soil and crops；
(2) anticaking agent of the invention is added to ammonium sulfate surface after being atomized by nozzle, and volatile solvent is rapid
Moisture in anticaking agent is taken away, active ingredient in the present invention is stayed in into sulphur ammonium particle surface；Volatile solvent can also be taken away simultaneously
Ammonia sulfate crystal partial moisture, so as to reduce the generation of ammonium sulfate caking；Further, film forming agent disperses to reticulate knot in water
Structure forms a floor height molecular film after being distributed to ammonium sulfate surface, so as to prevent the migration of moisture, prevents the generation of crystal brige,
Generate certain fertility slow release effect simultaneously；Surfactant also can form one layer of unimolecule on ammonium sulfate surface and dredge simultaneously
Water layer, so as to effectively inhibit ammonium sulfate with extraneous exchange of moisture and ammonium sulfate crystals to the capillary absorption power of moisture, prevention
Grain moisture absorption prevents dusting of luming and prevent, and then improves preventing blocking effect；And medium crystallization agent can effectively change sulphur ammonium crystal form, from
And inhibit ammonium sulfate Surface Crystallization, and then reduce ammonium sulfate whiting and the generation for the phenomenon that becomes mildewed, so as to improve product quality；Together
When, the hydrophilic radical of crystalline substance control agent participates in crystallization, can play the role of AF panel sulphur ammonium recrystallization, make crystallization loose, another
Aspect, the hydrophilic radical of crystalline substance control agent can be combined by intermolecular force with film forming agent and surfactant, participate in film forming, and
The hydrophobic grouping of crystalline substance control agent is then arranged in the outside of film forming agent and surfactant composition waterproof membrane, stops invading for outside moisture
Enter, so as to further improve anti-caking ability；
(3) each low in raw material price in the present invention, it is green safe pollution-free, meanwhile, pass through each anticaking agent of reasonable selection
Component so that the anticaking agent good water solubility finally obtained will not generate lamination, avoid use in the process because of ingredient unevenness
One, so as to influence its preventing blocking effect；Experiment proves that, each raw material components do not generate solid residue, so as to expand anti-caking simultaneously
The application range of block agent avoids the ammonium sulfate for spraying anticaking agent during applied to soilless culture caused by anticaking agent
Pipeline blockage；
(4) preparation process of anticaking agent of the invention is simple, efficient, easy to use, is suitble to preparation of industrialization, is conducive to
It promotes and applies.
Specific embodiment
It is noted that following detailed description is all illustrative, it is intended to provide further instruction to the application.It is unless another
It indicates, all technical and scientific terms used herein has usual with the application person of an ordinary skill in the technical field
The identical meanings of understanding.
It should be noted that term used herein above is merely to describe specific embodiment, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singulative
It is also intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " packet
Include " when, indicate existing characteristics, step, operation, device, component and/or combination thereof.
With reference to specific example, the present invention is further illustrated, and following instance is not right merely to the explanation present invention
Its content is defined.If the experiment actual conditions being not specified in embodiment, usually according to normal condition or according to reagent public affairs
The recommended condition of department；Reagent, consumptive material etc., are commercially available unless otherwise specified used in following embodiments.
As background technology is introduced, for prior art ammonium sulfate anticaking agent there are the problem of, the present invention proposes
A kind of ammonium sulfate anticaking agent and its preparation and application method.
The present invention an exemplary embodiment in, provide a kind of sulphur ammonium special anticaking agent, the anticaking agent by
The component composition of following mass fraction：Water：20%~50%, volatile solvent：10%~30%, film forming agent：20%~40%,
Medium crystallization agent：No more than 10%, surfactant：No more than 10%, crystalline substance control agent：No more than 10%, antifoaming agent：No more than 3%.
In the another exemplary embodiment of the present invention, volatile solvent is methanol, ethyl alcohol, acetone, methyl acetate, acetic acid second
It is one or more in ester, it is preferred that the volatile solvent is methanol.Methanol can be miscible with arbitrary proportion with water, so as to carry
The whole water solubility of high anticaking agent of the present invention, while volatility is high, by adjusting material rate relationship, the band in volatilization process
Walk the moisture in anticaking agent；
In the another exemplary embodiment of the present invention, film forming agent is white glue with vinyl, polyvinylpyrrolidone, polyvinyl alcohol, is gathered
It is one or more in acrylamide, carboxymethyl cellulose, it is preferred that the film forming agent is white glue with vinyl.White glue with vinyl, that is, poly-vinegar acid
Vinyl acetate is by the water-soluble polymer of the aggregated generation of vinylacetate, is formed be dispersed into reticular structure in water, is divided
A floor height molecular film is formed after being scattered to ammonium sulfate surface, so as to prevent the migration of moisture, prevents the generation of crystal brige, is led to simultaneously
The package to ammonium sulfate is crossed, so that generating certain fertility slow release effect；
The present invention another exemplary embodiment in, medium crystallization agent for manganese sulfate, sodium polyphosphate, one kind in sodium sulphate or
A variety of, medium crystallization agent can effectively change sulphur ammonium crystal form, so as to prevent ammonium sulfate Surface Crystallization, and then ammonium sulfate whiting and length occur
Hair phenomenon occurs, so as to improve product quality；Preferably, the medium crystallization agent is manganese sulfate；
In the another exemplary embodiment of the present invention, surfactant is nonionic surfactant, and surfactant selects
From in alkyl phenol polyoxyethylene ether, Span, Span polyoxyethylene ether, fatty alcohol polyoxyethylene ether
It is one or more.Alkyl phenol polyoxyethylene ether includes OP series emulsifier (condensation product of alkyl phenol and ethylene oxide) such as OP-
4th, OP-7, OP-10, OP-15, OP-20 etc. and NP series emulsifier such as NP-7, NP-10 etc.；Span (sapn system
Row) including S-20, S-40, S-60, S-80 etc.；Span polyoxyethylene ether (TWEEN Series) including Tween-20, spit
Temperature -40, Tween-60, Tween-80, Tween-85 etc.；Fatty alcohol polyoxyethylene ether is including AEO-5, AEO-7, AEO-9 etc..
In the another exemplary embodiment of the present invention, crystalline substance control agent is selected from dodecane sulfonate, lauryl sulfate, ten
It is one or more in dialkyl benzene sulfonate, it more can effectively solve the problem that the Surface Crystallization problem of ammonium sulfate, formation
Ammonium sulfate Surface Crystallization is less or does not have.
The addition of control agent of the invention brilliant is unsuitable excessively high, dosage can be 1%, 2%, 3%, 4, %, 5%, 6%, 7%,
8%, in preferred embodiment, the addition of crystalline substance control agent is 1%-5%.In highly preferred embodiment, crystalline substance control agent uses
Lauryl sulfate and dodecyl benzene sulfonate fiting effect are more preferable, and the two ratio is 1:When 1, sulphur ammonium anti-caking is imitated
Fruit is splendid；
In the another exemplary embodiment of the present invention, antifoaming agent is silicone emulsion, the fatty acid ester compounded object of higher alcohols, polyoxy
Ethylene polyoxypropylene pentaerythrite ether, polyoxyethylene polyoxy propyl alcohol amidogen ether, polypropylene glycerol aether and polyoxyethylene polyoxypropylene
It is one or more in glycerin ether, dimethyl silicone polymer；Preferably, the antifoaming agent be tributyl phosphate, tributyl phosphate
The bubble generated in preparation process can be significantly eliminated, so as to improve the stability of anticaking agent system；
The preferred embodiment of the present invention is a kind of special anticaking agent of sulphur ammonium, and the anticaking agent is by following quality
The component composition of score：Water 34%, methanol 24.5%, white glue with vinyl 30%, NP-10 3%, AEO-9 2%, manganese sulfate 2%, ten
Dialkyl benzene sulfonic acids sodium 2%, lauryl sodium sulfate 2%, tributyl phosphate 0.5%；
In the another exemplary embodiment of the present invention, a kind of preparation method of the special anticaking agent of sulphur ammonium is provided, including step
It is rapid as follows：
(1) after water is heated, surfactant, brilliant control agent, medium crystallization agent is added in into water successively, is stirred to whole dissolvings；
(2) antifoaming agent is proportionally added into, continues stirring to stopping heating after mixing；
(3) it treats that step (2) solution is cooled to room temperature, film forming agent and volatile solvent, stirring to mixing is added in into solution
Uniformly, anticaking agent is obtained.
Wherein, in step (1), heating temperature is 70~90 DEG C, it is preferred that heating temperature is 80 DEG C in the step (1)；
Heating temperature is too low, and dissolving is insufficient, and heating temperature is excessively high, not only increases energy consumption, while may also destroy material composition composition
Structure influences its preventing blocking effect；
In the another exemplary embodiment of the present invention, above-mentioned anticaking agent is preventing ammonium sulfate caking and ammonium sulfate surface general
In vain, dusting and the application in becoming mildewed.
Based on the application, the present invention provides one kind and prevents ammonium sulfate caking and/or the whiting of ammonium sulfate surface, dusting and become mildewed
Method, the step of the method includes above-mentioned anticaking agent is administered to ammonium sulfate.
In preferred embodiment, anticaking agent method of application of the present invention is：It is by metering pump that anticaking agent is defeated
Nozzle is sent to, is sprayed after being atomized by nozzle and is added to ammonium sulfate surface, the anticaking agent dosage (by weight) is sulphur
1.5~the 2.5 ‰ of sour ammonium weight.
Below by embodiment, the operation to the present invention is described in further detail.
Sulphur ammonium accelerated test procedures：
1st, in 3% water of sulphur ammonium surface even application, anticaking agent is added in after placing a period of time, is stirred evenly.
2nd, anticaking agent sulphur ammonium sample will be added to be put into the culture dish of diameter 6cm, counterweight in pressure, be put into 40 DEG C,
In the climatic chamber of 90% humidity, weight in pressure takes out after a period of time, dries test caking rate.Do blank control simultaneously
Experiment.
Embodiment 1
Water intaking 34% by mass percentage, methanol 24.5%, white glue with vinyl 30%, NP-10 3%, AEO-92%, matchmaker are brilliant
Agent 2%, dodecyl sodium naphthalene sulfonate 4%, tributyl phosphate 0.5% are prepared into anticaking agent.
Preparation method is as follows：
(1) after heating water to 80 DEG C, surfactant NP-10 and AEO-9, brilliant control agent dodecane are added in into water successively
Base sodium naphthalene sulfonate, medium crystallization agent are stirred to whole dissolvings；
(2) antifoaming agent tributyl phosphate is proportionally added into, continues stirring to stopping heating after mixing；
(3) it treats that step (2) solution is cooled to room temperature, film forming agent white glue with vinyl and volatile solvent methanol is added in into solution,
Stirring obtains anticaking agent to being uniformly mixed.
Wherein medium crystallization agent chooses manganese sulfate, sodium polyphosphate, sodium sulphate and is prepared into anticaking agent respectively, obtains aqua successively
1st, 3 three kinds of aqua 2, aqua anticaking agents, spray after being atomized by nozzle and are added to ammonium sulfate, specifically, anticaking agent dosage (is pressed
Weight meter) it is the 2 ‰ of ammonium sulfate weight, quickly tested.Experimental result such as the following table 1：
Table 1
| Anticaking agent | Aqua 1 | Aqua 2 | Aqua 3 | Blank |
| Caking rate (%) | 38.88 | 40.53 | 52.33 | 68.75 |
Test sulphur ammonium of the chemical fertilizer using the auspicious fertile industry production of Qinhuangdao gold.By upper table 1 it is found that medium crystallization agent uses manganese sulfate
Effect is preferable.
Embodiment 2
Water intaking 34%, methanol 24.5%, white glue with vinyl 30%, NP-10 3%, AEO-9 2%, sulfuric acid by mass percentage
Manganese 2%, brilliant control agent 4%, tributyl phosphate 0.5% are prepared into anticaking agent, and the preparation method is the same as that of Example 1.Wherein brilliant control agent point
Not Xuan Qu lauryl sodium sulfate, neopelex, dodecyl sodium sulfate, dodecyl sodium naphthalene sulfonate be respectively prepared
Anticaking agent is denoted as aqua 4, aqua 5, aqua 6, aqua 7 successively.It is quickly tested by embodiment 1, experimental result such as following table
2：
Table 2
| Anticaking agent | Aqua 4 | Aqua 5 | Aqua 6 | Aqua 7 | Blank |
| Caking rate (%) | 19.42 | 17.85 | 24.13 | 27.25 | 69.23 |
From experimental result it can be seen that lauryl sodium sulfate and neopelex are preferable to sulphur ammonium control crystalline substance effect.
Embodiment 3
Water intaking 34%, methanol 24.5%, white glue with vinyl 30%, NP-10 3%, AEO-92%, sulfuric acid by mass percentage
Anticaking agent is made in manganese 2%, brilliant control agent 4%, tributyl phosphate 0.5%, and the preparation method is the same as that of Example 1.Wherein brilliant control agent is ten
Two kinds of dialkyl benzene sulfonic acids sodium and lauryl sodium sulfate, by neopelex and lauryl sodium sulfate mass ratio 3:
1、1:1、1:The 3 three kinds of anticaking agents made respectively, are denoted as aqua 8, aqua 9, aqua 10, are quickly tested successively, experiment knot
Fruit such as the following table 3：
Table 3
| Anticaking agent | Aqua 8 | Aqua 9 | Aqua 10 | Blank |
| Caking rate (%) | 10.81 | 6.39 | 13.78 | 67.37 |
From experimental result it can be seen that when neopelex and lauryl sodium sulfate mass ratio are 1:When 1, prevent
Agglomeration agent effect is best.
Anticaking agent optimization formula is as follows：
Water 34%, methanol 24.5%, white glue with vinyl 30%, NP-10 3%, AEO-9 2%, manganese sulfate 2%, detergent alkylate
Sodium sulfonate 2%, lauryl sodium sulfate 2%, tributyl phosphate 0.5%；
Effect experiment
1. caking rate effect experiment：By the ammonium sulfate fertilizer handled through aqua 9 and untreated ammonium sulfate fertilizer, in the Qin
Gold auspicious fertile industry in emperor island carries out production experiment, and test specimen stacks 3 height, 1 ton every bag, unpack checking after placing 2 months
Experimental result.
Experimental result：It is 0.89% through the ammonium sulfate caking rate that aqua 9 is handled, ammonium sulfate surface is without crystallization, particle
Without whiting, dusting and (recrystallization) phenomenon that becomes mildewed；
Untreated ammonium sulfate caking rate is 45.6%, and the whiting of ammonium sulfate surface, dusting and the phenomenon that becomes mildewed are serious.
2. it is sustained fertilizer efficiency experiment：Ammonium sulfate nutrient release rate is tested using the experiment of conventional dynamic leaching, is tested
The results show that being higher by untreated ammonium sulfate 13.5% to handling obtained ammonium sulfate its nitrogen residual rate through aqua 9, show to lead to
The processing of the application anticaking agent is crossed, certain slow release effect is generated, extends ammonium sulfate fertilizer efficiency action time.
3. storage-stable is tested：The application anticaking agent aqua 9 is placed in progress storage-stable experiment at room temperature, it is real
Test result such as the following table 4：
Table 4
| Time | Room temperature condition |
| 1 month | Aqua stable system, no layering, no precipitation |
| 3 months | Aqua stable system, no layering, no precipitation |
| 6 months | Aqua stable system, no layering, no precipitation |
| 12 months | Aqua stable system has slight layering, no precipitation |
Result of the test shows that water-soluble anticaking agent property of the invention is stablized, and do not generate solid residue precipitation, so as to
It is enough effectively to expand its use scope, both suitable for soil cultivation crop, while it also is adapted for water planting etc..
The foregoing is merely the preferred embodiments of the application, are not limited to the application, for the skill of this field
For art personnel, the application can have various modifications and variations.It is all within spirit herein and principle, made any repair
Change, equivalent replacement, improvement etc., should be included within the protection domain of the application.
Claims (10)
1. a kind of special anticaking agent of sulphur ammonium, which is characterized in that the anticaking agent is made of the component of following mass fraction：
Water：20%~50%, volatile solvent：10%~30%, film forming agent：20%~40%, medium crystallization agent：No more than 10%, surface
Activating agent：No more than 10%, crystalline substance control agent：No more than 10%, antifoaming agent：No more than 3%.
2. a kind of special anticaking agent of sulphur ammonium as described in claim 1, which is characterized in that volatile solvent is methanol, ethyl alcohol,
It is one or more in acetone, methyl acetate, ethyl acetate, it is preferred that the volatile solvent is methanol.
3. a kind of special anticaking agent of sulphur ammonium as described in claim 1, which is characterized in that film forming agent is white glue with vinyl, polyethylene
It is one or more in pyrrolidones, polyvinyl alcohol, polyacrylamide, carboxymethyl cellulose, it is preferred that the film forming agent is white
Latex.
4. a kind of special anticaking agent of sulphur ammonium as described in claim 1, which is characterized in that medium crystallization agent is manganese sulfate, poly phosphorus
It is one or more in sour sodium, sodium sulphate, it is preferred that the medium crystallization agent is manganese sulfate.
5. a kind of special anticaking agent of sulphur ammonium as described in claim 1, which is characterized in that surfactant is non-ionic surface
Activating agent；
Preferably, surfactant is selected from alkyl phenol polyoxyethylene ether, Span, Span polyoxy second
It is one or more in alkene ether, fatty alcohol polyoxyethylene ether；
It is further preferred that alkyl phenol polyoxyethylene ether, which is selected from, includes OP series emulsifier, NP series emulsifiers；Sorbitan fatty acid
Ester, which is selected from, includes S-20, S-40, S-60, S-80；Span polyoxyethylene ether be selected from include Tween-20, tween-
40th, Tween-60, Tween-80, Tween-85；Fatty alcohol polyoxyethylene ether, which is selected from, includes AEO-5, AEO-7, AEO-9.
6. a kind of special anticaking agent of sulphur ammonium as described in claim 1, which is characterized in that crystalline substance control agent is selected from dodecyl sodium sulfonate
It is one or more in salt, lauryl sulfate, dodecyl benzene sulfonate,
Preferably, the addition of brilliant control agent is 1%-3%；
It is furthermore preferred that brilliant control agent is made of lauryl sulfate and dodecyl benzene sulfonate, the two ratio is 1:1.
7. a kind of special anticaking agent of sulphur ammonium as described in claim 1, which is characterized in that antifoaming agent is silicone emulsion, high-carbon
Polyol fatty acid ester complexes, polyoxyethylene polyoxypropylene pentaerythrite ether, polyoxyethylene polyoxy propyl alcohol amidogen ether, polyoxypropylene glyceryl
It is one or more in ether and polyoxyethylene polyoxypropylene glycerin ether, dimethyl silicone polymer；
Preferably, the antifoaming agent is tributyl phosphate.
8. a kind of special anticaking agent of sulphur ammonium as described in claim 1, which is characterized in that the anticaking agent is by following quality
The component composition of score：Water 34%, methanol 24.5%, white glue with vinyl 30%, NP-10 3%, AEO-9 2%, manganese sulfate 2%, ten
Dialkyl benzene sulfonic acids sodium 2%, lauryl sodium sulfate 2%, tributyl phosphate 0.5%.
9. the preparation method of the special anticaking agent of any one of the claim 1-8 sulphur ammoniums, which is characterized in that including step such as
Under：
(1) after water is heated, surfactant, brilliant control agent, medium crystallization agent is added in into water successively, is stirred to whole dissolvings；
(2) antifoaming agent is proportionally added into, continues stirring to stopping heating after mixing；
(3) it treats that step (2) solution is cooled to room temperature, film forming agent and volatile solvent is added in into solution, stir to being uniformly mixed,
Obtain anticaking agent；
Preferably, in step (1), heating temperature is 70~90 DEG C.
10. the special anticaking agent of any one of the claim 1-8 sulphur ammoniums is preventing ammonium sulfate caking and/or ammonium sulfate surface general
In vain, dusting and the application in becoming mildewed.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109928829A (en) * | 2019-03-26 | 2019-06-25 | 广东博科实业有限公司 | A kind of environment-friendly type fertilizer anti-caking emulsion and preparation method thereof |
| CN110511093A (en) * | 2019-09-29 | 2019-11-29 | 云南云叶化肥股份有限公司 | It is a kind of without dry granulating method compound fertilizer and preparation method thereof |
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| CN108264412B (en) | 2021-06-18 |
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