CN101773116B - Fast disintegrating emamectin benzoate and hexaflumuron water dispersible granules and manufacturing method thereof - Google Patents
Fast disintegrating emamectin benzoate and hexaflumuron water dispersible granules and manufacturing method thereof Download PDFInfo
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- CN101773116B CN101773116B CN2010101032660A CN201010103266A CN101773116B CN 101773116 B CN101773116 B CN 101773116B CN 2010101032660 A CN2010101032660 A CN 2010101032660A CN 201010103266 A CN201010103266 A CN 201010103266A CN 101773116 B CN101773116 B CN 101773116B
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Abstract
The invention discloses fast disintegrating emamectin benzoate and hexaflumuron water dispersible granule pesticide and a manufacturing method thereof. The emamectin benzoate and hexaflumuron water dispersible granule preparation comprises the following components in weight percentage: 0.1 to 50 percent of emamectin benzoate and hexaflumuron, 2 to 20 percent of dispersing agent, 5 to 15 percent of disintegrant, 0.1 to 5 percent of wetting agent and balance of filler. The manufacturing method comprises the following steps of: mixing the components except the stuffing in a ratio, crushing the mixed components, adding the balance of filler and mixing the crushed components and the filler; adding water to wet the mixture to manufacture the pesticide granules with a diameter of between 0.8 and 2 millimeters; and drying the granules and sieving the dried granules to obtain finished pesticide. The fast disintegrating emamectin benzoate and hexaflumuron water dispersible granules manufactured by the method of the invention have the advantage that the disintegrating speed is about 20 seconds, which is only 1/3 of the disintegrating speed of the pesticide product of the same kind available on the market at present, so the stirring time when the pesticide is used is greatly shortened and the working efficiency can be greatly improved for a user, particularly a farm and a unit using a large amount of the product.
Description
Technical field
The present invention relates to technical field of pesticide, specifically be meant a kind of first dimension salt and hexaflumuron water dispersible granule and manufacturing approach thereof.
Background technology
Water dispersible granules is meant disintegration and the granula of disperseing the back to use in water, is ground in the 1980s by Switzerland's vapour Jia Ji company of clinging at first and tries successfully, and sales volume increases year by year after the mid-80.This formulation outward appearance is a particle, and wherein active ingredient is generally 60-90%, put it in the water stir after, just as wetting powder, can dissolve equably and be dispersed in the water, therefore, it has the characteristics of wetting powder and emulsion.Analyze with the formulation physical property, water-dispersible granules is a kind of novel form that has superiority and competitiveness in the current formulations of pesticide most.The main composition of this formulation agricultural chemicals is generally pesticide active ingredient, dispersant, wetting agent, disintegrant and filler etc.First dimension salt is from the synthetic a kind of new and effective semisynthetic antibiotics insecticide of fermented product AVM B1; Has super-high-efficient; Low toxicity, noresidue, characteristics such as nuisanceless; It is active high to the larva of lepidopterous insects and other many insects and mite class, the double again action of contace poison of existing stomach poison function.Fluorine bell urea belongs to the benzoyl urea insecticide, is the synthetic inhibitor of chitin, has very high desinsection and ovicidal activity, and quick-acting, is mainly used in the multiple coleoptera of control, diptera, Homoptera insect, especially prevents and treats cotton bollworm.First dimension salt and fluorine bell urea blended are fine for the integrated control effect of insect, and therefore, a lot of producers all are mixed and made into pesticide granule with them.
The producer of domestic production fast disintegrating emamectin benzoate and hexaflumuron water dispersible granule mainly contains Shanghai Chinese mugwort Cohan Bioceuticals Inc. and Beijing Dashifeng Biotechnology Co., Ltd. etc. at present.But the pesticide water dispersible granule product that above-mentioned two companies produce still exists disintegration rate to reach the unfavorable shortcoming of suspensibility of active ingredient slowly.For example: 10.5% fast disintegrating emamectin benzoate and its disintegration time of hexaflumuron water dispersible granule that above-mentioned two companies produce are about about 2 minutes or 1 minute, and disintegration rate is slow and the effective ingredient suspensibility is also bad.
Summary of the invention
It is very fast relatively that the problem that the present invention need solve provides a kind of disintegration rate, high, suspend uniform fast disintegrating emamectin benzoate and hexaflumuron water dispersible granule of effective ingredient suspensibility after the disintegration, and the manufacturing approach of this agricultural chemicals is provided.
In order to address the above problem the technical scheme that the present invention adopts be: a kind of fast disintegrating emamectin benzoate and hexaflumuron water dispersible granule are provided; Comprise by weight percentage: the wetting agent that the pesticide active ingredient first of 0.1-50% dimension salt and fluorine bell urea, the helping of the dispersant of 2-20%, 5-15% collapse agent, 0.1-8% and the filler of surplus.
Preferably, the percentage composition of pesticide active ingredient is 5-10%, and the percentage composition of dispersant is 5-15%.
Concrete, described dispersant comprises one or more among alkyl naphthalene sulfonic acid condensation polymer TERSPERSE 2425, alkyl naphthalene sulfonic acid polycondensation sodium salt Morwet D-425, polycarboxylic acid salt TERSPERSE 2700, the di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate NNO.Said helping collapsed agent and comprised in glucose and the urea one or both.Said wetting agent comprises one or more among the mixture M orwet EFW, Sulfonates anion surfactant TERWET 1004, anion wetting agent W-04 of alkylnaphthalene sulfonate and anion wetting agent.Said filler comprises one or more in kaolin, corn starch, the diatomite.
The manufacturing approach of above-mentioned fast disintegrating emamectin benzoate and hexaflumuron water dispersible granule, step is:
(1), with pesticide active ingredient first dimension salt and fluorine bell urea, dispersant, wetting agent and help and collapse agent, add in the double helix cone blender according to the part by weight in the prescription and mix;
(2), the above-mentioned material that mixes is pulverized with the fluidized bed type airslide disintegrating mill;
(3), in second cone blender, material that crushes and filler are proportionally mixed;
(4), the material that mixes put into adds the wet device, add entry and mix;
The material that (5), will add after wetting carries out granulation;
(6), the particle of making carries out drying in boiling drier;
(7), oven dry particle well sieves with vibratory sieve, and under the environment of drying, packs with particles packing machine.
Preferably, filler employing particle diameter is the particulate material of 30 μ m～60 μ m in the said step (3), and material powder particle diameter described in the step (2) is below the 25 μ m; The granulation particle diameter is 0.8-2mm described in the step (5); Baking temperature is 50-85 ℃ in the said step (8).
Beneficial effect of the present invention is: fast disintegrating emamectin benzoate and its disintegration rate of hexaflumuron water dispersible granule agricultural chemicals of adopting the method for the invention to produce are about 20 seconds; / 3rd of a similar Pesticidal products disintegration rate that only is equivalent to generally to sell in the market; Shorten the mixing time when using greatly, particularly use the farm of this product, unit obviously to increase work efficiency in enormous quantities for the user; And the suspensibility after the said Pesticidal products disintegration in water is high, suspends evenly stable performance simultaneously, reliable.
Embodiment
Disclosed fast disintegrating emamectin benzoate of the present invention and hexaflumuron water dispersible granule are through rational component formula and special process for machining and manufacturing; Make this Pesticidal products on the basis that guarantees good basic insecticidal properties, have ultrashort disintegration time; And in water, have good suspensibility after the disintegration, so its this formulation of pesticide and manufacturing approach thereof all are the claimed objects of the present invention.
Described fast disintegrating emamectin benzoate and hexaflumuron water dispersible granule comprise by weight percentage: the wetting agent that the pesticide active ingredient first of 0.1-50% dimension salt and fluorine bell urea, the helping of the dispersant of 2-20%, 5-15% collapse agent, 0.1-8% and the filler of surplus.
Wherein, can adopt the alkyl naphthalene sulfonic acid condensation polymer, for example TERSPERSE 2425; Perhaps alkyl naphthalene sulfonic acid polycondensation sodium salt, for example Morwet D-425, perhaps polycarboxylic acid salt; For example TERSPERSE 2700, and perhaps di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate NNO also can be with two or more mix use in the above-mentioned dispersant as dispersant; It accounts for the 2-20% of agricultural chemicals finished product total weight percent, and it is dispersed preferably that the agricultural chemicals finished product is had.If dispersant is very few, can influence pesticidal properties, such as pesticide activity; And if too high levels is unfavorable for the disintegration of agricultural chemicals, and influential to processing technology.The percentage composition of dispersant is generally 2-20%, is preferably 5-15%.
Said helping collapsed agent and can be adopted in glucose and the urea one or both.
Wetting agent is a kind of commonplace insecticides adjuvant, can strengthen soup and elaborate and adhewsive action at plant surface, and help dispersant to bring into play better effect.To specifying crop and agricultural chemicals, it is crucial selecting a kind of good wetting agent.The mixture of any one or a few among the mixture M orwet EFW of employing alkylnaphthalene sulfonate of wetting agent described in the present invention and anion wetting agent, Sulfonates anion surfactant TERWET 1004, the anion wetting agent W-04.The scope that said wetting agent accounts for the finished pesticide percentage by weight is 0.1-8%, guarantees can have good adhesive force with the plant leaf blade surface when finished pesticide is used, and drug effect can be given full play to.
Said filler can adopt one or more in kaolin, corn starch, the diatomite.
The manufacturing approach of above-mentioned fast disintegrating emamectin benzoate and hexaflumuron water dispersible granule is following:
1. at first first is tieed up salt and fluorine bell urea, dispersant, wetting agent and helped and collapse agent, add in the double helix cone blender according to the part by weight in the prescription and mix;
2. the more above-mentioned material that mixes is sent into the fluidized bed type airslide disintegrating mill and pulverize, require grinding particle size more than 600 orders, promptly powder particles particle footpath is below 25 μ m;
3. the above-mentioned material that crushes is put into second cone blender, add filler according to formula rate and mix again;
4. the material that mixes is put into and added the wet device, add the water mixing and add wet;
5. the material that will add after wetting carries out granulation, and require particle diameter to be controlled between the 0.8-2mm this moment, and this particle size is easy to production and processing, and has good water dispersible and disintegrative, and preferred particle diameter is 0.8-1mm;
6. the particle of making is sent into and is carried out drying in the boiling drier, and baking temperature is 50-85 ℃;
7. the particle that oven dry is good sieves with vibratory sieve, and under the environment of drying, packs with particles packing machine.
The method of the invention is different from the manufacturing approach of the pesticide water dispersible granules of in the prior art the disposable together mixing of whole compositions being pulverized; But pesticide combination that earlier will be except that filler mix pulverize after; Add filler again and mix, and the packing material size that adds is limited.Be that filler employing particle diameter 98% is the elementary buying raw material of 30 μ m～60 μ m, add without pulverizing directly.If filler is pulverized the back once more and used, particle diameter is too small, and the microcellular structure that its particle surface contacts with water is less, is unfavorable for the infiltration of water, causes disintegration rate slow.Like the suspension time of the excessive same shadow carrier of fruit granule in water.Adopt the filler of such particle diameter that the neat rate of finished particle is improved simultaneously.
The powder particle diameter of material described in the step 2 need be controlled at below the 25 μ m, if this moment, particle diameter was crossed affects pesticide efficacy and suspensibility, particle diameter is preferably 10 μ m.
Baking temperature is controlled at and is 50-85 ℃ in the step 6, and the bad meeting of this baking temperature control influence the suspensibility of agricultural chemicals and the decomposition of active ingredient.
Embodiment 1
By weight percentage; Get 2% first dimension salt and 30% fluorine bell urea, the dispersant that 10% TERSPERSE2425 and Morwet D-425 mixture are formed, 15% glucose and urea, 5% TERWET 1004 adding double helix cone blenders mix, pulverize; The kaolin of adding 20% continues to mix as filler; Mixture adds water and adds that to make particle diameter after wet be the pesticide granules between the 0.8-2mm; This particle is carried out drying, be made for finished pesticide after the screening.
First dimension salt and fluorine bell urea water-dispersible grain using this prescription and explained hereafter to come out have quickly disintegrated characteristic, and it is following that it detects index:
| Test item | Index |
| Moisture | ≤3％ |
| Suspensibility (measuring) according to GB/T 14825-93 method | ≥90％ |
| Dispersed | ≥70％ |
| Disintegration time (S) | ≤20 |
| Heat storage stability (measuring) according to GB/T 19136-2003 method | Qualified |
Wherein the disintegration time method for measuring is: to the 100ml tool plug graduated cylinder that contains 90ml distilled water (in high 22.5cm; Internal diameter 28cm) in, under 25 ℃, adds pesticide sample particle 0.5g, clamp the graduated cylinder middle part afterwards; Clog the graduated cylinder mouth; Graduated cylinder is rotated around the center with the speed of 8r/min, and up to sample disintegration fully in water, the used time is disintegration time.Following examples method of testing is identical.
Embodiment 2:
By weight percentage; Get the fluorine bell urea of 1% first dimension salt and 20%, the dispersant that 20% TERSPERSE2425 and Morwet D-425 mixture are formed, 10% glucose and urea, 5% TERWET 1004 adding double helix cone blenders mix, pulverize; The corn starch that adds surplus continues to mix as filler; Mixture adds water and adds that to make particle diameter after wet be the pesticide granules between the 0.8-2mm; This particle is carried out drying, be made for finished pesticide after the screening.
First dimension salt and fluorine bell urea water-dispersible grain using this prescription and explained hereafter to come out have quickly disintegrated characteristic, and it is following that it detects index:
| Test item | Index |
| Moisture | ≤3％ |
| Suspensibility (measuring) according to GB/T 14825-93 method | ≥75％ |
| Dispersed | ≥72％ |
| Disintegration time (S) | ≤15 |
| Heat storage stability (measuring) according to GB/T 19136-2003 method | Qualified |
Embodiment 3:
By weight percentage, get the fluorine bell urea of 0.5% first dimension salt and 10%, the dispersant that 15% NNO and TERSPERSE 2700 mixtures are formed, 10% glucose, 0.5% TERWET1004 adding double helix cone blender mix, pulverize; The diatomite that adds surplus continues to mix as filler; Mixture adds water and adds that to make particle diameter after wet be the pesticide granules between the 0.8-2mm; This particle is carried out drying, be made for finished pesticide after the screening.
First dimension salt and fluorine bell urea water-dispersible grain using this prescription and explained hereafter to come out have quickly disintegrated characteristic, and it is following that it detects index:
| Test item | Index |
| Moisture | ≤3％ |
| Suspensibility (measuring) according to GB/T 14825-93 method | ≥75％ |
| Dispersed | ≥74％ |
| Disintegration time (S) | ≤15 |
| Heat storage stability (measuring) according to GB/T 19136-2003 method | Qualified |
Embodiment 4:
By weight percentage, get 3% first dimension salt and 10% fluorine bell urea, the dispersant that 18% NNO and TERSPERSE 2700 mixtures are formed, 5% glucose and urea, 1% TERWET1004 adding double helix cone blender mix, pulverize; The kaolin and the corn starch that add surplus continue to mix as filler; Mixture adds water and adds that to make particle diameter after wet be the pesticide granules between the 1mm; This particle is carried out drying, be made for finished pesticide after the screening.
First dimension salt and fluorine bell urea water-dispersible grain using this prescription and explained hereafter to come out have quickly disintegrated characteristic, and it is following that it detects index:
| Test item | Index |
| Moisture | ≤3％ |
| Suspensibility (measuring) according to GB/T 14825-93 method | ≥75％ |
| Dispersed | ≥74％ |
| Disintegration time (S) | ≤10 |
| Heat storage stability (measuring) according to GB/T 19136-2003 method | Qualified |
Embodiment 5:
By weight percentage; Get 5% first dimension salt and 20% fluorine bell urea, the dispersant that 8% TERSPERSE2425 and Morwet D-425 mixture are formed, 8% glucose and urea, 2% TERWET 1004 adding double helix cone blenders mix, pulverize; The kaolin that adds surplus continues to mix as filler; Mixture adds water to be added and makes the pesticide granules that particle diameter is 1mm after wet; This particle is carried out drying, be made for finished pesticide after the screening.
First dimension salt and fluorine bell urea water-dispersible grain using this prescription and explained hereafter to come out have quickly disintegrated characteristic, and it is following that it detects index:
| Test item | Index |
| Moisture | ≤3％ |
| Suspensibility (measuring) according to GB/T 14825-93 method | ≥75％ |
| Dispersed | ≥70％ |
| Disintegration time (S) | ≤10 |
| Heat storage stability (measuring) according to GB/T 19136-2003 method | Qualified |
Embodiment 6:
By weight percentage; Get 3% first dimension salt and 15% fluorine bell urea, the dispersant that 6% TERSPERSE2425 and Morwet D-425 mixture are formed, 12% glucose and urea, 3% TERWET 1004 adding double helix cone blenders mix, pulverize; The kaolin and the diatomite that add surplus continue to mix as filler; Mixture adds water to be added and makes the pesticide granules that particle diameter is 1mm after wet; This particle is carried out drying, be made for finished pesticide after the screening.
First dimension salt and fluorine bell urea water-dispersible grain using this prescription and explained hereafter to come out have quickly disintegrated characteristic, and it is following that it detects index:
| Test item | Index |
| Moisture | ≤3％ |
| Suspensibility (measuring) according to GB/T 14825-93 method | ≥75％ |
| Dispersed | ≥70％ |
| Disintegration time (S) | ≤10 |
| Heat storage stability (measuring) according to GB/T 19136-2003 method | Qualified |
Claims (7)
1. fast disintegrating emamectin benzoate and hexaflumuron water dispersible granule comprise by weight percentage: the wetting agent that pesticide active ingredient first dimension salt and the fluorine bell urea of 0.1-50%, the helping of the dispersant of 2-20%, 5-15% collapse agent, 0.1-8% and the filler of surplus;
Described dispersant is selected from one or more among alkyl naphthalene sulfonic acid condensation polymer TERSPERSE 2425, alkyl naphthalene sulfonic acid polycondensation sodium salt Morwet D-425, polycarboxylic acid salt TERSPERSE 2700, the di-2-ethylhexylphosphine oxide tea sodium sulfonate NNO;
Said helping collapsed agent and is selected from glucose and the urea one or both; Said filler comprises one or more in kaolin, corn starch, the diatomite;
Said wetting agent is selected from one or more among the mixture M orwet EFW, Sulfonates anion surfactant TERWET 1004, anion wetting agent W-04 of alkylnaphthalene sulfonate and anion wetting agent;
Said filler is selected from one or more in kaolin, corn starch, the diatomite.
2. fast disintegrating emamectin benzoate according to claim 1 and hexaflumuron water dispersible granule; It is characterized in that: comprise by weight percentage: the wetting agent that the pesticide active ingredient first of 5-10% dimension salt and fluorine bell urea, the helping of the dispersant of 5-10%, 5-15% collapse agent, 0.1-8% and the filler of surplus.
3. require the manufacturing approach of described fast disintegrating emamectin benzoate and hexaflumuron water dispersible granule according to aforesaid right, step is:
(1), with pesticide active ingredient first dimension salt and fluorine bell urea, dispersant, wetting agent and help and collapse agent, add in the double helix cone blender according to the part by weight in the prescription and mix;
(2), the above-mentioned material that mixes is pulverized with the fluidized bed type airslide disintegrating mill;
(3), in second cone blender, material that crushes and filler are proportionally mixed;
(4), the material that mixes put into adds the wet device, add entry and mix;
The material that (5), will add after wetting carries out granulation;
(6), the particle of making carries out drying in boiling drier;
(7), oven dry particle well sieves with vibratory sieve, and under the environment of drying, packs with particles packing machine.
4. the manufacturing approach of fast disintegrating emamectin benzoate according to claim 3 and hexaflumuron water dispersible granule is characterized in that: filler employing particle diameter is the raw material of 30 μ m-60 μ m in the said step (3).
5. the manufacturing approach of fast disintegrating emamectin benzoate according to claim 4 and hexaflumuron water dispersible granule is characterized in that: material powder particle diameter described in the step (2) is below the 25 μ m.
6. the manufacturing approach of fast disintegrating emamectin benzoate according to claim 5 and hexaflumuron water dispersible granule is characterized in that: baking temperature is 50-85 ℃ in the said step (6).
7. the manufacturing approach of fast disintegrating emamectin benzoate according to claim 6 and hexaflumuron water dispersible granule is characterized in that: the granulation particle diameter is 0.8-2mm described in the step (5).
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| CN106035356A (en) * | 2016-06-06 | 2016-10-26 | 南通伟德动力电池研究所（普通合伙） | Preparation method for trunk injecting microcapsule pesticide for controlling Bursaphelenchus xylophilus |
| CN111567544B (en) * | 2020-05-14 | 2021-12-03 | 河北威远生物化工有限公司 | Formula for rapidly disintegrating water dispersible granules of efficient benzoyl urea insecticide and preparation method thereof |
| CN113243382A (en) * | 2021-05-18 | 2021-08-13 | 江苏东南植保有限公司 | Emamectin benzoate and hexaflumuron water dispersible granule and preparation method and preparation device thereof |
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| CN101518242A (en) * | 2008-02-28 | 2009-09-02 | 北京绿色农华植保科技有限责任公司 | Emamectin benzoate-hexaflumuron water dispersible granule and preparation method thereof |
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