CN109430288A - A kind of 500g/L terbufos benzthiazuron suspending agent and preparation method thereof - Google Patents
A kind of 500g/L terbufos benzthiazuron suspending agent and preparation method thereof Download PDFInfo
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- CN109430288A CN109430288A CN201910001348.5A CN201910001348A CN109430288A CN 109430288 A CN109430288 A CN 109430288A CN 201910001348 A CN201910001348 A CN 201910001348A CN 109430288 A CN109430288 A CN 109430288A
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- tebuthiuron
- suspending agent
- thickener
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N47/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid
- A01N47/08—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid the carbon atom having one or more single bonds to nitrogen atoms
- A01N47/28—Ureas or thioureas containing the groups >N—CO—N< or >N—CS—N<
- A01N47/36—Ureas or thioureas containing the groups >N—CO—N< or >N—CS—N< containing the group >N—CO—N< directly attached to at least one heterocyclic ring; Thio analogues thereof
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
- A01N25/02—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests containing liquids as carriers, diluents or solvents
- A01N25/04—Dispersions, emulsions, suspoemulsions, suspension concentrates or gels
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- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Dentistry (AREA)
- Plant Pathology (AREA)
- Engineering & Computer Science (AREA)
- Pest Control & Pesticides (AREA)
- Agronomy & Crop Science (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Environmental Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Toxicology (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Abstract
The present invention discloses a kind of 500g/L terbufos benzthiazuron suspending agent and preparation method thereof, is related to pesticide and preparation field；In the present invention in 500g/L spy's tebuthiuron suspending agent formula as mass fraction, tebuthiuron raw medicine 45-52% including purity >=97%, dispersing agent 7-10%, preservative 0.4-0.6%, thickener 0.2-2%, antifreezing agent 2-4%, defoaming agent 0.6-1%, remaining as water, by tebuthiuron raw medicine, dispersing agent, preservative and antifreezing agent according to formula composition after mixing, just crush, it adds grinding bead and water carries out secondary grinding, then thickener is added to be ground three times, it is eventually adding defoaming agent, it is ground, discharging, suspensibility is higher than 96% to obtained 500g/L spy's tebuthiuron suspending agent finished product after measured, resolution ratio is lower than 0.6%；Meet country efficient about development, low toxicity, safety, environment amenable new pesticide structural adjustment policy.
Description
Technical field
The present invention discloses a kind of suspending agent and preparation method thereof, is related to pesticide and preparation field；It is specifically a kind of
500g/L terbufos benzthiazuron suspending agent and preparation method thereof.
Background technique
Terbufos benzthiazuron is a kind of natural disposition ureas broad spectrum weeding agent of going out for preventing and kill off draft and gramineae plant, is inhaled by root
It receives, then conducts to stem and leaf, inhibit photosynthesis, be mainly used for preventing and kill off bare place weeds, the shrub in pasture area, sugarcane
The grass family and broadleaf weeds of Tanaka.As a kind of wide spectrum, herbicide that dosage is gradually increased, in agriculture weeding practice,
Cost of labor can be reduced using terbufos benzthiazuron in large quantities, reduce agriculture sheet, improve work efficiency, promote the popularization of global no-tillage technology with
Using.
The present invention provides a kind of 500g/L terbufos benzthiazuron suspending agent and preparation method thereof, and the positioning of dosage form fully considers
To the environmental-friendly characteristic of water baseization preparation, meet country efficient about development, low toxicity, safety, environment amenable Novel rural
Medicine structural adjustment policy, and as a kind of steriland herbicide, terbufos benzthiazuron is organic supplement to herbicide kind,
It is suitble to promote and apply.
Summary of the invention
The present invention is directed to problem of the prior art, provides a kind of 500g/L terbufos benzthiazuron suspending agent and preparation method thereof,
It has broad application prospects.
Concrete scheme proposed by the present invention is:
A kind of 500g/L terbufos benzthiazuron suspending agent:
In 500g/L spy's tebuthiuron suspending agent formula as mass fraction, the tebuthiuron raw medicine 45- including purity >=97%
52%, dispersing agent 7-10%, preservative 0.4-0.6%, thickener 0.2-2%, antifreezing agent 2-4%, defoaming agent 0.6-1% are remained
Yu Weishui,
After mixing according to formula composition by tebuthiuron raw medicine, dispersing agent, preservative and antifreezing agent, it carries out just crushing,
It adds grinding bead and water carries out secondary grinding, thickener is then added and is ground three times, is eventually adding defoaming agent, is ground
Mill, discharging, suspensibility is higher than 96% to obtained 500g/L spy's tebuthiuron suspending agent finished product after measured, and resolution ratio is lower than 0.6%.
In the suspending agent in 500g/L spy's tebuthiuron suspending agent formula as mass fraction, including purity >=97%
Tebuthiuron raw medicine 46-48%, dispersing agent 8-9%, preservative 0.4-0.6%, thickener 0.4-1%, antifreezing agent 3-4%, defoaming
Agent 0.7-0.9%, remaining as water.
In the suspending agent thickener be xanthan gum, aluminum magnesium silicate, Arabic gum, in CMC, PVA and polyacrylic acid
One or more mixing.
Antifreezing agent is that one or more of ethylene glycol, propylene glycol, glycerine and polyethylene glycol are mixed in the suspending agent
It closes.
Dispersing agent includes anion non-ionic composite emulsifying dispersant, Sulfates anion-in the suspending agent
Emulsifying dispersant and Benzenesulphonate anionic dispersing agent.
Anion non-ionic composite emulsifying dispersant and Sulfates anionic emulsion dispersion in the suspending agent
The ratio between the sum of both agent mass fraction and the mass fraction of Benzenesulphonate anionic dispersing agent are 3/5-1.
A kind of preparation method of 500g/L terbufos benzthiazuron suspending agent:
As mass fraction according to 500g/L spy's tebuthiuron suspending agent formula: the tebuthiuron raw medicine including purity >=97%
45-52%, it dispersing agent 7-10%, preservative 0.4-0.6%, thickener 5-8%, antifreezing agent 2-4%, defoaming agent 0.6-1%, remains
Yu Weishui,
After mixing by tebuthiuron raw medicine, dispersing agent, preservative and antifreezing agent, it carries out just crushing, adds grinding bead
Secondary grinding is carried out with water, thickener is then added and is ground three times, is eventually adding defoaming agent, is ground, discharges, and right
500g/L spy's tebuthiuron suspending agent finished product carries out quality control, and suspensibility is higher than 96%, and resolution ratio is lower than 0.6%.
Grinding bead is added according to grinding bead and quality of material ratio 1-1.2:1 in the method, and it is secondary that water progress is added
Grind 1.5-2h.
Thickener is added in the method and is ground to 1.5-2h three times, is eventually adding defoaming agent, carries out grinding 5-
10min, discharging.
In the method after mixing by tebuthiuron raw medicine, dispersing agent, preservative and antifreezing agent, it carries out just crushing
10-20min。
Usefulness of the present invention is:
The method of the present invention provides a kind of 500g/L terbufos benzthiazuron suspending agent and preparation method thereof, terbufos benzthiazuron suspending agent
It is prepared using the formula of tebuthiuron raw medicine and auxiliary agent, is ground by four times, obtain terbufos benzthiazuron suspending agent, and ensure that suspension
Rate is higher than 96%, and resolution ratio is lower than 0.6%；
Wherein the content of raw medicine helps to improve suspensibility with dispersing agent rational proportion in the present invention, reduces resolution ratio,
And after just broken, grinding bead and water is added, the secondary grinding reinforced is added thickener and carries out three times after secondary grinding
Grinding helps to improve suspensibility, reduces resolution ratio, is eventually adding defoaming agent, is ground, and discharges, stabilizes of the invention
The quality of suspending agent guarantees that suspensibility is higher than 96%, and resolution ratio is lower than 0.6%.
Detailed description of the invention
Fig. 1 is the method for the present invention process flow diagram；
Fig. 2 is the chromatogram of 500g/L terbufos benzthiazuron suspending agent of the present invention.
Specific embodiment
The present invention provides a kind of 500g/L terbufos benzthiazuron suspending agent:
In 500g/L spy's tebuthiuron suspending agent formula as mass fraction, the tebuthiuron raw medicine 45- including purity >=97%
52%, dispersing agent 7-10%, preservative 0.4-0.6%, thickener 0.2-2%, antifreezing agent 2-4%, defoaming agent 0.6-1% are remained
Yu Weishui,
After mixing according to formula composition by tebuthiuron raw medicine, dispersing agent, preservative and antifreezing agent, it carries out just crushing,
It adds grinding bead and water carries out secondary grinding, thickener is then added and is ground three times, is eventually adding defoaming agent, is ground
Mill, discharging, suspensibility is higher than 96% to obtained 500g/L spy's tebuthiuron suspending agent finished product after measured, and resolution ratio is lower than 0.6%.
A kind of preparation method of 500g/L terbufos benzthiazuron suspending agent corresponding with above-mentioned suspending agent is provided simultaneously:
As mass fraction according to 500g/L spy's tebuthiuron suspending agent formula: the tebuthiuron raw medicine including purity >=97%
45-52%, dispersing agent 7-10%, preservative 0.4-0.6%, thickener 0.2-2%, antifreezing agent 2-4%, defoaming agent 0.6-1%,
Remaining as water,
After mixing by tebuthiuron raw medicine, dispersing agent, preservative and antifreezing agent, it carries out just crushing, adds grinding bead
Secondary grinding is carried out with water, thickener is then added and is ground three times, is eventually adding defoaming agent, is ground, discharges, and right
500g/L spy's tebuthiuron suspending agent finished product carries out quality control, and suspensibility is higher than 96%, and resolution ratio is lower than 0.6%.
The present invention will be further explained below with reference to the attached drawings and specific examples, so that those skilled in the art can be with
It more fully understands the present invention and can be practiced, but illustrated embodiment is not as a limitation of the invention.
Embodiment 1
A kind of 500g/L terbufos benzthiazuron suspending agent:
In 500g/L spy's tebuthiuron suspending agent formula as mass fraction, the tebuthiuron raw medicine including purity >=97%
45%, dispersing agent 7%, preservative 0.4%, thickener 2%, antifreezing agent 2%, defoaming agent 0.6%, remaining as water, wherein dispersing
Anion non-ionic composite emulsifying dispersant 3%, Sulfates anionic emulsifying dispersant 1% and benzenesulfonates in agent
Anionic dispersing agents 3%, thickener are xanthan gum, and antifreezing agent is propylene glycol, and defoaming agent is organic silicon defoamer, and preservative is card
Pine,
It is added in sand milling kettle and mixes after tebuthiuron raw medicine, dispersing agent, preservative and antifreezing agent are measured according to formula composition
Uniformly, it is carried out just crushing 20min with high speed shear dispersion machine, then the glass grinding pearl progress two of 3-4mm is added in sand milling kettle
Secondary grinding, grinding bead and quality of material ratio 1:1, sand milling kettle collet are passed through condensed water and carry out secondary grinding 1.5h, are then added yellow
Virgin rubber is ground to 2h three times, is eventually adding organic silicon defoamer, carries out grinding 10min, the 500g/L spy's fourth to discharge
Suspensibility is higher than 96% to the grand suspending agent finished product of thiophene after measured, and resolution ratio is lower than 0.6%.
Embodiment 2
In 500g/L spy's tebuthiuron suspending agent formula as mass fraction, the tebuthiuron raw medicine including purity >=97%
46.5%, dispersing agent 8%, preservative 0.5%, thickener 1.2%, antifreezing agent 3%, defoaming agent 0.8%, remaining as water, wherein
Anion non-ionic composite emulsifying dispersant 4%, Sulfates anionic emulsifying dispersant 1% and benzene sulfonic acid in dispersing agent
Salt anionic dispersing agents 3%, thickener are xanthan gum, and antifreezing agent is ethylene glycol, and defoaming agent is organic silicon defoamer, preservative
For Kathon CG,
It is added in sand milling kettle and mixes after tebuthiuron raw medicine, dispersing agent, preservative and antifreezing agent are measured according to formula composition
Uniformly, it is carried out just crushing 18min with high speed shear dispersion machine, then the glass grinding pearl progress two of 3-4mm is added in sand milling kettle
Secondary grinding, grinding bead and quality of material ratio 1.2:1, sand milling kettle collet are passed through condensed water and carry out secondary grinding 1.6h, be then added
Xanthan gum is ground to 1.5h three times, is eventually adding organic silicon defoamer, carries out grinding 5min, and the 500g/L to discharge is special
Suspensibility is higher than 96% to tebuthiuron suspending agent finished product after measured, and resolution ratio is lower than 0.6%.
Embodiment 3
In 500g/L spy's tebuthiuron suspending agent formula as mass fraction, the tebuthiuron raw medicine including purity >=97%
47.5%, dispersing agent 9%, preservative 0.6%, thickener 1%, antifreezing agent 4%, defoaming agent 0.9%, remaining as water, wherein dividing
Anion non-ionic composite emulsifying dispersant 4%, Sulfates anionic emulsifying dispersant 2% and benzene sulfonate in powder
Anionoid dispersing agent 3%, thickener are xanthan gum and Arabic gum, and antifreezing agent is glycerine, and defoaming agent is organosilicon defoaming
Agent, preservative are Kathon,
It is added in sand milling kettle and mixes after tebuthiuron raw medicine, dispersing agent, preservative and antifreezing agent are measured according to formula composition
Uniformly, it is carried out just crushing 15min with high speed shear dispersion machine, then the glass grinding pearl progress two of 3~4mm is added in sand milling kettle
Secondary grinding, grinding bead and quality of material ratio 1.1:1, sand milling kettle collet are passed through condensed water and carry out secondary grinding 1.7h, be then added
Xanthan gum and Arabic gum are ground to 1.8h three times, are eventually adding organic silicon defoamer, carry out grinding 8min, and discharging obtains
500g/L spy's tebuthiuron suspending agent finished product after measured suspensibility be higher than 96%, resolution ratio be lower than 0.6%.
Embodiment 4
In 500g/L spy's tebuthiuron suspending agent formula as mass fraction, the tebuthiuron raw medicine including purity >=97%
48%, dispersing agent 9%, preservative 0.5%, thickener 0.4%, antifreezing agent 3%, defoaming agent 1%, remaining as water, wherein dispersing
Anion non-ionic composite emulsifying dispersant 4%, Sulfates anionic emulsifying dispersant 2% and benzenesulfonates in agent
Anionic dispersing agents 3%, thickener CMC, antifreezing agent are that propylene glycol and glycerine mix, and defoaming agent is organic silicon defoamer,
Preservative is Kathon,
It is added in sand milling kettle and mixes after tebuthiuron raw medicine, dispersing agent, preservative and antifreezing agent are measured according to formula composition
Uniformly, it is carried out just crushing 12min with high speed shear dispersion machine, then the glass grinding pearl progress two of 3~4mm is added in sand milling kettle
Secondary grinding, grinding bead and quality of material ratio 1.15:1, sand milling kettle collet are passed through condensed water and carry out secondary grinding 3h, be then added
CMC is ground to 2h three times, is eventually adding organic silicon defoamer, carries out grinding 6min, the 500g/L spy's fourth thiophene to discharge
Suspensibility is higher than 96% to grand suspending agent finished product after measured, and resolution ratio is lower than 0.6%.
Embodiment 5
In 500g/L spy's tebuthiuron suspending agent formula as mass fraction, the tebuthiuron raw medicine including purity >=97%
52%, dispersing agent 10%, preservative 0.6%, thickener 0.2%, antifreezing agent 3%, defoaming agent 0.9%, remaining as water, wherein dividing
Anion non-ionic composite emulsifying dispersant 4%, Sulfates anionic emulsifying dispersant 2% and benzene sulfonate in powder
Anionoid dispersing agent 4%, thickener PVA, antifreezing agent are polyethylene glycol, and defoaming agent is organic silicon defoamer, and preservative is
Kathon,
It is added in sand milling kettle and mixes after tebuthiuron raw medicine, dispersing agent, preservative and antifreezing agent are measured according to formula composition
Uniformly, it is carried out just crushing 10min with high speed shear dispersion machine, then the glass grinding pearl progress two of 3~4mm is added in sand milling kettle
Secondary grinding, grinding bead and quality of material ratio 1.2:1, sand milling kettle collet are passed through condensed water and carry out secondary grinding 1.5h, be then added
PVA is ground to 1.7h three times, is eventually adding organic silicon defoamer, carries out grinding 7min, the 500g/L spy's fourth to discharge
Suspensibility is higher than 96% to the grand suspending agent finished product of thiophene after measured, and resolution ratio is lower than 0.6%.
Anion non-ionic composite emulsifying dispersant can select Yus- in dispersing agent in above-described embodiment 1-5
Yus-Fs7PG can be selected for CH7000, Sulfates anionic emulsifying dispersant and Benzenesulphonate anionic dispersing agent is optional
With Yus-TXC, then by taking preferred embodiment 2 as an example, formula be may be expressed as:
Whether met the requirements to the suspending agent in above-described embodiment 1-5 using XSP-8CA type biology microscope sem observation granularity,
It was found that 95% or more the particle accounting that partial size is 1-5 μm.
In the above-described embodiments in suspending agent obtained, sample is randomly selected, is divided into 4 groups, every group there are 2 samples, carries out
Sample analysis, it is seen that table 1,
Table 1
Carry out the measurement of suspensibility:
1.5-2.0g sample is weighed, is placed in the 200mL beaker for filling 50mL standard hard water (30 ± 1 DEG C), is swung with hand
It circles, it is 120 times about per minute, 2min is carried out, which is placed into 13min in the water-bath of same temperature, then
Its whole is washed in 250mL graduated cylinder with 30 ± 1 DEG C of standard hard waters, and is diluted to scale, covers plug, is with graduated cylinder bottom
Axle center turns upside down graduated cylinder 30 times (be inverted graduated cylinder and restore to original position to be primary, about 2S) in 1min.Plug is opened,
It is vertically put into the water bath with thermostatic control of vibration again, places 30min.With suction pipe by 9/10 (i.e. 225mL) of content in 10-15s
Suspension removes, and not shake or stir the sediment in graduated cylinder, it is ensured that the top of pipe is always under liquid level at several millimeters.It will amount
Cylinder bottom 25mL suspension all moves into 50mL volumetric flask, then accurate addition 10mL inner mark solution, sufficiently shakes up, according to standard
It is required that method be measured the quality of effective component tebuthiuron.
The suspensibility X2 (%) of tebuthiuron is calculated by formula (2) in sample:
In formula: m1 is materialsed the quality of middle tebuthiuron by formulated suspension；M2 is the 25mL suspension for staying in graduated cylinder bottom
The quality of tebuthiuron in liquid.
Carry out heat storage stability test:
It is carried out by GB/T19136, it is interior for 24 hours after heat storage, it tests to defined project, point of effective component tebuthiuron
Solution rate≤0.6%, and other indexs still conform to standard requirements.
High performance liquid chromatography identification is carried out to 8 samples randomly selected, sample is dissolved with methanol, with methanol+acetonitrile+water
For mobile phase, tebuthiuron standard specimen: known quality score, >=98.0%, using with 5 μm of C18 (or ODS) is the stainless of filler
Steel column and there is Variable wavelength UV detector, high performance liquid chromatography separation and measurement are carried out to the tebuthiuron in sample.
Wherein high performance liquid chromatograph: there is Variable wavelength UV detector；
Chromatographic data processor；
Chromatographic column: 250mm × 4.6mm (i.d) stainless steel column, built-in Kromasil C18 (ODS) filler, 5 μm；
Sample injector: 25 μ L.
Mobile phase: methanol+water=75+25 (v+v)；
Flow velocity: 1.5mL/min；
Column temperature: room temperature；
Detection wavelength: 256nm；
Sampling volume: 10 μ L；
Retention time (attached typical liquid chromatographic figure): tebuthiuron: 4.7min.
Under above-mentioned operation condition of chromatogram, after instrumental baseline is stablized, several needle standard specimen solutions is continuously injected into, each needle phase is calculated
To response, the relative response to adjacent two needle changes less than 1.5%, then measures according to following order sample introduction: a. standard specimen
Solution；B. sample solution；C. sample solution；D. standard specimen solution.
Obtained chromatogram refers to Fig. 2.
Embodiment described above is only to absolutely prove preferred embodiment that is of the invention and being lifted, protection model of the invention
It encloses without being limited thereto.Those skilled in the art's made equivalent substitute or transformation on the basis of the present invention, in the present invention
Protection scope within.Protection scope of the present invention is subject to claims.
Claims (10)
1. a kind of 500g/L terbufos benzthiazuron suspending agent, it is characterized in that
In 500g/L spy's tebuthiuron suspending agent formula as mass fraction, the tebuthiuron raw medicine 45-52% including purity >=97%,
Dispersing agent 7-10%, preservative 0.4-0.6%, thickener 0.2-2%, antifreezing agent 2-4%, defoaming agent 0.6-1%, remaining as
Water,
After mixing according to formula composition by tebuthiuron raw medicine, dispersing agent, preservative and antifreezing agent, it carries out just crushing, then plus
Enter grinding bead and water carry out secondary grinding, thickener is then added and is ground three times, is eventually adding defoaming agent, is ground,
Discharging, suspensibility is higher than 96% to obtained 500g/L spy's tebuthiuron suspending agent finished product after measured, and resolution ratio is lower than 0.6%.
2. suspending agent according to claim 1, it is characterized in that pressing mass fraction in 500g/L spy's tebuthiuron suspending agent formula
Meter, tebuthiuron raw medicine 46-48%, dispersing agent 8-9%, preservative 0.4-0.6%, thickener 0.4- including purity >=97%
1%, antifreezing agent 3-4%, defoaming agent 0.7-0.9%, remaining as water.
3. suspending agent according to claim 1 or 2, it is characterized in that thickener be xanthan gum, aluminum magnesium silicate, Arabic gum,
One or more of CMC, PVA and polyacrylic acid mixing.
4. suspending agent according to claim 3, it is characterized in that antifreezing agent is ethylene glycol, propylene glycol, glycerine and poly- second two
The mixing of one or more of alcohol.
5. suspending agent according to claim 1 or 4, it is characterized in that dispersing agent includes the emulsification point of anion non-ionic composite
Powder, Sulfates anion-emulsifying dispersant and Benzenesulphonate anionic dispersing agent.
6. suspending agent according to claim 5, it is characterized in that anion non-ionic composite emulsifying dispersant and sulfate
The ratio between the sum of both anionoid type emulsifying dispersants mass fraction and the mass fraction of Benzenesulphonate anionic dispersing agent are
3/5-1。
7. a kind of preparation method of 500g/L terbufos benzthiazuron suspending agent, it is characterized in that
As mass fraction according to 500g/L spy's tebuthiuron suspending agent formula: the tebuthiuron raw medicine 45- including purity >=97%
52%, dispersing agent 7-10%, preservative 0.4-0.6%, thickener 5-8%, antifreezing agent 2-4%, defoaming agent 0.6-1%, residue
For water,
After mixing by tebuthiuron raw medicine, dispersing agent, preservative and antifreezing agent, it carries out just crushing, adds grinding bead and water
Secondary grinding is carried out, thickener is then added and is ground three times, is eventually adding defoaming agent, is ground, discharges, and right
500g/L spy's tebuthiuron suspending agent finished product carries out quality control, and suspensibility is higher than 96%, and resolution ratio is lower than 0.6%.
8. according to the method described in claim 7, being ground it is characterized in that being added according to grinding bead and quality of material ratio 1-1.2:1
Pearl, and water is added and carries out secondary grinding 1.5-2h.
9. method according to claim 7 or 8, it is characterized in that thickener is added is ground to 1.5-2h three times, finally
Defoaming agent is added, carries out grinding 5-10min, discharges.
10. according to the method described in claim 9, it is characterized in that tebuthiuron raw medicine, dispersing agent, preservative and antifreezing agent are mixed
After uniformly, carry out just crushing 10-20min.
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101703040A (en) * | 2009-08-21 | 2010-05-12 | 江苏剑牌农药化工有限公司 | Diniconazole suspending agent formula and preparation method thereof |
| CN101731205A (en) * | 2010-01-27 | 2010-06-16 | 江苏省农用激素工程技术研究中心有限公司 | Suspending agent of tebuthiuron and method for preparing same |
-
2019
- 2019-01-02 CN CN201910001348.5A patent/CN109430288A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101703040A (en) * | 2009-08-21 | 2010-05-12 | 江苏剑牌农药化工有限公司 | Diniconazole suspending agent formula and preparation method thereof |
| CN101731205A (en) * | 2010-01-27 | 2010-06-16 | 江苏省农用激素工程技术研究中心有限公司 | Suspending agent of tebuthiuron and method for preparing same |
Non-Patent Citations (1)
| Title |
|---|
| 李维宏等: "500 g/L丁噻隆悬浮剂的研制", 《现代农药》 * |
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