CN101669467B - Processing method for preparing imidacloprid wettable powder from crude imidacloprid - Google Patents
Processing method for preparing imidacloprid wettable powder from crude imidacloprid Download PDFInfo
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- CN101669467B CN101669467B CN 200910272350 CN200910272350A CN101669467B CN 101669467 B CN101669467 B CN 101669467B CN 200910272350 CN200910272350 CN 200910272350 CN 200910272350 A CN200910272350 A CN 200910272350A CN 101669467 B CN101669467 B CN 101669467B
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Abstract
The invention relates to a processing method for preparing imidacloprid wettable powder from crude imidacloprid, which comprises the following steps: (1) firstly, adding filler into a mixer; (2) pouring crude imidacloprid of 50 to 60 DEG C into the mixer, starting up the mixer, and mixing for about 30 to 50 minutes; (3) adding wetting agent, dispersing agent and stuffing bulking agent, and mixingfor 30 to 50 minutes; (4) screening the uniformly mixed materials by a vibrating screen of 40 meshes; and (5) feeding the powder after being screened to a jet mill to be grinded, wherein, the weight percent of the components are as follows: 1-25% of imidacloprid, 5-50% of filler, 1-10% of wetting agent, 1-10% of dispersing agent and 5-50% of stuffing bulking agent. The invention can effectively solve the problem that the crude imidacloprid is difficult to be treated, and has the advantages of simple process and low treatment cost.
Description
Technical field
The present invention relates to a kind of preparation method of imidacloprid wettable powder, belong to the synthetic post processing of agricultural chemicals and Pesticide formulation technical field.A kind of processing method from the thick oil of Imidacloprid imidacloprid wettable powder processed specifically.
Background technology
Imidacloprid can produce a large amount of mother liquors in crystallization, if untimely processing with digest, will badly influence the normal production of the smart former powder of Imidacloprid.The Imidacloprid of mother liquor formation content brownish black thickness about 22% behind abundant dehydration and desolventizing is oil slightly, can slowly separate out solid at normal temperatures.At present, the former medicine of Imidacloprid manufacturer has two kinds to its processing: (1) concentrates in together can slowly separating out solid under the normal temperature, first to wherein sneaking into fine particle calcium carbonate, but makes wet-milling with the smart former powder of Imidacloprid again.(2) in the thick oil that has taken off behind water and the solvent, add absolute methanol, but the solids of separating out is made wet-milling with the smart former powder of Imidacloprid again.Use two kinds of a large amount of oily liquids that processing method all stays, can't recycle, need send to burning.Can produce volume of smoke and sharp aroma during burning.No matter above-mentioned which kind of mode is processed all exists cost higher, processes loaded down with trivial detailsly, and waste is serious, the problems such as inefficiency; Flue dust and the smell of the generation during burning are serious to air pollution, and operating personnel healthy had very large harm.
Summary of the invention
Purpose of the present invention is exactly the defective that exists for prior art, and a kind of processing method from the thick oil of Imidacloprid imidacloprid wettable powder processed is provided, and it is difficult that it can effectively solve the thick oil processing of Imidacloprid, the problem that processing cost is too high.
Technical solution of the present invention is achieved in that processing step is followed successively by: one, first to Agravicmixer or middle adding filler.Two, with 50～60 ℃ thick oily the input wherein of Imidacloprid, start mixer, mixed about 30～50 minutes.Three, stop mixer, to wherein adding wetting agent and dispersant and other filler, start mixer, mixed 30～50 minutes.Four, the powder with mixing sieves through 40 order vibratory sieves.Five, the powder after sieving is sent in the airslide disintegrating mill and is pulverized.Six, after the assay was approved, send packing.
The present invention can effectively solve the problem of the thick oil processing difficulty of Imidacloprid, and it has the advantage that technique is simple, processing cost is low.
Embodiment
Embodiment 1
Add 120 kg 200 order white carbons to Agravicmixer first, then disposable adding is started mixer from 240 kilograms of the thick oil of the firm 60 ℃ of Imidacloprids out of upstream workshop section, mixes 30～50 minutes.The thick oil of Imidacloprid must add while hot, because temperature is the homogeneous phase oily liquids more than 50 ℃ the time, is conducive to filler to absorption and the dispersion of thick oil, can gradually separate out lump shape precipitation when drop in temperature to room temperature, is unfavorable for the processing of back.After Agravicmixer fully mixes, stop to mix, in mixer, add 15 kilograms of detergent LS, 20 kilograms of dispersant sodium lignin sulfonates, kaolin 105 kg.Start mixer, mixed 30～50 minutes.The powder of mixing is sieved through 40 order vibratory sieves.Powder after sieving is sent in the airslide disintegrating mill and is pulverized.After the assay was approved, send into packing.
Embodiment 2
Add 200 order white carbons first in trough type mixing machine, then disposable adding is slightly oily from the firm 50 ℃ of Imidacloprids out of upstream workshop section, starts mixer, mixes 30～50 minutes.The thick oil of Imidacloprid must add while hot, because temperature is the homogeneous phase oily liquids more than 50 ℃ the time, is conducive to filler to absorption and the dispersion of thick oil, can gradually separate out lump shape precipitation when drop in temperature to room temperature, is unfavorable for the processing of back.After trough type mixing machine fully mixes, stop to mix, in mixer, add detergent LS, dispersant sodium lignin sulfonate, kaolin.Start mixer, mixed 30～50 minutes.The powder of mixing is sieved through 40 order vibratory sieves.Powder after sieving is sent in the airslide disintegrating mill and is pulverized.After the assay was approved, send into packing.Wherein the percentage by weight of each component is Imidacloprid 10%, white carbon 50%, detergent LS 5%, sodium lignin sulfonate 5%, kaolin 30%.
Embodiment 3:
Add 300 purpose kaolin first in the double helix cone-type mixer, then disposable adding is slightly oily from the firm 50 ℃ of Imidacloprids out of upstream workshop section, starts mixer, mixes 30～50 minutes.After the double helix cone-type mixer fully mixes, stop to mix, in mixer, add detergent LS, neopelex, dispersant sodium lignin sulfonate, diatomite, bentonite.Start mixer, mixed 30～50 minutes.The powder of mixing is sieved through 40 order vibratory sieves.Powder after sieving is sent in the airslide disintegrating mill and is pulverized.After the assay was approved, send into packing.Wherein the percentage by weight of each component is Imidacloprid 10%, kaolin 40%, detergent LS 5%, neopelex 5%, sodium lignin sulfonate 5%, diatomite 5%, bentonite 30%.
Claims (1)
1. processing method from the thick oil of Imidacloprid imidacloprid wettable powder processed, it may further comprise the steps: add 300 purpose kaolin first in the double helix cone-type mixer, then disposable adding is slightly oily from the firm 50 ℃ of Imidacloprids out of upstream workshop section, starts mixer, mixes 30～50 minutes; After the double helix cone-type mixer fully mixes, stop to mix, in mixer, add detergent LS, neopelex, dispersant sodium lignin sulfonate, diatomite, bentonite; Start mixer, mixed 30～50 minutes, the powder of mixing is sieved through 40 order vibratory sieves, the powder after sieving is sent in the airslide disintegrating mill and is pulverized, and sends into packing; Wherein the percentage by weight of each component is Imidacloprid 10%, kaolin 40%, detergent LS 5%, neopelex 5%, sodium lignin sulfonate 5%, diatomite 5%, bentonite 30%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910272350 CN101669467B (en) | 2009-09-29 | 2009-09-29 | Processing method for preparing imidacloprid wettable powder from crude imidacloprid |
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| CN 200910272350 CN101669467B (en) | 2009-09-29 | 2009-09-29 | Processing method for preparing imidacloprid wettable powder from crude imidacloprid |
Publications (2)
| Publication Number | Publication Date |
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| CN101669467A CN101669467A (en) | 2010-03-17 |
| CN101669467B true CN101669467B (en) | 2013-04-24 |
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| CN 200910272350 Expired - Fee Related CN101669467B (en) | 2009-09-29 | 2009-09-29 | Processing method for preparing imidacloprid wettable powder from crude imidacloprid |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102524288A (en) * | 2011-12-22 | 2012-07-04 | 广东中迅农科股份有限公司 | Pesticidal composition used for controlling rice plant hoppers |
| CN104886046A (en) * | 2015-05-04 | 2015-09-09 | 浙江龙游东方阿纳萨克作物科技有限公司 | Imidacloprid wettable powder |
| CN105454263B (en) * | 2015-12-09 | 2018-06-05 | 海利贵溪化工农药有限公司 | A kind of carbaryl wettable powder |
Citations (3)
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| CN1817136A (en) * | 2005-12-17 | 2006-08-16 | 操宇琳 | Particle preparation from pyrroline and making method thereof |
| CN1943355A (en) * | 2006-10-26 | 2007-04-11 | 沙隆达集团公司 | High content imidacloprid suspending agent and its preparing method |
| CN101326918A (en) * | 2007-12-06 | 2008-12-24 | 北京颖新泰康科技有限公司 | Water-soluble granular formulation containing Imidacloprid, and preparation and use thereof |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1817136A (en) * | 2005-12-17 | 2006-08-16 | 操宇琳 | Particle preparation from pyrroline and making method thereof |
| CN1943355A (en) * | 2006-10-26 | 2007-04-11 | 沙隆达集团公司 | High content imidacloprid suspending agent and its preparing method |
| CN101326918A (en) * | 2007-12-06 | 2008-12-24 | 北京颖新泰康科技有限公司 | Water-soluble granular formulation containing Imidacloprid, and preparation and use thereof |
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| CN101669467A (en) | 2010-03-17 |
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