CN111449062A - Production and preparation process of pesticide effervescent agent - Google Patents
Production and preparation process of pesticide effervescent agent Download PDFInfo
- Publication number
- CN111449062A CN111449062A CN202010397638.9A CN202010397638A CN111449062A CN 111449062 A CN111449062 A CN 111449062A CN 202010397638 A CN202010397638 A CN 202010397638A CN 111449062 A CN111449062 A CN 111449062A
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- CN
- China
- Prior art keywords
- effervescent
- drying
- pesticide
- agent
- effervescent agent
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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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
- 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
- A01N25/12—Powders or granules
- A01N25/14—Powders or granules wettable
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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
- 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
- A01N25/34—Shaped forms, e.g. sheets, not provided for in any other sub-group of this main group
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2/00—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B3/00—Drying solid materials or objects by processes involving the application of heat
- F26B3/32—Drying solid materials or objects by processes involving the application of heat by development of heat within the materials or objects to be dried, e.g. by fermentation or other microbiological action
- F26B3/34—Drying solid materials or objects by processes involving the application of heat by development of heat within the materials or objects to be dried, e.g. by fermentation or other microbiological action by using electrical effects
- F26B3/347—Electromagnetic heating, e.g. induction heating or heating using microwave energy
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B5/00—Drying solid materials or objects by processes not involving the application of heat
- F26B5/04—Drying solid materials or objects by processes not involving the application of heat by evaporation or sublimation of moisture under reduced pressure, e.g. in a vacuum
- F26B5/048—Drying solid materials or objects by processes not involving the application of heat by evaporation or sublimation of moisture under reduced pressure, e.g. in a vacuum in combination with heat developed by electro-magnetic means, e.g. microwave energy
Abstract
The invention provides a production and preparation process of a pesticide effervescent agent, which comprises the following steps: weighing the effective components, the auxiliary agent, the acid, the alkali and the filler according to the formula of the pesticide effervescent agent in proportion, putting the effective components, the auxiliary agent, the acid, the alkali and the filler into a gravity-free mixer, and stirring and mixing the materials until the materials are uniform and have no color difference; adding an adhesive and a solvent, mixing in a kneader, and then feeding into a granulator for kneading granulation to obtain an effervescent agent semi-finished product, wherein the kneading granulation comprises wet granulation and dry granulation tabletting; and (3) carrying out microwave heating vacuum drying on the effervescent agent semi-finished product to obtain the pesticide effervescent agent, simultaneously condensing and recovering the solvent through a condensation recovery device, and carrying out microwave heating vacuum drying to obtain dynamic drying in which the material can move at a certain speed in a drying machine. By adopting the technical scheme of the invention, the drying uniformity of the product is improved, the material is not easy to damage in the drying process, the product quality and the production efficiency of the effervescent agent are greatly improved, and the production cost is reduced.
Description
Technical Field
The invention relates to the technical field of pesticide formulation processing, in particular to a production and preparation process of a pesticide effervescent agent.
Background
The effervescent agent is one type in pesticide preparation processing, and comprises effervescent granules and effervescent tablets, wherein the components of the effervescent granules and effervescent tablets comprise pesticide active ingredients, a dispersing agent, a wetting agent, a synergist, an adhesive, an acid source, an alkali source and a filler, the effervescent granules or effervescent tablets are prepared by an extrusion granulation or tablet press, and then the effervescent granules or effervescent tablets are dried and packaged.
In the correlation technique, generally adopt electric heating vacuum oven, put the material in the tray, the equipartition is in the tray, static stoving, area is great, the material is dried in the tray, material thickness and material are not uniform apart from the distance of heating pipe, the thermal efficiency utilization ratio is low, drying time is long, and cause the material to dry and wet inhomogeneous easily, some materials do not dry thoroughly, bag that rises appears easily after the packing, some material active ingredient suffers destruction because drying time is longer, influence product quality, drying effect is relatively poor, and effervescent agent is because there is acid, alkali, if drying effect is not good, remaining moisture in the preparation, will take place acid-base reaction production water and carbon dioxide gas, produce flatulence, influence the product, reduce product shelf life.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art or the related art.
Therefore, the invention aims to provide a production and preparation process of the pesticide effervescent agent.
In order to realize the aim, the technical scheme of the invention provides a production and preparation process of a pesticide effervescent agent, which comprises the following steps:
weighing the effective components, the auxiliary agent, the acid, the alkali and the filler according to the formula of the pesticide effervescent agent in proportion, putting the effective components, the auxiliary agent, the acid, the alkali and the filler into a gravity-free mixer, and stirring and mixing the materials until the materials are uniform and have no color difference;
adding an adhesive and a solvent, mixing in a kneader, and then feeding into a granulator for kneading granulation to obtain a semi-finished effervescent agent product, wherein the kneading granulation comprises wet granulation and dry granulation tabletting;
and carrying out microwave heating vacuum drying on the effervescent agent semi-finished product to obtain a pesticide effervescent agent, and simultaneously condensing and recovering the solvent through a condensation recovery device, wherein the microwave heating vacuum drying is dynamic drying in which the material can move at a certain speed in a drying machine.
Preferably, the temperature of the microwave heating vacuum drying is controlled to be 20-120 ℃.
Preferably, the temperature of the microwave heating vacuum drying is controlled at 50 ℃.
Preferably, the vacuum degree of the microwave heating vacuum drying is controlled between 0Mpa and-0.1 Mpa.
Preferably, the vacuum degree of the microwave heating vacuum drying is controlled to be-0.095 MPa.
Preferably, the condensation temperature of the condensation recovery device during condensation recovery of the solvent is controlled between 0 ℃ and-20 ℃.
Preferably, the condensation temperature of the condensation recovery device when the solvent is condensed and recovered is controlled to be-10 ℃.
The production and preparation process of the pesticide effervescent agent provided by the invention has the following beneficial technical effects:
(1) the effervescent tablet is dried by microwave heating and vacuum, so that the drying uniformity of the product is improved, the material is not easy to damage in the drying process, the product quality and the production efficiency of the effervescent tablet are greatly improved, the production cost is reduced, and the effervescent tablet is suitable for an effervescent tablet formulation consisting of pesticide active ingredients, a dispersing agent, a wetting agent, a synergist, an adhesive, an acid source, an alkali source and a filler.
(2) The method has the advantages of condensing and recovering evaporant, recycling the solvent by more than 90%, recycling, saving energy and cost, and reducing pollution to the environment to a certain extent.
(3) Is suitable for both continuous production and intermittent production.
(4) The low-temperature vacuum microwave drying is adopted, so that the drying time is reduced, the working efficiency is improved, and the electricity consumption is saved under the condition of the same drying volume.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Detailed Description
The invention discloses a production and preparation process of a pesticide effervescent agent, and a person skilled in the art can use the contents to reference the contents and appropriately improve process parameters to realize the production and preparation process. It is expressly intended that all such similar substitutes and modifications which would be obvious to one skilled in the art are deemed to be included in the invention. While the methods and applications of this invention have been described in terms of preferred embodiments, it will be apparent to those of ordinary skill in the art that variations and modifications in the methods and applications described herein, as well as other suitable variations and combinations, may be made to implement and use the techniques of this invention without departing from the spirit and scope of the invention.
The invention is further illustrated by the following examples:
example 1
16% acetochlor bensulfuron effervescent granule
Acetochlor, bensulfuron-methyl, a dispersing agent, a wetting agent, a synergist, an adhesive, an acid source, an alkali source and a filler are added into absolute ethyl alcohol according to a proportion, the materials are kneaded and granulated according to a process flow, wet granules are respectively dried by a drying method in the prior art and are dried under vacuum by microwave heating, and the comparative test results are shown in the following table 1:
TABLE 1
Therefore, compared with the drying method in the prior art, the production and preparation process of the pesticide effervescent agent provided by the invention adopts microwave heating vacuum drying, and can achieve a better drying effect by adopting shorter drying time at a lower drying temperature and a high vacuum degree, the moisture of the effervescent agent after drying can be as low as 0.3%, the effervescent agent can be rapidly decomposed within 5min when in use, and the effervescent agent has no flatulence during hot storage, so that the drying effect is good, and the drying efficiency is high. The energy is saved on the whole, the time is saved, the working efficiency is improved, and the product quality is improved.
Example 2
17% pretilachlor-pyrazosulfuron-ethyl effervescent tablet
Pretilachlor, pyrazosulfuron-ethyl, a dispersing agent, a wetting agent, a synergist, an adhesive, an acid source, an alkali source and a filler are mixed according to a proportion, granulation and tabletting are carried out according to the process flow, the tablets are dried by a drying method in the prior art and are dried under vacuum by microwave heating provided by the invention, and the comparative test results are shown in the following table 2:
TABLE 2
Therefore, compared with the drying method in the prior art, the production and preparation process of the pesticide effervescent agent provided by the invention adopts microwave heating vacuum drying, and can achieve a better drying effect by adopting shorter drying time at lower drying temperature and high vacuum degree, the water content of the effervescent agent after drying can be as low as 0.2%, the effervescent agent can be rapidly decomposed within 6min during use, and the effervescent agent is free from flatulence during hot storage, so that the drying effect is good, the drying efficiency is high, the energy source is saved on the whole, the time is saved, the working efficiency is improved, and the product quality is improved.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (7)
1. A production and preparation process of a pesticide effervescent agent is characterized by comprising the following steps:
weighing the effective components, the auxiliary agent, the acid, the alkali and the filler according to the formula of the pesticide effervescent agent in proportion, putting the effective components, the auxiliary agent, the acid, the alkali and the filler into a gravity-free mixer, and stirring and mixing the materials until the materials are uniform and have no color difference;
adding an adhesive and a solvent, mixing in a kneader, and then feeding into a granulator for kneading granulation to obtain a semi-finished effervescent agent product, wherein the kneading granulation comprises wet granulation and dry granulation tabletting;
and carrying out microwave heating vacuum drying on the effervescent agent semi-finished product to obtain a pesticide effervescent agent, and simultaneously condensing and recovering the solvent through a condensation recovery device, wherein the microwave heating vacuum drying is dynamic drying in which the material can move at a certain speed in a drying machine.
2. A process for preparing the effervescent pesticide formulation of claim 1,
the temperature of the microwave heating vacuum drying is controlled to be 20-120 ℃.
3. A process for preparing the effervescent pesticide formulation of claim 2,
the temperature of the microwave heating vacuum drying is controlled at 50 ℃.
4. A process for preparing the effervescent pesticide formulation of claim 3,
the vacuum degree of the microwave heating vacuum drying is controlled between 0Mpa and-0.1 Mpa.
5. A process for preparing the effervescent pesticide formulation of claim 4,
the vacuum degree of the microwave heating vacuum drying is controlled to be-0.095 Mpa.
6. A process for preparing the effervescent pesticide formulation of claim 5,
the condensation temperature of the condensation recovery device is controlled between 0 ℃ and-20 ℃ when the solvent is condensed and recovered.
7. A process for preparing the effervescent pesticide formulation of claim 6,
the condensation temperature of the condensation recovery device is controlled at-10 ℃ when the solvent is condensed and recovered.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010397638.9A CN111449062B (en) | 2020-05-12 | 2020-05-12 | Production and preparation process of pesticide effervescent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010397638.9A CN111449062B (en) | 2020-05-12 | 2020-05-12 | Production and preparation process of pesticide effervescent |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111449062A true CN111449062A (en) | 2020-07-28 |
| CN111449062B CN111449062B (en) | 2022-08-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN202010397638.9A Active CN111449062B (en) | 2020-05-12 | 2020-05-12 | Production and preparation process of pesticide effervescent |
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| CN (1) | CN111449062B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3651207A (en) * | 1970-12-14 | 1972-03-21 | Lafant Research Co | Preparation for use in mouthwash having effervescence |
| CN1819819A (en) * | 2003-05-07 | 2006-08-16 | 阿克纳公司 | Highly plastic granules for making fast melting tablets |
| CN101653149A (en) * | 2009-09-02 | 2010-02-24 | 深圳市沃科生物工程有限公司 | Oligosaccharides plant induced-resistance agent effervescent tablet and preparation method thereof |
| CN101810173A (en) * | 2009-06-23 | 2010-08-25 | 深圳市朗钛生物科技有限公司 | Agricultural effervescing agent and preparation method thereof |
| CN105165826A (en) * | 2015-08-13 | 2015-12-23 | 广东中迅农科股份有限公司 | Pesticide effervescent granules and preparation method thereof |
| CN106490029A (en) * | 2016-10-31 | 2017-03-15 | 郑州思辩科技有限公司 | A kind of effervescent tablet of preventing and treating rice grub and preparation method thereof |
| CN108014324A (en) * | 2017-10-24 | 2018-05-11 | 中国科学院兰州化学物理研究所 | A kind of health care preparation for having effects that to protect alcoholic liver injury |
| CN111034733A (en) * | 2019-12-24 | 2020-04-21 | 天津市农药研究所 | Preparation method of plant growth regulator allyl isothiazole effervescent tablet |
-
2020
- 2020-05-12 CN CN202010397638.9A patent/CN111449062B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3651207A (en) * | 1970-12-14 | 1972-03-21 | Lafant Research Co | Preparation for use in mouthwash having effervescence |
| CN1819819A (en) * | 2003-05-07 | 2006-08-16 | 阿克纳公司 | Highly plastic granules for making fast melting tablets |
| CN101810173A (en) * | 2009-06-23 | 2010-08-25 | 深圳市朗钛生物科技有限公司 | Agricultural effervescing agent and preparation method thereof |
| CN101653149A (en) * | 2009-09-02 | 2010-02-24 | 深圳市沃科生物工程有限公司 | Oligosaccharides plant induced-resistance agent effervescent tablet and preparation method thereof |
| CN105165826A (en) * | 2015-08-13 | 2015-12-23 | 广东中迅农科股份有限公司 | Pesticide effervescent granules and preparation method thereof |
| CN106490029A (en) * | 2016-10-31 | 2017-03-15 | 郑州思辩科技有限公司 | A kind of effervescent tablet of preventing and treating rice grub and preparation method thereof |
| CN108014324A (en) * | 2017-10-24 | 2018-05-11 | 中国科学院兰州化学物理研究所 | A kind of health care preparation for having effects that to protect alcoholic liver injury |
| CN111034733A (en) * | 2019-12-24 | 2020-04-21 | 天津市农药研究所 | Preparation method of plant growth regulator allyl isothiazole effervescent tablet |
Non-Patent Citations (1)
| Title |
|---|
| 何志军 等著: "《微波冶金新技术》", 30 September 2017, 冶金工业出版社 * |
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| CN111449062B (en) | 2022-08-19 |
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