Pyridaben water-dispersible granule and preparation method thereof

A technology of dispersible granules and pyridaben, applied in the field of pesticides, can solve problems such as harm to human health, high use cost, environmental pollution, etc., and achieve the effects of less environmental pollution, saving packaging, and reducing environmental pollution

Active Publication Date: 2016-04-06
中高(天津)知识产权管理有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the disadvantages of environmental pollution, harm to human health and high use cost in the prior art, and develop a high-content, environmentally friendly, high utilization rate and easy-to-use pyridaben water-dispersible granules

Method used

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  • Pyridaben water-dispersible granule and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Example 1: 80% pyridaben water-dispersible granules.

[0034] Weigh 80% of pyridaben powder, wetting agent sodium lauryl sulfate 4%, dispersant naphthalene sulfonate formaldehyde condensate 2%, lignosulfonate calcium salt 3%, disintegrant sodium sulfate 5% , defoamer isooctyl alcohol 0.5%, binder sucrose 0.5%, carrier kaolin to 100%; mix pyridaben and other additives except binder in a gravity-free mixer for 20 minutes according to the formula ratio , and then put the mixture into the twin-screw mixer (I), and pulverize it through the airflow mill while mixing to reach a particle size of more than 1000 mesh, collect it through the cyclone separator and bag filter, and finally put it in the double-helix mixer (II) Mix again for 30 minutes to obtain a uniform mother powder. Then accurately weigh the quantitative mother powder in the cyclone fluidized bed granulator, spray the binder aqueous solution according to the formula, and finally dry to obtain irregular granular w...

Embodiment 2

[0035] Example 2: 50% pyridaben water-dispersible granules.

[0036] Weigh 50% of pyridaben powder, wetting agent sodium lauryl sulfate 4%, dispersant polycarboxylate 3%, sodium lignosulfonate 4%, disintegrant urea 25%, binder sucrose 0.5%, antifoaming agent organic silicone 0.3%, carrier diatomaceous earth to 100%, mix pyridaben and other additives except binder in a gravity-free mixer for 20 minutes according to the formula ratio, and then mix The mixture is put into the twin-screw mixer (Ⅰ), crushed by the airflow mill while mixing to reach a particle size of more than 1000 mesh, collected by the cyclone separator and bag filter, and finally mixed again in the double-screw mixer (II) 30 minutes to get a uniform mother powder. Then accurately weigh the quantitative mother powder in the cyclone fluidized bed granulator, spray the binder aqueous solution according to the formula, and finally dry to obtain irregular granular water-dispersible granules, and then sieve to obtain...

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Abstract

The invention discloses a pyridaben water dispersible granule and a preparation method thereof. The pyridaben water dispersible granulethe comprises components of, by weight, 10-80% of pyridaben, 1-8% of wetting agent, 1-10% of dispersing agent, 1-40% of disintegrating agent, 0.3-5% of defoaming agent, 0.5-4% of binder and the balance of carrier. The invention also discloses the preparation method of the water dispersible granule. The invention overcomes shortcomings of suspension and wettable powder, has both advantages of environmental protection and low cost, reduces environmental pollution during processing and usage, and also reduces usage cost for farmers. Therefore, the pyridaben water dispersible granule is a main trend in the development of pesticide formulations.

Description

technical field [0001] The invention belongs to the field of pesticides, and in particular relates to a pyridaben water-dispersible granule and a preparation method thereof. Background technique [0002] Pyridaben, also known as pyridaben and pyridaben, is a high-efficiency, broad-spectrum acaricide with no systemic properties. The control effect is effective, and it is effective for eggs, nymphs, and adults, and it is also effective for the migration period of adults. It is suitable for citrus, apple, pear, mountain ballast, cotton, tobacco, vegetables (except eggplant) and ornamental plants. Pyridaben is stable at 50°C for 90 days, stable in organic solvents, and unstable to light. [0003] Traditional types of pesticides such as EC, microemulsion, powder and wettable powder account for more than 90% of the total preparations in my country. With the development of processed dosage forms, the disadvantages of traditional dosage forms become more prominent: EC contains a l...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N43/58A01N25/14A01P7/02
Inventor 王龙江孟宪秋阎工程彭述明
Owner 中高(天津)知识产权管理有限公司
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