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Lufenuron aqueous emulsion and preparation method thereof

A technology of lufenuron and water emulsion, applied in the field of pesticides and their preparation, can solve problems such as lax management, phytotoxicity, environmental pollution, etc., and achieve obvious effects of social benefits, promotion of environmental protection, and obvious economic benefits

Inactive Publication Date: 2009-03-11
张少武
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the market demand for low-toxicity, high-efficiency and environment-friendly pesticides is relatively large, but the supply is small.
[0005] For a long time, all liquid pesticide technical materials and solid technical pharmaceuticals with considerable solubility in organic solvents, whether they are insecticides, acaricides, fungicides or herbicides, are mostly in the form of emulsifiable concentrates. Use, pesticide emulsifiable concentrate has always been an important dosage form of pesticide preparations, but because the emulsifiable concentrate contains a large amount of flammable organic solvents, it has strict requirements on production, storage, transportation, and use. Phytotoxicity
Especially in the long-term use process, a large amount of organic solvents volatilize into the atmosphere, causing serious pollution to the environment, all these problems have caused widespread concern

Method used

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  • Lufenuron aqueous emulsion and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Raw material formula: Lufenuron technical 3kg, solvent xylene 2kg, emulsifier polyoxyethylene alkylphenol 1.5kg, thickener polyvinyl alcohol or xanthan gum 1.8kg, antifreeze agent ethylene glycol or propylene glycol 1.6kg, disinfectant Foaming agent silicone 0.2kg, water 89.9kg.

[0037] Preparation method: according to the above formula, pour lufenuron into the organic solvent xylene or toluene, stir continuously until lufenuron is completely dissolved, and use it as the oil phase for later use;

[0038] Add the emulsifier, thickener, antifreeze, and defoamer to the water under stirring according to the above formula, and keep stirring until it completely dissolves into a uniform liquid, and use it as the water phase for later use.

[0039] First add the oil phase to the container of the shearing machine, start stirring, then gradually add the water phase to the oil phase under stirring, control the speed at 1000 rpm, stir for 60 minutes, and it will become a milky whi...

Embodiment 2

[0041] Raw material formula

[0042] Lufenuron technical 10kg, solvent xylene or toluene 5kg, emulsifier polyoxyethylene fatty alcohol 3.6kg thickener polyoxyethylene alcohol or xanthan gum 3.5kg, antifreeze agent ethylene glycol or propylene glycol 2kg, defoamer organic Silicon 0.3kg, water 75.6kg.

[0043] Preparation method: according to the above formula, add lufenuron technical into the organic solvent xylene or toluene, stir continuously until the lufenuron technical is completely dissolved, and use it as the oil phase for later use;

[0044] Add the emulsifier, thickener, antifreeze, and defoamer to the water under stirring according to the above formula, and keep stirring until it completely dissolves into a uniform liquid, and use it as the water phase for later use;

[0045] First add the oil phase to the container of the shearing machine, start stirring, then gradually add the water phase to the oil phase under stirring, control the speed at 12000 rpm, stir for 30 ...

Embodiment 3

[0047] Raw material formula:

[0048] Lufenuron technical 16KG, solvent xylene and toluene mixture 8KG, emulsifier polyoxyethylene alkylaryl phenol and sorbitol ester mixture 8kg, thickener polyvinyl alcohol or xanthan gum 4kg, antifreeze ethylene glycol The mixture of alcohol and propylene glycol is 4kg, the antifoaming agent silicone is 0.8kg, and water is 59.2kg.

[0049] Preparation method: according to the above formula, add lufenuron technical substance into the mixture of organic solvent xylene and toluene, stir continuously until lufenuron is completely dissolved, and use it as the oil phase for later use.

[0050] Then according to the above formula, add the dimehypo technical, emulsifier, thickener, antifreeze, and defoamer into the water sequentially under stirring, and keep stirring until it completely dissolves into a uniform liquid, and use it as the water phase for later use.

[0051] First add the oil phase to the container of the shearing machine, start stirr...

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Abstract

The invention discloses a Lufenuron emulsion in water and a preparation method thereof; the Lufenuron emulsion in water comprises the components according to the weight percentage: 1-50% of Lufenuron technical product of pesticides, 1-10% of solvent, 0.5-5% of antifreeze, 0.1-1% of defoamer, 1-10% of emulsifier, 0.1-5% of thickening agent and rest of water. The Lufenuron emulsion in water has excellent effects on controlling crop pests such as vegetables and asparagus caterpillar, prodenia litura, diamond back moth, cabbage caterpillar, etc. In addition, as the preparation formulation does not adopt organic solvent, not only is the manufacturing cost reduced, but also the toxicity for the users are lowered, the safety for the environment is improved, and the process of transportation and storage is safer.

Description

technical field [0001] The invention relates to a pesticide and a preparation method thereof, in particular to a lufenuron aqueous emulsion for preventing and controlling vegetable pests such as beet armyworm, Spodoptera litura, diamondback moth and cabbage caterpillar and a preparation method thereof. Background technique [0002] In recent years, the global pesticide policy has undergone great changes, especially developed countries have very strict restrictions on the use of highly toxic and high residue pesticides, especially since January 1, 2007, the use of highly toxic pesticides in agriculture has been banned nationwide, and the domestic market has The demand for high-efficiency, low-toxicity and low-residue environmentally-friendly pesticides will increase, while high-toxicity pesticides will be ruthlessly eliminated under the ban. Restricting and further prohibiting the use of highly toxic pesticides is the trend of social development and the need to achieve sustai...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N25/04A01N47/34A01P7/00
Inventor 张少武
Owner 张少武