Solvent composition for preparing neonicotinoid pesticide liquid preparation

A technology of nicotine pesticide and solvent composition, which is applied in the fields of application, insecticide, biocide, etc., can solve the problems of unstable active ingredients of pesticides, easy crystallization or precipitation, complex preparation production process, etc., and achieve environmental and environmental protection. The effect of user-friendliness, excellent drug efficacy and simple preparation method

Active Publication Date: 2013-08-14
GAUNGXI TIANYUAN BIOCHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But its shortcoming is that the price of natural oil solvent is on the high side, the price is 12,000 to 20,000 yuan/ton, while the applied sec-butyl acetate is 7,000 thousand yuan/ton; the combination of natural oils and geminipyrrolidone is used in pesticide preparations The production cost is higher than the solvent composition of the present application, and it is more difficult to popularize and apply; secondly, it is also limited by the poor solubility of natural oils and oils to nicotine pesticides, and the combination of natural oils and geminipyrrolidones uses nicotine pesticides. Microemulsion preparation, the active ingredients of pesticides are unstable and prone to crystallization or precipitation
[0005] CN1175188 discloses a preparation for transderm...

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Embodiment 1: 5% imidacloprid emulsifiable concentrate (sample 1)

[0042] Add 5 kg of imidacloprid and 5 kg of geminipyrrolidone into the mixing kettle and stir to dissolve, then add 5 kg of emulsifier nonylphenol polyoxyethylene ether, make up to 100 kg with sec-butyl acetate, and stir evenly to prepare 5% imidacloprid EC (sample 1).

[0043] 5% imidacloprid emulsifiable concentrate (comparative sample 1)

[0044]Add 5kg of imidacloprid and 25kg of N,N-dimethylformamide into the mixing kettle and stir and dissolve in the mixing kettle, then add 5kg of emulsifier nonylphenol polyoxyethylene ether, make up to 100kg with xylene, stir evenly, and prepare 5 % imidacloprid emulsifiable concentrate (comparative sample 1).

[0045] Both 5% imidacloprid EC (sample 1) and 5% imidacloprid EC (comparative sample 1) were tested for stability.

[0046] The appearance is carried out by visual inspection, the sample is uniform and transparent, no precipitation, no precipitation an...

Embodiment 2

[0066] Example 2: 5% Acetamiprid EC (Sample 2)

[0067] Add 5 kg of acetamiprid and 9 kg of geminipyrrolidone in the mixing kettle, after stirring and dissolving, add 5 kg of emulsifier phenol polyoxyethylene ether, 2 kg of calcium dodecylbenzenesulfonate, and make up to 100 kg with sec-butyl acetate, stir evenly, Prepare 5% acetamiprid EC (sample 2).

[0068] 5% acetamiprid EC (comparative sample 2)

[0069] Add acetamiprid 5kg, methyl alcohol 30kg in mixing kettle, after stirring and dissolving, then add emulsifier phenol polyoxyethylene ether 5kg, calcium dodecylbenzenesulfonate 2kg, xylene make up to 100kg, stir, prepare 5 % Acetamiprid EC (comparative sample 2).

[0070] Both 5% acetamiprid EC (sample 2) and 5% acetamiprid EC (comparative sample 2) were tested for stability.

[0071] The appearance is carried out by visual inspection, and the sample is uniform and transparent, without precipitation, precipitation and crystallization as qualified.

[0072] Determinat...

Embodiment 3

[0091] Embodiment 3: 20% thiacloprid emulsifiable concentrate (sample 3)

[0092] Add thiacloprid 20kg in mixing kettle, geminipyrrolidone 45kg, after stirring and dissolving, add emulsifier alkylphenol polyoxyethylene ether 3 kg, calcium dodecylbenzenesulfonate 2kg, sec-butyl acetate make up to 100kg, Stir evenly to prepare 20% thiacloprid emulsifiable concentrate (sample 3).

[0093] 20% Thiacloprid EC (comparative sample 3)

[0094] Add 20kg of thiacloprid and 65kg of N,N-dimethylformamide in the mixing kettle, after stirring and dissolving, add 3 kg of emulsifier alkylphenol polyoxyethylene ether, 2kg of calcium dodecylbenzenesulfonate, two Make up to 100kg of toluene, stir evenly, and prepare 20% thiacloprid emulsifiable concentrate (comparative sample 3).

[0095] Both 20% thiacloprid EC (sample 3) and 20% thiacloprid EC (comparative sample 3) were tested for stability.

[0096] The appearance is carried out by visual inspection, the sample is uniform and transparen...

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PUM

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Abstract

The invention discloses a solvent composition for preparing a neonicotinoid pesticide liquid preparation. The solvent composition is formed by dipyrrolidone and sec-butyl acetate, wherein the mass ratio of the dipyrrolidone to the sec-butyl acetate is in a range from 1: 17 to 6: 1; and the mass percentage of the solvent composition in the neonicotinoid pesticide liquid preparation is 10-90%. The solvent composition is directly mixed with a pesticide effective component and a surfactant to prepare the neonicotinoid pesticide liquid preparation. The solvent composition is safe to produce and safe, is environment-friendly and is easily degradable; and the solvent composition is the optimal solvent composition capable of replacing current organic solvents including aromatic hydrocarbons, alcohols, N,N-dimethyl formamide and the like, which are massively used.

Description

technical field [0001] The invention relates to the technical field of pesticide processing, in particular to a solvent composition for preparing liquid preparations of nicotinic pesticides. Background technique [0002] Nicotinic pesticides are the most widely used pesticides in my country, and they are used to kill insects and mites in agriculture. However, in the prior art, nicotine pesticides mostly use a large amount of aromatic hydrocarbons, alcohols, acids and N,N-dimethylformamide as solvents to prepare emulsifiable concentrates and microemulsions. Because these organic solvents are not easy to degrade and have large residues in agricultural products, they seriously affect the safety of agricultural products and people's health, and cause great environmental pollution. They have been banned by the United States and the European Union. [0003] Therefore, finding a solvent composition that has good stability to nicotine pesticides, low toxicity and environmental prot...

Claims

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Application Information

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IPC IPC(8): A01N25/02A01N25/04A01N51/00A01N47/40A01N43/40A01P7/04
Inventor 李建新卢瑞李现玲
Owner GAUNGXI TIANYUAN BIOCHEM
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