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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: 2014-07-23
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 transdermally preventing and controlling animal parasites, which has the following composition: an agonist or antagonist of the nicotinergic acetylcholine receptor of insects, and its concentration is 1 to 20 (weight)% of the total weight of the preparation; Solvents of benzyl alcohol or optionally substituted pyrrolidone in a concentration of at least 20% by weight based on the total weight of the preparation, with the disadvantage that the technical problem solved is different, the patent is mainly for the control of animal parasites (such as fleas, lice, flies) , and the production process of the preparation is complex, the production cost is high, and it is not suitable for the production of pesticides for the prevention and treatment of crop diseases, insect pests and weeds

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 5kg of imidacloprid and 5kg of geminipyrrolidone into the mixing kettle and stir to dissolve, then add 5kg of emulsifier nonylphenol polyoxyethylene ether, make up to 100kg with sec-butyl acetate, stir evenly, and 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 and crys...

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 that can be used for nicotine pesticides, which is composed of geminipyrrolidone and sec-butyl acetate, and the mass ratio of the two is 1:17-6:1. The solvent composition is used in nicotine liquid preparations The mass percentage in is 10% to 90%. The solvent composition is directly mixed with the pesticide active ingredient and the surfactant to prepare the nicotinic pesticide liquid preparation. The solvent composition is safe in production and use, is environmentally friendly and easy to degrade, and is an optimal solvent composition for substituting organic solvents such as aromatic hydrocarbons, alcohols, N,N-dimethylformamide, etc., which are widely used at present.

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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Patent Type & Authority Patents(China)
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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