Pyrethroid pesticide aqueous emulsion and method for preparing the same

A pyrethroid and pyrethroid technology, which is applied in the field of pyrethroid pesticide aqueous emulsion and preparation, can solve the problems of secondary environmental pollution, potential safety hazards, easy occurrence of poisoning, etc., and achieves low residue and is not easy to delaminate , the effect of stable quality

Inactive Publication Date: 2009-05-27
西安鼎盛生物化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The use of a large number of chemical organic solvents makes it easy for the chemical organic solvents to be absorbed by the human body during production, storage, transportation, and use, which is prone to poisoning, deflagration, or phytotoxicity to crops, and there are potential safety hazards
Especially in the long-term use process, about 70% of the commonly used pesticides are lost to the field soil or a large amount of organic solvents are volatilized into the atmosphere, causing serious secondary pollution to the environment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Embodiment 1: (a) get lambda-cyhalothrin 50kg, rapeseed oil 180kg, nonylphenol polyoxyethylene ether phosphate 100kg, add in the reactor and fully stir, until pyrethroid dissolves completely; (b) Take 10 kg of magnesium aluminum silicate, 10 kg of propylene glycol, 10 kg of hydroxymethyl cellulose, and 0.5 kg of sorbic acid and add them to 640 kg of deionized water and stir evenly, and then add the aqueous solution to the oil phase reactor in step (a); (c) open the pipeline A high-shear emulsifier is used to perform high-speed shearing for 50 minutes until the oil phase and the water phase are fully mixed into a uniform milky white milky liquid, and a ton of uniform and stable 5% water emulsion is made.

Embodiment 2

[0020] Embodiment 2: (a) get 80kg of the active drug of lambda-cyhalothrin, 200kg of soybean oil, and 120kg of nonylphenol polyoxyethylene ether phosphate, add in the reactor and fully stir until the pyrethroid is completely dissolved; (b) Take 20kg of magnesium aluminum silicate, 10kg of propylene glycol, 5kg of polyvinyl alcohol, and 1kg of sorbic acid and add them to 564kg of deionized water and stir evenly, and then add the aqueous solution into the oil phase reaction kettle of step (a); (c) open the pipeline type high shear The cutting and emulsifying machine performs high-speed shearing for 60 minutes until the oil phase and the water phase are fully mixed into a uniform milky white milky liquid, and a uniform and stable water emulsion is made.

Embodiment 3

[0021] Embodiment 3: (a) get beta-cyhalothrin former medicine 40kg, peanut oil 240kg, nonylphenol polyoxyethylene ether phosphate 100kg, add in the reactor and fully stir, until pyrethroid dissolves completely; (b) Get 8 kg of magnesium aluminum silicate, 8 kg of propylene glycol, 8 kg of xanthan gum, and 1 kg of sodium benzoate and add them to 595 kg of deionized water and stir evenly, and then add the aqueous solution to step (a) oil phase reactor; (c) open the pipeline type high shear The cutting and emulsifying machine performs high-speed shearing for 40 minutes until the oil phase and the water phase are fully mixed into a uniform milky white milky liquid, and a uniform and stable water emulsion is made.

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PUM

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Abstract

The invention discloses a synthetic pyrethroid type pesticide aqueous emulsion. Synthetic pyrethroid, vegetable oil, phosphate polyoxyethylene nonyl phenol, stabilizer, antifreezer, thickener, preservative agent and water are mixed, the shearing at high speed is carried out by using a high-shearing emulsion machine, and then the oil phase and the water phase are fully mixed into even milky milk-shaped even and stable aqueous emulsion. The pesticide aqueous emulsion utilizes the vegetable oil as the solvent of the technical grade of the synthetic pyrethroid, therefore, compared with the chemical organic solvent, the pesticide aqueous emulsion is more natural, is easier to be decomposed and more environmental-friendly, has low burning point, is non-toxic and safer, and is particularly suitable for the green nuisance-free vegetable production.

Description

technical field [0001] The invention belongs to the technical field of pesticide production, and in particular relates to a pyrethroid pesticide emulsion in water and a preparation method thereof. Background technique [0002] At present, many factories produce insecticidal pesticides with pyrethroid pesticides as the main raw materials, which are synthetic pesticides imitating the chemical structure of natural pyrethrum. It is a broad-spectrum insecticide with low toxicity to humans. It is a nerve agent with rapid action and has good control effects on various pests on wheat, cotton, vegetables, fruits, soybeans and other crops. Such pesticide preparations include emulsifiable concentrates, water emulsions, wettable powders, etc. Green water-based formulations of pesticides, such as microemulsions and water-emulsions, are currently the focus of formulation research at home and abroad and an inevitable trend in the development of pesticide formulations. However, at present,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N25/04A01N53/00A01P7/00
Inventor 陈琳
Owner 西安鼎盛生物化工有限公司
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