Ultra-low-volume cypermethrin.profenofos liquid and preparation method thereof

An ultra-low-capacity liquid agent, cypermethrin technology, applied in the field of pesticides, can solve the problems of not being resistant to rain erosion, easy to pollute the environment, and affect the efficacy of medicines, and achieve the effects of less toxicity to humans and animals, good solubility, and improved efficacy

Inactive Publication Date: 2017-01-04
山东科源化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Most of the conventional preparations of cypermethrin profenofos are emulsifiable concentrates. The droplet diameter of conventional spraying (200-300μm) mainly uses water as the carrier, which has poor adhesion and is not resistant to rainwater erosion, which affects the efficacy of the medicine. In addition, aromatic hydrocarbons are usually used as solvents , has certain toxicity and is easy to pollute the environment

Method used

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  • Ultra-low-volume cypermethrin.profenofos liquid and preparation method thereof
  • Ultra-low-volume cypermethrin.profenofos liquid and preparation method thereof
  • Ultra-low-volume cypermethrin.profenofos liquid and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Preparation of 43% cypermethrin·profenofos ultra-low volume liquid

[0042]

[0043] Preparation steps:

[0044] (1) Put the above components into the preparation kettle according to the proportioning ratio;

[0045] (2) Open the preparation kettle, the rotating speed is 90rpm, stir for 2h, and carry out preliminary stirring and mixing under normal temperature and pressure;

[0046] (3) Turn on the high-shear pump, carry out shearing and mixing under normal temperature and pressure, the rotating speed is 1500rpm, and mix for 4 hours, so that the system is fully sheared, dispersed, milked and homogeneous, and becomes a stable homogeneous liquid, and finally packed , to obtain 43% cypermethrin · profenofos ultra-low volume liquid.

[0047] The physicochemical properties of the obtained 43% cypermethrin profenofos ultra-low volume liquid are:

[0048] (1) Appearance: single-phase transparent oily liquid;

[0049] (2) Low-temperature stability: no sediment or floatin...

Embodiment 2

[0055] Preparation of 55% cypermethrin·profenofos ultra-low volume liquid

[0056]

[0057] Preparation steps:

[0058] (1) Put the above components into the preparation kettle according to the proportioning ratio;

[0059] (2) Open the preparation kettle, the rotating speed is 130rpm, stir for 3h, and carry out preliminary stirring and mixing under normal temperature and pressure;

[0060] (3) Turn on the high-shear pump, carry out shearing and mixing under normal temperature and pressure, the rotating speed is 2000rpm, and mix for 6 hours to make the system fully shear, disperse, milk homogeneously, become a stable homogeneous liquid, and finally pack , so that the system is fully sheared, dispersed, milked, and homogeneous to become a stable homogeneous liquid, and finally packaged to obtain 55% cypermethrin profenofos ultra-low volume liquid.

[0061] The physicochemical properties of the obtained 55% cypermethrin profenofos ultra-low volume liquid are:

[0062] (1) ...

Embodiment 3

[0069] Preparation of 47% profenofos ultra-low volume liquid

[0070]

[0071] Preparation steps:

[0072] (1) Put the above components into the preparation kettle according to the proportioning ratio;

[0073](2) Open the preparation kettle, the rotating speed is 110rpm, stir for 3h, and carry out preliminary stirring and mixing under normal temperature and pressure;

[0074] (3) Turn on the high-shear pump, carry out shearing and mixing at normal temperature and pressure, the rotating speed is 1750rpm, and mix for 5 hours, so that the system is fully sheared, dispersed, milked and homogeneous, and becomes a stable homogeneous liquid, and finally packed , so that the system is fully sheared, dispersed, milked and homogenized to become a stable homogeneous liquid, and finally packaged to obtain 47% cypermethrin·profenofos ultra-low volume liquid.

[0075] The physicochemical properties of the obtained 47% cypermethrin profenofos ultra-low volume liquid are:

[0076] (1) ...

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Abstract

The invention discloses ultra-low-volume cypermethrin.profenofos liquid and a preparation method thereof. According to the liquid, cypermethrin and profenofos are used as active ingredients, and glycol ether, methyl oleate, epoxidized soybean oil, an emulsifier and other additives are added. The preparation method comprises the steps that the raw materials are preliminarily stirred and mixed according to the proportion, then a high-shear pump is started to perform shear mixing, so that full shearing, dispersion, emulsification and homogenization are conducted on a system to obtain stable homogeneous-phase liquid. The ultra-low-volume liquid is convenient to prepare, low in cost, good and lasting in pesticide effect and high in coordinative synergism, and water resources are saved. Environmental pollution can be reduced, the pesticide utilization rate can be improved, and the pesticide application amount can be decreased. Compared with a conventional ultra-low-volume liquid preparation method, the prepared ultra-low-volume liquid is more stable in performance and longer in lasting period.

Description

technical field [0001] The invention relates to the field of pesticides, in particular to an ultra-low volume liquid formulation of pesticides. Background technique [0002] Most of the conventional preparations of cypermethrin profenofos are emulsifiable concentrates. The droplet diameter of conventional spraying (200-300 μm) mainly uses water as the carrier, which has poor adhesion and is not resistant to rainwater erosion, which affects the efficacy of the medicine. In addition, aromatic hydrocarbons are usually used as solvents , has certain toxicity and is easy to pollute the environment. [0003] Compared with the prior art, the present invention has the following advantages after making cypermethrin and profenofos into an ultra-low volume liquid: [0004] (1) Less spraying volume and high work efficiency: The amount of liquid medicine sprayed per unit area by ultra-low volume spraying is usually 900-4950mL / hm 2 , only one percent of the conventional spray. Generall...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N57/14A01N53/08A01N25/06A01P7/00
CPCA01N57/14A01N25/06A01N53/00
Inventor 刘旭东张明宇提云恒
Owner 山东科源化工有限公司
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