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A kind of Hichongwei dry suspension and preparation method thereof

A technology of dry suspending agent and oxacarb, applied in the field of pesticides, can solve the problems of affecting the spray drying process and the high viscosity of the slurry, and achieve the effects of low storage and transportation cost, good dispersibility and good storage stability.

Active Publication Date: 2021-07-23
QINGDAO RAINBOW CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, when preparing a high content of dicarbacarb dry suspension concentrate, the viscosity of the obtained slurry is too high during the wet pulverization process of dicarbacarb and additives, which affects the subsequent spray drying process

Method used

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  • A kind of Hichongwei dry suspension and preparation method thereof
  • A kind of Hichongwei dry suspension and preparation method thereof
  • A kind of Hichongwei dry suspension and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 180

[0032] Embodiment 1 80% Diechongwei Dry Suspension Concentrate

[0033] The formula is: bentoxacarb 80%, dispersant hyperbranched polyamide ester 3.2%, alkylphenol polyoxyethylene ether succinate sulfonate 1.6%, sodium lignosulfonate 3.2%, wetting agent dodecane Sodium sulfate 1%, sodium alkylnaphthalene sulfonate 3%, disintegrant diammonium hydrogen phosphate 2%, urea 1%, defoamer organosiloxane 0.5%, filler kaolin to make up 100%.

[0034] The preparation method is as follows:

[0035] 1. Mix bentacarb, dispersant, wetting agent, disintegrant, defoamer, filler and water to obtain a slurry. The amount of water is 45-50% of the total mass of each component.

[0036] 2. Grind the uniformly mixed slurry with a sand mill until the particle size D90 is 3-5μm, then pump the suspoemulsion slurry into a pressure spray dryer for drying and granulation. The spray pressure is controlled at 3.6MPa, and the drying gas enters The air temperature is 130°C, and the outlet air temperature i...

Embodiment 2

[0037] Example 2 70% Dichrocarb Dry Suspension Concentrate

[0038]The formula is: bentoxacarb 70%, dispersant hyperbranched polyamide ester 3.2%, alkylphenol polyoxyethylene ether succinate sulfonate 1.6%, sodium lignosulfonate 3.2%, wetting agent dodecane Sodium sulfate 1%, sodium alkylnaphthalene sulfonate 3%, disintegrant diammonium hydrogen phosphate 2%, urea 1%, defoamer organosiloxane 0.5%, filler kaolin to make up 100%.

[0039] The preparation method is the same as in Example 1.

Embodiment 3

[0040] Example 3 75% Dichrocarb dry suspension

[0041] The formula is: bentoxacarb 75%, dispersant hyperbranched polyamide ester 2%, alkylphenol polyoxyethylene ether succinate sulfonate 3%, sodium lignosulfonate 2%, wetting agent dodecane Sodium sulfate 1%, sodium alkylnaphthalene sulfonate 2%, disintegrant diammonium hydrogen phosphate 4%, urea 1%, defoamer organosiloxane 0.1%, filler kaolin to make up 100%.

[0042] The preparation method is the same as in Example 1.

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PUM

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Abstract

The invention discloses a dicarbacarb dry suspension and a preparation method thereof. The dry suspension includes an active ingredient and an auxiliary agent, the active ingredient is dicarbacarb, and the auxiliary agent includes a dispersant, a wetting agent, a disintegrating agent, a disintegrant Foaming agent, filler. The active ingredient content of the dry suspension concentrate of the present invention can reach up to 80%, and the content is relatively high. It has high activity against cockroaches, mosquitoes and flies, and has quick and long-lasting effects in killing insects, and is easy to use.

Description

technical field [0001] The invention relates to a dry suspending agent of Dichrocarb, and also relates to a preparation method of the dry suspending agent, which belongs to the technical field of pesticides. Background technique [0002] Bendiocard (Bendiocard), also known as Bendiocarb, its chemical name is 2,2-dimethyl-1,3-benzodioxo-4-ylmethyl carbamate, and its pure product appearance is Color crystals, odorless. Dichrocarb is stable to light and heat, has gastric poisoning and contact killing effects, has the characteristics of fast knockdown speed and long-lasting effect, and can be used to prevent and control public health, industrial and warehouse pests, such as mosquitoes, flies, cockroaches, ants, etc. ; It can also be used to control Thysanoptera and other pests in vegetables, melons, citrus, potatoes, rice, corn and sorghum, and can also be used as seed treatment agents and granules to control soil pests. The main dosage forms of dicarbacarb are wettable powder...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N25/14A01N47/22A01P7/04
CPCA01N25/14A01N47/22
Inventor 孙国庆袁良国侯永生路雪林
Owner QINGDAO RAINBOW CHEM CO LTD
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