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Paraquat soluble colloid and its preparation method

A soluble colloid and paraquat technology, applied in botany equipment and methods, herbicides, algicides, biocides, etc., can solve the problems of increased difficulty in use, poisoning death, and easy oral administration of water formulations, and reduce drying costs , Avoid the pollution of toxic dust, the effect of no dust pollution

Inactive Publication Date: 2011-12-28
中化化工科学技术研究总院有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although an emetic and a warning color are added to the paraquat water solution, the water solution is easy to take orally, and it is easy to cause poisoning death
In addition, it is reported that the impulsive period of oral pesticide suicide is only 5 to 20 seconds. If paraquat is made into a solid preparation or soluble gel that is not easy to take orally, it can increase the difficulty of use and try to make it pass the impulsive period

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1185

[0017] Embodiment 118.5% paraquat soluble colloid

[0018] 30.5% paraquat mother liquor 60.6%, emetic 0.4%, odorant 0.2%, hydroxyethyl cellulose 3.0%, alkylphenol polyoxyethylene ether 10.0%, water 25.8%.

[0019] Preparation: At 60°C, shear and mix 25.8kg of water, 0.4kg of emetic, 0.2kg of odorant, 10.0kg of alkylphenol polyoxyethylene ether, and 3.0kg of hydroxyethyl cellulose, and finally add 60.6kg of Baicao The 18.5% paraquat soluble colloid is formed by shearing and mixing the mother liquor with paraquat evenly.

Embodiment 2225

[0020] Embodiment 222.5% paraquat soluble colloid

[0021] 30.5% paraquat mother liquor 73.8%, emetic 0.4%, odorant 0.1%, fatty alcohol polyoxyethylene ether sodium sulfate 10.0%, alkylphenol polyoxyethylene ether 8.0%, cocamidopropyl betaine 7.7%.

[0022] Preparation: At 40°C, 7.7kg cocamidopropyl betaine, 0.4kg emetic, 0.1kg odorant, 10.0kg fatty alcohol polyoxyethylene ether sodium sulfate, 8.0kg alkylphenol polyoxyethylene ether shear Cut and mix evenly, and finally add 73.8kg of paraquat mother liquor, shear and mix evenly to form 22.5% paraquat soluble gel.

Embodiment 325

[0023] Embodiment 325.0% paraquat soluble colloid

[0024] 30.5% paraquat mother liquor 82.0%, emetic 0.3%, odorant 0.1%, acrylic acid copolymer 1.5%, cetyltrimethylammonium bromide 10.0%, alkylbenzene sulfonate 6.1%.

[0025] Preparation: At 55°C, shear and mix 10.0kg cetyltrimethylammonium bromide, 6.1kg alkylbenzenesulfonate, 0.3kg emetic, 0.1kg odorant, and 1.5kg acrylic acid copolymer , and finally add 82.0kg of paraquat mother liquor and shear and mix evenly to form 25.0% paraquat soluble gel.

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PUM

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Abstract

The invention discloses a pesticide composition containing herbicide paraquat, that is, paraquat soluble colloid and a preparation method thereof. The paraquat soluble gel is composed of the following raw materials in mass percentage: 0.1% to 30.0% of paraquat cation, 0.1% to 1.0% of emetic, 0% to 0.5% of odorant, and 1.0% of thickening synergist % to 90.0%, and the balance is water; the preparation method is to shear and mix water, emetic, odorant and thickening synergist at a temperature of 10°C to 100°C, and then add paraquat mother liquor and shear Cut and mix evenly. The preparation of the invention not only can conveniently add a liquid or paste synergist in the formula, but also avoids the pollution of toxic dust when the paraquat is made into a solid preparation. In addition, because the preparation itself is a jelly-like substance, it overcomes the shortcoming that the paraquat water preparation is easy to take orally, and has good social and economic benefits.

Description

technical field [0001] The invention relates to a pesticide composition containing herbicide paraquat and a preparation method thereof, in particular to a paraquat soluble colloid and a preparation method thereof. Background technique [0002] Paraquat (chemical name is 1,1'-dimethyl-4,4'-bipyridyl cationic salt) is the second largest herbicide after glyphosate, and it is a quick-acting contact herbicide. Paraquat has a strong destructive effect on the green tissue of monocotyledonous and dicotyledonous plants, but it has no conduction effect, and can only damage the plant's roots and hidden seeds in the soil. Once in contact with the soil, it will be inactivated by adsorption passivation. At present, paraquat dosage forms are mainly 20% and 25% water formulations, which are specified in the national standard GB 19308-2003 "Paraquat Liquid Solution". [0003] Animal experiments show that paraquat is moderately toxic, and the oral LD50 of dichloride in rats is 155-203 mg / kg...

Claims

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Application Information

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IPC IPC(8): A01N43/40A01N25/04A01P13/00
Inventor 卢忠利张宗俭刘宁
Owner 中化化工科学技术研究总院有限公司
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