Pyribenzoxim oil suspending agent and preparation method thereof

Abstract

The invention relates to a pyribenzoxim oil suspending agent and a preparation method thereof. The pyribenzoxim oil suspending agent comprises the following components in percentage by weight: 1-30% of pyribenzoxim, 5-15% of penetrant, 5-20% of wetting dispersant, 1-5% of thickener and the balance of dispersion medium. The preparation method comprises the following steps of: preparing the raw materials according to the weight percentage; adding the raw materials into a blending kettle and stirring until the materials are sufficiently and uniformly mixed; adding the mixture into a rapid-flow type mixer, and performing shear dispersion until solid particles are invisible; transferring the material into a sand mill, and performing three-level sanding until the average particle size of the material is 2-3 microns; and transferring the material into a high-shear mixing kettle, adding the penetrant, and performing shear mixing for 30-40 minutes to obtain the pyribenzoxim oil suspending agent. Compared with the missible oil, the aromatic hydrocarbon solvent is replaced by vegetable oil or methyl-esterified vegetable oil, thus little environmental pollution is caused; and moreover, a perfect synergistic effect is realized, the weed prevention effect can be greatly improved, and the dosage and prevention cost are reduced.

Description

technical field [0001] The invention belongs to the technical field of agricultural herbicides, in particular to a saflufenacil oil suspension and a preparation method thereof. Background technique [0002] Pyrimidine saflufenacil, the chemical name is: O-[2,6-bis[(4,6-dimethoxy-2-pyrimidinyl)oxy]benzoyl]benzophenone oxime, a new generation of pyrimidine salicyl Acidic broad-spectrum selective post-emergence herbicide. Saflufenacil is an acetolactate synthase (ALS) inhibitor. Saflufenacil can be used in rice and wheat fields to control many grasses, broad-leaved and sedge weeds, grass weeds such as alopecia, crabgrass, barnyardgrass, green foxtail, bluegrass, stephab, bermudagrass Etc.; broad-leaved weeds such as cattail, purslane, amaranth, velvetleaf, field bindweed, black nightshade, quinoa, wolfgrass, etc.; Grass, water sedge, etc.; especially for the vicious weeds Paspalum bistica and Lishihe in rice fields have a good control effect. The application of saflufenacil...

AI Technical Summary

Problems solved by technology

[0003] The existing formulations of saflufenacil are all low-content ECs, such as 1% and 5% saflufenacil EC, which require the use of a large amount of aromatic hydrocarbon organic solvents, polluting the environment and wasting resources

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