Buprofezin wettable powder and preparation technique thereof

• Main Authors: TANG XIAOJUAN, SHEN XIAODE, DAN HONGCHENG, NI JIANFENG
• Format: Patent
• Language: Chinese; English
• Published: 02.08.2019
• Subjects: AGRICULTURE; ANIMAL HUSBANDRY; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES, AS HERBICIDES; CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; FISHING; FORESTRY; HETEROCYCLIC COMPOUNDS; HUMAN NECESSITIES; HUNTING; METALLURGY; ORGANIC CHEMISTRY; PERFORMING OPERATIONS; PEST REPELLANTS OR ATTRACTANTS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; PLANT GROWTH REGULATORS; PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTSTHEREOF; THEIR RELEVANT APPARATUS; TRANSPORTING; TRAPPING

The invention discloses buprofezin wettable powder. The powder is prepared from the following raw materials in parts by weight: 20-25 parts of a buprofezin raw material, 15-20 parts of a mixture of alkylnaphthalene sulfonate and an anionic wetting agent, 15-20 parts of a lignosulfonate dispersant and 20-55 parts of a kaolin filler; the preparation technique comprises the following steps: putting the raw materials except for the buprofezin raw material in a mixing kettle and pre-mixing for 10 to 15 minutes, pulverizing the mixture until the particle size is 10 to 150 mm, then putting the mixture and the buprofezin raw material in a free pulverizer again for pulverization and mixing for 10-15 minutes, wherein the particle size of the mixture is 45-600 [mu]m, and finally, pulverizing and mixing in a jet mill for 20-25 minutes to ensure that the obtained powder has a particle size being smaller than 10 [mu]m to obtain the buprofezin wettable powder; the mixing ratio of the materials is completed accurately by the