Purification method for Xinjunan

• Main Authors: DONG JINJU, WANG YONGXING, ZHOU YULIANG, XU LIANG, ZHU LIJUN, PENG LI, ZHAO JIHU, LAI QINGLI
• Format: Patent
• Language: Chinese; English
• Published: 16.11.2018
• Subjects: ACYCLIC OR CARBOCYCLIC COMPOUNDS; AGRICULTURE; ANIMAL HUSBANDRY; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES, AS HERBICIDES; CHEMISTRY; FISHING; FORESTRY; HUMAN NECESSITIES; HUNTING; METALLURGY; ORGANIC CHEMISTRY; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS; PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTSTHEREOF; TRAPPING

The invention discloses a purification method for Xinjunan, and belongs to the field of pesticides. The technical scheme comprises the following steps: firstly, adding a Xinjunan mother liquid into aglacial acetic acid solution, uniformly carrying out stirring to obtain a mixed solution for standby use, then refrigerating the mixed solution for forming an ice-water mixture, taking out the ice-water mixture, carrying out suction filtration, removing the filtrate and keeping the frozen material, then thawing the frozen material, carrying out extraction by using chloroform or a mixture of acetone and chloroform, then taking the supernatant liquid after the extraction, adding xylene, carrying out extraction, discarding the xylene extract liquor, adding an ammonia water solution into the lower-layer solution, uniformly carrying out mixing, and carrying out suction filtration to obtain a Xinjunan solid. The advantages of the method provided by the invention are as the follows that conventional reagents are used in