Process for preparing raw powder of Fenpropathrin with content larger than 90

Chrysanthemic acid and phenyl ether aldelhyde as main material reacts to produce 30% fenpropathrin solution in dimethylbenzene, which is processed through desolvation, dissolving, crystallization, filtration, showering, drying, crushing, and other steps to prepare fenpropathrin crystal powder with c...

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Bibliographic Details
Main Authors XIAOHUA YUAN, SHIWEI CU, ZHENGRONG LI
Format Patent
LanguageEnglish
Published 30.09.1998
Edition6
Subjects
ACYCLIC OR CARBOCYCLIC COMPOUNDS
CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
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Summary:Chrysanthemic acid and phenyl ether aldelhyde as main material reacts to produce 30% fenpropathrin solution in dimethylbenzene, which is processed through desolvation, dissolving, crystallization, filtration, showering, drying, crushing, and other steps to prepare fenpropathrin crystal powder with content larger than 90%. The said process has high powder yield, less loss of fenpropathrin, reuse of solvent and easy operation, and it is easy to match the fenpropathrin synthesizing equipment and to industrialize.
Bibliography:Application Number: CN1997103662