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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Main Authors | , , |
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Format | Patent |
Language | English |
Published |
30.09.1998
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Edition | 6 |
Subjects | |
Online Access | Get full text |
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Abstract | 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. |
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AbstractList | 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. |
Author | SHIWEI CU XIAOHUA YUAN ZHENGRONG LI |
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Title | Process for preparing raw powder of Fenpropathrin with content larger than 90 |
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