Sodium fusidate crystallization method
The invention provides a sodium fusidate crystallization method which comprises the following steps: a, preparing a sodium fusidate solution by taking a acetone water solution as solvent; b, heating the sodium fusidate solution, feeding acetone while stirring, reducing the feeding rate when the sodi...
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| Format: | Patent |
| Sprache: | chi ; eng |
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| Zusammenfassung: | The invention provides a sodium fusidate crystallization method which comprises the following steps: a, preparing a sodium fusidate solution by taking a acetone water solution as solvent; b, heating the sodium fusidate solution, feeding acetone while stirring, reducing the feeding rate when the sodium fusidate solution is turbid, and standing for crystallization after the feeding operation is finished; and performing solid-liquid separation, leaching the obtained solids with acetone, and then drying to obtain sodium fusidate crystals. According to the invention, the method is simple to operate and low in cost; and the sodium fusidate crystals prepared by the method are stable in crystal form and favorable in flowability. |
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