Methods The solvent extraction and crystallization methods were used.
方法采用萃取-结晶法。
By solvent extraction, column chromatography, and crystallization, fexofenadine (96.3% purity) was obtained with yield 63.5%.
通过对发酵液进行溶媒抽提、柱层析、重结晶，得到纯品，收率达到63.5%，纯度96.3%。
The extraction-crystallization method was used to recover cobalt and manganese acetates from the waste catalyst in the PTA production process .
以对苯二甲酸生产装置中排放的废催化剂为原料，采用萃取—结晶法回收其中的醋酸钴和醋酸锰。
The extraction-crystallization method was used to recover cobalt and manganese acetates from the waste catalyst in the PTA production process .
以对苯二甲酸生产装置中排放的废催化剂为原料，采用萃取—结晶法回收其中的醋酸钴和醋酸锰。
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