Several of costly solvents and chemicals such as DMF,dichloromethane,methyl acetoacetate,pivalic acid etc. left in waste liquid during the cephradine manufacturing process.
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释义
头孢拉定生产中的废液组分为DMF、二氯甲烷、特戊酸、乙酰乙酸甲酯和高沸点固体杂质,其中DMF、特戊酸、乙酰乙酸甲酯的经济价值均极高。
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