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发表于 2016-9-22 17:43:07
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本帖最后由 beiwei5du 于 2016-9-22 17:50 编辑
是加入到下一批的重结晶料里面是什么意思呢??
1、是在下一批重结晶的时候加入进去???这种情况下精制步骤相应的体积量和料液比也发生了改变;
2、是作为下一批的精制溶剂使用???这种情况下精制步骤相应的料液比也发生了改变;
不知道这种是怎么处理的呢??我个人还是建议单独对母液进行物料回收比较好,进行相应的工艺验证比较好??不知道各位老师是怎么的做的呢??@hongwei2000 @意林枫
直接套用(不处理)母液是否允许呢??我在Q7A中没有明确的找到相关的证据呢????
14.4 Recovery of Materials and Solvents14.40 Recovery (e.g. from mother liquor or filtrates) of reactants, intermediates, or the APIis considered acceptable, provided that approved procedures exist for the recoveryand the recovered materials meet specifications suitable for their intended use.
14.41 Solvents can be recovered and reused in the same processes or in different processes,provided that the recovery procedures are controlled and monitored to ensure thatsolvents meet appropriate standards before reuse or co-mingling with otherapproved materials.
14.42 Fresh and recovered solvents and reagents can be combined if adequate testing hasshown their suitability for all manufacturing processes in which they may be used.
14.43 The use of recovered solvents, mother liquors, and other recovered materials shouldbe adequately documented.
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