氯霉素生产废液中回收氯苯(含对硝基苯乙酮)及甲醛缩二乙醇的工艺研究  

Recovery of Chlorobenzene Including pNitroacetophenone and Formaldehyde Diethyl Acetal from Waste Water during Production of Chloramphenicol

作　　者：雷金铃[1] 李洲[1] 

机构地区：[1]清华大学化工系,北京100084

出　　处：《中国医药工业杂志》2001年第3期136-138,共3页Chinese Journal of Pharmaceuticals

摘　　要：研究了从氯霉素生产废液中回收氯苯等芳香族化合物和甲醛缩二乙醇的方法 ,先用酸解法在常温下将废液中的甲醛缩二乙醇分解成可溶于水的甲醛及乙醇 ,而与氯苯等分离 ,回收的氯苯纯度达 98%以上。而后 ,蒸馏酸解液 ,可重新合成并回收甲醛缩二乙醇。The recovery technology of chlorobenzene、 p nitroacetophenone and formaldehyde diethyl acetal from the waste water during the production of chloramphenicol was studied. At first, under the existing of acid formaldehyde diethyl acetal was decomposed into formaldehyde and alcohol at ambient temperature. The latters were soluble in the water layer and could be separated from chlorobenzene and others. The purity of chlorobenzene reached up to 98%. Then, the acid decomposition aqueous solution was distilled to recover formaldehyde diethyl acetal.

关 键 词：氯霉素 氯苯 甲醛缩二乙醇 对硝基苯乙酮 回收 生产废液 

分 类 号：TQ465.3[化学工程—制药化工] X787.03[环境科学与工程—环境工程]