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作 者:李建芬[1]
机构地区:[1]武汉工业学院生物与化学工程系,武汉430023
出 处:《化工时刊》2003年第6期25-27,共3页Chemical Industry Times
摘 要:二溴次氮基两酰胺(DBNPA)是一种环保型杀菌灭藻剂和水处理剂。通过实验,发现了合成它的最佳氧化剂,即在H_2O的作用下,使Br_2与氰基乙酰胺(CAA)溶液一起加热回流,可制备高产率的二溴次氮基丙酰胺,H_2O_2的作用是使反应中产生的HBr氧化为Br_2而被循环利用。同时,还对合成工艺及污染控制技术进行了研究,找到了最佳的反应条件,使DBNPA的产率达95%以上。并且控制了污染问题,基本无三废排放,为实现DBNPA的绿色生产技术,提供了参考依据。2,2- dibromo - 3 - nitrilopionamide ( DBNPA) [ 10222 - 01 ] is a ideal environmental protection agent as biocide - algaecide and water treatment agent. The optimal oxidant was found in the expriment. DBNPA was prepared. Effi -ciently by reacting CAA with Br2 in the presence of H2O2. The action of H2O2 was that excessive HBr produced in the reaction was transformed into Br2 which could be recycled. At the same time, the synthetic condition and controling pollution technology were studied in this paper.The best of reaction conditions was founded out, and the yield of DBNPA was over 95 % . Controlled the contaminative problem, hardly any the waste gas and the waste liquid and the waste residue to exhaust, the new process is valuable for green chemical industry.
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