氯油制备氯仿新工艺  

New preparation process of chloroform from chlorinated oil

作　　者：乐晓兵 

机构地区：[1]湖南株洲化工集团有限责任公司翔宇精细化工公司,湖南株洲412004

出　　处：《氯碱工业》2001年第3期26-29,共4页Chlor-Alkali Industry

基　　金：国家科技攻关项目![2 0 0 0 ]111号

摘　　要：介绍了一种采用二甲胺代替石灰与氯油反应 ,在生产氯仿的同时联产N ,N -二甲基甲酰胺的新工艺。该工艺的特点在于原料易得且价格低廉 ,具有独创性的萃取技术避免了使用干燥剂及其它助剂 ,理论上使三氯乙醛中碳的利用率达到 10 0 % ,无甲酸盐类物质排放。新工艺中试产品的质量优于石灰法产品质量 ,氯仿质量达到国标GB 4118- 92优等品要求 ,DMF产品达到HG 2 0 2 8- 91标准要求。而且采用新工艺后 ,公司氯仿成本比石灰法下降 1387.87元 /t ,环境污染问题也得到根本性解决 ,达到降低成本。In this paper, a new chloroform production process by reaction of chlorinated oil with dimethyl amine instead of lime is introduced,in which N,N-dimethyl methanamide is coproduct.The characteristics of this process lie in that the raw materials are easy to get and have low prices,its unique extraction technology avoid using drying agent and other assistants,the use ratio of carbon contained in trichlroacetic aldehyde reaches to 100% and there aren't formate substances to be discharged.The quality of pilot product produced by the new process is better than that of the product produced by lime

关 键 词：氯仿 氯油 制备 二甲胺 

分 类 号：TQ222.214[化学工程—有机化工]