混合二元酸结晶分离技术研究进展  

Research progress of crystallization separation technology of dicarboxylic acid mixture

作　　者：王志彦 彭胜 金旺 吴春松[3] Wang Zhiyan;Peng Sheng;Jin Wang;Wu Chunsong(Coal Chemical R&D Center of Kailuan Group,Tangshan Hebei 064012,China;Tangshan Kailuan Chemical Technology Co.,Ltd.,Tangshan Hebei 063020,China;Tangshan Zhongrun Coal Chemical Co.,Ltd.,Tangshan Hebei 063611,China)

机构地区：[1]开滦煤化工研发中心,河北唐山064012 [2]唐山开滦化工科技有限公司,河北唐山063020 [3]唐山中润煤化工有限公司,河北唐山063611

出　　处：《煤化工》2023年第4期24-28,共5页Coal Chemical Industry

摘　　要：混合二元酸(DBA)中戊二酸(GA)、丁二酸(SA)、己二酸(ADA)均具有较高的市场价格和应用价值,对DBA进行分离提纯可获得高额附加值。介绍了DBA的分离方法,系统对比了DBA结晶分离GA、SA技术中,水、混合芳烃、正丁醇等溶剂体系的特点及该体系下操作控制参数、结晶方式等技术研究进展,提出了技术改进方向,为DBA的资源化、高附加值利用提供了参考。The glutaric acid(GA),succinic acid(SA)and adipic acid(ADA)in dicarboxylic acid mixture(DBA)have high market price and application value,and DBA separation and purification can get high added value.DBA separation method was introduced,with systematic comparison on the characteristics of water,mixed aromatic hydrocarbons,n-butanol and other solvent systems in the DBA crystallization and separation technology for GA and SA,as well as the research progress of operation control parameters,crystallization method and other technologies under this system.The direction of technical improvement was proposed,providing a reference for the recycling and high value-added utilization of DBA.

关 键 词：混合二元酸(DBA) 结晶分离 戊二酸(GA) 丁二酸(SA) 己二酸(ADA) 溶剂体系 溶解度 

分 类 号：TQ225.14[化学工程—有机化工]