二元酸是宝貴的化工原料,分子中碳原子数在四个以上的二元酸,如丁二酸、已二酸、辛二酸、壬二酸及癸二酸等都是合成纤維、合成树脂及增塑剂等高分子工业的重要单体,也是医药、染料等有机合成工业的原料。目前它們一般的生产方法都是从来源少而价較貴的原料通过繁复或昂貴的方法合成的。随着高分子工业的日益发展, Dibasic acid is a valuable chemical raw material, the number of carbon atoms in the molecule more than four dibasic acids, such as succinic acid, adipic acid, suberic acid, azelaic acid and sebacic acid are all synthetic fibers, Synthetic resin and plasticizers and other polymer industry, an important monomer, but also medicine, dyes and other organic synthesis industry raw materials. At present, their general production methods are synthesized from cumbersome and expensive raw materials from less expensive sources. With the development of the polymer industry,