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简要长链二元酸是指含有10个以上碳原子的直链二羧酸。它是一类用途很广的重要精细化工原料,是许多化工产业中必用的重要中间原料。长链二元酸在自然界不存在,生产这种产品有两种方法:一种是化学合成法,一种是生物发酵法。化工合成法生产危险性大,成本高。微生物发酵法生产工艺简单,成本低。化工合成法无法合成c11～c18的所有长链二元酸,而发酵法可以制得。长链二元酸可以合成人造麝香、共聚酰胺塑料热熔胶、尼龙工程塑料、高级尼龙喷麽、高温电解质、高档服装热熔胶、耐寒增塑剂、高级润滑油、高级汽车油漆、防紫外线涂料、合成光缆导体等众多精细化工产品。二元酸被广泛应用于化工,轻工,国防、汽车工业、农药,医药,工程材料,晶体材料等领域。
Briefly, long chain dibasic acids refer to straight-chain dicarboxylic acids containing more than 10 carbon atoms. It is a very important class of fine chemical raw materials, is an essential intermediate material used in many chemical industry. Long-chain dicarboxylic acids do not exist in nature, there are two ways to produce this product: one is the chemical synthesis method, one is the biological fermentation method. Chemical synthesis production of dangerous, high cost. Microbial fermentation production process is simple, low cost. Chemical synthesis method can not synthesize c11 ~ c18 all long-chain dicarboxylic acid, and fermentation can be obtained. Long-chain dicarboxylic acid can be synthetic artificial musk, copolyamide plastic hot melt adhesive, nylon engineering plastics, advanced nylon spray what, high temperature electrolyte, high-grade clothing hot melt adhesives, cold plasticizers, senior lubricants, advanced automotive paint, UV Paint, synthetic fiber optic cable and many other fine chemical products. Dicarboxylic acids are widely used in chemical, light industry, defense, automotive, pesticides, pharmaceuticals, engineering materials, crystal materials and other fields.