众所周知,吡啶是农药、医药、日用化学品等产业的基础原料之一,生产吡啶过程中副产的取代吡啶也是难得的化学工业原料。特别是农药除草剂氨氰法百草枯生产工艺的国产化开发成功带来的大规模产业化,极大刺激了吡啶的需求,迅速开阔了吡啶产品的市场,保守统计,吡啶产量的60%以上用以生产百草枯,80%的含氮杂环类医药、农药和大量化 As we all know, pyridine is one of the basic raw materials for pesticides, pharmaceuticals, household chemicals and other industries. It is also a rare raw material for the production of pyridine, a byproduct of substituted pyridine in the chemical industry. In particular, the large-scale industrialization brought about by the domestication and development of the pesticide herbicide cyanamide paraquat production process has greatly stimulated the demand for pyridine and rapidly opened up the market for pyridine products. The conservative statistics show that more than 60% of the production of pyridine For the production of paraquat, 80% of nitrogen-containing heterocyclic drugs, pesticides and mass