【摘要】 以吡啶为原料，以先进的氰化钠催化法合成除草剂百草枯，总收率≥９０％，有效成分阳离子浓度≥３８％更多还原

【Abstract】 A new synthetic process was used in preparing paraquat by using pyridine as raw material and sodium cynide as catalyst.The total yield exceeds 90%,and the content of the paraquat cation in the product solution is more than 38%.更多还原