Continuous production is the development direction of chemical industry.From the view of the impurity types,contents and separation characteristics of the separation system,the two-phase flow and mass transfer characteristics of the liquid-liquid extraction and separation process involved in the process of clethodim production are systemically studied in this work.A series of extraction equipment,such as high-efficiency extraction column,tubular mixer-settler and coalescing and separating material,has been developed,which has been successfully applied to several extraction and separation process of clethodim production and realized continuous automatic production.The application of high efficiency extraction equipment solves the problems existing in the production of traditional stirred tank reactor,such as leakiness,unstable quality,large amount of waste water,high energy consumption and poor safety.And,it promotes the continuous improvement of pesticide chemical production technology.
关键词
烯草酮/萃取塔/管式萃取器/聚结分离材料/连续化
Key words
clethodim/solvent extraction column/tubular mixer-settler/coalescing and separating material/continuous production