打开反应釜（编号：ETF049）的加热系统，维持反应釜（编号：ETF0

打开反应釜（编号：ETF049）的加热系统，维持反应釜（编号：ETF049）内温40±5oC，密闭搅拌2小时。反应釜（编号：ETF049）冷却至30±5oC后，将反应釜（编号：ETF049）中的二氯甲烷经底阀，工艺管道和微孔过滤器（编号：EGL027），氮气压入反应釜（编号：ETF073）。再通过隔膜泵往反应釜（编号：ETF049）中加入50~60kg二氯甲烷淋洗反应釜，淋洗液经工艺管道氮气压入反应釜（编号：ETF073）。

Open the heating system of the reactor (No.: etf049), maintain the internal temperature of the reactor (No.: etf049) at 40 ± 5oC, and stir for 2 hours. After the reactor (No.: etf049) is cooled to 30 ± 5oC, press the dichloromethane in the reactor (No.: etf049) into the reactor through the bottom valve, process pipeline and microporous filter (No.: egl027), and press nitrogen into the reactor (No.: etf073). Then add 50 ~ 60kg dichloromethane to the reactor (No.: etf049) through the diaphragm pump to leach the reactor, and the leach solution enters the reactor (No.: etf073) through the nitrogen pressure of the process pipeline.

Turn on the heating system of the reaction kettle (No.:ETF049), keep the internal temperature of the reaction kettle (No.:ETF049) at 40±5oC, and stir in a closed manner for 2 hours. After the reaction kettle (No.:ETF049) is cooled to 30±5oC, dichloromethane in the reaction kettle (No.:ETF049) passes through the bottom valve, process pipeline and microporous filter (No.:EGL027), and nitrogen is pressed into the reaction kettle (No.:ETF073). Then, 50-60 kg dichloromethane is added into the reactor (No.:ETF049) through the diaphragm pump to leach the reactor, and the eluent is pressed into the reactor (No.:ETF073) through the process pipeline nitrogen.