50 ~ 60kg dichloromethane is added to the reactor (No.: etf085) through the diaphragm pump to wash the reactor, and nitrogen is pressed into the reactor (No.: etf075) through the process pipeline and filter.
Then, 50-60 kg dichloromethane is added into the reaction kettle (No.:ETF085) through the diaphragm pump to rinse the reaction kettle, and nitrogen is pressed into the reaction kettle (No.:ETF075) through the process pipeline and filter.