Confirm the end of thereactor www.gfanyingfu.com after reaction, hydrogen to slow discharge (note that in slightpressure to close the exhaust valve, the inlet valve is opened, oxygen enters),nitrogen gas into the 0.2Mpa to close the inlet valve, and then slowly open theexhaust valve, the mixed gas released inside, will do when the new input ofnitrogen, so ventilation three after using the vacuum pump out of gas on thesurface, open the exhaust valve, sampling valve, discharge valve from the start(note that because there are oxygen in the spontaneous combustion of substancessuch as Pa/c, RaneyNi and so on in the container, put an end to outside) ifthere is leakage, please be with a wet towel immediately into there is water inthe barrel, with a small amount of dilute acid will destroy the discharge valveimmediately shut down the bottom end.
After discharge the reactionvessel, should be cleaned immediately before cleaning should be carried outaccording to the following steps:
1,the reaction solvent from the exhaust valve charging into the tank, cleaningout most of the residues, the injection of water into the pot for 10 minutes,then open the lid, the inner wall of the tank cleaning;
2,cleaning, must clean the kettle cover, sampling valve, while there is water inthe kettle, a little filling nitrogen;
3,temporarily without the reactor, it is best to add 70% volume of the reactorinto a clean ethanol soak, you can not tighten the screws.