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潍坊晨泽化工有限公司

WEIFANG CHENZE CHEMICAL CO.,LTD.

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Safety procedures for the use of bromine

Safety procedures for the use of bromine

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Release time:
2017/10/28
1. Check that all equipment in the bromination unit is clean, that the valve is in the correct position, that the water and electricity are supplied normally, and that the vacuum system and the exhaust gas absorption system are operating normally.
 
2. Wear the specified safety protective equipment, open the exhaust gas absorption system, open the bromine pump vacuum pump, close the bromine high tank bottom valve, vent valve, open its vacuum valve, feed valve, and draw the dichloroethane into In the high-level tank of bromine, the bromine is pumped into the high tank. (Extraction step: Transfer the bromine from the storage tank to the bromine high-position tank. Close the vacuum valve, the feed valve, and open the vent valve. ).
 
3. Open the bromine drop plus high tank vent valve, feed valve, bromine high tank bottom valve, and put the bromine-containing dichloroethane into the bromine drop high tank.
 
4. Close the bromine high tank bottom valve, vent valve, open the vacuum valve, feed valve, pump all the remaining dichloroethane into the bromine high tank, close the vacuum valve, feed valve, and open the vent valve.
 
5. Open the bromine drop high tank vent valve, feed valve, bromine high tank bottom valve, and put the remaining dichloroethane into the bromine drop high tank. Close the vacuum valve, feed valve, open the vent valve, and stop the bromine pump vacuum pump.
 
6. When the temperature of the bromide is controlled at 25-30 °C, open the brominator vent valve, the bromine drop plus the high tank bottom valve, and the discharge valve for 40-60 seconds to close the discharge valve. After the reaction was initiated, the bromine dichloroethane solution was placed in the kettle by a light open valve control for 3 hours.
 
7. Observe the sight before the discharge valve. After the color is lightened, immediately close the discharge valve. After the sample is confirmed to be brominated, the remaining solution of the bromine drop plus the high tank is placed in the bromination kettle.
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