Conditions to be followed for laboratory hydrogenation reactor operation

1. Before turning on the current switch of the console, the stirring switch and speed regulating heating switch should be adjusted to zero.
2. Before feeding, rinse the inner wall, stirring and joint surfaces of the autoclave with distilled water. After rinsing the joint surfaces, wipe them with cotton or silk cloth dipped in ethanol, and then slowly close the upper cover to avoid damaging the joint surfaces.
3． When tightening the screws, be sure to install them correctly and use a torque wrench to form a cross-shaped symmetrical ground to avoid uneven stress. Do not twist the screws into place all at once; tighten them symmetrically and gradually.
4． After tightening the screws, first use a mechanical pump to evacuate, and then repeatedly pass nitrogen gas two to four times to exhaust the air in the kettle, then vacuum, pass in hydrogen, start stirring, raise the temperature, and operate normally.
5． After the reaction is completed, stop stirring, exhaust the remaining hydrogen in the kettle, then add nitrogen, vent, and unscrew the screws to take samples.
6. The 5L hydrogenation reactor is not resistant to strong acids, and strong acids such as hydrochloric acid, sulfuric acid, and nitric acid are prohibited in the reaction solution.
7. It is prohibited to do any work that produces sparks near the hydrogenation reactor, and it is prohibited to wear nail shoes for operation.