What precautions should be taken for the feeding and discharging of Reney nickel catalysts?
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Dear friends: I am planning to use Raney nickel as a catalyst for hydrogenation reactions in the near future. Since Raney nickel is highly flammable, and considering that the solvent is methanol and the hydrogenation reactor is a completely sealed system, I would appreciate it if you could advise me on how to ensure the safety of catalyst feeding and product discharge. Thank you all!
Feeding is carried out under nitrogen sealing, and discharging is also done using nitrogen pressure
As long as it’s not used, nothing will go wrong; keep the solvent sealed to prevent it from evaporating
Care ensures longevity; it is necessary to follow scientific methods. You can ask me
Could we consider using a different catalyst? I made a nickel-carbon catalyst myself; it doesn’t catch fire in air and can be used in a dry environment
This post was last edited by goldliyang on 2020-6-13 09:42. The three conditions required for an explosion or fire are oxygen, an ignition point, and a combustible material. Raney nickel is very dangerous; explosion accidents have occurred in many companies in China, and most of them were caused by a lack of proper attention. If you lack experience, it is recommended that you seek relevant information, especially from those who work with Raney nickel hydrogenation catalysts or use such catalysts.
Care must indeed be taken when using Reney nickel; it would of course be better to use supported nickel (which does not catch fire when exposed to air). If possible, replace the catalyst