- The catalyst slurry should be manually stirred using a steel rod / spoon to restore it in suspension for easy and smooth transfer.
- Care should be taken while transferring catalyst so as to avoid/ minimise spillage of the catalyst. skilled personnel should be employed for handling the catalyst.
- In the event of spillage of small quantity, the spilled material may be deactivated by using a 0.5 % solution of potassium permanganate followed by flushing the area with sufficient water.
- In the event of spillage of significant quantity, the spilled catalyst slurry should be collected back manually and put in a polythene bag thereafter be packed in a plastic or M.S.Container and retrieval of the spilled catalyst should be flushed with water. A 0.5 % solution of Potassium Permanganate [KMnO4] may also be used as an additional measure.
- In the event of contact with skin, the skin should be washed immediately with running water. Dry with a clean towel and apply a soothing ointment (viz soframycin).
- Empty polythene bags and containers after transfer of catalyst should be washed profusely with water before scrapping them.
- Great care should be taken in deciding temperature and pressure condition and selection of solvent for the hydrogenation reaction.
DISPOSAL PRECAUTIONS :-
Nickel is a costly metal. Do not therefore discard even such of the spent Raney Nickel Catalysts which can not be reactivated any more.
Even such a material can fetch good money from the manufacturers of Nickel salts.