Catalyzed hypochlorite decomposition process
AssigneeImperial Chemical Industries PLC
InventorMaoliosa Carlin
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Abstract
A process wherein a particulate catalyst, which is disposed in at least two serially connected beds, is contacted by a hypochlorite containing liquid to decompose the hypochlorite and evolve oxygen is improved by arranging that the liquid flows in a direction counter to that of the evolved oxygen in each of the beds. The efficiency with which the hypochlorite is decomposed is greater than when the liquid is in cocurrent or alternating co and counter current flow.
Claims4
A catalysed hypochlorite decomposition process comprising contacting a hypochlorite ion containing liquid stream with a particulate catalyst that is capable of decomposing hypochlorite ions with the liberation of gaseous oxygen, disposed in at least two serially connected beds arranged in cascade with risers free of catalyst between successive beds, said liquid stream being passed down through at least the first two of said serially connected beds, substantially in counter current flow to the gaseous oxygen liberated by the decomposition of the hypochlorite ions and up through the risers between the successive beds, under the action of gravity.
Dependencies are inferred from the claim text.