Treating cracking catalyst fines containing a passivating materi

Details Treating cracking catalyst fines containing a passivating materi Treating cracking catalyst fines containing a passivating materi

1980-06-25

1982-09-07

Gantz, Delbert E.

Mineral oils: processes and products

Chemical conversion of hydrocarbons

Cracking

208 52CT, 208120, 208127, 208152, 252411R, 405128, C10G 1118

Patent

active

043482732

ABSTRACT:
In a hydrocarbon conversion operation employing a fluidized cracking catalyst wherein the cracking catalyst has been passivated to render contaminating metals thereon substantially inactive thus to avoid undesired reactions and wherein the used catalyst is regenerated and the regeneration step yields catalyst fines and a flue gas and the flue gas and fines are separated in at least two stages a first stage yielding coarse fines and a later stage yielding finer fines the step of treating finer fines to render metals thereon non-leachable or having substantially reduced leachability to render the finer fines usable as land fill which comprises treating the finer fines with a tin and/or indium and/or a compound of tin and/or a compound of indium.

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