Patent ID: 7273559
Filing Date: 2007-09-25
Classification: B01D

Abstract:
1. A process comprising: (a) routing an oxidizer purge stream to a solids enrichment zone to form a purge slurry comprising a metal catalyst, said oxidizer purge stream comprising a purge from an oxidizer mother liquor, said oxidizer mother liquor recycled to an oxidation zone, and obtained from a solid liquid separation zone; (b) subjecting said purge slurry to separation in a separation zone comprising a filtration zone and a washing zone, to produce a washed cake, mother liquor and a wash filtrate; wherein at least 80% of said metal catalyst from said purge slurry is recovered through said separation zone into said mother liquor and said wash filtrate cumulative; and (c) routing at least a portion of said metal catalyst recovered from said separation zone to said oxidation zone.