Process for magnetic beneficiating petroleum cracking catalyst

Details Process for magnetic beneficiating petroleum cracking catalyst Process for magnetic beneficiating petroleum cracking catalyst

1992-08-20

1993-10-05

Konopka, Paul E.

Catalyst, solid sorbent, or support therefor: product or process

Irradiation by, or application of, electrical, magnetic or...

208 52CT, 208120, 209224, 209232, 502 21, 502516, 502521, B01J 2938, B01J 3734, C01G 1105, B03C 136

Patent

active

052504824

ABSTRACT:
A process for beneficiating a particulate zeolite petroleum cracking catalyst having metal values in excess of 1000 ppm nickel equivalents. The particulate catalyst is passed through a magnetic field in the range of from about 2 Tesla to about 5 Tesla generated by a superconducting quadrupole open-gradient magnetic system for a time sufficient to effect separation of said catalyst into a plurality of zones having different nickel equivalent concentrations. A first zone has nickel equivalents of about 6,000 ppm and greater, a second zone has nickel equivalents in the range of from about 2000 ppm to about 6000 ppm, and a third zone has nickel equivalents of about 2000 ppm and less. The zones of catalyst are separated and the second zone material is recycled to a fluidized bed of zeolite petroleum cracking catalyst. The low nickel equivalent zone is treated while the high nickel equivalent zone is discarded.

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patent: 5141904 (1992-08-01), Kubicek et al.
patent: 5147527 (1992-09-01), Hettinger
patent: 5151391 (1992-09-01), Fu et al.
Modern Petroleum Technology, 4th edition, Hobson & Pohl, pp. 288-309-(1975).

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