Passivating metals on cracking catalysts

Details Passivating metals on cracking catalysts Passivating metals on cracking catalysts

1978-12-15

1979-12-11

Konopka, P. E.

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

252414, 252437, 252439, 252440, B01J 2120, B01J 2938, B01J 2702, B01J 2714

Patent

active

041782674

ABSTRACT:
Metals such as nickel, vanadium and iron contaminating a cracking catalyst are passivated by contacting the cracking catalyst under elevated temperature conditions with antimony selenide, antimony sulfide, antimony sulfate, bismuth selenide, bismuth sulfide, or bismuth phosphate.

REFERENCES:
patent: 2645605 (1953-07-01), Lang et al.
patent: 3417157 (1968-12-01), Pollitzer
patent: 3711422 (1973-01-01), Johnson et al.
patent: 3977963 (1976-08-01), Readel et al.
patent: 4025458 (1977-05-01), McKay
patent: 4031002 (1977-06-01), McKay
patent: 4111845 (1978-09-01), McKay
patent: 4141858 (1979-02-01), McKay

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