Cracking catalysts passivated by tungsten

Details Cracking catalysts passivated by tungsten Cracking catalysts passivated by tungsten

1979-07-23

1981-09-22

Gantz, Delbert E.

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

208 52CT, 208114, 208120, 252411R, 252422, 252423, 252439, 252455Z, C10G 1105

Patent

active

042909198

ABSTRACT:
Metals such as nickel, vanadium and iron contaminating a cracking catalyst are passivated by contacting the cracking catalyst under elevated temperature conditions with tungsten and compounds of tungsten.

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patent: 3821324 (1974-06-01), Bertus
patent: 4031002 (1977-06-01), McKay
patent: 4146463 (1979-03-01), Radford et al.
patent: 4217205 (1980-08-01), Marcilly et al.

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