Catalyst – solid sorbent – or support therefor: product or process – Zeolite or clay – including gallium analogs – And additional al or si containing component
Patent
1989-11-28
1991-10-15
Dees, Carl F.
Catalyst, solid sorbent, or support therefor: product or process
Zeolite or clay, including gallium analogs
And additional al or si containing component
502 74, 502 78, B01J 2918, B01J 2920
Patent
active
050574728
ABSTRACT:
The instant invention comprises a process for concurrently dealuminating and ion exchanging an acid stable sodium ion-containing zeolite by contacting the zeolite with an about 0.5M to about 3M nitric acid solution containing ammonium nitrate in an amount sufficient to fully exchange the sodium ions for ammonium and hydrogen ions at a temperature of at least about -10.degree. C. The instant invention also relates to the zeolites thus prepared by the instant process and catalysts prepared utilizing these zeolites.
REFERENCES:
patent: 3442794 (1969-05-01), Van Helden et al.
patent: 3475345 (1969-10-01), Benesi
patent: 3507931 (1970-04-01), Morris et al.
patent: 3597155 (1971-08-01), Flanigen
patent: 4018711 (1977-04-01), Bertolacini
patent: 4447669 (1984-05-01), Hamon et al.
patent: 4665272 (1987-05-01), Bakas et al.
Hertzengerg Elliot P.
Murray Brendan D.
Pasquale Gary M.
Winquist Bruce H. C.
Dees Carl F.
McCollough Pamela J.
Shell Oil Company
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