Process for the exchange of crystalline zeolites

Chemistry of inorganic compounds – Silicon or compound thereof – Oxygen containing

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C01B 3328

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active

044592710

ABSTRACT:
This invention relates to exchanging the sodium contained in a crystalline zeolite by partially removing sodium by exchange with another cation, partially drying the exchanged zeolite and re-exchanging the dried zeolite.

REFERENCES:
patent: 3402996 (1968-09-01), Maher et al.
patent: 3595611 (1971-07-01), McDaniel et al.
patent: 3607043 (1971-09-01), McDaniel et al.
patent: 3677698 (1972-07-01), Sherry et al.
patent: 4125591 (1978-11-01), Lindsley
patent: 4164483 (1979-08-01), Alafandi et al.
patent: 4269815 (1981-05-01), Lim et al.

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