Process for producing substantially binder-free zeolite

Details Process for producing substantially binder-free zeolite Process for producing substantially binder-free zeolite

1994-11-07

1995-10-24

Bell, Mark L.

Chemistry of inorganic compounds

Zeolite

423716, 423DIG21, 423DIG22, 423DIG26, 423DIG27, 423DIG33, 423DIG35, 423DIG36, 423DIG38, C01B 3902, C01B 3936

Patent

active

054607965

ABSTRACT:
Silica-bound extruded zeolites may be converted into binder-free zeolite aggregates by aging the zeolite in an aqueous ionic solution which contains hydroxy ions such that the initial molar ratio of OH-:SiO.sub.2 is up to 1.2 and which causes the silica binder to be converted substantially to zeolite of the type initially bound. Such extrudates have excellent mechanical strength and show advantageous properties such as adsorption comparable with non-extruded zeolite powder.

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