Catalyst – solid sorbent – or support therefor: product or process – Zeolite or clay – including gallium analogs – Clay
Patent
1988-06-17
1990-12-11
Konopka, Paul E.
Catalyst, solid sorbent, or support therefor: product or process
Zeolite or clay, including gallium analogs
Clay
55 73, 423244, 423593, 423594, 423598, 423600, 502331, 502343, 502346, 502350, 502400, 502406, 502415, B01J 2116, B01J 2012, B01J 2372, B01J 2106
Patent
active
049771230
ABSTRACT:
A simple and effective method for producing bulk single and mixed oxide absorbents and catalysts is disclosed. The method yields bulk single oxide and mixed oxide absorbent and catalyst materials which combine a high macroporosity with relatively high surface area and good mechanical strength. The materials are prepared in a pellet form using as starting compounds, calcined powders of the desired composition and physical properties these powders are crushed to broad particle size distribution, and, optionally may be combined with an inorganic clay binder. The necessary amount of water is added to form a paste which is extruded, dried and heat treated to yield and desired extrudate strength. The physical properties of the extruded materials (density, macroporosity and surface area) are substantially the same as the constituent powder is the temperature of the heat treatment of the extrudates is approximately the same as the calcination temperature of the powder. If the former is substantially higher than the latter, the surface area decreases, but the macroporosity of the extrusions remains essentially constant.
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Flytzani-Stephanopoulos Maria
Jothimurugesan Kandaswami
Engellenner Thomas J.
Geary III William C.
Konopka Paul E.
Massachusetts Institute of Technology
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