Catalyst – solid sorbent – or support therefor: product or process – Zeolite or clay – including gallium analogs – Including organic component
Patent
1991-09-03
1993-03-09
Dees, Carl F.
Catalyst, solid sorbent, or support therefor: product or process
Zeolite or clay, including gallium analogs
Including organic component
502 63, 502 84, B01J 2016, B01J 2116
Patent
active
051927268
ABSTRACT:
This invention relates to a novel beidellite layered clay, a process for preparing the clay and a process using the clay. The clay is characterized in that it is substantially free of sodium cations, is composed of crystals whose average crystallites size is about 50-150 Angstroms, has a surface area of at least 80 m.sup.2 /g and has its 060 X-ray diffraction peak at a d-spacing of 1.50 Angstroms. The clay is prepared from a reaction mixture containing reactive sources of aluminum and silicon, a templating agent and water. Examples of templating agents are quaternary ammonium compounds such as tetramethylammonium hydroxide. Reactive source of aluminum and silicon include boehmite alumina and colloidal silica. The mixture is reacted at a pH of about 8.5 to about 14, a temperature of about 150.degree. to about 210.degree. C. for a time of about 1 to about 20 days. The clay composition may be used as is or after pillaring to catalyze hydrocarbon conversion processes such as alkylation.
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Dees Carl F.
McBride Thomas K.
Molinaro Frank S.
Snyder Eugene I.
UOP
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