Appeal No. 2006-0545 Page 2
Application No. 10/019,273
BACKGROUND
The present invention relates to a process for the production of propylene
comprising contacting a mixture of hydrocarbons with a catalyst composition under
cracking conditions, thereby producing a product comprising propylene. Representative
claims 1 and 20, as presented in the appendix to the Brief, appear below:
1. A process for the production of propylene comprising contacting a
mixture of hydrocarbons with a catalyst composition under cracking
conditions, thereby producing a product comprising propylene from said
mixture,
wherein the mixture of hydrocarbons comprises predominately
olefins, the mixture has a boiling point ranging from -15°C to +80°C, the
catalyst composition comprises a large pore zeolite comprising a lattice of
12 tetrahedrons, and the zeolite has a molar ratio of silica/alumina from
100 to 200.
20. A process for the production of propylene comprising contacting a
mixture of hydrocarbons with a catalyst composition under cracking
conditions, thereby producing a product comprising propylene from said
mixture,
wherein the mixture of hydrocarbons comprises predominately
olefins, the mixture has a boiling point ranging from -15°C to +80°C, the
catalyst composition comprises a large pore zeolite comprising a lattice of
12 tetrahedrons, and the zeolite has a molar ratio of silica/alumina less
than 200; and
wherein the zeolite is prepared by the steps comprising:
contacting sodium aluminate with an aqueous solution of
tetramethyammonium hydroxide to form a mixture,
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