Patent ID: 7384883

Claim:
A process for producing a catalyst for olefin cracking, the processing comprising the steps of: providing an MFI type catalyst with a crystalline silicate framework; formulating said MFI type crystalline silicate catalyst with a binder comprising silica to produce a formulated catalyst; heating the formulated catalyst in steam to remove aluminum from the crystalline silicate framework; extracting aluminum from the formulated catalyst by contacting the catalyst with a complexing agent to remove aluminum from pores of the framework deposited therein during the steaming step, thereby increasing the silicon/aluminum atomic ratio of the catalyst; calcining the formulated catalyst at an elevated temperature; wherein said MFI type crystalline silicate catalyst at the conclusion of the steaming and extraction of aluminum has a silicon/aluminum atomic ratio of at least 120; and contacting the MFI type crystalline silicate catalyst with olefins, wherein said catalyst is used to crack said olefins.