Patent ID: 7309679

Claim:
A method of making a catalyst for use in the process of converting oxygenates to olefins comprising: providing a reaction mixture comprising aluminum, phosphorus, water, an organic template and an element selected from the group consisting of silicon, magnesium, zinc, iron, cobalt, nickel, manganese, chromium, and mixtures thereof, to form a non-zeolitic molecular sieve having a chemical composition on an anhydrous basis expressed by an empirical formula of: (El x Al y P z )O 2 wherein “x” is the mole fraction of El and has a value of at least 0.001, “y” is the mole fraction of Al and has a value of at least 0.01, “z” is the mole fraction of P and has a value of at least 0.01 and x+y+z=1, crystallizing the molecular sieves at a temperature between about 100° C. and about 250 °C.; and washing the molecular sieve, without drying the molecular sieve; adding a first binder comprising sodium silicate and acid alum to the washed molecular sieve to form a catalyst slurry; spray drying the catalyst slurry, and calcining at a temperature greater than 500° C. to form an attrition resistant catalyst.