A MICROSPHERE CATALYST USED FOR CONVERTING OXYGEN COMPOUND TO OLEFINE AND PREPARATION METHOD THEREOF

摘要

A microsphere catalyst used in converting oxygen compound to olefine and preparation method thereof. The catalyst is consisted of silica, phosphor oxides and alumina, may also contain alkaline earth metal oxides and transitional metal oxides, the mass content of each component is silica 2-60%, phosphor oxides 8-50%, alumina 20-70%, alkaline earth metal oxides 0-10%, transitional metal oxides 0-20%, the sum of mass content of each component is 100%. Using specific SAPO molecular sieve or transitional metal contained SAPO molecular sieve as active component of the catalyst, mixing it with materials containing oxide components and organic substances used as pore forming agent, preparing a slurry having a given solid content, fully colloid milling, spray drying and calcining under high temperature, then the microsphere catalyst with an abrasion index less than 2 can be obtained.