公开(公告)号：EP1701914A2

公开(公告)日：2006-09-20

申请号：EP04814873.8

申请日：2004-12-20

申请人： ExxonMobil Chemical Patents, Inc., A Corporation of the State of Delaware

发明人： CAO, Guang ,  MERTENS, Machteld, M. ,  STROHMAIER, Karl, G. ,  HALL, Richard, B. ,  COLLE, Thomas, H. ,  AFEWORKI, Mobae ,  BONS, Antonie, Jan ,  MORTIER, Wilfried, J. ,  KLIEWER, Chris ,  LI, Hailian ,  GURAM, Anil, S. ,  SAXTON, Robert, J. ,  MURAOKA, Mark, T. ,  YODER, Jeffrey, C.

IPC分类号： C01B39/02

CPC分类号： C01B39/46 ,  C01B37/02 ,  C01B39/023 ,  C01B39/48 ,  C10G3/45 ,  C10G3/49 ,  C10G3/62 ,  C10G2300/708 ,  C10G2300/802 ,  C10G2400/20 ,  Y02P30/20 ,  Y02P30/42

摘要： A crystalline material substantially free of framework phosphorus and comprising a CHA framework type molecular sieve with stacking faults or at least one intergrown phase of a CHA framework type molecular sieve and an AEI framework type molecular sieve, wherein said material, in its calcined, anhydrous form, has a composition involving the molar relationship: (n)X 2 O 3 :YO 2 , wherein X is a trivalent element; Y is a tetravalent element; and n is from 0 to about 0.5. The material exhibits activity and selectivity in the conversion of methanol to lower olefins, especially ethylene and propylene.