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公开(公告)号:EP1140740B1
公开(公告)日:2012-03-28
申请号:EP99965748.9
申请日:1999-11-04
IPC分类号: C01B39/38
CPC分类号: C01B39/38 , B01J29/04 , B01J29/40 , C01B39/40 , C07C5/2702 , C07C6/123 , C07C2529/40 , C07C15/067
摘要: A synthetic porous cystalline material has the structure of ZSM-5 and a composition involving the molar relationship: X2O3:(n)YO2, wherein X is a trivalent element; Y is a tetravalent element; and n is less than 25, and wherein the slope of the nitrogen sorption isotherm of the material at a partial pressure of nitrogen of 0,4 to 0,7 and a temperature 77 °K is greater than 30. The material has a mesoporous surface area (MSA) greater than 45 m2/g and is useful as a catalyst in the liquid phase isomerization of xylene.
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公开(公告)号:EP0914308B1
公开(公告)日:2002-09-04
申请号:EP97931077.8
申请日:1997-06-09
发明人: CHESTER, Arthur, Warren , FUNG, Shiu, Lun, Anthony , KRESGE, Charles, Theodore , ROTH, Wieslaw, Jerzy
CPC分类号: B01J29/80 , B01J29/084 , B01J29/70 , B01J29/7038 , B01J2229/12 , B01J2229/42 , C01B33/38 , C07C2/58 , C07C2/66 , C07C2529/70 , C10G11/05
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公开(公告)号:EP1163189A1
公开(公告)日:2001-12-19
申请号:EP99949667.2
申请日:1999-09-23
发明人: ROTH, Wieslaw, Jerzy
CPC分类号: C01B37/02 , C01P2002/72
摘要: A method for synthesizing MCM-48 includes reacting an inorganic silica reagent an alkylammonium hydroxide and halide-containing surfactant in an aqueous medium under conditions to form a crystalline MCM-48 product. Alternatively, the first two reagents are combined in an aqueous medium to form a first reaction mixture. This first reaction mixture then is combined with a halide-containing surfactant to form a second reaction mixture that is maintained under sufficient conditions to form a crystalline MCM-48 product.
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