NOVEL METHODS FOR PRODUCING CRYSTALLINE MICROPOROUS SOLIDS WITH THE HEU TOPOLOGY AND COMPOSITIONS DERIVED FROM THE SAME

摘要

This disclosure relates to new crystalline microporous solids (including silicate- and aluminosilicate-based solids), the compositions comprising 8 and 10 membered inorganic rings, particularly those having HEU topologies having a range of Si:Al ratios, methods of preparing these and known crystalline microporous solids using certain quaternized imidazolium cation structuring agents.

主权项

1. A process comprising hydrothermally treating a composition comprising:
(a) (i) at least one source of a silicon oxide, germanium oxide, or combination thereof; and optionally
(ii) at least one source of aluminum oxide, boron oxide, gallium oxide, hafnium oxide, iron oxide, tin oxide, titanium oxide, indium oxide, vanadium oxide, zirconium oxide, or combination or mixture thereof; and (b) a linked pair of quaternary imidazolium cations of a structure:under conditions effective to crystallize a crystalline microporous solid of HEU topology;
wherein t is 3, 4, 5, or 6; and R is independently methyl or ethyl, and n is independently 1, 2, or 3;said linked pair of quaternary imidazolium cations having associated fluoride or hydroxide ions, preferably substantially free of other halide counterions.