abstract |
Using at least one selected from 1,4 pairs of (N propyl pyrrole alkane ) two cation of butane, 1,4 pairs of (N butyl pyrrolidines ) butane two cation and 1,5 pairs of (N propyl pyrrole alkane ) pentane two cation two quaternary ammonium compounds be used as structure directing agent prepare with the structures of COK 5 molecular sieve. |