IM-5 FIBROUS IM-5 MOLECULAR SIEVE AND PREPARATION PROCESS THEREOF

摘要

The present invention relates to a fibrous IM-5 molecular sieve and a process for producing the same. An appropriate amount of a quaternary ammonium salt having a long carbon chain is added to the IM-5 molecular sieve manufacturing system and a molar ratio of the template / surfactant is about 5 to about 20, the surfactant and the organic template have a synergistic effect, The initial rod-shaped IM-5 molecular sieve becomes fibrous. Compared with rod-shaped IM-5 molecular sieve, the fibrous IM-5 molecular sieve has a larger aspect ratio and thus has a relatively high exposure ratio of the peripheral crystal face, thereby improving the selectivity of the corresponding catalytic reaction on the crystal face Promote.