Patent ID: 8637416
Filing Date: 2014-01-28
Classification: B01J

Abstract:
1. A method for manufacturing a zeolite membrane comprising: a surface layer forming step for forming a surface layer by attaching a low polar polymer having a solubility parameter (SP value) of 8.0 (cal/cm a filling step for filling a high polar polymer having low compatibility with the low polar polymer and a SP value of above 8.0 (cal/cm a surface layer removing step for removing the surface layer, a seed crystal attaching step for attaching a seed crystal functioning as a seed for forming a zeolite membrane on the first surface of the porous substrate where the surface layer has been removed, a membrane forming step for forming a dense zeolite membrane containing a structure directing agent on the first surface of the porous substrate by growing the seed crystal, and a removing step for removing the structure directing agent from the dense zeolite membrane and removing the masking polymer from the porous substrate.