A process for treating zeolite membranes to improve their performance and to improve their coherence consists of forming a film of zeolite material on a porous support to form a zeolite membrane, contacting the membrane with tetraethylorthosilicate (TEOS), and reacting said TEOS with said zeolite membrane to form a supported membrane with open pores without defective pin holes. The process may further comprise pre-treatment of the porous support with a zeolite initiating agent, or post-treatment of the treated membrane with a silicic or polysilicic acid.
申请公布号
EP0956149(A1)
申请公布日期
1999.11.17
申请号
EP19970915578
申请日期
1997.04.02
申请人
BRATTON, GRAHAM JOHN;BUCK, KARON DOREEN;NAYLOR, TIMOTHY DE VILLIERS
发明人
BRATTON, GRAHAM JOHN;DE VILLIERS NAYLOR, TIMOTHY;BUCK, KARON DOREEN