| 摘要 |
PCT No. PCT/GB95/02221 Sec. 371 Date Mar. 14, 1997 Sec. 102(e) Date Mar. 14, 1997 PCT Filed Sep. 19, 1996 PCT Pub. No. WO96/09110 PCT Pub. Date Mar. 28, 1996A process for treatment of zeolite membranes to improve performance which comprises contacting the membrane with a silicic acid or a mixture of silicic acids. |
