| 摘要 |
PROBLEM TO BE SOLVED: To provide a production method of a zeolite membrane and a zeolite powder generating the zeolite membrane and the zeolite powder having high crystallinity.SOLUTION: In a production method of a zeolite membrane and a zeolite powder including a first step preparing a raw material liquid containing a silicon source, an aluminum source, an alkali source and water, a second step preparing a porous support and a third step generating a zeolite having a first structure by the hydrothermal treatment of the raw material liquid under the existence of the porous support,: a ratio (HO/Si) of water to a silicon atom contained in the silicon source is, in molar ratio, larger than 30 and 300 or less; a part of the zeolite having the first structure forms a zeolite membrane on the surface of the porous support; and the balance of the zeolite having the first structure is precipitated as a zeolite powder.SELECTED DRAWING: Figure 1A |
