Patent ID: 7951738

Claim:
A process for production of a zeolite separation membrane, comprising: a seed crystal-attaching step in which: a tubular porous body, wherein one end is sealed with a sealing member and the other end is open, is immersed from the sealing member end into a suspension containing zeolite seed crystals while keeping the interior of the tubular porous body open to air; the suspension is allowed to permeate from the exterior of the tubular porous body to the interior thereof by hydraulic pressure of the suspension; the zeolite seed crystals are thereby attached to the exterior of the tubular orous body; and a seed crystal-attached porous body is obtained; and a zeolite membrane-forming step in which: a zeolite membrane is formed on the exterior of the tubular porous body by contacting the exterior of the seed crystal-attached tubular porous body with a reaction solution containing the raw material of the zeolite membrane; and a zeolite separation membrane is obtained.