| 摘要 |
There is disclosed a process for producing a separation membrane which is capable of effectively inhibiting generation of a thick membrane portion where a thickness of the separation membrane partially increases. The process for producing the separation membrane includes a membrane forming step of passing a precursor solution 31 of the separation membrane through cells 2 of a monolith substrate 1 to form a separation membrane precursor 3 made of the precursor solution 31 on the surfaces of the cells 2; and then a cell suction step of sucking the insides of the cells 2 from open ends of the cells 2 in a first end face 11 of the monolith substrate 1, to suck and remove an excess portion of the precursor solution 31 which is present in the cells 2. |
