Patent ID: 8916238
Filing Date: 2014-12-23
Classification: B01D,B05C,B05D

Abstract:
1. A method of producing a composite that separates carbon dioxide that has a carbon dioxide separating film on a support, comprising in the following order: preparing, at greater than or equal to 50° C., a coating liquid for carbon dioxide separating film formation that contains a water absorbent polymer, a carbon dioxide carrier and a gelling agent, and that has the property of, after being left at 12° C. at a solution film thickness of less than or equal to 1 mm but greater than 0 mm, gelling within 120 seconds and liquid not dropping-off due to gravity; coating the coating liquid on a strip-shaped support; cooling, at less than or equal to 12° C., a coated film obtained by the coating, and obtaining a gel film; and drying the gel film at least by warm air, and obtaining a carbon dioxide separating film, wherein, from the coating to the drying are carried out continuously while conveying the support in a given direction.