Tubular membrane separation device with crossed tubes

Details Tubular membrane separation device with crossed tubes Tubular membrane separation device with crossed tubes

B - Operations, Transporting

01

D

26/160, 242/18,

B01D 53/22 (2006.01) B01D 63/02 (2006.01)

Patent

CA 1047412

ABSTRACT OF THE DISCLOSURE A fluid treatment apparatus comprising a receptacle and accomodated therein a multi-layered structure assembly composed of hollow filaments. The assembly consists of at least one multi-layered structure, and in the multi-layered structure, the filament orienting direction in a given layer intersects with that in a layer adjacent thereto at an angle of 10 to 90 degrees. The hollow filament used in the assembly can be produced, for example, by deacetylating hollow cellulose acetate filaments with a 0.25-10% by weight aqueous solution of sodium hydroxide or potassium hydroxide at a temperature of 65 to 100°C. The fluid treatment apparatus can be used for various separating operations for fluid mixtures, and its especially useful applica- tion is found in artificial kidneys.

208105

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