PEROVSKITE TYPE ION CONDUCTIVITY BSCF TUBE SHAPE OXYGEN SEPARATING FILM AND MANUFACTURING METHOD THEREOF WITH IMPROVED THE DEGREE OF FINENESS, THE DEGREE OF OXYGEN PERMEATION AND DURABILITY BEAING COATED WITH LSTF OXIDES

摘要

PURPOSE: A perovskite type ion conductivity tube shape oxygen separating film and a manufacturing method are provided to use serviceably to oxygen separation from the air with carbon dioxide as the oxygen permeation degree and the thermal stability are improved a lot in high pressure and temperature compare to the separation film which is not coated.;CONSTITUTION: A perovskite type ion conductivity tube shape oxygen separating film has the composition of the Ba1-xSrxCo1-yFeyO3- and is coated with the La1-xSrxTi1-yFeyO3-. In a chemical formula, it is 0=x=1, 0=y=1. The manufacturing method of the perovskite type ion conductivity tube shape oxygen separating film comprises following step; the step of dry mixing in the ratio of the respective 8 - 11 of BSCF powder versus 1 of binder; a step that mixes in a liquid state with a weight ratio in 2-3 of diluted substance versus 1 of a plasticizer after diluting the polyethylene glycol with 8 to 11 times of distilled water; a step that produces a pipe shape separating film by compress molding the mixture; the step that produces a fine type separating film by drying and plasticizing the produced pipe shape separating film; a step that soaks and coats the pipe shape separating film in a colloidal suspension solution which has 20-40 % of LSTF powder; and a step that produces a LSTF coated BSCF fine type separating film by drying and plasticizing the coated pipe shape separating film.;COPYRIGHT KIPO 2013