Patent ID: 6056807
Filing Date: 2000-05-02
Classification: B01D,C01B,C01G,C01P,C04B

Abstract:
A fluid separation device capable of separating oxygen from an oxygen containing gaseous mixture which utilizes at least one solid-state membrane comprising a dense mixed conducting multicomponent metallic oxide layer formed from a mixed conducting multicomponent metallic oxide represented by the formulaLn.sub.x A'.sub.x A"".sub.x B.sub.y B'.sub.y O.sub.3-2,wherein Ln is an element selected from the f block lanthanides, A' is selected from Group 2, A"" is selected from Groups 1, 2 and 3 and the f block lanthanides, and B,B' are independently selected from the d block transition metals, excluding titanium and chromium, wherein 0.ltoreq.x<1, 0<x'.ltoreq.1, 0.ltoreq.x""<1, 0<y<1.1, 0.ltoreq.y'<1.1, x+x'+x""=1.0, 1.1>y+y'>1.0 and z is a number which renders the compound charge neutral.