Patent ID: 6271172
Filing Date: 2001-08-07
Classification: B01D,B01J,Y02C

Abstract:
A method of preparing a carbonate gas absorbent, comprising:mixing a first raw material component and a second raw material component to form a powder mixture, wherein said first raw material component is a mixture of zirconia powder and lithium carbonate powder, and wherein said second raw material component is at least one material selected from the group consisting of (i) a powder of an oxide or a carbonate salt of an alkali metal except for lithium, and (ii) a powder of an oxide or a carbonate salt of an alkaline earth metal; andheating said powder mixture, wherein the heating causes the zirconia and the lithium carbonate to react to produce a lithium zirconia matrix and further causes remaining unreacted lithium carbonate to react with said alkali metal or alkaline earth metal oxide or carbonate, thereby forming a eutectic compound dispersed over the lithium zirconia matrix.