| 摘要 |
<p>PURPOSE:To increase the adsorbing amount of CO2 and to adsorb CO2 on zeolite at relatively low temp. CONSTITUTION:Zeolite is added to an aqueous solution containing a transition metal ion and the resulting dispersion is refluxed under heating to subject a metal in zeolite to the ion exchange with a transition metal to form a transition metal supported zeolite or sodium aluminate aqueous solution. When this aqueous solution is reacted with a sodium silicate aqueous solution, transition metal supported zeolite A obtained by adding an aqueous solution of an inorg. salt of a transition metal to a zeolite synthesizing mother liquid to react both of them is used as an adsorbent to be brought into contact with CO2 (-containing gas) at about 20-100 deg.C.</p> |
