| 摘要 |
<p>PURPOSE:To efficiently separate high-purity CO from a by-product gas in an iron mill by bringing sufficiently an HCl aq. soln. of CuCl into contact with a porous acidic oxide except the zeolite series such as Al2O3, thereafter removing the aq. soln. and using the obtained adsorbent. CONSTITUTION:An HCl aq. soln. of CuCl is sufficiently brought into contact with a porous acidic oxide except the zeolite series such as Al2O3 and SiO2 and thereafter the aq. soln. is removed. High-purity CO is efficiently separated and removed from a gaseous mixture contg. CO such as a by-product gas in an iron mill by using the prepared adsorbent. Since this adsorbent is a solid, the corrosion due to HCl or the like and the loss of the absorbed component are not caused and it has the high absorption performance without causing the deterioration properties due to H2O. As the porous acidic oxide except the zeolite series, 0.2-1.5cc/g narrow pore volume and 20-200Angstrom mean narrow pore diameter are desirable.</p> |
