| 摘要 |
<p>PURPOSE: To efficiently purify exhaust gas containing poisonous components such as silane or the like by using a molded object with definite density compounded with cupric oxide and a metal hydroxide in a specific ratio as a purifying agent. CONSTITUTION: Cupric oxide and hydroxide of at least one kind of a metal selected from among lithium, magnesium, calcium, strontium and barium are compounded as a purifying agent. The atomic ratio M/(M+Cu) [wherein Cu is an atomic number of Cu and M is the number of atoms of Li, Mg or the like (or the sum total of the number of atoms when these components are two or more)] of metals of this compsn. is set to 0.01-0.7. This compsn. is molded to obtain a molded object with density of 1.5-3.5g/ml. This purifying agent has high removing capacity and a high removing speed and can remove a poisonous component at the normal temp. regardless of the concn. of hydride.</p> |
