| 摘要 |
The present invention provides a catalyst material and method for decomposition of chlorofluorocarbons to hydrofluoric acid, hydrochloric acid and carbon dioxide by the reaction with water. The catalyst material consists of a metal selected from the group consisting of Ti, Zr and Nb, or an alloy consisting of at least two elements selected from the same group. The catalyst material may also be composed of an alloy consisting of up to 80 at% of at least one element selected from the group consisting of Ni and Co and the substantial balance of at least one element selected from the group consisting of Ti, Zr and Nb. The metallic catalyst materials of the present invention have a very high catalytic activity for decomposition of flons at relatively low temperatures and can retain their high activity during the decomposition process, even if they are converted into fluorides. |
