| 摘要 |
<p>1,224,816. S02 from effluent gases. BERGWERKSVERBAND G.m.b.H. 2 Oct., 1968 [6 Oct., 1967], No. 46769/68. Heading C1A. A process for the purification of SO 2 -containing waste gases by absorption of the SO 2 by means of carbon-containing absorption agents which are impregnated with metal compounds at temperatures between 100‹ and 200‹ C. and which are thermally regenerated is characterized in that the metal compound is contained in a mixed catalyst comprising one or more compounds of V together with one or more compounds of the elements K, Li and/or Ba. In examples flue gas containing SO 2 , O 2 , H 2 O and N 2 are passed over a catalyst of V 2 O 5 , K 2 O and Li 2 O on a carbon carrier. Additionally the catalyst may contain P 2 O 5 .</p> |
