| 摘要 |
<p>1316849 SO 2 METALLGESELLSCHAFT AG 21 Sept 1970 [26 Sept 1969] 44920/70 Heading ClA SO 2 is produced by burning S with less than the stoichiometric amount of free oxygen containing gas necessary for SO 2 production at atmospheric pressure, cooling the resulting SO 2 + S and after burning with free oxygen containing gas. Preferably the initial burning is carried out using 70-95% of the required O 2 , and the after burning is performed at less than 1000‹C.</p> |
