| 摘要 |
<p>1475784 Metal sulphides Q-S OXYGEN PROCESSES Inc 3 May 1974 [3 May 1973] 47292/76 Divided out of 1475781 Heading C1A [Also in Division C7] A bath of liquid slag, containing metal valves, in a tiltable non-rotary sealed refractory-lined vessel has a carbonaceous reducing agent (e.g. coal), SO 2 and oxygen introduced upwardly therethrough to create reducing conditions and controlled turbulence in the slag and form metal sulphides which are then separated from the slag. Fe, Cu, Co and Ni sulphides are specified.</p> |
